STV2238_技术文档

STV224X, STV228X, STV223X

I²C bus-controlled multistandard

single chip TV processor

■ I²C Bus Control

■ PIF Circuit with PLL Demodulation

(Positive and Negative Video)

■ SIF Circuit with QSS Structure, FM

Demodulation and AM Demodulation for France

■ Intercarrier Capability

■ Built-in Sound Bandpass

■ Sound Subcarrier Output for Stereo Chassis

(FM, NICAM)

SHRINK56

(Plastic Package)

ORDER CODE: STV224XH/8XH

■ Audio FM wide mode

■ Audio Switch and Volume Control (Mono

Chassis)

■ AVL (Automatic Volume Levelling)

■ Integrated Chroma Filters and Luma Delay Line

■ Integrated Chroma Delay Line

■ Video Switch (3 CVBS In, 2 CVBS Out)

■ SVHS Switch (Y Combined with CVBS3 Input)

■ OSD RGB Inputs

■ External RGB/YCrCb Inputs or YUV Interface

■ PAL / SECAM / NTSC Chroma Demodulators

■ Auto Flesh Control Capability in NTSC mode

TQFP64 (14 x 14 x 1.4 mm)

(Full Thin Plastic Quad Flat Pack)

ORDER CODE: STV223XH

Device summary

■ South America Capability (PAL-M / PAL-N /

NTSC)

Device

Package

Application

PAL/NTSC

Intercarrier

■ Chroma Subcarrier Output

■ Black Stretch Circuit

■ Peaking Circuit

■ Automatic Cut-off Current Loop

■ Manual Cut-off possible for low-cost

applications

■ Two Horizontal Deflection PLLs

■ Vertical Countdown

■ Half Contrast

■ APR (Automatic RGB Peak Regulation) or RGB

Peak Limitation Function

■ White Insertion

■ Copy Protection mode

■ Wide Line Blanking mode

STV2246

SHRINK56

PAL/NTSC

Intercarrier

STV2236

STV2286

STV2247

STV2237

TQFP64

SHRINK56

TQFP64

PAL/NTSC

Intercarrier

PAL/NTSC

QSS/Intercarrier

PAL/NTSC

QSS/Intercarrier

PAL/SECAM/NTSC

QSS/Intercarrier

AM

STV2248

STV2238

SHRINK56

TQFP64

PAL/SECAM/NTSC

QSS/Intercarrier

AM

PAL/SECAM/NTSC

QSS/Intercarrier

■ SAW Filter Switch Control (TQFP64 package

STV2249

STV2239

SHRINK56

TQFP64

only)

PAL/SECAM/NTSC

QSS/Intercarrier

■ Very Few External Components

September 2009

Doc ID 9771 Rev 4

1/86

1

Table of Contents

1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 DETAILED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.1 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.2 Picture Intermediate Frequency (PIF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.3 Sound Intermediate Frequency (SIF) and Sound Demodulators . . . . . . . . . . . . . . . 20

3.1.4 Audio Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.6 Video Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2 DEFLECTION PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.2 Two Phase-Locked Loops (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.3 Video Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.4 Vertical Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.5 Vertical Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.6 Vertical Oversize Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.8 Vertical Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.9 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.10Horizontal Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.11Combined Line Flyback / Super-Sandcastle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.12Line Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2.13Copy Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.1 Integrated Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.2 Integrated Chroma Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.3 Integrated Bell Filter for SECAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.4 Integrated Luma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.5 Filter Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4 VIDEO CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.1 RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.2 YCrCb Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.3 Half-Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.4 YUV to RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.5 Automatic Cut-off Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.6 Warm-up Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.7 Beam Current Limiter DC Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.8 Drive (RGB gain) and DC Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.9 Bus-controlled Contrast & Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.10Bus-controlled Brightness & Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.11Bus-controlled Coring on Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.12Black Stretch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.13Bus-controlled Blue Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.14White Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.15Automatic RGB Peak Regulation (APR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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3.4.16RGB Peak Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.5 CHROMA CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.5.1 PAL/SECAM/NTSC Decoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.5.2 PAL/NTSC Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.5.3 SECAM Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.5.4 Chroma Standard Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.2 THERMAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3 SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.4 IF SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4.1 PIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4.2 PIFAGC Negative Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4.3 PIFAGC Positive Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4.4 Tuner AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4.5 Synchronous Video Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.4.6 Demodulated Video Output (INTCVBSOUT Pin) . . . . . . . . . . . . . . . . . . . . . . . . 28

4.4.7 SIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4.8 SIF AGC (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4.9 SIF AGC (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4.10FM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4.11De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4.12AM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4.13SIF Output (AM/FM or Sound Subcarriers Output) . . . . . . . . . . . . . . . . . . . . . . . 30

4.4.14SAW Filter Switch Output (TQFP64 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4.15External Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4.16Main Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4.17AVL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.5.1 Luminance & CVBS Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.5.2 Combined Chrominance & SVHS Selection Input . . . . . . . . . . . . . . . . . . . . . . . 31

4.5.3 CVBS1 Output (Pin 29 - SDIP56) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.5.4 CVBS2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.5.5 OSD RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.5.6 FBOSD/HC Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.5.7 External RGB/YCrCb Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.5.8 External Fast Blanking Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6 LUMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6.1 Y Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6.2 Peaking Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6.3 Black Stretch Control (Pin BS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.6.4 Y Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.7 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.7.1 Y Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.7.2 Chrominance Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5

4.7.3 Bell Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8 CHROMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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Table of Contents

4.8.1 ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.2 ACC Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.3 Killer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.4 Chroma PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.5 PLL Loop Filter (PAL/NTSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.6 Hue Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.7 Automatic Flesh Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.8.8 Color Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.8.9 Chroma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.8.10Chroma Reference Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.9 SCANNING PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.9.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.9.2 Horizontal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.9.3 First Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.9.4 Second Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.9.5 Line Flyback Input/Super-Sandcastle Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.9.6 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.9.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.9.8 Vertical Amplitude Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.9.9 Crystal Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10 RGB CONTROL PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10.1Y Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10.2U & V Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10.3Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10.4Saturation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.10.5Brightness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.6RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.7Drive Adjustment (White Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.8Cut-Off Adjustment (Black Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.9Cathode Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.10Beam Current Limiter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.10.11Automatic RGB Peak Regulation (APR) / RGB Peak Limitation . . . . . . . . . . . . . . 40

4.10.12RGB Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.11 I²C BUS CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4.11.1SCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4.11.2SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4.11.3I²C Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5 I²C BUS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6 I²C BUS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1 SUMMARY INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.2 SUMMARY OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3 INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.3.1 PIFVCO Free Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.3.2 PIF Free Running Coarse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.3.3 PIF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.3.4 Tuner Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.5 SIF Features and Audio Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.6 Video Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4/86

Table of Contents

6.3.7 Chroma Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.3.8 Scanning Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

6.3.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.4 OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS . . . . . . . . . . . . . . . . . . . . 56

7 I²C BUS SPECIFICATION COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8 INPUT/OUTPUT SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

9 APPLICATION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

11 GENERAL PACKAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

11.1 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

12 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

5

5/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma

and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis,

STV9306 for a 110° chassis), they allow multistandard (BGDKIMNLL’, PAL/SECAM/NTSC) sets to be de-

signed with very few external components and no manual adjustments.

Application

PAL/SECAM/NTSC

QSS/Intercarrier

AM

Package

PAL/NTSC

Intercarrier

PAL/NTSC

QSS/Intercarrier

PAL/SECAM/NTSC

QSS/Intercarrier

SHRINK56

TQFP64

STV2246H/86H

STV2236H

STV2247H

STV2237H

STV2248H

STV2238H

STV2249H

STV2239H

Function

2246H/36H

2286H

2247H/37H 2248H/38H 2249H/39H

PAL/SECAM/NTSC

PAL/NTSC

X

QSS/Intercarrier

Intercarrier Only

AM

X

Audio FM Wide mode with QSS Application

1 EXT RGB Input (OSD)

X

OSD RGB Inputs & RGBEXT/YCrCb Inputs

X

1.2 PIN DESCRIPTION

Table 1. Pin Configuration

STV224XH/228XH

STV223XH

Symbol

Description

SDIP56

TQFP64

8

1

2

SIFIN1

SIFIN2

SIF Input (Please refer to Note 1)

9

3

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

AGCSIFCAP

AGC SIF Capacitor (Please refer to Note 1)

Voltage Reference Filtering

AGC PIF Capacitor

PIF Input

4

V

REFIF

5

AGCPIFCAP

PIFIN1

6

7

PIFIN2

PIF Input

-

SAW

Filter Switch Control

AGC Tuner Output

IF PLL Filter

8

TUNERAGCOUT

IFPLL

9

10

11

12

13

14

15

16

17

18

GND

IF Ground

IF

AM/FMOUT/SC

AM/FM Mono Sound or Stereo Carriers Output

5 V IF Supply

V

CCIF

INTCVBSOUT

EXTAUDIOIN

PIFLC1

Internal CVBS Output

External Audio Input

LC Input

PIFLC2

LC Input

V

Video/Luma Supply Voltage (8 V)

Internal Video Input

CC2

CVBSIN1

6/86

2

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

STV224XH/228XH

STV223XH

TQFP64

27

Symbol

Description

Video/Luma Ground

SDIP56

19

GND2

20

28

CVBSIN2

BS

External Video Input

21

29

Black Stretch Capacitor

22

34

Y/CVBSIN3

CHR

Y(SVHS) or CVBS3 External Input

Chroma (SVHS) Input

23

35

24

36

APR

Automatic RGB Peak Regulation

External Blue Input or external Cb Input

(Please refer to Note 2)

25

26

27

28

29

37

38

39

40

41

BEXT/Cb

External Green Input or external Y Input

(Please refer to Note 2)

GEXT/Y

External Red Input or external Cr Input

(Please refer to Note 2)

REXT/Cr

External Fast Blanking Input (Please refer to

Note 3)

FBEXT

Not To Be Connected or CVBS Output 1

(Please refer to Note 4)

NTBC/CVBSOUT1

30

31

32

33

34

35

36

37

38

39

40

41

43

44

45

46

47

48

49

50

52

53

54

55

BOUT

GOUT

ROUT

Blue Output

Green Output

Red Output

I

Cathode Current Measurement Input

OSD Blue Input

CATH

BOSD

GOSD

OSD Green Input

ROSD

OSD Red Input

FBOSD/HC

XTAL3/BTUN

XTAL2

OSD Fast Blanking Input / Half Contrast

3.5X MHz Crystal or Bell Filter Tuning Capacitor

3.5X MHz Crystal

XTAL1

4.43/3.5X MHz Crystal

Chroma PLL Filter

CLPF

XTAL1 Control Pin, Vertical Amplitude DAC

Output and Chroma Reference Signal Output

42

56

X1/VAMP/CHROUT

43

44

45

57

58

59

GND1

Chroma/Scanning Ground

CVBSOUT2

Second Video Switch Output

Chroma/Scanning Power Supply (8 V)

V

CC1

Beam Current Limiter Control Voltage and Safe-

ty Input (XRAY)

46

61

BCL/SAF

47

48

62

63

VERT

HOUT

Vertical Output Pulse

Horizontal Output Pulse

Line Flyback Input and Super-Sandcastle Out-

put

49

64

LFB/SSC

50

51

52

53

54

55

56

-

1

2

SLPF

SCL

Scanning PLL Filter

I²C Bus Clock Input

3

SDA

I²C Bus Data Input

4

V

Digital Supply Voltage (5 V)

Digital Ground

CCD

5

GNDD

6

AUDIOOUT

FMCAP

NC

Main Audio Output

7

FM Demodulation Capacitor

Connection to GND recommended

30

7/86

2

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

STV224XH/228XH

STV223XH

Symbol

Description

SDIP56

TQFP64

31

-

NC

Connection to GND recommended

32

33

42

51

60

Note 1: Input/Output not available in STV2246H/86H versions. This pin must not be connected.

Note 2: When REXT, GEXT and BEXT pins are not used, they must not be connected. Register 0Ah must be set (d7 and

d6 = 01). (RGB external inputs disabled.)

Note 3: FBEXT to be connected to ground when not used.

Note 4: CVBS output 1 on pin 29 (SDIP56), if register 1Dh = 07h.

Figure 1. STV224XH/228XH Pinout (SDIP56)

1

FMCAP

SIFIN1

SIFIN2

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

2

AUDIOOUT

GNDD

3

AGCSIFCAP

4

V

REFIF

CCD

AGCPIFCAP

PIFIN1

5

SDA

SCL

6

7

PIFIN2

TUNERAGCOUT

IFPLL

SLPF

8

LFB/SSC

HOUT

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

GND

VERT

IF

AM/FMOUT/SC

BCL/SAF

V

CCIF

CC1

INTCVBSOUT

EXTAUDIOIN

PIFLC1

CVBSOUT2

GND1

X1/VAMP/CHROUT

CLPF

PIFLC2

V

XTAL1

CC2

CVBSIN1

GND2

XTAL2

XTAL3/BTUN

FBOSD/HC

CVBSIN2

BS

ROSD

GOSD

Y/CVBSIN3

CHR

APR

BOSD

I

CATH

BEXT/Cb

GEXT/Y

REXT/Cr

ROUT

GOUT

BOUT

NTBC/CVBSOUT1

FBEXT

Note: Underlined pin functions are optional.

8/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 2. STV223Xh Pinout (TQFP64)

NC

Y/CVBSIN3

CHR

TUNERAGCOUT

SAW

PIFIN2

PIFIN1

APR

BEXT/Cb

AGCPIFCAP

V

GEXT/Y

REFIF

AGCSIFCAP

SIFIN2

REXT/Cr

FBEXT

NTBC/CVBSOUT1

NC

SIFIN1

FMCAP

AUDIOOUT

GNDD

BOUT

GOUT

ROUT

V

CCD

I

SDA

SCL

CATH

BOSD

GOSD

SLPF

9/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 3. STV2246H (SDIP56) Block Diagram

LFB/SSC

SLPF

REXT/Cr

GEXT/Y

BEXT/Cb

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

XTAL3

CVBSOUT2

NTBC/CVBSOUT1

FMOUT

CVBSIN1

CVBSIN2

EXTAUDIOIN

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

V_REF

PIFLC2

PIFLC1

SCL

SDA

10/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 4. STV2247H (SDIP56) Block Diagram

REXT/Cr

GEXT/Y

BEXT/Cb

LFB/SSC

SLPF

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

XTAL3

CVBSOUT2

NTBC/CVBSOUT1

Sound Subcarriers

FMOUT/SC

FM Mono

CVBSIN1

CVBSIN2

EXTAUDIOIN

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

V_REF

PIFLC2

PIFLC1

SCL

SDA

11/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 5. STV2248H (SDIP56) Block Diagram

LFB/SSC

SLPF

REXT/Cr

GEXT/Y

BEXT/Cb

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

CVBSOUT2

NTBC/CVBSOUT1

XTAL3/BTUN

CVBSIN1

CVBSIN2

Sound Subcarrier

FM Mono

AM/FMOUT/SC

EXTAUDIOIN

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REF

SCL

SDA

12/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 6. STV2249H (SDIP56) Block Diagram

LFB/SSC

SLPF

REXT/Cr

GEXT/Y

BEXT/Cb

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

BS

XTAL2

CVBSOUT2

NTBC/CVBSOUT1

XTAL3/BTUN

CVBSIN1

Sound Subcarrier

CVBSIN2

FM

FMOUT/SC

Mono

Y/CVBSIN3

EXTAUDIOIN

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REF

SCL

SDA

13/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 7. STV2286H (SDIP56) Block Diagram

NTBC

LFB/SSC

SLPF

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

XTAL3

CVBSOUT2

NTBC/CVBSOUT1

FMOUT

CVBSIN1

CVBSIN2

Y/CVBSIN3

EXTAUDIOIN

FM Mono

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

V_REF

PIFLC2

PIFLC1

SCL

SDA

14/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 8. STV2236H (TQFP64) Block Diagram

BEXT/Cb

GEXT/Y

REXT/Cr

LFB/SSC

SLPF

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

XTAL3

BS

CVBSOUT2

CVBSOUT1

FMOUT

CVBSIN1

CVBSIN2

EXTAUDIOIN

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REFIF

SCL

SDA

15/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 9. STV2237H (TQFP64) Block Diagram

BEXT/Cb

GEXT/Y

REXT/Cr

LFB/SSC

SLPF

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

XTAL3

BS

CVBSOUT2

CVBSOUT1

Sound Subcarriers

FM Mono

FMOUT/SC

CVBSIN1

CVBSIN2

EXTAUDIOIN

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REFIF

SCL

SDA

16/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 10. STV2238H (TQFP64) Block Diagram

BEXT/Cb

GEXT/Y

REXT/Cr

LFB/SSC

SLPF

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

CVBSOUT2

CVBSOUT1

XTAL3/BTUN

CVBSIN1

AM/FMOUT/SC

EXTAUDIOIN

Sound Subcarriers

CVBSIN2

Y/CVBSIN3

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REFIF

SCL

SDA

17/86

STV224X, STV228X, STV223X - GENERAL DESCRIPTION

Figure 11. STV2239H (TQFP64) Block Diagram

BEXT/Cb

GEXT/Y

REXT/Cr

LFB/SSC

SLPF

FBEXT

X1/VAMP/CHROUT

CLPF

XTAL1

XTAL2

BS

CVBSOUT2

CVBSOUT1

XTAL3/BTUN

Sound Subcarriers

FM Mono

CVBSIN1

CVBSIN2

FMOUT/SC

Y/CVBSIN3

EXTAUDIOIN

CHR

FMCAP

INTCVBSOUT

IFPLL

AUDIOOUT

PIFLC2

PIFLC1

V_REFIF

SCL

SDA

18/86

STV224X, STV228X, STV223X - MAIN FEATURES

2 MAIN FEATURES

■ I²C Bus control (Read and Write modes).

■ Integrated luminance delay line.

■ PLL PIF demodulator, bus-controlled VCO

alignment.

■ Adjustable peaking on the luminance signal with

coring function.

■ Positive and negative IF modulation.

■ Digital AFC.

■ Tuner-delayed AGC output.

■ White and Black Spot cancellation.

■ SIF with QSS structure.

■ Intercarrier capability.

■ Built-in sound bandpass.

■ Multistandard PLL FM Demodulator (4.5, 5.5,

6.0, 6.5 MHz).

■ Audio FM Wide mode (BGDKI): Capable of

demodulating 400 kHz overmodulated audio

signals, to be used in QSS architecture.

■ AM demodulator for France.

■ Sound subcarrier output for Stereo chassis: FM

and NICAM carriers.

■ Audio switch for external audio input, Mono

chassis.

■ Digital volume control.

■ Audio Mute.

■ Automatic Volume Levelling (AVL) on audio

signal (internal or external audio).

■ Digital buffer for SAW filter switching.

■ Video switch, three Composite Video

Broadcasting Signal (CVBS) inputs and two

CVBS outputs (which can be used to drive a

teletext decoder).

■ SVHS switch, Y input is combined with CVBS3

input.

■ Black Stretch circuit.

■ Automatic RGB peak regulation (APR) or RGB

peak limitation.

■ PAL/SECAM/NTSC color decoder with

automatic identification of standards.

■ Integrated chroma delay line.

■ Full integrated SECAM decoder.

■ Hue control, 2 selectable matrices in NTSC

mode.

■ Automatic Flesh Control circuit with two

selectable characteristics (normal and wide).

■ Automatic Color Control (ACC) overload circuit.

■ Chroma subcarrier output which could be used

to drive a comb filter circuit.

■ Automatic digital cut-off current loop with warm-

up detection circuit.

■ White point (drive) and cut-off point

adjustments.

■ Manual cut-off capability.

■ Beam current limiter control stage.

■ High-performance sync pulse separator.

■ Horizontal synchronization with two phase-

locked loops.

■ Integrated VCO, auto-calibration using the

chroma crystal reference frequency.

■ Automatic time constant selection for the first

PLL, three selectable time constants.

■ Video identification circuit (independent from

PLL1).

■ Noise detector circuit.

■ Capability to output Y+C signal on second

CVBS output.

■ OSD RGB analog inputs, fast blanking

detection on fast blanking OSD pin, contrast

control capability.

■ Vertical countdown circuit.

■ Automatic 50/60 Hz selection circuit.

■ Blanking and inserted cut-off pulses position

adapted to standard (50 or 60 Hz).

■ Half-contrast control pin.

■ External analog RGB inputs with contrast and

saturation control (external RGB matrixed in

YUV). External analog YCrCb inputs can be

connected to the same inputs. In this case, the

sync signal must be sent to the CVBS input, and

External YCrCb mode must be selected through

the I²C bus.

■ Long blanking mode capability in 60 Hz (same

blanking as with 50 Hz standard).

■ De-interlace capability.

■ Horizontal starting circuit with soft-start

capability.

■ Horizontal and vertical position adjustments,

vertical amplitude control voltage (combined

with chroma subcarrier output).

■ Y,U,V inputs outputs: Y,U,V inputs/outputs for

the use of enhanced picture ICs.

■ Oversize Blanking capability on OSD Fast

Blanking input.

■ Integrated chroma filters (trap, bandpass, bell)

with automatic alignment.

19/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

3 FUNCTIONAL DESCRIPTION

The STV224XH/228XH is an integrated device

that processes PIF, SIF, Video and Chroma sig-

nals while scanning for PAL, SECAM and NTSC

standards. It includes a base band chroma delay

line, Video, SVHS and audio switches.

– Built-in sound bandpass.

– PLL FM Demodulator for 4.5, 5.5, 6.0 or 6.5 MHz

carriers. The Sound Standard is selected by the

MCU. The FM demodulator VCO is automatically

calibrated using the chroma crystal VCO refer-

ence frequency. The FM Demodulator VCO is

automatically calibrated for all sound standards

independently of the chroma crystal VCO fre-

quency, which is either 4.4 MHz or 3.5 MHz. For

each sound carrier frequency, the IC sends an

indication of the sound subcarrier level to the

MCU so that it can select the proper standard.

In Normal mode, the maximum FM deviation is

200 kHz. In Audio FM Wide mode (BGDKI), the

maximum FM deviation is 400 kHz. The Audio

FM Wide mode of the STV224XH must be used

in QSS applications only, using standard specific

SAW filters (DK SAW filter or BG SAW filter).

3.1 DETAILED FEATURES

3.1.1 Power Supplies

V_CCIF: 5 V power supply dedicated to IF proces-

sors. GNDIF is the ground reference of these

parts.

V

_CCD: 5 V power supply dedicated to I²C bus and

digital parts. GNDD is the ground reference of

these parts.

V_CC1: 8 V power supply for video switches, scan-

ning part and the chroma decoder. GND 1 is the

ground reference of all these functions.

– The sound subcarrier level is valid when the FM

Demodulation VCO is calibrated. This informa-

tion can be read via the I²C Bus.

V_CC2: 8 V power supply for the luminance, RGB

processing parts audio switch and internal CVBS

output. GND2 is the ground reference of these

parts.

– Bus controls for FM de-emphasis (50 or 75 µs)

and FM deviation 25 or 50 kHz).

3.1.2 Picture Intermediate Frequency (PIF)

– AM demodulator.

– AGC amplifier.

– Sound demodulator output: either an AM or FM

signal can be the output for the Mono chassis

– PLL synchronous demodulator. Bus-controlled

VCO for integrated tuning of the external LC res-

onator. For a 38.9 MHz VCO, the LC coil specifi-

cation has to be:

– Sound subcarriers for the Stereo chassis.

3.1.4 Audio Switch

C = 39pF, f = 44 MHz 2ꢀ (LC not connected).

For a 33.9 MHz VCO (L’), the VCO can be

switched via the bus control.

– One SCART switch.

– Bus-controlled volume and mute. Zero-crossing

function on volume control.

– Digital AFC via bus.

– Automatic Volume Levelling (AVL) function can

be enabled via the I²C bus.

– IF Automatic Gain Control (AGC)

Negative modulation: top sync regulation, regu-

lation of overmodulated signals (overmodulation

regulation circuit enabled through bus control).

Positive modulation: main regulation on white

level with black level limitation.

– AVL status (Min. or Max. AVL Gain) can be read

in I²C bus register.

– The AM sound can be selected on the main au-

dio output for the Stereo chassis.

– Tuner-delayed AGC with bus control for AGC

gain and threshold. Tuner AGC output status can

be read in I²C bus read register.

3.1.5 Surface Acoustic Wave (SAW) Filter

Switch Control

– SAW filter switch control pin is available in the

TQFP64 package. The SAW filter switch control

pin is used to select the correct SAW filter char-

acteristics (e.g.: M/N or BGDK characteristics).

In a multi-standard chassis, two output voltages

are selected via the I²C bus (low level voltage at

0.4 V Max., and high level voltage at 4 V Min.).

– CVBS output with two bus-controlled ampli-

tudes. CVBS output at 2 V_PPif external sound

trap is not connected (QSS mode, for example).

CVBS output at 2.3 V_PPif external sound trap is

connected.

3.1.3 Sound Intermediate Frequency (SIF) and

Sound Demodulators

3.1.6 Video Switches

– QSS structure.

– Video switch with three CVBS inputs and one

CVBS output (CVBSOUT1) which may be used

to drive a teletext decoder.

– SIF Automatic Gain Control (QSS mode).

20/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

– A second CVBS output (CVBSOUT2) is able to

output recombined Y+C signals.

All switches are independently controlled.

– 50 Hz input signal:

short time constant: [306,21],

long time constant: the rest of the field.

– SVHS switch, Y input is combined with CVBS 3

input. CVBS/SVHS modes can be selected ei-

ther by bus control (software selection), or by

sensing the DC voltage on the Chroma Input pin

(hardware selection). If the Chroma Input is

grounded, the CVBS mode is selected and the

bus control is not active. If the DC level of the

Chroma Input is higher than the SVHS threshold,

then the bus control for the SVHS switch is ac-

tive. Therefore, the SVHS mode can be selected

by hardware using a special SVHS connector

that includes a mechanical switch. In this type of

application, the bus control is set to SVHS mode,

and the CVBS mode is selected by grounding the

Chroma Input pin.

– 60 Hz input signal:

short time constant: [0,16],

long time constant: the rest of the field.

3.2.2.1 Inhibition of the First PLL

The first PLL is inhibited from line 309 to line 4.5

(or 314) in 50 Hz mode and from line 258 to line

5.5 (or 264) in 60 Hz mode. The time constant val-

ues are chosen by means of external components.

– Possibility of forcing the short time constant dur-

ing the all frame via the bus.

– Possibility of forcing the long time constant dur-

ing the all frame via the bus.

– Possibility of forcing a very long time constant

during the all frame via the bus.

Generation of burst gate pulses and line frequency

signals from the first PLL to drive the Chroma and

Video circuits. The burst gate pulse is also sent to

the super-sandcastle generator.

3.2 DEFLECTION PART

3.2.1 Synchronization Separator

– Fully-integrated synchronization separator with a

low pass filter, black level alignment of the CVBS

input, and a 50ꢀ slicing level for the synchro-

nized pulse amplitude.

3.2.3 Video Identification

The video identification status is available in the

output register of the I²C bus decoder (independ-

ent from PLL1).

3.2.2 Two Phase-Locked Loops (PLL)

Auto-calibrated VCO using the chroma crystal ref-

erence. Crystal control pin X1/VAMP/CHROUT in-

dicates the crystal reference value on Pin XTAL1.

3.2.4 Vertical Synchronization

Frame synchronized window:

– large window: [248,352] in AUTO mode,

[248,284] in forced 60 Hz mode, [288,352] in

forced 50 Hz mode.

When

a 4.43 MHz crystal is connected to

Pin XTAL1, the output load on Pin X1/VAMP/

CHROUT must be greater than 80 kΩ. When a

3.58 MHz crystal is connected to Pin XTAL1, the

output load must be less than 10 kΩ.

– narrow window: [309,314] in 50 Hz mode,

[258,264] in 60 Hz mode.

Field frequency selection windows:

– [248,284] 60 Hz mode selection window.

– [288,352] 50 Hz mode selection window.

Frame blanking pulse adapted to standard:

– from line 309 to line 21 in 50 Hz mode,

– from line 258 to line 16 in 60 Hz mode.

3.2.5 Vertical Blanking

The first PLL locks the VCO to the video line fre-

quency and the second PLL compensates the line

transistor storage time.

Three time constants for the first PLL.

– [X,Y]: Line number referring to the internal line

counter numbering system.

The long time constant is used for normal opera-

tion.

Long blanking mode: the end of frame blanking is

line 21 both in 50 and 60 Hz modes. This mode is

useful when the flyback time of the vertical output

stage is longer than the 60 Hz blanking time. It is

used to optimize the 50/60 Hz vertical amplifier ap-

plication due to long frame blanking.

The short time constant is automatically used dur-

ing the VCR search mode and frame retrace when

the frame pulse is outside [258,264] and

[309,314].

The very long time constant is used when there is

no video recognition (very good OSD stability).

3.2.6 Vertical Oversize Blanking

Time constants in normal operation (automatic se-

lection of time constants):

The Oversized Blanking function is controlled by

the voltage on the FBOSD pin. When the FBOSD

voltage is between the first and the second thresh-

21/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

olds, the OSD RGB signals are selected. When

pulse is maintained until V_CC1is less than 3 V

(V_CC1power supply is switched off). The Safety

function can be disabled via the I²C bus. When

register 15hex data D7 is set to “1”, the Safety

function is reset and no longer active.

the FBOSD voltage is greater than the second

threshold (4 V blanking threshold), the RGB out-

puts are blanked during the whole field, but not

during inserted cut-off lines (the cut-off loop is al-

ways active). The blanking feature, via the FBOSD

input pin, enables Vertical Oversize Blanking

when a 4:3 picture is displayed on a 16:9 screen in

Zoom mode. The picture outside the screen is

blanked by the Oversize Blanking pulse supplied

by the external vertical IC (STV9306).

3.2.11 Combined Line Flyback

Sandcastle

/

Super-

Combined Line Flyback input and Super-Sandcas-

tle output: The line blanking level is clamped at

3 V, the burst key pulse voltage is 5 V and vertical

pulse voltage is 2 V. The line pulse is extracted

with a 2.5 V slicing level used for RGB line blank-

ing and PLL2 control.

3.2.7 Vertical Output

The Vertical output pulse is locked on a pulse that

is twice the horizontal frequency to ensure perfect

interlacing.

3.2.12 Line Blanking

Line blanking at RGB outputs is logical OR of line

flyback pulse and internal line blanking pulse with

a 12 µs width.

The Vertical output pulse duration is 10.5 lines.

Horizontal output pulse is a 28 µs line pulse on an

open collector output.

In Wide Line Blanking mode, line blanking at RGB

outputs is logical OR of line flyback pulse and in-

ternal line blanking pulse with a 15.8 µs width.

3.2.8 Vertical Control

Bus-controlled DC output voltage for adjusting the

vertical amplitude (pin VAMP). This voltage supply

is used to adjust the slope of the vertical sawtooth

generated by the external vertical booster.

Wide line blanking is recommended when display-

ing a 4:3 image on a 16:9 screen (horizontal scan-

ning reduction).

Bus-controlled vertical position (pin VERT). The

high level of the vertical pulse is used to adjust the

vertical position.

3.2.13 Copy Protection Mode

This mode is used to improve the display of copy-

protected video signals.

The bus-controlled vertical output (pin VERT) low

level voltage can be either 0.2 V or 2.0 V.

3.3 FILTERS

3.2.9 Horizontal Output

3.3.1 Integrated Trap Filter

Q = 1.5 (f-3dB = f0 (1-1/2Q)),

Center frequency:

Start-up circuit: the horizontal output is at high lev-

el (disabled) when V_CC1increases from 0 to 6.0 V

and when V_CCDhas not reached 4 V.

Soft mode circuit: it provides a softer operating

– 4.43 MHz, 3.58 MHz for PAL and NTSC.

horizontal output with a 75ꢀ duty cycle [t_HIGH

/

– 4.25 MHz, for SECAM

(-20 dB rejection between 4.1 MHz and

4.4 MHz).

(t_HIGH+t_LOW)]. This results in a smaller conducting

time (16 µs instead of 28 µs).

This mode is active at start-up until two frames af-

ter the V_CC2reaches 75ꢀ of the V_CC1. It is also

active at shutdown when the V_CC1floats between

6 V and 5.4 V. And finally, this mode is used if the

The chroma trap filter is switched off in SVHS

mode, or in color standard search mode (standard

not identified). In external YCrCb mode, the trap

and luma delay can be switched off via the I²C bus.

V_CC2drops below 75ꢀ of the V_CC1

.

3.3.2 Integrated Chroma Bandpass

At shutdown, horizontal pulses are disabled when

V

_CC1is less than 5.4 V or when V_CCDis less than

Q = 3.5, Center frequency: 4.43 MHz, 3.58 MHz.

The Bus Control Frequency Shift is used to opti-

mize the chroma response for the video signal

from the IF stage.

3.5 V.

The horizontal output pulse may be disabled via

the bus (force a high level on HOUT).

3.3.3 Integrated Bell Filter for SECAM

The horizontal position adjustment is controlled via

the bus.

Q = 16, Center frequency: 4.286 MHz.

The Bus Control Frequency Shift is used to opti-

mize the chroma response for the video signal

from the IF stage.

3.2.10 Horizontal Control

Safety input on BCL Pin. When the BCL Pin is

switched to ground, the horizontal output pulse is

disabled and the inhibition of horizontal output

22/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

3.3.4 Integrated Luma Delay Line

plied to GEXT. The trap and luma delay line must

be disabled by the I²C bus and peaking must be

set to minimum.

Bandwidth: 8 MHz.

The Luma Delay Line is automatically adapted to

the chroma standard. For PAL BG and applica-

tions without group delay compensation, a Luma

Delay Shift of -140 ns can be selected via the I²C

bus.

The OSD fast blanking input has several functions:

OSD Insertion Control, RGB Output Blanking or

Half Contrast Control.

3.4.3 Half-Contrast Control

3.3.5 Filter Tuning

A 6 dB gain reduction will be applied to the internal

YUV signals when the half-contrast function is

turned ON, and the voltage of the half-contrast in-

put exceeds the threshold (0.7 V Typ.).

All filters are tuned via a reference phase-locked

loop. The PLL is based on a trap filter, a phase

comparator and an internal loop filter (capacitor).

The reference signal is the continuous carrier

wave from the Chroma VCO (4.43 MHz or

3.58 MHz). The PLL adjusts the center frequency

of the trap until it equals the reference signal.The

PLL tuning voltage is used to adjust all other inte-

grated filters. The Bell filter is fine-tuned with a

second PLL during the frame retrace. The Bell fil-

ter tuning voltage is memorized on an external ca-

pacitor (BTUN Pin).

The Half Contrast input is combined with the

FBOSD input.

3.4.4 YUV to RGB Matrix

The PAL/SECAM matrix is provided and a specific

NTSC matrix is used when demodulation angles

are (0°,104°).

3.4.5 Automatic Cut-off Current Loop

The Cut-off Loop range is 2 V (the cut-off level of

the RGB outputs is between 1.5 V and 3.5 V,

2.5 V Typ.). The cut-off current is measured se-

quentially during the three lines after the internal

frame blanking signal (the blue cathode current is

measured first, then the green and red). The Leak-

age cathode current is measured during frame

blanking and is memorized on an internal capaci-

tor. The Cut-off loop can be frozen via the bus. To

prevent cut-off lines from being visible in 16:9

mode, cut-off pulses are not inserted when the cut-

off loop is frozen.

3.4 VIDEO CIRCUIT

3.4.1 RGB Inputs

The RGB (OSD) input has priority over the exter-

nal RGB input. The RGB (EXT) source is matrixed

into YUV signals for color and contrast adjust-

ments. The brightness is adjusted according to the

internal and external RGB and OSD RGB signals.

The Contrast Control regulates both external and

internal RGB signals and has a maximum attenua-

tion of -24 dB. It also regulates the OSD RGB sig-

nal and its maximum attenuation is limited to

-12 dB. The Contrast Control for RGB (OSD) input

can be disabled via the bus. The brightness of the

RGB (OSD) input varies according to the main

brightness level.

3.4.6 Warm-up Detector

At power on, the cut-off loop is not active and high

DC levels are inserted during "cut-off" lines. The

Cut-off loop will be active when the cathode cur-

rent reaches the warm-up detection threshold.

This causes the picture to be displayed from a

dark screen. The RGB outputs are blanked until

cut-off current is close to the reference voltage.

The RGB (EXT) insertion signal can be disabled or

forced via the bus. A fast blanking detector on the

external fast blanking input is able to detect the

Fast Blanking pulse occurrence at each frame and

then memorizes it until the end of the next frame.

RGB Insertion is controlled either by an external

signal on the FBEXT pin or via the I²C bus. The

Fast Blanking detection status is sent to the I²C

bus read register.

The manual cut-off mode can be selected via the

I²C bus. In this mode, the I_CATHinput pin is inac-

tive and cut-off pulses are not inserted. The RGB

black levels are independently controlled by three

I²C bus registers (8-bit resolution). The black level

of each RGB output can be adjusted within a

range of 2.5 V (typ.).

3.4.2 YCrCb Mode

3.4.7 Beam Current Limiter DC Voltage Input

External YCrCb signals can be applied to RGB

(EXT) inputs. Two input modes are possible:

The Beam Current Limiter (BCL) will first decrease

the contrast and then the brightness when the

contrast attenuation reaches -5 dB.

– The Sync signal is applied to CVBS input, the Y

signal is applied to GEXT, the Cr signal is applied

to REXT and the Cb signal is applied to BEXT.

3.4.8 Drive (RGB gain) and DC Adjustment

The red, green, blue channel gain for white point

adjustment takes place via the bus. The red and

– The Y signal is applied to CVBS input, the Cr sig-

nal is applied to REXT and the Cb signal is ap-

23/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

green DC levels for black point adjustment takes

place via the bus.

The APR function can be enabled or disabled via

the I²C bus.

3.4.9 Bus-controlled Contrast & Saturation

APR ON when register 10 hex d0 = 1 and register

07 hex d6 = 0.

The Contrast Control regulates internal RGB, ex-

ternal RGB and OSD RGB inputs. The maximum

attenuation on internal and external RGB inputs is

-24 dB and is limited to -12 dB for OSD RGB in-

puts. The bus-controlled saturation range is 50 dB.

3.4.16 RGB Peak Limitation

The APR function can be switched into an RGB

Peak Limitation function via the I²C bus: register

07 hex, data d6 = 1 and register 10 hex d0 = 1.

3.4.10 Bus-controlled Brightness & Sharpness

For this purpose, the APR threshold, tracked with

the contrast for the APR function, is changed in a

fixed threshold that is independent of the contrast.

In this case, the APR threshold I²C control should

be set to its maximum value.

The total brightness range is 60ꢀ of the black-to-

white amplitude at maximum contrast. The bright-

ness control regulates all RGB sources (internal,

external and OSD). Bus-controlled Sharpness

(peaking) is provided in PAL/SECAM/NTSC

standards.

3.5 CHROMA CIRCUIT

3.4.11 Bus-controlled Coring on Sharpness

3.5.1 PAL/SECAM/NTSC Decoders

When the Coring-on-sharpness function is

switched ON, the peaking function is not active on

low amplitude signals (below 10 IRE).

SVHS Chroma input; bus-controlled SVHS mode.

– 30 dB Automatic Color Control (ACC) range.

The ACC function is an automatic gain control of

the color amplifier.

3.4.12 Black Stretch

The Black Stretch circuit can be disabled via the

bus. Two modes are provided, one to be used

when the video signal is transmitted with a set-up

(7.5IRE set-up in NTSC), the other to be used

when the video signal is transmitted without a set-

up (PAL/SECAM).

– Integrated chroma base band delay line and ON/

OFF bus control.

– Automatic standard identification, with possibility

of forcing the standard via the bus.

– 3-crystal application capability for the South

American market:

3.4.13 Bus-controlled Blue Screen

The first crystal on Pin XTAL1 (3.5X MHz only),

the second crystal on Pin XTAL2 (3.5X MHz on-

ly), and the third crystal on Pin XTAL3/BTUN

(3.5X MHz only, used for PAL/NTSC application

only).

The bus-controlled Blue Screen feature is used to

insert a blue background on the screen when no

video is available. The RGB OSD can be dis-

played when the blue screen is active.

3.4.14 White Insertion

3.5.2 PAL/NTSC Decoder

This function is used to force a full white screen at

RGB output via the I²C bus or during Soft mode at

Powerdown.

ACC carried out by peak detector on synchronous

demodulation of the burst.

Fully-integrated killer function.

3.4.15 Automatic RGB Peak Regulation (APR)

VCO using two standard crystals: 4.43 MHz and

3.58 MHz. One crystal is internally selected de-

pending on the standard selection. A third crystal

can be used in PAL/NTSC applications only.

The APR function is used to take advantage of the

total RGB output range. APR circuits detect the

peak level of the RGB outputs (before OSD inser-

tion) and regulate the RGB gain (contrast) so that

signals above the APR threshold are limited. For

example, at maximum drive and contrast levels

with the APR function switched OFF, the 100 IRE

input signal gives 3 V(B/W) to the RGB outputs.

With APR ON and the APR threshold at 70 IRE,

the 70 IRE input signal gives 3 V (B/W) at RGB

outputs. For input signals above 70 IRE, the APR

will decrease the RGB gain so that amplitude at

the RGB output is always 3 V (B/W). The APR

gain control voltage is memorized on an external

capacitor where the gain decrease is very fast and

the gain increase is very slow (several frames).

VCO reference signal is available on Pin X1.

– 4.433619 MHz Crystal specification.

Mode of operation: serial resonance (without

load capacity),

Motional capacitance: C_M= 13fF 3fF,

Shunt capacitance: C_P< 7pF,

Serial resistance: R_S< 70Ω.

– 3.579545 MHz Crystal specification (NTSC M).

Mode of operation: serial resonance (without

load capacity),

Motional capacitance: C_M= 11fF 3fF,

24/86

STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

Shunt capacitance: C_P< 7 pF,

3.5.3 SECAM Decoder

Serial resistance: R_S< 70 Ω.

The following functions are fully-integrated: Killer,

PLL demodulator and De-emphasis functions.

– 3.575611 MHz XTAL specification (PAL M).

Mode of operation: serial resonance (without

load capacity),

Motional capacitance: C_M= 12fF 2fF,

Shunt capacitance: C_P< 7pF,

Serial resistance: R_S< 70Ω.

3.5.4 Chroma Standard Identification

R-Y and B-Y outputs are blanked during Color

Search mode. The color is displayed only when

the chroma standard has been identified.

3.5.4.1 Sequential Identification

– 3.582056 MHz XTAL specification (PAL N).

Mode of operation: serial resonance (without

load capacity),

Motional capacitance: C_M= 12fF 2fF,

Shunt capacitance: C_P< 7pF,

Serial resistance: R_S< 70Ω.

Three identification sequences:

– XTAL1 (4.43 MHz) mode to identify either PAL or

NTSC.

– XTAL2 (3.58 MHz) mode to identify either PAL or

NTSC.

0° and 90° demodulation angles for PAL.

– SECAM mode (XTAL1 selection).

Bus-controlled demodulation angles (0, 90) or (0,

104) are available in NTSC mode.

In 3-crystal applications, the SECAM sequence is

replaced by XTAL3 selection to identify either PAL

or NTSC signals.

Bus-controlled Hue adjustment is available in

NTSC mode.

3.5.4.2 SECAM Identification

3.5.2.1 NTSC Automatic Flesh Control

SECAM mode is locked after two identified SE-

CAM sequences.

Two automatic flesh control characteristics are

available via the bus.The normal flesh control with

10° correction and a total action range of 60°

and the wide flesh control with 20° correction and

a total action range of 90°.

SECAM mode can be selected in 50 Hz mode on-

ly. PAL/NTSC has priority over SECAM standard.

25/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4 ELECTRICAL CHARACTERISTICS

4.1 ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

V

_8V

_5V

8 V Supply Voltage

5 V Supply Voltage

10

V

CC

7

2

CC

V

Capacitor 100 pF discharged via 1.5 kΩ serial resistance (Human Body Model)

kV

°C

ESD

T

Operating Temperature

Storage Temperature

0, +70

-55, +150

OPER

T

STG

4.2 THERMAL DATA

Refer to Section 10 for more information about TQFP64 cooling.

Typical

Value

Symbol

Parameter

Unit

R

Junction-ambient Thermal Resistance at ambient 25°C

Junction-case Thermal Resistance at ambient 25°C

SDIP56

TQFP64

40

50

10

°C/W

thJA

R

thJA

R

thJC

4.3 SUPPLY

(Supplies at Typical Values, T_amb= 25° C, I²C bus register at power-on reset value, automatic cut-off

mode, unless otherwise specified).

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

V

IF Circuit Supply Voltage

Bus & Digital Supply Voltage

Chroma, Scanning Supply Voltage

Video Supply Voltage

4.75

7.6

5

5.25

8.4

CCIF

V

CCD

V

8

V

CC1

CC2

7.6

8

8.4

V

I

V

Current Consumption

V

= 5 V. No-load at RGB outputs.

58

48

40

56

mA

CCIF

CCD

I

CC5F

I

Current Consumption

= 8 V. No-load at RGB outputs.

CCI

CC2

CCI

I

CC2

V

= V

= 8 V,

CC2

P

Total Power Dissipation

V = 5 V

1300

mW

D

CCIF = CC5V

No-load at RGB outputs.

26/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4 IF SECTION

Tamb = 25°C, V_CCIF= 5 V, V_CC2= 8V, IF input =10 mV_RMS(at sync level for negative modulation, or at

peak white level for positive modulation).

Video modulation DSB, D = 90ꢀ and f_SC= 33.4 MHz in B/G, D = 95ꢀ in L, f_PC= 38.9 MHz.

Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = ±27 kHz.

Volume Attenuation = 0 dB, AM carrier input: 10 mV_RMS, 54ꢀ modulated unless otherwise specified.

4.4.1 PIF Amplifier

Symbol

VINPIF

RINPIF

CINPIF

GR

Parameter

Input Sensitivity

Test Conditions

-1dB at Video Output (INTCVBSOUT)

PIF Inputs.

Min. Typ. Max.

Unit

µV

75

1.5

85

2

95

2.5

RMS

Differential Input Resistance

Differential Input Capacitance

Gain Control Range

kΩ

pF

dB

PIF Inputs.

2

65

VMax.

Maximum Input Signal

+1dB at Video Output (INTCVBSOUT) 0.12 0.15

V

RMS

4.4.2 PIFAGC Negative Modulation

Symbol

Parameter

Charging Current at AGCPIFCAP Pin

Test Conditions

Min. Typ. Max.

Unit

µA

I

450

675

900

C

Discharging Current at AGCPIFCAP

I

10

15

20

µA

D

I /I

Charging/Discharging Current Ratio

41

45

49

C

D

4.4.3 PIFAGC Positive Modulation

Symbol

Parameter

Charging Current at AGCPIFCAP Pin

Min. Typ. Max.

1.75 2.5 3.25

Unit

mA

I

C

Discharging Current at AGCPIFCAP

I

0.15 0.25 0.35

µA

D

L mode in case of missing VITS

pulses and no white in Video con-

tent

Additional Charging Current at

AGCPIFCAP Pin

I

2.8

20

4

5.2

40

µA

CP

Threshold for additional charging cur- Referred to nominal black level

THICP

160

30

mV

µA

rent

2.3 V at INTCVBSOUT Pin

PP

I

Additional Discharging Current

DP

Referred to nominal black level

2.3 V at INTCVBSOUT Pin

PP

Threshold for additional discharging

current

THIDP

-345

mV

4.4.4 Tuner AGC

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

IAGCT

Maximum Sinked Current

1.5

2

2.5

mA

Reg 03 (D7, D6)

00

01

10

11

50

95

170

270

SAGCT

Tuner AGC Slope (current)

µA/dB

mA

I

Maximum Tuner plus Sinked Current (See Note 1)

40

AGCP

Reg 03 (D5 to D0 = 10 0000)

Reg 03 (D5 to D0 = 00 0000)

Reg 03 (D5 to D0 = 11 1111)

12

2

80

Tuner AGC Starting Point (IF input

related signal)

AGCST

STT

mV

RMS

Variation of take over point with tem-

perature

0.03 0.07

dB/K

27/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Note 1: Additional sinked current for large increasing steps of input signal when:

- Voltage at PIFinput > Tuner AGC starting point adjustment given by the WR03(d5 to d0)

- Output Signal (IntCVBSout) saturated (VIntCBVSoutVwth) in positive modulation.

4.4.5 Synchronous Video Demodulator

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

DFPC

Vision Carrier Capture Range

2

MHz

Maximum VCO Frequency for PIF With external LC network at 50 MHz

f

50

MHz

VCO

regeneration

(see Note 2)

V

PIF Input Signal for PIF PLL locking

PIFVCO Temperature Coefficient

40

70

20

µV

RMS

ILOCK

TVCO

ppm/K

Note 2: This parameter is not tested during production, it is tested during the qualification phase.

4.4.6 Demodulated Video Output (INTCVBSOUT Pin)

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

Black-to-White Video amplitude:

reg 02 data = 10h

1.19 1.4

1.36 1.6

1.61

1.84

PIFOUT-Q Video Amplitude at INTCVBSOUT

(INTCVBSOUT =2 V

)

V

PP

PIFOUT-I

reg 02 data = 90h

(INTCVBSOUT =2.3 V

)

PP

Video amplitude bus register

Typ.: reg 02 data = 10 hex

BG/L

BG to L Ratio

5

8

ꢀ

DG

DP

Differential Gain

Differential Phase

3

1

5

ꢀ

deg

V

Residual Carrier Signal

Residual 2nd Harmonic

Video Output S/N Ratio

10

mV

PIF

RMS

V

R2IF

RMS

S/N

See Note 3

55

60

dB

reg 02 data = 90h

V

White Noise Threshold Voltage

White Noise Insertion Level

Black Noise Threshold Voltage

Black Noise Insertion Level

6.7

V

WTH

2.3 V at INTCVBSOUT Pin

PP

reg 02 data = 90h

V

3.7

1

WIL

2.3 V at INTCVBSOUT Pin

PP

reg 02 data = 90h

V

BTH

2.3 V at INTCVBSOUT Pin

PP

reg 02 data = 90h

V

2.6

8

BIL

2.3 V at INTCVBSOUT Pin

PP

BW

Video Bandwidth

6

10

5

MHz

ꢀ

LUMLIN

ROUT

Luminance Non Linearity

Internal Output Resistance

50

3

Ω

reg 02 data = 10hex

RLOAD

IVID

Output Load Resistance

2

7

kΩ

(INTCVBOUT = 2 V

)

PP

reg 02 data = 90hex

(INTCVBSOUT = 2.3 V

Video Output Source Current

10

13

mA

)

PP

DCOUT

DC Output Level

Top Sync Level

2

V

Inter Mod.

1.07 MHz Intermodulation

Intercarrier Mode

52

dB

Video signal Grey level (see Note 4)

BG standard

L standard

PSRR

NH

Power Supply Ripple Rejection

35

30

dB

Suppression of Video signals har-

monics

35

40

Note 3: S/N = 20 log [PIFOUT Black to White / V

(mV

) weighted CCIR 567.

RMS

NOISE

Note 4: Supply Voltage ripple rejection = 20log (V

/V

) measured at 100 Hz with V Max. = 100 mVpp ap-

SUPPLY OUTPUT

AC

plied to V

= 5 V.

CC IF

28/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4.7 SIF Amplifier

Symbol

VINSIF

GRSIF

Parameter

Test Conditions

- 3dB at AM/FMOUT Pin (see Note 5)

AM output amplitude,

Min. Typ. Max.

Unit

µV

SIF Input Sensitivity

55

40

RMS

FM subcarrier amplitude

Gain Control Range

- 3dB to +1dB at AM/FMOUT Pin

SIF Inputs (see Note 6)

SIF Inputs

60

dB

pF

kΩ

C

R

Differential Input Capacitance

Differential Input Resistance

1.5

2

2.5

INSIF

Note 5: L standard Sc/Pc = -10 dB, Nyquist Pc = -6 dB, SIF input -4 dB with PIF input = 84 µV, BG standard Sc/Pc = -

13 dB, Nyquist Pc = -6 dB, SIF input -7 dB with PIF input = 85 µV.

Note 6: This parameter is not tested during production. It is tested on the validation bench during the qualification phase.

4.4.8 SIF AGC (FM)

Symbol

Parameter

Charging Current

Discharging Current

Test Conditions

Min. Typ. Max.

Unit

mA

µA

I

2.4

C

D

100

4.4.9 SIF AGC (AM)

Symbol

Parameter

Test Conditions

Normal time constant

Fast time constant

Min. Typ. Max.

Unit

µA

I

Charging/Discharging Current

6

NORMAL

I

2.4

mA

FAST

4.4.10 FM Demodulator

Electrical parameter valid in both QSS and Intercarrier modes, unless otherwise specified.

Symbol

Parameter

Min. Broadcast Sound/Video Carri- Intercarrier mode: SAW filter K2955M

er Ratio at SNR 35 dB

FM Audio Output Amplitude at AM/ FM dev = 27 kHz BGDKI

Test Conditions

Min. Typ. Max.

Unit

SIFMin

-30

dB

VOAF

400

500

200

630 mV

RMS

FMOUT Pin

FM dev = 13.5 kHz MN

DFMX

_norm

THD < 10ꢀ, normal audio mode,

AF = 1 kHz

Maximum FM Deviation

kHz

QSS mode, Audio FM Wide mode

(reg 04h, d3d2 = 11),

AF = 1 kHz

DFMX

_w_qss

Maximum FM Deviation

400

THD_FM Total Harmonic Distortion

FM dev = 27 kHz BGDKI

0.3

55

1

ꢀ

Weighted according to CCIR468-4

Quasi-Peak

S/N

Audio S/N

dB

AMR

SVR

Amplitude Modulation Rejection

Supply Voltage Rejection

m = 30ꢀ, AF = 1 kHz

See Note 4

32

45

dB

Intercarrier mode: SAW filter K2955M

Black picture,

White picture,

S/N

S/N versus picture content, Inter-

52

50

52

dB

vsvideo carrier mode

250 kHz squarewave

4.4.11 De-emphasis

Symbol

Parameter

Test Conditions

B,G,D,K,I standards

M, N, standards

Min. Typ. Max.

Unit

µs

deemp-T1 De-emphasis Time Constant

deemp-T2 De-emphasis Time Constant

50

75

µs

29/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4.12 AM Demodulator

Symbol

Parameter

AM Audio Output Amplitude at AM/

FMOUT Pin

Test Conditions

54ꢀ modulation

Min. Typ. Max.

Unit

AFOUT

400

500

630 mV

RMS

AMlowco Low Cut-off Frequency

AMhighco High Cut-off Frequency

-3 dB compared AFout

54ꢀ modulation

40

2

Hz

kHz

ꢀ

30

AMthd

AMs/n

AMsvr

Total Harmonic Distortion

Weighted according to CCIR468-4

Quasi-Peak

Signal/Noise Ratio

55

20

dB

Supply Voltage Rejection

See Note 4

4.4.13 SIF Output (AM/FM or Sound Subcarriers Output)

Symbol

SIFout

SIFbw

Parameter

Output Level

Bandwidth

Test Conditions

Sound subcarriers

Min. Typ. Max.

Unit

150

mV

RMS

Sound subcarriers

7.5

4

MHz

V

SIF dcout DC Output Level

Fundamental wave (38.9 MHz) and

harmonics

SIFres

SIFcur

Residual Carrier

0.4

mV

RMS

AM or FM demod. output selected

Sound subcarriers output selected

0.5

1.5

Sink Output Current

mA

4.4.14 SAW Filter Switch Output (TQFP64 only)

Symbol

Parameter

Test Conditions

= 2 mA

Min. Typ Max.

Unit

V

SAW low Low Output Voltage

SAWcur Maximum allowed Current

SAW high High Output Voltage

I

0.4

SINK

2

mA

V

= 2 mA

4

SOURCE

4.4.15 External Audio Input

Symbol

Parameter

Input Resistance

Test Conditions

Min. Typ. Max.

Unit

kΩ

V

R

70

100

2.4

130

IN

V

DC Input Voltage

IDC

AFIN

maximum Audio Input Signal

2

V

RMS

4.4.16 Main Audio Output

(See Figure 17 on page 42 and Figure 18 on page 42)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Maximum Attenuation (Audio Out/

AM-FM Out)

AMax

Register 05hex, data = 7Fhex

78

dB

V

= 1 V

f = 1 kHz,

RMS,

Minimum Attenuation (Audio Out/

AM-FM Out)

IN

AMin

-1

0

1

Register 05hex, data = 00hex

ASTEP Step Resolution

reg 05, d7 = 0

0.7

dB

mV

V

DCSH

DC Output Shift

DC Output Level

From max. volume to min. volume

50

V

4

ODC

f = 1 kHz, f

Ext. Audio Input = 500 mV

=

27 kHz,

Audio Amplitude difference

between sources

M

AFDIFF

2

dB

RMS

R

Output Resistance

Output Bandwidth

110

0.1

Ω

MHz

ꢀ

OUT

BWO

1

V

= 1 V

f = 1 kHz

RMS,

THD_AM Total Harmonic Distortion

0.3

IN

30/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Measured at 0 dB attenuation,

Signal to Noise Ratio from Exter-

nal Input

Ext. Audio Input at 500 mV

S/N1

75

dB

RMS,

CCIR 468-4 Weighted Quasi Peak

Measured at 20 dB attenuation,

0 dB reference

Signal to Noise Ratio from Exter-

nal Input

S/N2

S/N3

55

52

60

55

dB

Ext. Audio Input at 500 mV

RMS

Signal to Noise Ratio from FM

Demod

Measured at 20 dB attenuation,

FM: 27 kHz (Standards BGDKI)

Measured at f = 100 Hz from

CC

Supply Voltage Rejection from

External Input

SVRV

XT

60

70

dB

V

= 5 V and V = 8 V

CC

Crosstalk

See Note 7

CCIR 468-4 Weighted Quasi Peak

Volume at minimum

50

100

60

120

NOISE Output Noise Level

AFIN Audio Input Level

µV

Volume at typical

Volume at maximum

V

Volume = -25 dB, THD < 1ꢀ

2

RMS

Note 7: Measured from any input to output at f = 10 kHz with RL = 10kΩ and Rg = 600Ω, Volume attenuation = 0dB.

4.4.17 AVL

Symbol

Parameter

AVL Gain Control Range

(7-bit Resolution)

Test Conditions

Min. Typ. Max.

Unit

dB

GAVL

20

-15

AVL

Maximum attenuation

dB

MAX

Measured at AUDIOOUT

Volume Control at maximum

Reg.AVL Regulation amplitude

0.55

V

RMS

4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS

4.5.1 Luminance & CVBS Inputs

Symbol

Parameter

Black Level Voltage

Test Conditions

Input selected on main CVBS output

Min. Typ. Max.

Unit

V

DC

3.3

IN1

V

CVBS or Y Input Voltage

Negative Clamping Current

Positive Clamping Current

1

1.41

35

7

V

PP

IN

-I

During SYNC pulse

20

27

4.5

µA

I

2.5

4.5.2 Combined Chrominance & SVHS Selection Input

Symbol

Parameter

Chrominance Input Voltage

Input Amplitude before Clipping

DC Voltage

Test Conditions

Min. Typ. Max.

Unit

V

Burst Amplitude, 100/75 Color Bar

0.3

0.6

PP

V

1

CLIP

PP

V

SVHS Mode

1.55

0.50

1.70

0.90

1.85

1.45

150

V

DC

V

SVHS Threshold Voltage

Output Current

TH

I

0V at CHR Pin

µA

LOW

4.5.3 CVBS1 Output (Pin 29 - SDIP56)

Symbol

Parameter

Dynamic Output Amplitude

Output Load Resistance

Test Conditions

Register 1Dhex, data = 07hex

Min.

Typ. Max.

Unit

V

1.5

V

PP

OUT

R

3

kΩ

LOAD

BW

CVBS Bandwidth

10

MHz

V

= 1 V

IN

PP

31/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

Register 1Dhex, data = 07hex

Up to 5 MHz

Crosstalk Deletion of non-selected signals

MGAIN Output Gain

50

dB

Register 1Dhex, data = 07hex

From any CVBS/Y inputs

-0.5

0

0.5

dB

V

Register 1Dhex, data = 07hex

Black Level

DCMAIN DC Output Voltage

4.2

4.5.4 CVBS2 Output

Symbol

Parameter

Dynamic Output Amplitude

Internal Output Resistance

CVBS Bandwidth

Test Conditions

Min.

Typ.

Max.

Unit

V

3

OUT2

PP

R

10

Ω

OUT2

V

1 V

PP

BW2

10

50

MHz

dB

V

IN =

Crosstalk2 Deletion of non-selected signals

SWI2gain Output Gain

Up to 5 MHz

From any CVBS/Y inputs

Black Level

5.5

6

6.5

SWI2DC DC Output Voltage

3.8

R

Output Load Resistance

1.5

kΩ

LOAD2

4.5.5 OSD RGB Inputs

Symbol

Parameter

Test Conditions

Max. Contrast

Min.

Typ.

4

Max.

Unit

V

Clamp Level

CLAMP

V

RGB Input Voltage

RGB Gain

0.7

4.28

1

V

RGB

PP

-

CRGB

Max. Contrast, Max. Drive

Difference of black level of internal

Dblack

and external signals at the RGB out- OSD signal versus internal signal

puts

50

mV

I

Clamping Current

60

50

100

140

µA

dB

RGB

Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz

4.5.6 FBOSD/HC Inputs

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Half Contrast disable

Register 08hex d6 = 0

V

OSD Insertion Threshold Voltage

0.5

0.7

0.85

V

THFB1A

Half Contrast enable

Register 08hex d6 = 1

V

OSD Insertion Threshold Voltage

Half Contrast Threshold Voltage

1.5

0.5

3.2

1.9

0.7

2.3

V

THFB1B

Half Contrast enable

Register 08hex d6 = 1

V

0.85

TH-HC

Oversize Blanking active

Register 08hex, d7 = 1

V

Blanking Threshold Voltage,

Insertion Switching Delay

4

4.8

40

V

THFB2

t

20

ns

SWI1

From FBOSD = 4V to starting of

blanking falling edge at RGB out-

puts

t

Blanking Switching Delay

Input current

100

ns

SWI2

I

0V at Pin FBOSD

10

µA

FB

32/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.5.7 External RGB/YCrCb Inputs

Symbol

Parameter

Test Conditions

Max. Contrast

Min.

Typ.

3.5

Max.

Unit

V

Clamp Level

CLAMP

V

RGB Input Voltage

0.7

1

V

RGB

PP

100ꢀ color bar

register 0Ahex d7d6 = 11

V

YCrCb Input Voltage

V

Y

Cr

Cb

1

0.7

YCrCb

PP

-

CRGB RGB Gain

Difference of black level of internal

Max. Contrast, Max. Drive

4.28

Dblack and external signals at the RGB out- OSD signal versus internal signal

puts

50

mV

I

Clamping Current

60

50

100

140

µA

dB

RGB

Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz

4.5.8 External Fast Blanking Input

(See Note 8)

Symbol

Parameter

Insertion Threshold Voltage

Insertion Switching Delay

Input Current

Test Conditions

Min.

0.5

Typ.

0.7

20

Max.

0.85

40

Unit

V

THFB

t

ns

µA

V

SWI

I

0V at Pin FBEXT

10

FB

V

Max. voltage allowed at FBEXT input

5

MAX

Note 8: The FBEXT input must be connected to ground if not used in the application.

4.6 LUMA PART

4.6.1 Y Delay Line

Symbol

Parameter

Delay Time PAL/NTSC

Delay Time SECAM

Delay Time PAL/NTSC

Delay Time SECAM

Test Conditions

Min.

Typ. Max.

Unit

ns

t

SVHS mode, Register 1F d3 = 0

CVBS mode, Register 1F d3 = 0

520

640

560

710

D1

D2

D3

D4

ns

lumDel1 = reg 1F d3 = 0, standard

luma delay

lumDel2 = reg 1F d3 = 1, shifted luma

delay

t

Delay Time (lumDel1 - lumDel2)

140

30

ns

SHIFT

Groupdel Group Delay up to 3.5MHz

Trap-off

4.6.2 Peaking Circuit

Electrical parameter measured with color identified

Symbol

fPEAK

Parameter

Center Frequency

Test Conditions

Trap-off, coring ON

Min.

2.5

Typ. Max.

Unit

MHz

3

3.5

Gain Variation from Min. to Max.

peaking

G

At f , coring ON

9

dB

ꢀ

PEAK

Amplitude Variation compared to

B/W amplitude

Overshoot

2T pulse, Max. peaking, coring ON

55

33/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

Amplitude Variation compared to

B/W amplitude

Pre-shoot

2T pulse, Max. peaking, coring ON

40

ꢀ

Amplitude Variation compared to

B/W amplitude

Aft-shoot

Coring

2T pulse, Max. peaking, coring ON

Coring ON

40

10

ꢀ

Coring Range compared to B/W

4.6.3 Black Stretch Control (Pin BS)

See Figure 12

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

Black Stretch Threshold referred to

B/W amplitude

BSth1

Y/CVBS inputs: 0.7V B/W, No set-up

50

ꢀ

Maximum expansion referred to

B/W amplitude

BSMax.

Y/CVBS inputs: 0.7V B/W, No set-up

-15

ꢀ

BSVMax. Black Stretch Control Voltage

BSVMin. Black Stretch Control Voltage

I100IRE Discharging current

Max. black stretch

No black stretch

Y = 100IRE

2.6

3.3

8

V

µA

I0IRE

Charging Current

Y = 0IRE

35

4.6.4 Y Output

Symbol

Yout-DC Black level

Parameter

Test Conditions

Min.

Typ. Max.

3.7

Unit

VBW

V

Yout-amp Black to White Amplitude

0.7

0.99

Peaking nominal

SVHS mode/Trap-off

CVBS, PAL/NTSC 4.43MHz

CVBS, SECAM

8

Yout-BW Luma Path Bandwidth

2.7

2.5

3.5

3.1

3.0

MHz

dB

CVBS, PAL/NTSC 3.58MHz

Bandwidth 5MHz,

Peaking Min.,coring ON

Yout S/N Signal to Noise Ratio (V /V

)

50

PP RMS

4.7 FILTERS

4.7.1 Y Trap Filter

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

f

Notch Frequency

PAL/NTSC

f

MHz

TRAP-PN

OSC

4.2

4.5

SECAM fnb

SECAM fnr

f

Notch Frequencies

MHz

ꢀ

TRAP-S

f

Notch Frequency Accuracy

Trap Quality Factor

3.5

TRAP-ACC

Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking

Min.

Q

1.5

20

-

TRAP

CrejPN

CrejS

Color Subcarrier Rejection

PAL/NTSC

20

10

dB

From 4.1 to 4.6 MHz

At 3.9 MHz

Color Rejection in SECAM Mode

4.7.2 Chrominance Bandpass

Symbol

Parameter

Center Frequency

Bandpass Quality Factor

Test Conditions

Register 12h, d3-d0 = 0000

Min.

-5ꢀ

2.8

Typ. Max.

Unit

MHz

-

f

+5ꢀ

4.2

BP

OSC

3.5

Q

BP

34/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.7.3 Bell Filter

Symbol

Parameter

Center Frequency

Bell Quality Factor

Test Conditions

Register 11h, d4-d0 = 00000

Min.

4.27

14

Typ. Max.

Unit

MHz

-

f

4.29

16

4.31

18

BELL

Q

BP

4.8 CHROMA PART

4.8.1 ACC

Symbol

Parameter

Test Conditions

Change of burst overall ACC control

range < 2dB

Min.

Typ.

26

Max.

Unit

G

ACC Control Range

dB

ACC

Min.

V

Minimum Burst Signal Amplitude

Within the ACC control range

0.03

V

PP

4.8.2 ACC Overload

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

dB

V

Chroma regulation Threshold

ACC overload ON, PAL/NTSC

3

TH

4.8.3 Killer

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Burst amplitude on selected CVBS

input

mV

Ident-kill Color on Threshold of ident. circuit

Kill-Hyst Color off Killer Hysteresis

5

2

PP

Strong signal condition, S/N > 40 dB

4.8.4 Chroma PLL

Symbol

CaptR

HoldR

Parameter

Catching Range

Holding Range

Test Conditions

With recommended crystal and rec-

ommended CLPF filter value.

Min. Typ. Max. Unit

300

> or = to capture range

4.8.5 PLL Loop Filter (PAL/NTSC)

Symbol

Parameter

Maximum Control Current

Leakage Current

Test Conditions

Color search mode (colour not ident.)

Color identified

Min. Typ. Max. Unit

1000

350

I

µA

C

I

5

µA

L

Frange-W Auto Flesh Control

Register 14(HEX), d6 = 1, d7 = 1

90

Deg

4.8.6 Hue Control

Symbol

Parameter

Hue Control Range

Test Conditions

Min. Typ. Max. Unit

35 45 55 Deg

R

HUE

4.8.7 Automatic Flesh Control

Symbol

FleshNom. Nominal Flesh Tint Phase

Phase Correction when Auto Flesh

Parameter

Test Conditions

Min. Typ. Max. Unit

118

Deg

Fcorr0

At FleshNom

0

ON

FMax.-N Maximum Phase Correction

Register 14(HEX), d6 = 1, d7 = 0

10

30

60

Chroma Input Phase at Max. cor-

Flesh-N

rection

Frange-N Auto Flesh Control Range

35/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

FMax.-W Maximum Phase Correction

Register 14(HEX), d6 = 1, d7 = 1

20

45

90

Deg

Chroma Input Phase at Max. cor-

Flesh-W

rection

Register 14(HEX), d6 = 1, d7 = 1

Frange-W Auto Flesh Control

4.8.8 Color Demodulators

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

DoffsetP Demodulator Offset

DoffsetS Demodulator Offset

PAL/NTSC mode, 75ꢀ color bar

SECAM mode, 75ꢀ color bar

2

ꢀ

PhaseErr Phase Error in demodulated signal PAL/NTSC mode, 90ꢀ matrix

5

Deg

PAL mode, 75ꢀ color bar green-

TransPal Chroma Transient Time

700

ns

magenta transient

SECAM mode, 75ꢀ color bar green-

transSEC Chroma Transient Time

900

104

ns

magenta transient

Naxis

R-Y Demodulation Axis

NTSC mode, 104° matrix

Deg

4.8.9 Chroma Delay Line

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Cdelay

Delay of delayed signals

Relative to non delayed signal

63.9

64

64.1

µs

Difference of transient times be-

tween delayed and non delayed

signals

SECAM mode. t -t

RN RN+1

Ctrans

Dgain

t

: rise time line N (direct)

150

ns

RN

t

: rise time line N +1 (delayed)

RN+1

SECAM mode. Gn+1/Gn

Gn: direct channel gain

Gn+1: delayed channel gain

Differential Gain of delayed signals

versus direct signals

-0.5

0

0.5

dB

4.8.10 Chroma Reference Output

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Chroma VCO Reference Signal

Amplitude

V

CHR-amp

0.4

0.5

PP

I

Sink Current

mA

SCHR

4.9 SCANNING PART

4.9.1 Synchronization Separator

Symbol

Parameter

Synchronization Pulse Amplitude

Test Conditions

Min. Typ. Max. Unit

50 300 450 mV

V

SYNC

4.9.2 Horizontal Oscillator

Symbol

Parameter

Horizontal Frequency

Test Conditions

50 Hz mode

Min. Typ. Max. Unit

f

15.6

15.7

kHz

H50

H60

60 Hz mode

Low Frequency

High Frequency

14.7 15.0 15.3

f

Frequency Control Range

kHz

RANGE

15.9 16.3

—

f

Free Frequency when PLL1 opened

15.3 15.6 15.9

FREE

36/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.9.3 First Loop Filter

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

I

Long Time Constant Output Current

Short Time Constant Output Current

Very Long Time Constant

0.10 0.13 0.16

0.30 0.40 0.56

0.03 0.05 0.07

mA

LOW

I

HIGH

I

VLOW

4.9.4 Second Loop Filter

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

Control Range from start of horizon-

tal output to flyback pulse

0 to

12

CrangeP2

Centered horizontal position

µs

H

Horizontal Position Control Range

Horizontal Drift with temperature

5

5.25

µs

ns

SHIFT

H

From 0°C to 70°C (see Note 9)

200

DRIFT

Note 9: This parameter is not tested during production, it is tested during the qualification phase.

4.9.5 Line Flyback Input/Super-Sandcastle Output

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

V

Output Voltage during Burst Key

4.8

2.6

1.8

5.3

5.8

3.4

2.2

V

BURST

Clamped Input Voltage during Line

Flyback

V

3

V

LINE

V

Output Voltage during Vertical pulse

Burst key Pulse Width

2

V

VERT

Twbg

Tdbg

Tvert

3.8

µs

Delay of start of burst key to start of

sync.

5.2

10.5

83

µs

lines

ꢀ

Vertical Pulse Width

PLL2 and Line Blanking Threshold

Voltage referred to line level Vline

V

Vthline/Vline

THLINE

I

Input Current

0.1

1

mA

4.9.6 Horizontal Output

Symbol

Parameter

Output Pulse Width

Low Output Voltage

Test Conditions

= 5mA

Min. Typ. Max. Unit

t

26

28

30

0.4

6.5

0.7

10

µs

V

W

V

I

SINK

LOW

CCSTART

V

Start Level

5.5

0.5

6

V

CC

V

Stop Level Hysteresis

V

- V

CCSTOP

0.6

V

CCSTOP

CC

CCSTART

I

Maximum allowed Output Current

Maximum allowed Output Voltage

Output Pulse Duty Cycle in soft-start

mA

V

Max.

V

10

Max.

Tss

75

ꢀ

mode (t

/(t

+t

)

HIGH HIGH LOW

4.9.7 Vertical Output

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

t

Output Pulse Width

10.5

Lines

W

Reg 19, d0 = 1

Reg 19, d0 = 0

1.5

2

0.1

2.5

0.5

V

Low Output Voltage

V

LOW

f

Looking Range

248

352

Lines

LOCK

f

Free Frequency (no Video signal) 50-Hz Forced or 50-Hz Auto mode

Free Frequency (no Video signal) 60-Hz Forced or 60-Hz Auto mode

314

264

FREE-50

FREE-60

37/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

High Level Range Vertical Position Min. position control

3.5

6.0

4

6.5

4.5

7.0

V

HIGH

Control

Max. position control

I

Output Sinking Current

Output Source Current

0.7

1.0

mA

SINK

I

SOURCE

4.9.8 Vertical Amplitude Control

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

Min. amplitude voltage

Max. amplitude voltage

1.2

5.5

1.5

6.0

1.7

6.5

V

Output Voltage Range

V

AMP

4.9.9 Crystal Detection

Symbol

Parameter

Load resistance at pin VAMP

Test Conditions

4.43 MHz crystal on pin XTAL1

3.58 MHz crystal on pin XTAL1

Min. Typ. Max.

80

Unit

kΩ

R

4.43

3.58

10

4.10 RGB CONTROL PART

4.10.1 Y Input

Symbol

YINdc

Parameter

Test Conditions

Min.

Typ. Max.

3.7

Unit

V

Black Level

Yin-B/W Black to White Amplitude

Yin-cur Input Current

0.7

1

V

µA

4.10.2 U & V Inputs

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

UVin-dc Black Level

3.7

V

Uin-amp B-Y Amplitude

Vin-amp R-Y Amplitude

UVin-cur Input Current

75ꢀ color bar PAL/SECAM

1.33

1.05

2.0

1

V

PP

µA

4.10.3 Contrast Control

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

Yctr

Contrast Range on Y signal

21

24

27

dB

Contrast Range on OSD RGB sig-

nal

OSDctr

10

12

14

dB

4.10.4 Saturation Control

Symbol

SAT

Parameter

Test Conditions

75ꢀ color bar PAL/SECAM,

0 dB for data 20 in reg 08

Min. Typ. Max.

Unit

Maximum Saturation Control

Minimum Saturation Control

6

9

12

dB

Max.

75ꢀ color bar PAL/SECAM,

0 dB for data 20 in reg 08

SAT

-40

dB

Min.

38/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.10.5 Brightness Control

Symbol

Parameter

Brightness Control Range referred

to B/W amplitude on RGB outputs

Test Conditions

At Max. Contrast, APR OFF

BS mode, Max. Contrast.

Min. Typ. Max.

Unit

Bright

50

60

70

ꢀ

Nominal Black Level at RGB out-

puts. Difference between black lev- (V

- V )/V_BW

BLACK

CO

Blacknom

-12

ꢀ

el V

and inserted cut-off pulse V_BW: black to white amplitude at

BLACK

level V : V

- V

RGB outputs.

CO

BLACK

CO

4.10.6 RGB Matrix

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

PAL/SECAM matrix measured on R,

G outputs PAL DEMpattern

G/R

G/B

(G-Y)/(R-Y)

(G-Y)/(B-Y)

-0.40 -0.51 -0.62

-

PAL/SECAM matrix measured on G,

B outputs PAL DEMpattern

-0.15 -0.19 -0.23

0.9

-

NTSC mode, 104° matrix input signal:

U = V measured on R, B outputs

R/Bntsc (R-Y)/(B-Y)

G/Rntsc (G-Y)/(R-Y)

G/Bntsc (G-Y)/(B-Y)

NTSC mode, 104° matrix

-0.29

-0.22

-

4.10.7 Drive Adjustment (White Point Adjustment)

Symbol

Parameter

Test Conditions

On RGB outputs

Min. Typ. Max.

Unit

dB

WPrange White Point Adjustment Range

6

4.10.8 Cut-Off Adjustment (Black Point Adjustment)

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

On Red and green outputs at Typ.

drive, no load

COadjust Cut-off Adjustment Range

420

mV

COloop Cut-off Loop Range

COlevel Inserted Cut-off Level

On RGB outputs

2

2.5

V

1.5

3.5

4.10.9 Cathode Current Input

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

Leakage Current Reference Volt-

age

V

3.75

250

4.3

4

V

LEAK

Cut-off Current Reference Voltage

referred to leakage current refer-

V

210

290

mV

COFF

ence V

LEAK

Start Beam Current Detection Ref-

erence Voltage

V

4.1

V

SBEAM

I

Source Current

150

µA

SOURCE

4.10.10 Beam Current Limiter Input

See Figure 14 on page 42 and Figure 15 on page 42.

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

V

Contrast Attenuation Starting

Brightness Attenuation Starting

Contrast Attenuation Ending

5.75

5.5

TH1

TH2

TH3

V

5.25

14

V

CTRbcl Contrast Attenuation at V

dB

V

TH3

V

Brightness Attenuation Ending

4.5

TH4

39/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min. Typ. Max.

100

6.5

Unit

ꢀ

V

BRIGbcl Brightness Attenuation at V

TH4

Clp

High Clamping Voltage

SAF-thr Safety Threshold

0.8

3

1

1.2

V

SAF-hold Supply Hold Voltage

Referred to V

V

CC1

4.10.11 Automatic RGB Peak Regulation (APR) / RGB Peak Limitation

See Figure 16 on page 42.

Symbol

Parameter

Test Conditions

WR10 d0 = 1

Min. Typ. Max.

Unit

Contrast Max., drive Max., no load

APR threshold Min. (50IRE)

APR threshold 70IRE

APR threshold Max. (100IRE) (see

Note 10)

Maximum Output Level on RGB

outputs when APR/RGB Peak Limi-

tation ON

APR/RGB

Peak

2.14

3.0

4.28

V

i

Discharging Current

Charging Current

5.5

µA

APR-D

APR-C

5.25

mA

APR ON = WR10 d0 = 1

RGB output amplitude with APR ON

versus RGB output amplitude with

APR OFF

G

APR max gain

APR min gain

+2.5

-3.0

dB

APRMAX

APR ON = WR10 d0 = 1

RGB output amplitude with APR ON

versus RGB output amplitude with

APR OFF

G

APRMIN

Note 10: At maximum contrast, APR and RGB peak limitation have the same characteristics. The APR regulation level

is tracked on contrast. The RGB peak limitation level is not tracked on contrast.

40/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.10.12 RGB Outputs

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

0.7V B/W on Y/CVBS inputs, Contrast

Max., Drive Max., Saturation and

bright Nom., APR OFF, no load

VB/W

Output Signal Amplitude B/W

2.8

V

75/100 color bar, no Y nom. settings,

APR OFF, no load

V

Output Signal Amplitude

1.5

V

PP

BLUE

I

Output Sinking Current

Output Source Current

Internal Output Resistance

Blanking Level

1.2

1.5

mA

Ω

SINK

I

1.8

0.4

SOURCE

R

150

0.2

6.8

OUT

V

No load

V

BLANK

V

High Clipping Level

V

CLIP

Black-ctr Variation of black level with contrast

30

50

mV

Variation of black level with satura-

Black-sat

tion

mV

20dB contrast variation

Overall brightness range

Relative Variation in black level be-

Rel-Black

20

2

mV

mV/°C

dB

tween the three channels

5ꢀ V

CC1

Black-T Black Level Thermal Drift

1

At typical saturation

From Max. Contrast (0 dB) to -10 dB

Contrast

Tracking between Luminance and

Chrominance signals

Track

YUV inputs to RGB outputs

Bandwidth of output signals at -3dB OSD RGB inputs to RGB outputs

EXT. RGB inputs to RGB outputs

6

5

8

6

Bwidth

MHz

Figure 13. Auto Flesh Characteristics

Phase Correction (Deg)

20

Figure 12. Black Stretch Static Characteristics

(IRE)

Wide Response

Y

(ꢀ)

OUT

10

100

0

Narrow

Response

50

-10

Chroma Input

Phase (Deg)

-20

0

30

60 90 120 150 180 210 240

0

Y

(ꢀ)

IN

-15

50

100

41/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Figure 14. Beam Current Limiter

Characteristics (Contrast)

Figure 15. Beam Current Limiter

Characteristics (Brightness)

Contrast (dB)

0

Brightness (ꢀ)

100

0dB Max.

-6dB

-6

-10dB

50

-12

-18dB

-18

-24

V

(V)

BCL

V

(V)

BCL

0

4.5

5

5.5

6

6.5

4.5

5

5.5

6

6.5

Figure 16. Automatic RGB Peak Regulation (APR) / RGB Peak Limitation Characteristics

Output Level

RGB Peak Limitation Curve or

APR Threshold max. (100 IRE)

and contrast max.

APR Threshold min. (50 IRE)

and contrast max.

APR Threshold max. (100 IRE)

and contrast min.

APR Threshold min. (50 IRE)

and contrast min.

Input Level (IRE)

0

50

100

150

Figure 17. Linear Volume Control Curve

(7 bits, reg. 05 d6-d0, reg. 05 d7 = 0)

Figure 18. Non-Linear Volume Control Curve

(6 bits, reg. 05 d6-d1, reg. 05 d7 = 1)

0

-20

-40

-60

-80

-20

-

40

60

-

-80

0

10 20 30 40

50 60 70

0

50

100

ma

150

Co

de

(d

ec

i

l

)

Code (decimal)

42/86

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.11 I²C BUS CHARACTERISTICS

4.11.1 SCL

Symbol

Parameter

Low Level Input Voltage

High Level Input Voltage

Input Leakage Current

Clock Frequency

Test Conditions

Min. Typ.

-0.5

3

Max.

1.5

Unit

V

IL

IH

LI

V

+0.5

V

CC

I

V

= 0 to V

-10

0

10

µA

kHz

ns

IN

CC

f

100

1.000

300

SCL

t

Input Rise Time

1.5V to 3V

R

t

Input Fall Time

ns

F

C

Input Capacitance

10

pF

I

4.11.2 SDA

Symbol

Parameter

Low Level input Voltage

High Level input Voltage

Input Leakage Current

Input Capacitance

Test Conditions

Min. Typ.

-0.5

3

Max.

1.5

Unit

V

IL

IH

LI

V

+0.5

V

CC

I

V

= 0 to V

-10

10

µA

pF

ns

V

IN

CC

C

10

1.000

300

0.4

I

t

Input Rise Time

1.5V to 3V

R

t

Input Fall Time

F

V

Low Level Output Voltage

Output Fall Time

I

= 3mA

OL

t

3V to 1.5V

250

400

10

ns

pF

F

C

Load Capacitance

L

C

Input Capacitance

I

4.11.3 I²C Timing

Symbol

Parameter

Test Conditions

Min. Typ. Max.

4.7

4

Unit

µs

t

Clock Low period

LOW

t

Clock High period

Data Set-up Time

Data Hold Time

µs

HIGH

t

250

ns

SU,DAT

HD,DAT

t

0

340

ns

Set-up Time from Clock High to

Stop

t

4

µs

SU,STO

t

Start Set-up Time following a Stop

Start Hold Time

4.7

4

µs

BUF

t

HD,STA

Start Set-up Time following Clock

Low to High Transition

t

4.7

µs

SU,STA

Figure 19. I²C Bus Timing

SDA

t

BUF

t

SU,DAT

LOW

SCL

t

SU,STO

HD,STA

R

HD,DAT HIGH

F

t

SDA

SU,STA

43/86

STV224X, STV228X, STV223X - I²C BUS SPECIFICATIONS

5 I²C BUS SPECIFICATIONS

Data transfers follow the usual I²C format: after the start condition (S), a 7-bit slave address is sent, fol-

lowed by an eighth bit which is a data direction bit (W). An 8-bit sub-address is sent to select a register, fol-

lowed by an 8-bit data word to be included in the register.

The IC’s I²C bus decoder permits the automatic incrementation mode in write mode.

The circuit operates up to clock frequencies of 400 kHz.

String Format

Write only mode (S = start condition, P = stop condition, A = acknowledge)

S

SLAVE ADDRESS

0

A

SUB-ADDRESS

A

DATA

A

P

Read only mode

S

SLAVE ADDRESS

1

A

DATA 0

A

DATA 1

A

DATA 2

DATA 3

Slave Address

Address

A7

1

A6

0

A5

0

A4

0

A3

1

A2

0

A1

A0

X

Value

1

Write Address:

Read Address:

10001010

10001011

44/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

6 I²C BUS SELECTION

6.1 SUMMARY INPUT SIGNALS (WRITE MODE)

“Not-to-be-used” data must be set to “0”.

Reg.

Addr.

(Hex)

Data D7

Data D6

Data D5

Data D4

Data D3

Data D2

Data D1

Data D0

Not to

be used

00

PIFVCO Free Running Fine Adjustment

NEG/POS

PIF

Over-modu-

lation

AFC

Defeat

01

L/L’ Mode

PIFVCO Free Running Coarse Adjustment

Modulation

CVBS Out- Overmodu-

put lation Reset

Not to be

used

02

03

INTCVBS Output Amplitude Adjustment

Tuner AGC gain

Tuner AGC Starting Point Adjustment

FM Deviation and FM

FM/AM

Output

Selection

(Note 1)

Intercarrier QSSandAM

FM Demod.

Defeat

Main Audio Output

selection (int./ext.)

04

05

Filter ON/

OFF

demod

defeat

De-emphasis, Audio FM

Wide mode (Note 1)

Volume

Control

Curve

Volume Control

Not to be

used

(SDIP56)

AGC SIF

Time Con-

stant

PIF VCO

compensa-

Not to be

used

QSS/

Inter-carrier

Sound

Standard Selection

06

07

CVBS Mute

SAW Filter

Switch

tion

(TQFP64)

RGB Peak

Blue Screen Limitation

(Note 2)

Contrast

Oversize

Blanking

Half

Contrast

08

09

0A

0B

Saturation

Brightness

RGB

Blanking

CO Blanking

RGBext/YCrCb Insertion

(Note 2)

Red Drive Adjustment

Green Drive Adjustment

NTSC Set-

up

Black

Stretch

LSB RED

Cut-off

Counter

0C

0D

0E

CO Freeze

Blue Drive Adjustment

Red Cut-off Adjustment

Green Cut-off Adjustment

Manual Cut-off Selection

LSBGREEN

Not to be

Cut-off

Counter

used

Chroma

Trap ON/

OFF

White inser-

tion ON/OFF ON/OFF

CVBS2

Coring

ON/OFF

0F

10

Peaking

(Note 1)

White

RGBosd

Contrast

Selection

CRT/LCD

Insertion

APR Threshold

APR on/off

Display

(Note 2)

45/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Reg.

Addr.

(Hex)

Data D7

Data D6

Data D5

Data D4

Data D3

Data D2

Data D1

Data D0

PAL/NTSC

Demod.

Gain

ACCO

ON/OFF

NTSC 104

Matrix

11

12

13

Bell Filter Shift

Chroma DL Chroma Out

ON/OFF

Not to be used

Bandpass Shift

ON/OFF

Crystal In-

put Pin Disa-

ble

Chroma Standard Selec-

tion

Not to be used

Crystal Selection

3rd Crystal

Flesh

ON/OFF

14

15

Flesh Char.

Safety Reset

Interlace

Hue

Second Video Switch Con-

trol

Main Video

Switch Control

Not to be used

SVHS switch

HOUT

Disable

16

17

Horizontal Shift

50/60Hz Selection

Vertical Amplitude

Vertical

Sync

ON/OFF

Line Sync

ON/OFF

18

PLL1 Time Constant

Wide Line

Vertical Position

AV Mode

Time

Constant

(Note 2)

Copy

Protection

Mode

Vertical

Output Low

Level

Noise Detector

Threshold

Long

Blanking

Not to be

19

Blanking

Used

(Note 2)

Control

1A

1B

1C

1D

Manual Cut-off Register - Red

Manual Cut-off Register - Green

Manual Cut-off Register - Blue

CVBS1out

AGC SIF

Time

Constant

1E

1F

Not to be used

Audio Out

(Mono or Sound

subcarriers)

Sound

Status

Luma Delay Not to be

VERT Out-

put Inhibition

AVL

Shift

used

Refresh

Note 1: Specification changed versus STV223XD/224XC.

Note 2: New feature versus STV223XD/224XC.

6.2 SUMMARY OUTPUT SIGNALS (READ MODE)

Reg.

Addr.

(Hex)

Data D7

Data D6

Data D5

Data D4

Data D3

Data D2

Data D1

Data D0

Chroma Standard

Selection Status

Video Ident. Field Lock

50/60 Hz

Status

Power ON

Reset

00

Crystal Selection Status

Status

FM Dem.

VCO Cal.

Status

Scanning

VCO Cal.

Status

Test

FBext De-

Not to be

tection

Safety

Status

Horizontal Noise Detec-

Lock Status tor Status

SVHS

Status

01

02

Used

Cut-off loop status

FM Sound Carrier Levels

Digital AF Status

Tuner AGC

Output Sta-

tus or AVL

Gain Status

03

IC Identification

46/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3 INPUT SIGNALS (WRITE MODE)

Not used data bits must be set to “0”.

6.3.1 PIFVCO Free Running

Reg.

Addr.

(Hex)

Data

Description

PIFVCO

Free Running

Fine Adjustment

Bits

Comments

PIF Typical + 0.7 MHz.

PIF Free Running mid range.

PIF Typical - 0.7 MHz.

d7 d6 d5 d4 d3 d2 d1 d0

00

7

0

1

0

1

0

1

0

1

0

1

0

1

0

1

X

Not to be used

1

X

0

6.3.2 PIF Free Running Coarse

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Addr.

(Hex)

Description

Bits

Comments

01

PIFVCO Free

X

0

X

0

1

0

1

0

1

0

1

PIFVCO = F0 + 2.0 MHz.

PIFVCO = F0 (mid range).

PIFVCO = F0 - 1.8 MHz.

Running Coarse

Adjustment for

38.9 MHz Carrier

4

PIFVCO Free

Running Coarse

Adjustment for

33.9 MHz Carrier

(L’)

X

1

0

1

0

1

0

1

0

1

PIFVCO = F0 + 1.3 MHz.

PIFVCO = F0 (mid range).

PIFVCO = F0 - 1.2 MHz.

4

1

X

0

1

X

0 = Negative Modulation.

1 = Positive Modulation.

PIF Modulation

L/L’ Standard

Selection

X

0

1

X

0 = L Standard.

1 = L’ Standard.

X

0

1

X

0 = AFC Active.

1 = AFC Defeat (read register 02, d2 d1 d0 = 000).

Digital AFC Defeat

PIF

0

1

X

0 = Over-modulation detection off.

1 = Over-modulation regulation active.

Over-modulation

6.3.3 PIF Features

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Addr.

(Hex)

Description

Bits

Comments

02

5

X

0

1

0

1

0

1

0

1

0

1

V

- 1.6 dB.

= 1.6 V (black / white).

+ 1.5 dB.

Typ.

CVBS Output Ampli-

tude

Not to be used

1

X

0

X

0 = Normal Operating Mode

1 = Overmodulation Reset

Overmodulation

Reset

X

0

1

X

1

0

1

X

0 = 2

1 = 2.3

, no external sound trap.

VPP

CVBS Output

, external sound trap.

VPP

47/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.4 Tuner Delay

Reg.

Data

Addr.

(Hex)

Description

Bits

Comments

d7 d6 d5 d4 d3 d2 d1 d0

03

6

X

0

1

0

1

0

1

0

1

0

1

0

1

Min. Start point 2 mV

Typ. Start point 12 mV

Max. Start point 80 mV

at PIF input.

RMS

Tuner AGC Starting

Point Adjustment

at PIF input.

at PIF input

RMS

2

0

1

0

1

0

1

X

50 µA/dB.

95 µA/dB.

170 µA/dB.

270 µA/dB.

Tuner AGC Gain

6.3.5 SIF Features and Audio Switches

Data

d7 d6 d5 d4 d3 d2 d1 d0

Reg.

Addr

(Hex)

Description

Bits

Comments

FM/AM audio selected.

External audio selected.

MUTE selected.

04

2

X

0

1

0

1

X

Main Audio Output

X

0

1

0

1

0

1

X

Automatic control, according to sound standard.

De-emphasis at 75 µs and FM deviation at ±25 kHz.

De-emphasis at 50 µs and FM deviation at ±50 kHz.

Audio FM Wide mode &50 µs De-emphasis (BGDKI).

To be used with 224xH version only in QSS architec-

ture.

FM De-emphasis

Switch and FM de-

viation range con-

trol

2

FM Demodulator

defeat

1

X

0

1

X

0 = FM Demodulator active.

1 = FM Demodulator defeat, FM out muted.

AM/FM output se-

lection

X

0

1

X

0 = FM output selected.

1 = AM output selected and FM demod OFF.

QSS and AM de-

modulator defeat

X

0

1

X

0 = QSS and AM demod active,

1 = QSS and AM demod not active (OFF)

1

Intercarrier filter

ON/OFF

0

1

X

0 = Intercarrier filter ON

1 = Intercarrier filter OFF

1

7

05

Volume Control

Attenuation,

Linear curve (dB)

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Attenuation = 0 dB.

Attenuation = 78 dB.

7-bit resolution.

Volume Control

Attenuation,

Non-linear curve

(d0 = 0, d7 = 1)

6

1

0

1

0

1

0

1

0

1

0

1

0

1

0

Attenuation = 0 dB.

Attenuation = 78 dB.

6-bit resolution.

48/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Data

Reg.

Addr

(Hex)

Description

Bits

Comments

d7 d6 d5 d4 d3 d2 d1 d0

06

PIF VCO Compen-

sation

X

0

1

0 = Optimized for PIF from 33.9 to 38.9 MHz

1 = Optimized for PIF 45.75 & 58.75 MHz

1

2

X

0

1

0

1

0

1

X

6.5 MHz sound selected.

6.0 MHz sound selected.

5.5 MHz sound selected.

4.5 MHz sound selected.

Sound Standard

Selection

AGC SIF time

constant (AM)

1

X

0

1

X

0 = Auto Time constant.

1 = Fast Time constant forced.

SAW filter switch

output

X

0

1

X

0 = output low (0.4 V Max.).

1 = output high (4 V Min.).

CVBS output

(from PIF circuit)

X

0

1

X

0 = CVBS output enable.

1 = CVBS output muted.

1

QSS/Inter-carrier

Application

X

0

1

X

0 = QSS application, intercarrier filter OFF

1 = Intercarrier application

1

Not to be used

0

X

6.3.6 Video Controls

Data

d7 d6 d5 d4 d3 d2 d1 d0

Reg.

Addr

(Hex)

Description

Bits

Comments

07

6

X

0

1

0

1

0

1

0

1

0

1

0

1

-24 dB gain (Min. contrast).

0 dB gain (Max. contrast).

Contrast Control

0 = APR, APR Threshold, tracked with contrast.

1 = RGB Peak Limitation, threshold not tracked with

contrast.

1

X

0

1

X

RGB Peak

Limitation

Note: RGB Peak Limitation active when WR10 d0 =

1

Blue Screen

Feature

1

6

1

6

1

0

1

X

0 = Blue screen OFF.

1 = Blue screen ON.

08

09

X

0

1

0

1

0

1

0

1

0

1

0

1

-40 dB gain (Min. saturation).

+9 dB gain (Max. saturation).

Saturation Control

Half Contrast Ena-

ble

X

0

1

X

0 = Disabled.

1 = Enabled.

Oversize Blanking

Enable

0

1

X

0 = Disabled.

1 = Enabled.

X

0

1

0

1

0

1

0

1

0

1

0

1

-30ꢀ of B/W at Max. contrast.

+30ꢀ of B/W at Max. contrast.

Brightness Control

RGB Blanking

X

0

1

X

0 = Not active (normal operation).

1 = Active.

0

X

0 = Enable: RGB output blanked when I

voltage

CATH

is far from internal cut-off reference (cut-off loop not

locked), during IC start-up.

Cut-off Blanking

1

X

1 = Disable: RGB output not blanked by cut-off loop.

49/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Data

Reg.

Addr

(Hex)

Description

Bits

6

Comments

d7 d6 d5 d4 d3 d2 d1 d0

0A

Red Drive Adjust

(White Point R)

X

0

1

0

1

0

1

0

1

0

1

0

1

-6 dB gain (Min. drive).

0 dB gain (Max. drive).

2

0

X

RGB ext. insertion enable controlled by FBext input

pin.

0

1

0

1

X

RGB ext. insertion disable, FBext control disable.

RGB ext. insertion forced (FBext not active).

YCrCb insertion forced.

if WR0F d5 = 0 : Y on Gext (luminance input) and

CVBSin (for synchro), Cr on Rext, Cb on Bext.

if WR0F d5 = 1 : Y on CVBSin (for luminance and

synchro), Cr on Rext, Cb on Bext, trap and luma de-

lay disabled.

RGBext/YCrCb

Selection

0B

Green drive adjust-

ment

(white point G)

6

1

X

0

1

0

1

0

1

0

1

0

1

0

1

-6 dB gain (Min. drive).

0 dB gain (Max. drive).

Black stretch ena-

ble

X

0

1

X

0 = Black stretch disable.

1 = Black stretch enable.

Black Stretch

Reference Level

0

1

X

0 = 0 IRE (no set-up).

1 = 7.5 IRE (NTSC set-up).

1

6

0C Blue drive adjust-

ment

X

0

1

0

1

0

1

0

1

0

1

0

1

-6 dB gain (Min. drive).

0 dB gain (Max. drive).

(white point B)

1

X

0

1

X

0 = Cut-off loop active.

1 = Cut-off loop frozen.

Cut-off loop control

LSB (9th bit) Red

cut-off counter

0

1

X

Red LSB = 0

Red LSB = 1

1

6

0D Red cut-off adjust-

ment (Black point

R)

X

0

1

0

1

0

1

0

1

0

1

0

1

-150 mV.

+150 mV.

2

0

1

0

1

X

Automatic Cut-off application, data = 00hex in

registers 1A,1B, 1C.

Manual cut-off application DC at R,G,B output are

adjusted thanks registers 1A, 1B, 1C.

Manual Cut-off Se-

lection

0

1

0

X

Not allowed.

0E

Green cut-off ad-

justment (Black

point G)

6

X

0

1

0

1

0

1

0

1

0

1

0

1

-150 mV.

+150 mV.

Not to be used

1

X

0

X

LSB(9thbit)Green

cut-off counter

0

1

X

Green LSB = 0

Green LSB = 1

50/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Data

Reg.

Addr

(Hex)

Description

Bits

4

Comments

d7 d6 d5 d4 d3 d2 d1 d0

0F

Peaking Control

X

0

1

0

1

0

1

0

1

0 dB at center Freq. Min. peaking.

+ 6dB at center Freq.Max. peaking.

Coring on sharp-

ness

1

X

0

1

X

0 = Coring off.

1 = Coring on.

Chroma Trap and

Luma Delay Selec-

tion

1

X

0

1

X

0 = Trap and Luma Delay Enabled.

1 = Trap and Luma Delay Disabled.

CVBS2 ON/OFF

White Insertion

APR Enable

1

X

0

1

X

0 = CVBS2 output Enabled.

1 = CVBS2 output Disabled.

0

1

X

0 = White insertion not active.

1 = White insertion enable during HOUT soft mode.

10

0 = APR disable.

1

X

0

1

1 = APR enable.

Note: WR10 d0 to be set to 1 when RGB peak limi-

tation is used

APR Threshold

4

1

X

0

1

0

1

0

1

0

1

X

50 IRE.

100 IRE.

RGB OSD Con-

trast Selection

X

0

1

X

0 = Contrast control disable.

1 = Contrast control enable.

CRT/LCD Display

X

0

1

X

0 = RGB output blanking active, CRT Display

1 = RGB output blanking replaced by black level,

LCD Display

White Insertion

1

0

1

X

White Insertion controlled by WR0Fd7

White forced at RGB Output

6.3.7 Chroma Controls

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Addr.

(Hex)

Description

Bits

5

Comments

11

X

0

1

0

1

0

1

0

1

0

1

0 kHz.

+100 kHz.

Bell Filter Adjust

PAL/NTSC

Demodulation Gain

1

X

0

1

X

0 = 0 dB gain (nominal).

1 = +6 dB gain.

X

0

1

X

0 = 90° matrix selection.

1 = 104° matrix selection (in NTSC only).

NTSC Matrix

1

0

1

X

0 = ACC overload active.

1 = ACC overload disable.

ACC Overload Disable

Bandpass adjust

1

4

12

X

0

1

0

1

0

1

0

1

f = fosc.

f = 1.1*fosc.

Chroma reference out-

put

1

2

X

0

1

X

0 = Chroma reference output OFF.

1 = Chroma reference output ON.

X

0

1

X

0 = ON.

1 = OFF.

Chroma DL selection

Not to be used

0

X

51/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Reg.

Addr.

(Hex)

Data

Description

Bits

Comments

d7 d6 d5 d4 d3 d2 d1 d0

2

X

0

1

0

1

0

1

X

XTAL1 (4.43/3.5XX MHz).

XTAL2 (3.5XX MHz).

XTAL3 (3.5XX MHz).

Not allowed.

Crystal Selection

2

X

0

1

X

0

1

0

1

X

0

1

X

1

X

0

1

0

X

1

X

0

X

PAL.

NTSC.

SECAM (only with XTAL1).

Not allowed.

AUTO mode.

Not allowed

Standard Selection

13

X

0

1

X

0

1

0

1

Two-crystal, P/S/N application.

Three-crystal, P/N application.

One-crystal, P/S/N 4.43 MHz application.

Two-crystal, P/N application.

Crystal Inhibition

Not to be used

2

6

0

X

14

15

Hue Control

(in NTSC only)

X

0

1

0

1

0

1

0

1

0

1

0

1

-45°.

+45°.

1

2

X

0

1

X

0 = Flesh disable (OFF).

1 = Flesh enable (ON).

Flesh Enable

Wide Flesh Charac-

Teristic Selection

0

1

X

0 = Normal characteristic.

1 = Wide characteristic.

X

0

1

0

1

X

CVBS1 selected.

CVBS2 selected.

Y/CVBS3 selected.

Main Video Switch

2

1

X

0

1

0

1

0

1

X

CVBS1 selected.

CVBS2 selected.

Y/CVBS3 selected.

Y+C selected.

Second Video Switch

Control

SVHS Switch Chroma

Decoder Input Selec-

tion

X

0

1

X

0 = Main CVBS selected.

1 = CHR input selected (SVHS).

Not to be used

2

1

X

0

X

0

1

X

0 = Safety active

1 = Reset Safety, Safety non-active

Safety Reset

6.3.8 Scanning Controls

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Addr.

(Hex)

Description

Bits

6

Comments

16

X

0

1

0

1

0

1

0

1

0

1

0

1

-2.5 µs.

+2.5 µs.

Horizontal Shift

Horizontal Output

Pulse Disable

1

X

0

1

X

0 = Normal mode.

1 = HOUT disable (high level).

1

0

1

X

0 = Interlace mode.

1 = De-interlace mode.

Interlace

52/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Reg.

Addr.

(Hex)

17

18

Data

Description

Bits

Comments

Pin.

d7 d6 d5 d4 d3 d2 d1 d0

X

0

1

0

1

0

1

0

1

0

1

0

1

1.5 V on V

6.0 V on V

AMP

Vertical Amplitude

6

Pin.

0

1

0

1

0

1

X

Auto (50 Hz when no ident.).

60 Hz.

50/60Hz Selection

Vertical Position

2

50 Hz.

Auto (60 Hz when no ident.).

4

2

X

0

1

0

1

0

1

0

1

4 V high level on VERT Pin.

6 V high level on VERT Pin.

X

0

1

0

1

0

1

X

Auto time constant selection.

Short time constant.

Long time constant.

PLL1 Time Constant

Very long time constant.

Horizontal

Synchronization

1

X

0

1

X

0 = PLL1 active.

1 = PLL1 not active (horiz. free running mode).

Vertical

Synchronization

0

1

X

0 = Vertical synchronization active.

1 = Vertical free running mode.

19

Vertical Output Low

Level Control

X

0

1

0 = 0.1 V low level on VERT Pin.

1 = 2 V low level on VERT Pin.

X

0

1

X

0 = Adapted to standard.

1 = Long blanking (50 Hz blanking) both in 50 Hz

and 60 Hz modes

Frame Blanking

Noise Detector

Threshold

2

X

0

1

0

1

X

Low threshold.

High threshold.

Not to be used

1

X

0

X

0

1

X

0 = Standard Line Blanking

1 = Wide Line Blanking

Wide Line Blanking

X

0

1

X

0 = Normal PLL1 operating mode.

1 = Copy Protection Mode.

Copy Protection Mode

1

0

1

X

0 = PLL1 short time constant during all frames.

1 = PLL1 long time constant during vertical blank-

ing, short time constant for the rest of the field.

AV Mode Time

Constant

6.3.9 Miscellaneous

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Addr.

(Hex)

Description

Bits

Comments

1A Manual Cut-off

Register Red

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Low DC at RGB output.

High DC at RGB output.

8

1B Manual Cut-off

Register Green

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Low DC at RGB output.

High DC at RGB output.

1C Manual Cut-off

Register Blue

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Low DC at RGB output.

High DC at RGB output.

1D CVBS1 Out selectionat

pin 29 SDIP56

0

1

0

1

0

1

0

CVBSOUT1 selected at pin 29 SDIP56.

Default value, set to 0h when CVBSOUT1 not

used.

8

7

1

1E Not To Be Used

0

X

0

SIF AGC time

constant (positive mod-

ulation)

0

1

0

Automatic SIFAGC Time constant control.

Forced Long time constant.

53/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Reg.

Addr.

(Hex)

Data

Description

Bits

Comments

d7 d6 d5 d4 d3 d2 d1 d0

1F

1

X

0

X

0

1

VERT normal operating.

VERT inhibition (forced to high DC level controlled

by vertical position register).

VERT Output Inhibition

1

X

0

1

X

0 = Sound level status continuously refreshed

1 = Sound level status refreshed only at the end of

vertical synchronization pulse

Sound Level Status

Refresh

Not to be used

1

X

0

X

0

1

0

X

Standard luma delay.

140 ns on luma delay.

Luma Delay Shift

2

X

0

1

0

1

0

1

X

AVL OFF, read reg 03h, d7 = AGC Tuner Status

AVL ON, read reg 03h, d7 = AVL Gain Status

AVL ON, read reg 03h, d7 = AGC Tuner Status

reg 04h, d3d2 = 11: AVL Gain Status = 1 (Min.)

^{reg 04h, d3d2}≠ 11: AVL Gain Status = 0 (Max.)

Output of AM/FM demodulator.

Sound subcarriers selected.

Audio output muted.

AVL Control & Status

2

0

1

0

1

0

1

X

0

X

AM/FMOUT pin selec-

tion

Main audio switch output, either internal or exter-

nal audio depending on main audio switch selec-

tion.

reg 04h; d0 = 0: internal audio.

reg 04h; d0 = 1: external audio.

6.4 OUTPUT SIGNALS (READ MODE)

Reg.

Data

d7 d6 d5 d4 d3 d2 d1 d0

Description

Bits

Comments

Addr.

(Hex)

00

1

2

X

0

1

Normal mode.

Power down mode.

Power-on Reset

Field Frequency

Field Lock Status

Video Identification

X

0

1

X

50 Hz.

60 Hz.

X

0

1

X

Not locked.

Locked.

X

0

1

X

No identification.

Video identification.

X

0

1

0

1

0

1

X

XTAL1 (4.43 MHz).

XTAL2 (3.5X MHz).

XTAL3 (3.5X MHz).

XTAL1 (3.5X MHz).

Standard Status Crystal

Selection

2

0

1

0

1

0

1

X

PAL.

NTSC.

SECAM.

COLOR OFF.

Standard Selection

54/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

Reg.

Data

Description

Bits

Comments

No SVHS (CVBS mode).

Addr.

(Hex)

01

d7 d6 d5 d4 d3 d2 d1 d0

1

3

X

0

1

SVHS status

SVHS mode.

X

0

1

X

High S/N.

Low S/N.

Noise detection

Scanning Horizontal

phase-locked loop status

X

0

1

X

Not locked.

Locked.

X

0

1

X

Safety not active.

Safety active.

Safety status

Fast Blanking detection on

external fast blanking pin

X

0

1

X

No insertion detected.

Insertion on FBext.

X

0

1

X

Test

Not to be used

Scanning VCO

Calibration

X

0

1

X

Not calibrated.

Calibrated.

FM demodulation VCO

calibration

0

1

X

Not calibrated.

Calibrated.

02

X

0

1

0

1

0

1

F

- F0 < -300 kHz.

PLL

-300 kHz < F

- F0 < -60 kHz.

PLL

Digital AFC status

Sound carrier level

-60 kHz < F

- F0 < +60 kHz.

PLL

+60 kHz < F - F0 < +300 kHz.

PLL

+300 kHz < F

- F0.

PLL

3

2

X

0

1

0

1

0

1

0

1

0

X

Level 1 (low sound carrier signal).

Level 2.

Level 3.

Level 4.

Level 5.

Level 6.

Level 7.

Level 8 (high sound carrier signal)

0

1

0

1

0

X

Blue CO register < 011110000

Blue CO register > 100001111

011110000 < Blue CO register < 100001111

and Icath not locked

Blue cut-off register and

cut-off loop status

1

X

011110000 < Blue CO register < 100001111

and Icath locked

03

1

X

0

1

TQFP64

SDIP56

IC identification

Tuner AGC Output Status

(reg 1Fh, d5d4 = 00 or 01

or 11)

0

1

X

Tuner AGC Output not active

Tuner AGC Output active

AVL Gain Status

(reg 1Fh, d5d4 = 10)

0

1

X

AVL Gain Max. (Low audio signal)

AVL Gain Min. (High audio signal)

55/86

STV224X, STV228X, STV223X - I²C BUS SELECTION

6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS

Power-On Reset is active when the power supply V_CCDis below 3 Volts.

All data from all registers must be written by microprocessor after power-on. Unused data must be set to

0. POR values are not tested during production.

Reg.

Addr.

(Hex)

Initial Data Value

Comments

d7 d6 d5 d4 d3 d2 d1 d0

00

1

0

1

0

1

0

1

PIFVCO free running fine adjustment Typical.

PIFVCO coarse typ, BG = 38.9 MHz, Negative modulation, AFC active,

no PIF over-modulation regulation.

01

02

03

0

1

0

CVBS amplitude Typical, 2V

PP.

Tuner AGC starting point Typical, Tuner AGC gain Min.

FM/AM out selected, FM de-emphasis and FM deviation auto-control, FM demod.

active, FM out selected, QSS and AM demod. active.

04

05

06

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

Volume control attenuation at maximum, linear curve (dB).

PIF < 42 MHz, 6.5 MHz sound carrier selected, auto AGC SIF time constant, saw

filter switch control at low level, CVBS out enabled, QSS mode.

07

08

09

0A

0B

0C

0D

0E

0

1

0

Contrast at middle, blue screen disabled.

Saturation at middle, half contrast disabled, oversize blanking disabled.

Brightness at middle, RGB Blanking not active.

Red drive at middle, RGBext insertion enabled (FBext Pin control).

Green drive at middle, black stretch disabled, black stretch ref 0IRE.

Blue drive at middle, cut-off loop active.

Red cut-off at middle, automatic cut-off loop.

Green cut-off at middle.

Peaking on luma at middle, coring off, trap ON (CVBS & color identified), CVBS2

ON, white insertion not active.

0F

10

11

0

1

0

1

0

APR disabled, APR threshold at middle, RGB OSD contrast disabled.

No shift of bell filter center frequency, 0dB P/N demod. gain, 90° matrix selection,

ACC overload ON.

No shift of bandpass center frequency, chroma reference output off, chroma delay

line on.

12

0

13

14

0

1

0

Two crystals application P/S/N, PAL XTAL1 forced mode, two crystal applications.

Hue at middle, flesh disabled, normal flesh characteristic.

CVBS1 selected on main CVBS output, CVBS1 selected on second CVBS output,

CVBS mode.

15

0

16

17

0

1

0

Horizontal shift at middle, horizontal output enabled, interlace mode.

Vertical amplitude at middle, auto 50/60 Hz identification.

Vertical position at middle, automatic time constant selection on PLL1, PLL1 active,

Vertical synchronization active.

18

19

0

1

0

0.1 V low level at pin VERT, frame blanking adapted to standard, noise detector low

threshold.

1A

1B

1C

1D

1E

1F

0

Not active, auto cut-off.

R-Y output at pin 29 (SDIP56)

Not to be used, except d4: Auto. SIF AGC time constant control in L/L’ standards.

VERT pulse active, standard luma delay, AVL off, AM/FM mono sound selected.

56/86

STV224X, STV228X, STV223X - I²C BUS SPECIFICATION COMPATIBILITY

7 I²C BUS SPECIFICATION COMPATIBILITY

The STV2246H/36H, 2286H, 2247H/37H, 2248H/

38H and 2249H/39H I²C bus specification is com-

patible between IC version. However, some dedi-

cated settings must be used for the different ver-

sions. The following sections show the differences

between the various versions. An “X” means that

the function is available and can be set to “1” or

“0”.

2248H/38H 2249H/39H 2247H/37H 2246H/36H 2286H

RGBext

WR0A d7:6

1

X

0

X

01

L/L' mode

WR01 d5

0

Positive/Negative Modulation

WR01 d4

0

FM/AM Output Selection

WR04 d5

0

00000

1

Bell Filter

WR11 d4:0

X

00000

QSS/Intercarrier Application

WR06 d6

X

1

QSS and AM defeat

WR04 d6

1

AGC SIF Time Constant

WR06 d3 & WR1E d4

X

00

CVBSout amplitude

WR02 d4:0

10000

Note 1: The FBEXT pin must be connected to ground.

CAUTION: The specification of WR04 d3:2 has changed.

For 224XC versions (refer to STV224XC datasheet), WR04 d3:2 = 11 (bin.) means that FM demod de-

emphasis is bypassed. This function is used for BTSC application compatibility.

For 224XD/XE versions, WR04 d3:2 = 11: NOT TO BE USED.

For 224XH versions, WR04 d3:2 = 11 (bin.) means that Audio FM Wide mode is selected and it must be

used in QSS applications only. In this case, the following registers must be programmed:

WR04 d3:2 = 11 (bin.) (Audio FM Wide mode)

WR06 d6 = 0 (QSS application)

WR1F d5:4 = 1x (bin.) (AVL ON)

CAUTION: The specification of WR07 d6 has changed.

For 224XC/224XD versions, WR07 d6 = 1 means “insertion of cut-off pulses after a vertical oversize

blanking”

For 224XE/XH versions, WR07 d6 = 1 means “RGB peak limitation”

CAUTION: The specification of WR0F d5 has changed.

The new specification is:

WR0F d5 = 0: trap and luma delay active; this is not changed

WR0F d5 = 1: trap and luma delay disabled (bypass); this is changed

57/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

8 INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 20. Ground and Supply Voltages

V_CCD(5 V)

Pin 53 (SDIP56)

V_CCIF(5 V)

Pin 12 (SDIP56)

V_CC2(8 V)

Pin 17 (SDIP56)

V_CC1(8 V)

Pin 45 (SDIP56)

GNDD

Pin 54 (SDIP56)

GND_IF

Pin 10 (SDIP56)

GND1

Pin 43 (SDIP56)

GND2

Pin 19 (SDIP56)

Figure 21. Main Audio Output

V

(8V)

CC2

AUDIOOUT

Pin 55 (SDIP56)

50 Ω

GND

IF

58/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 22. Scanning PLL Filter

V

(8 V)

V

CC1

SLPF

Pin 50 (SDIP56)

V

REF

GND1

V

CC1

V

CC1

59/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 23. I²C Bus Data Input

V

(5V)

CCD

5 V

SDA

Pin 52 (SDIP56)

10 kΩ

GNDD

Figure 24. I²C Bus Clock Input

V

(5V)

CCD

5 V

SCL

Pin 51 (SDIP56)

10 kΩ

GNDD

60/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 25. FM Demodulation Capacitor

V

(5V)

CCIF

FMCAP

Pin 56 (SDIP56)

GND

IF

GND

IF

V

(5V)

CCIF

GND

IF

50 Ω

GND

IF

GND

IF

GND

IF

GND

IF

Figure 26. IF Inputs

V

(5V)

CCIF

SIFIN2

Pin 2 (SDIP56)

SIFIN1

Pin 1 (SDIP56)

PIFIN2

Pin 7 (SDIP56)

PIFIN1

Pin 6 (SDIP56)

GND

IF

GND

IF

2.5 V

61/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 27. AGC SIF Capacitor

V

(5V)

CCIF

GND

IF

AGCSIFCAP

Pin 3 (SDIP56)

GND

IF

GND

IF

GND

IF

GND

IF

Figure 28. Voltage Reference Filtering

V

(5V)

CCIF

VREFIF

Pin 4 (SDIP56)

GND

IF

GND

IF

62/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 29. AGC PIF Capacitor

V

(5V)

CCIF

GND

IF

GND

IF

GND

IF

AGCPIFCAP

Pin 5 (SDIP56)

GND

IF

GND

IF

GND

IF

GND

IF

Figure 30. SAW Filter Switch Output (TQFP64)

V_CCIF(5V) (Pin 20 - TQFP64)

SAWSWI

(TQFP64)

15

GND_IF

63/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 31. AGC Tuner Output

V

(5V)

CCIF

12 V

GND

TUNERAGCOUT

Pin 8 (SDIP56)

IF

GND

IF

GND

IF

Figure 32. IF PLL Filter

V

(5V)

CCIF

GND

IF

IFPLL

Pin 9 (SDIP56)

GND

GND GND

IF

GND

IF

GND

IF

64/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 33. AM/FM Mono or Stereo Sound Carrier Output

V

(8V)

CC2

AM/FMOUT/SC

Pin 11 (SDIP56)

GND

IF

GND

(8V)

IF

Figure 34. Internal CVBS Output

V

CC2

V

(5V)

CCIF

GND

IF

INTCVBSOUT

Pin 13 (SDIP56)

GND

IF

GND

IF

GNDD

65/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 35. External Audio Input

V

(5V)

CCIF

EXTAUDIN

Pin 14 (SDIP56)

GND

IF

GND

IF

GND

IF

GND

IF

Figure 36. PIF LC Inputs

V

(5 V)

CCIF

PIFLC1

Pin 15 (SDIP56)

GND

IF

GND

IF

PIFLC2

Pin 16 (SDIP56)

GND

IF

GND

IF

GND

IF

66/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 37. CVBS Video Inputs

V

(8 V)

CC1

CVBSIN1

Pin 18 (SDIP56)

GND1

CVBSIN2

Pin 20 (SDIP56)

GND2

GND1

Figure 38. Black Stretch Capacitor

V

(8 V)

CC2

BS

Pin 21 (SDIP56)

GND2

67/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 39. RGB & YCrCb External Video Inputs

V

(8 V)

CC2

BEXT/CB

Pin 25 (SDIP56)

GEXT/Y

Pin 26 (SDIP56)

REXT/CR

Pin 27 (SDIP56)

GND2

Figure 40. External Fast Blanking Input

V

(8 V)

CC2

V

(5 V)

CCD

FBEXT

Pin 28 (SDIP56)

GND2

GND2 GND2

GND2 GND2 GND2

GND2

68/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 41. Y/CVBS External Input

V

(8 V)

CC1

GND1

Y/CVBSIN3

Pin 22 (SDIP56)

GND2

GND1

Figure 42. Chroma (SVHS) Input

V

(8 V)

CC1

CHR

Pin 23 (SDIP56)

GND1

GND2

69/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 43. Automatic RGB Peak Regulation

V

(8 V)

CC2

APR

Pin 24 (SDIP56)

GND2

Figure 44. RGB Outputs

V

(8 V)

CC2

BOUT

Pin 30 (SDIP56)

GOUT

Pin 31 (SDIP56)

ROUT

Pin 32 (SDIP56)

GND2

70/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 45. Cathode Current Measurement Input

V

(8 V)

CC2

ICATH

Pin 33 (SDIP56)

GND2

71/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 46. OSD RGB Inputs

V

(8 V)

CC2

BOSD

Pin 34 (SDIP56)

GOSD

Pin 35 (SDIP56)

ROSD

Pin 36 (SDIP56)

GND2

72/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 47. Half Contrast Input

V

(8 V)

CC2

FBOSD/HC

GND2

Pin 37 (SDIP56)

GND2

Figure 48. 3.5X MHz Crystal or Bell Filter Tuning Capacitor

V

(5 V)

CCD

V

(8 V)

CC1

XTAL3/BTUN

Pin 38 (SDIP56)

GND1

73/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 49. 4.43/3.5X MHz Crystal

V

(5 V)

CCD

V

(8 V)

CC1

XTAL1

Pin 40 (SDIP56)

XTAL2

Pin 39 (SDIP56)

GND1

Figure 50. Chroma PLL Filter

V

(5 V)

CCD

V

(8 V)

CC1

CPLF

Pin 41 (SDIP56)

GND1

GND1 GND1

GND1

GND1 GND1 GND1

GND1

74/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 51. XTAL1 Control Pin, Vert. Amplitude DAC Output and Chroma Reference Signal Output

V

(8 V)

CC1

X1/VAMP¨/CHROUT

Pin 42 (SDIP56)

GND1

GND1 GND1

GND1

Figure 52. NTBC or Main CVBS Video Switch Output

V

(8 V)

CC1

NTBC/CVBSOUT1

Pin 29 (SDIP56)

GND1 GND1 GND1

75/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 53. Second CVBS Video Switch Output

V

(8 V)

CC1

CVBSOUT2

Pin 44 (SDIP56)

GND1

Figure 54. Beam Current Limiter Control Voltage and Safety Input

(8 V)

V

CC1

GND1

BCL/SAF

Pin 46 (SDIP56)

GND1

GND1GND1

GND1

76/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 55. Vertical Output Pulse

V

(8 V)

CC1

VERT

Pin 47 (SDIP56)

GND1

Figure 56. Horizontal Output Pulse

V

(8 V)

CC1

GND1

Pin 48 (SDIP56)

HOUT

GND1

77/86

STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 57. Line Flyback Input and Super-Sandcastle Output

V

(8 V)

CC1

GND1

LFB/SSC

Pin 49 (SDIP56)

GND1

78/86

STV224X, STV228X, STV223X - APPLICATION DIAGRAMS

9 APPLICATION DIAGRAMS

Figure 58. STV2246H

79/86

STV224X, STV228X, STV223X - APPLICATION DIAGRAMS

Figure 59. STV2247H

I

CATH

GND

ROUT

GOUT

BOUT

V

CC

80/86

STV224X, STV228X, STV223X - APPLICATION DIAGRAMS

Figure 60. STV2248H

I

CATH

GND

ROUT

GOUT

BOUT

V

CC

81/86

STV224X, STV228X, STV223X - APPLICATION DIAGRAMS

Figure 61. STV2238H (TQFP64)

GOSD

SLPF

SCL

BOSD

ICATH

ROUT

SDA

V

CCD

GNDD

GOUT

BOUT

AUDIOOUT

FMCAP

SIFIN1

NC

CVBSOUT1

FBEXT

1V

PP

to teletext

output

SIFIN2

REXT/Cr

AGCSIFCAP

V

GEXT/Y

REFIF

BEXT/Cb

AGCPIFCAP

PIFIN1

APR

CHR

PIFIN2

Y/CVBSIN3

NC

SAW

TUNERAGCOUT

82/86

STV224X, STV228X, STV223X - THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE

10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE

Proper cooling of the STV223XH circuit (TQFP64 package) requires particular care.

The value of R_thJAgiven in the datasheet corresponds to the following condition:

The circuit is soldered ABOVE a printed circuit board (with as much ground plane as possible) and it ex-

changes freely with its environment by natural convection and radiation.

This 'ideal' condition may not be possible in a real TV set environment and R_thJAmay increase above the

given value.

In particular, the worst case is when the circuit is soldered BELOW the chassis board in a confined volume

between the chassis board and the bottom of the TV box. In this case, R_thJAmay increase.

Recommendations:

■ to perform a quick theoretical temperature evaluation before making the chassis board

■ later on, to perform detailed temperature measurements on the chassis board, in its real environment

Thermal data given in the data sheet allows an estimation of junction and case temperatures to be made.

For estimation on pin temperature, the following additional data, derived from a measurement on a typical

chassis, can be used: R_thJP~ 20°C/W;

Example of temperatures ESTIMATION:

(Reminder: only in the case where the circuit is soldered ABOVE the chassis board in a relatively 'free' en-

vironment).

Dissipated power: Pd = 1.3W.

Ambient temperature : Ta = 60°C (inside the TV set).

Junction temperature: Tj = Ta + R_thJA* Pd = 125°C.

Case temperature: Tc = Tj - R_thJC* Pd = 112°C.

Pins temperature: Tp = Tj - R_thJP* Pd = 99°C.

83/86

STV224X, STV228X, STV223X - GENERAL PACKAGE INFORMATION

11 GENERAL PACKAGE INFORMATION

11.1 PACKAGE MECHANICAL DATA

Figure 62. 56-Pin Shrink Plastic Dual In Line Package, 600-mil Width

A

6.35

0.250

0.195

A1 0.38

0.015

A2 3.18

4.95 0.125

b

0.41

0.89

0.016

0.035

b2

C

D

E

0.20

0.38 0.008

53.21 1.980

0.015

2.095

50.29

15.01

0.591

E1 12.32

14.73 0.485

0.580

e

1.78

0.070

0.600

eA

eB

15.24

17.78

0.700

0.200

L

2.92

5.08 0.115

Number of Pins

N

56

PDIP56S

Figure 63. 64-Pin Thin Quad Flat Package

0.10mm

.004

A

1.60

0.063

0.006

A1 0.05

0.15 0.002

A2 1.35 1.40 1.45 0.053 0.055 0.057

B

C

0.30 0.37 0.45 0.012 0.015 0.018

0.09 0.20 0.004 0.008

D

16.00

14.00

12.00

16.00

14.00

12.00

0.80

0.630

0.551

0.472

0.630

0.551

0.472

0.031

D1

D3

E

E1

E3

e

K

0° 3.5° 7°

0.45 0.60 0.75 0.018 0.024 0.030

1.00 0.039

Number of Pins

ND 16 NE

L

L1

N

64

16

L1

L

K

84/86

STV224X, STV228X, STV223X - REVISION HISTORY

12 REVISION HISTORY

Table 2. Document Revision History

Date

Revision

Changes

15-Apr-2003

05-Feb-2004

1

2

Initial release.

Added TQFP64, STV223XH version.

TQFP64 thermal and mechanical data added.

Minor corrections, typos, alignment etc.

Added device summary on cover page.

Minor corrections.

21-Apr-2004

08-Sep-2009

3

4

85/86

STV224X, STV228X, STV223X - REVISION HISTORY

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86/86


型号：	STV2238
厂家：	ST
描述：	I²C bus-controlled multistandard single chip TV processor IC总线控制的多标准单芯片电视处理器电视
文件：	总86页 (文件大小：3069K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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