STV223XH [STMICROELECTRONICS]
IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR; IC总线控制的多标准单芯片电视处理器型号: | STV223XH |
厂家: | ST |
描述: | IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
文件: | 总86页 (文件大小:2332K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
STV224XH/228XH/223XH
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)
■ 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
SHRINK56
(Plastic Package)
ORDER CODE: STV224XH/8XH
■ 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
■ South America Capability (PAL-M / PAL-N /
NTSC)
■ Chroma Subcarrier Output
■ Black Stretch Circuit
■ Peaking Circuit
■ Automatic Cut-off Current Loop
TQFP64 (14 x 14 x 1.4 mm)
(Full Thin Plastic Quad Flat Pack)
■ Manual Cut-off possible for low-cost
applications
ORDER CODE: STV223XH
■ 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
■ SAW Filter Switch Control (TQFP64 package
only)
■ Very Few External Components
April 2004
1/86
1
STV224XH/228XH/223XH
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
2/86
1
STV224XH/228XH/223XH
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
4.7.3 Bell Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8 CHROMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3/86
STV224XH/228XH/223XH
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
STV224XH/228XH/223XH
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 SUMMARY OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
12 GENERAL PACKAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
12.1 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5/86
STV224XH/228XH/223XH - 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
X
X
X
X
X
X
X
QSS/Intercarrier
Intercarrier Only
AM
X
X
X
X
Audio FM Wide mode with QSS Application
1 EXT RGB Input (OSD)
X
X
X
X
X
OSD RGB Inputs & RGBEXT/YCrCb Inputs
X
X
1.2 PIN DESCRIPTION
Table 1. Pin Configuration
PIN
STV224XH/228XH
STV223XH
Symbol
Description
SDIP56
TQFP64
8
1
2
SIFIN1
SIFIN2
SIF Input (Please refer to Note 1)
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
VREFIF
AGC SIF Capacitor (Please refer to Note 1)
Voltage Reference Filtering
AGC PIF Capacitor
PIF Input
4
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
GNDIF
IF Ground
AM/FMOUT/SC
VCCIF
AM/FM Mono Sound or Stereo Carriers Output
5 V IF Supply
INTCVBSOUT
EXTAUDIOIN
PIFLC1
Internal CVBS Output
External Audio Input
LC Input
PIFLC2
LC Input
VCC2
Video/Luma Supply Voltage (8 V)
Internal Video Input
CVBSIN1
6/86
2
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
STV224XH/228XH
STV223XH
Symbol
Description
Video/Luma Ground
SDIP56
19
TQFP64
27
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
Blue Output
GOUT
Green Output
ROUT
Red Output
ICATH
Cathode Current Measurement Input
OSD Blue Input
BOSD
GOSD
OSD Green Input
ROSD
OSD Red Input
FBOSD/HC
XTAL3/BTUN
XTAL2
XTAL1
CLPF
OSD Fast Blanking Input / Half Contrast
3.5X MHz Crystal or Bell Filter Tuning Capacitor
3.5X MHz Crystal
4.43/3.5X MHz Crystal
Chroma PLL Filter
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
VCC1
Second Video Switch Output
Chroma/Scanning Power Supply (8 V)
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
Scanning PLL Filter
SCL
I²C Bus Clock Input
3
SDA
I²C Bus Data Input
4
VCCD
Digital Supply Voltage (5 V)
Digital Ground
5
GNDD
AUDIOOUT
FMCAP
NC
6
Main Audio Output
7
FM Demodulation Capacitor
Connection to GND recommended
30
7/86
2
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
STV224XH/228XH
STV223XH
Symbol
Description
SDIP56
TQFP64
31
-
-
-
-
-
-
NC
NC
NC
NC
NC
NC
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
Connection to GND recommended
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
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
BCL/SAF
AM/FMOUT/SC
V
V
CCIF
CC1
INTCVBSOUT
EXTAUDIOIN
PIFLC1
CVBSOUT2
GND1
X1/VAMP/CHROUT
CLPF
PIFLC2
V
XTAL1
CC2
CVBSIN1
XTAL2
GND2
CVBSIN2
BS
XTAL3/BTUN
FBOSD/HC
ROSD
GOSD
BOSD
Y/CVBSIN3
CHR
APR
I
CATH
BEXT/Cb
GEXT/Y
REXT/Cr
ROUT
GOUT
BOUT
NTBC/CVBSOUT1
FBEXT
Note: Underlined pin functions are optional.
8/86
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 2. STV223Xh Pinout (TQFP64)
NC
Y/CVBSIN3
CHR
TUNERAGCOUT
SAW
PIFIN2
PIFIN1
APR
BEXT/Cb
GEXT/Y
AGCPIFCAP
V
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
STV224XH/228XH/223XH - 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
PIFLC2
PIFLC1
REF
SCL
SDA
10/86
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 4. STV2247H (SDIP56) Block Diagram
LFB/SSC
SLPF
REXT/Cr
GEXT/Y
BEXT/Cb
FBEXT
X1/VAMP/CHROUT
CLPF
XTAL1
XTAL2
BS
XTAL3
CVBSOUT2
NTBC/CVBSOUT1
Sound Subcarriers
FM Mono
FMOUT/SC
CVBSIN1
CVBSIN2
EXTAUDIOIN
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
IFPLL
AUDIOOUT
VREF
PIFLC2
PIFLC1
SCL
SDA
11/86
STV224XH/228XH/223XH - 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
VREF
SCL
SDA
12/86
STV224XH/228XH/223XH - 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
Mono
FMOUT/SC
Y/CVBSIN3
EXTAUDIOIN
CHR
FMCAP
INTCVBSOUT
IFPLL
AUDIOOUT
PIFLC2
PIFLC1
VREF
SCL
SDA
13/86
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 7. STV2286H (SDIP56) Block Diagram
NTBC
NTBC
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
PIFLC2
PIFLC1
VREF
SCL
SDA
14/86
STV224XH/228XH/223XH - 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
VREFIF
SCL
SDA
15/86
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 9. STV2237H (TQFP64) Block Diagram
BEXT/Cb
GEXT/Y
REXT/Cr
LFB/SSC
SLPF
FBEXT
X1/VAMP/CHROUT
CLPF
XTAL1
XTAL2
BS
XTAL3
CVBSOUT2
CVBSOUT1
Sound Subcarriers
FM Mono
FMOUT/SC
CVBSIN1
CVBSIN2
EXTAUDIOIN
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
IFPLL
AUDIOOUT
PIFLC2
PIFLC1
VREFIF
SCL
SDA
16/86
STV224XH/228XH/223XH - 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
VREFIF
SCL
SDA
17/86
STV224XH/228XH/223XH - 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
VREFIF
SCL
SDA
18/86
STV224XH/228XH/223XH - 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.
■ 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.
■ 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.
■ Chroma subcarrier output which could be used
■ 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).
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-
■ Digital buffer for SAW filter switching.
locked loops.
■ Video switch, three Composite Video
Broadcasting Signal (CVBS) inputs and two
CVBS outputs (which can be used to drive a
teletext decoder).
■ Integrated VCO, auto-calibration using the
chroma crystal reference frequency.
■ Automatic time constant selection for the first
PLL, three selectable time constants.
■ SVHS switch, Y input is combined with CVBS3
input.
■ Video identification circuit (independent from
PLL1).
■ Capability to output Y+C signal on second
CVBS output.
■ Noise detector circuit.
■ 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
STV224XH/228XH/223XH - 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
VCCIF: 5 V power supply dedicated to IF proces-
sors. GNDIF is the ground reference of these
parts.
VCCD: 5 V power supply dedicated to I²C bus and
digital parts. GNDD is the ground reference of
these parts.
VCC1: 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 ±2% (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 VPP if external sound
trap is not connected (QSS mode, for example).
CVBS output at 2.3 VPP if 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
STV224XH/228XH/223XH - 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 50% 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 kꢀ. When a
3.58 MHz crystal is connected to Pin XTAL1, the
output load must be less than 10 kꢀ.
– 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.
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].
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 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
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
olds, the OSD RGB signals are selected. When
pulse is maintained until VCC1 is less than 3 V
(VCC1 power 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 VCC1 increases from 0 to 6.0 V
and when VCCD has 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 75% duty cycle [tHIGH
/
– 4.25 MHz, for SECAM
(-20 dB rejection between 4.1 MHz and
4.4 MHz).
(tHIGH +tLOW)]. 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 VCC2 reaches 75% of the VCC1. It is also
active at shutdown when the VCC1 floats 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
CC2 drops below 75% of the VCC1
.
3.3.2 Integrated Chroma Bandpass
At shutdown, horizontal pulses are disabled when
V
CC1 is less than 5.4 V or when VCCD is 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
STV224XH/228XH/223XH - 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 ICATH input 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
STV224XH/228XH/223XH - 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 60% 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: CM = 13fF ±3fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70ꢀ.
– 3.579545 MHz Crystal specification (NTSC M).
Mode of operation: serial resonance (without
load capacity),
Motional capacitance: CM = 11fF ±3fF,
24/86
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
Shunt capacitance: CP < 7 pF,
3.5.3 SECAM Decoder
Serial resistance: RS < 70 ꢀ.
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: CM = 12fF ±2fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70ꢀ.
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: CM = 12fF ±2fF,
Shunt capacitance: CP < 7pF,
Serial resistance: RS < 70ꢀ.
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
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4 ELECTRICAL CHARACTERISTICS
4.1 ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC_8V
8 V Supply Voltage
5 V Supply Voltage
10
7
V
V
VCC_5V
VESD
Capacitor 100 pF discharged via 1.5 kꢀ serial resistance (Human Body Model)
kV
°C
°C
±2
TOPER
TSTG
Operating Temperature
Storage Temperature
0, +70
-55, +150
4.2 THERMAL DATA
Refer to Section 10 for more information about TQFP64 cooling.
Typical
Value
Symbol
Parameter
Unit
RthJA
RthJA
RthJC
Junction-ambient Thermal Resistance at ambient 25°C
Junction-ambient Thermal Resistance at ambient 25°C
Junction-case Thermal Resistance at ambient 25°C
SDIP56
TQFP64
TQFP64
40
50
10
°C/W
°C/W
°C/W
4.3 SUPPLY
(Supplies at Typical Values, Tamb = 25° C, I²C bus register at power-on reset value, automatic cut-off
mode, unless otherwise specified).
Symbol
VCCIF
VCCD
VCC1
VCC2
ICCIF
ICC5F
ICCI
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
4.75
7.6
5
5
5.25
5.25
8.4
V
8
V
7.6
8
8.4
V
VCCIF Current Consumption
VCC5F Current Consumption
VCCI Current Consumption
VCC2 Current Consumption
VCCIF = 5 V. No-load at RGB outputs.
VCCD = 5 V. No-load at RGB outputs.
VCCI = 8 V. No-load at RGB outputs.
VCC2 = 8 V. No-load at RGB outputs.
58
48
40
56
mA
mA
mA
mA
ICC2
VCCI = VCC2 = 8 V,
PD
Total Power Dissipation
VCCIF = VCC5V = 5 V
No-load at RGB outputs.
1300
mW
26/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4 IF SECTION
Tamb = 25°C, VCCIF = 5 V, VCC2 = 8V, IF input =10 mVRMS (at sync level for negative modulation, or at
peak white level for positive modulation).
Video modulation DSB, D = 90% and fSC = 33.4 MHz in B/G, D = 95% in L, fPC = 38.9 MHz.
Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = M27 kHz.
Volume Attenuation = 0 dB, AM carrier input: 10 mVRMS, 54% 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
µVRMS
kꢀ
75
1.5
1.5
85
2
95
2.5
2.5
Differential Input Resistance
Differential Input Capacitance
Gain Control Range
PIF Inputs.
2
pF
65
dB
VMax.
Maximum Input Signal
+1dB at Video Output (INTCVBSOUT) 0.12 0.15
VRMS
4.4.2 PIFAGC Negative Modulation
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
IC
Charging Current at AGCPIFCAP Pin
450
675
900
µA
Discharging Current at AGCPIFCAP
Pin
ID
10
15
20
µA
IC/ID
Charging/Discharging Current Ratio
41
45
49
4.4.3 PIFAGC Positive Modulation
Symbol
Parameter
Test Conditions
Min. Typ. Max.
1.75 2.5 3.25
Unit
IC
Charging Current at AGCPIFCAP Pin
mA
Discharging Current at AGCPIFCAP
Pin
ID
0.15 0.25 0.35
µA
L mode in case of missing VITS
pulses and no white in Video con-
tent
Additional Charging Current at
AGCPIFCAP Pin
ICP
2.8
20
4
5.2
40
µA
Threshold for additional charging cur- Referred to nominal black level
THICP
IDP
160
30
mV
µA
rent
2.3 VPP at INTCVBSOUT Pin
Additional Discharging Current
Referred to nominal black level
2.3 VPP at INTCVBSOUT Pin
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
IAGCP
Maximum Tuner plus Sinked Current (See Note 1)
40
mA
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
mVRMS
Variation of take over point with tem-
perature
STT
0.03 0.07
dB/K
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STV224XH/228XH/223XH - 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
fVCO
50
MHz
regeneration
(see Note 2)
VILOCK
TVCO
PIF Input Signal for PIF PLL locking
PIFVCO Temperature Coefficient
40
70
µVRMS
ppm/K
±20
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 1.61
1.36 1.6 1.84
PIFOUT-Q Video Amplitude at INTCVBSOUT
(INTCVBSOUT =2 VPP
)
V
PIFOUT-I
Pin
reg 02 data = 90h
(INTCVBSOUT =2.3 VPP
)
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
3
5
5
%
deg
VPIF
VR2IF
S/N
Residual Carrier Signal
Residual 2nd Harmonic
Video Output S/N Ratio
1
10
10
mVRMS
mVRMS
dB
1
See Note 3
55
60
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
VWTH
VWIL
VBTH
VBIL
White Noise Threshold Voltage
White Noise Insertion Level
Black Noise Threshold Voltage
Black Noise Insertion Level
6.7
3.7
1
V
V
V
V
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
2.6
8
BW
Video Bandwidth
6
10
5
MHz
%
LUMLIN
ROUT
Luminance Non Linearity
Internal Output Resistance
50
3
ꢀ
reg 02 data = 10hex
(INTCVBOUT = 2 VPP
RLOAD
IVID
Output Load Resistance
2
7
kꢀ
)
reg 02 data = 90hex
(INTCVBSOUT = 2.3 VPP
Top Sync Level
Video Output Source Current
10
13
mA
)
DCOUT
DC Output 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
dB
Suppression of Video signals har-
monics
35
40
Note 3: S/N = 20 log [PIFOUT Black to White / VNOISE(mVRMS) weighted CCIR 567.
Note 4: Supply Voltage ripple rejection = 20log (VSUPPLY/VOUTPUT) measured at 100 Hz with VAC Max. = 100 mVpp ap-
plied to VCC IF = 5 V.
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.7 SIF Amplifier
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
- 3dB at AM/FMOUT Pin (see Note 5)
AM output amplitude,
FM subcarrier amplitude
VINSIF
SIF Input Sensitivity
55
40
µVRMS
GRSIF
CINSIF
RINSIF
Gain Control Range
- 3dB to +1dB at AM/FMOUT Pin
SIF Inputs (see Note 6)
SIF Inputs
60
dB
pF
kꢀ
Differential Input Capacitance
Differential Input Resistance
1.5
1.5
2
2
2.5
2.5
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
IC
ID
2.4
100
4.4.9 SIF AGC (AM)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
µA
INORMAL Charging/Discharging Current
IFAST Charging/Discharging Current
Normal time constant
Fast time constant
±6
±2.4
mA
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 mVRMS
kHz
FMOUT Pin
FM dev = ±13.5 kHz MN
DFMX
_norm
THD < 10%, normal audio mode,
AF = 1 kHz
Maximum FM Deviation
QSS mode, Audio FM Wide mode
(reg 04h, d3d2 = 11),
AF = 1 kHz
DFMX
_w_qss
Maximum FM Deviation
400
kHz
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 = 30%, AF = 1 kHz
See Note 4
32
45
dB
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
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.12 AM Demodulator
Symbol
Parameter
Test Conditions
54% modulation
Min. Typ. Max.
Unit
AM Audio Output Amplitude at AM/
FMOUT Pin
AFOUT
400
500
630 mVRMS
AMlowco Low Cut-off Frequency
AMhighco High Cut-off Frequency
-3 dB compared AFout
-3 dB compared AFout
54% 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
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
mVRMS
MHz
V
150
Sound subcarriers
7.5
SIF dcout DC Output Level
4
Fundamental wave (38.9 MHz) and
harmonics
SIFres
SIFcur
Residual Carrier
0.4
mVRMS
mA
AM or FM demod. output selected
Sound subcarriers output selected
0.5
1.5
Sink Output Current
4.4.14 SAW Filter Switch Output (TQFP64 only)
Symbol Parameter
Test Conditions
ISINK = 2 mA
Min. Typ Max.
Unit
V
SAW low Low Output Voltage
SAWcur Maximum allowed Current
SAW high High Output Voltage
0.4
2
mA
V
ISOURCE = 2 mA
4
4.4.15 External Audio Input
Symbol
RIN
Parameter
Input Resistance
Test Conditions
Min. Typ. Max.
Unit
kꢀ
70
100
2.4
130
VIDC
DC Input Voltage
V
AFIN
maximum Audio Input Signal
2
VRMS
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
VIN = 1 VRMS, f = 1 kHz,
Register 05hex, data = 00hex
Minimum Attenuation (Audio Out/
AM-FM Out)
AMin
-1
0
1
dB
ASTEP Step Resolution
reg 05, d7 = 0
0.7
dB
mV
V
DCSH
VODC
DC Output Shift
DC Output Level
From max. volume to min. volume
50
4
f = 1 kHz, fM = ±27 kHz,
Ext. Audio Input = 500 mVRMS
Audio Amplitude difference
between sources
AFDIFF
2
dB
ROUT
BWO
Output Resistance
Output Bandwidth
110
0.1
ꢀ
MHz
%
1
VIN = 1 VRMS, f = 1 kHz
THD_AM Total Harmonic Distortion
0.3
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
Measured at 0 dB attenuation,
Ext. Audio Input at 500 mVRMS,
CCIR 468-4 Weighted Quasi Peak
Signal to Noise Ratio from Exter-
nal Input
S/N1
75
dB
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
dB
Ext. Audio Input at 500 mVRMS
Signal to Noise Ratio from FM
Demod
Measured at 20 dB attenuation,
FM: ± 27 kHz (Standards BGDKI)
Measured at f = 100 Hz from
Supply Voltage Rejection from
External Input
SVRV
XT
60
70
dB
dB
V
CC = 5 V and VCC = 8 V
Crosstalk
See Note 7
CCIR 468-4 Weighted Quasi Peak
Volume at minimum
50
50
100
60
60
120
NOISE Output Noise Level
AFIN Audio Input Level
µV
Volume at typical
Volume at maximum
VRMS
Volume = -25 dB, THD < 1%
2
Note 7: Measured from any input to output at f = 10 kHz with RL = 10kꢀꢁand Rg = 600ꢀ, Volume attenuation = 0dB.
4.4.17 AVL
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
dB
AVL Gain Control Range
(7-bit Resolution)
GAVL
20
-15
AVLMAX Maximum attenuation
dB
Measured at AUDIOOUT
Volume Control at maximum
Reg.AVL Regulation amplitude
0.55
VRMS
4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS
4.5.1 Luminance & CVBS Inputs
Symbol
Parameter
Black Level Voltage
Test Conditions
Min. Typ. Max.
Unit
V
DCIN1
Input selected on main CVBS output
3.3
VIN
-I
CVBS or Y Input Voltage
Negative Clamping Current
Positive Clamping Current
1
1.41
35
7
VPP
µA
During SYNC pulse
20
27
4.5
I
2.5
µA
4.5.2 Combined Chrominance & SVHS Selection Input
Symbol
V
Parameter
Chrominance Input Voltage
Input Amplitude before Clipping
DC Voltage
Test Conditions
Min. Typ. Max.
Unit
VPP
Burst Amplitude, 100/75 Color Bar
0.3
0.6
VCLIP
VDC
VPP
V
1
SVHS Mode
1.55
0.50
1.70
0.90
1.85
1.45
150
VTH
SVHS Threshold Voltage
Output Current
V
ILOW
0V at CHR Pin
µA
4.5.3 CVBS1 Output (Pin 29 - SDIP56)
Symbol
VOUT
Parameter
Dynamic Output Amplitude
Output Load Resistance
Test Conditions
Register 1Dhex, data = 07hex
Register 1Dhex, data = 07hex
Min.
Typ. Max.
Unit
VPP
kꢀ
1.5
RLOAD
3
Register 1Dhex, data = 07hex
VIN = 1 VPP
BW
CVBS Bandwidth
10
MHz
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STV224XH/228XH/223XH - 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
VOUT2
VPP
3
ROUT2
BW2
10
ꢀ
VIN = 1 VPP
10
50
MHz
dB
dB
V
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
RLOAD2
Output Load Resistance
1.5
kꢀ
4.5.5 OSD RGB Inputs
Symbol
Parameter
Test Conditions
Min.
Typ.
4
Max.
Unit
V
VCLAMP Clamp Level
Max. Contrast
VRGB
RGB Input Voltage
0.7
4.28
1
VPP
-
CRGB
RGB Gain
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
IRGB
Clamping Current
60
50
100
140
µA
dB
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
VTHFB1A
OSD Insertion Threshold Voltage
0.5
0.7
0.85
V
Half Contrast enable
Register 08hex d6 = 1
VTHFB1B
VTH-HC
OSD Insertion Threshold Voltage
Half Contrast Threshold Voltage
1.5
0.5
3.2
1.9
0.7
2.3
V
V
Half Contrast enable
Register 08hex d6 = 1
0.85
Oversize Blanking active
Register 08hex, d7 = 1
VTHFB2
tSWI1
Blanking Threshold Voltage,
Insertion Switching Delay
4
4.8
40
V
20
ns
From FBOSD = 4V to starting of
blanking falling edge at RGB out-
puts
tSWI2
IFB
Blanking Switching Delay
Input current
100
ns
0V at Pin FBOSD
10
µA
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.5.7 External RGB/YCrCb Inputs
Symbol
Parameter
Test Conditions
Max. Contrast
Min.
Typ.
3.5
Max.
Unit
V
VCLAMP Clamp Level
VRGB
RGB Input Voltage
0.7
1
VPP
100% color bar
register 0Ahex d7d6 = 11
VYCrCb YCrCb Input Voltage
VPP
Y
Cr
Cb
1
0.7
0.7
CRGB RGB Gain
Max. Contrast, Max. Drive
4.28
-
Difference of black level of internal
Dblack and external signals at the RGB out- OSD signal versus internal signal
puts
50
mV
IRGB
Clamping Current
60
50
100
140
µA
dB
Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz
4.5.8 External Fast Blanking Input
(See Note 8)
Symbol
VTHFB
tSWI
Parameter
Insertion Threshold Voltage
Insertion Switching Delay
Input Current
Test Conditions
Min.
Typ.
0.7
20
Max.
0.85
40
Unit
V
0.5
ns
µA
V
IFB
0V at Pin FBEXT
10
VMAX
Max. voltage allowed at FBEXT input
5
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
tD1
Parameter
Delay Time PAL/NTSC
Delay Time SECAM
Delay Time PAL/NTSC
Delay Time SECAM
Test Conditions
Min.
Typ. Max.
Unit
ns
SVHS mode, Register 1F d3 = 0
SVHS mode, Register 1F d3 = 0
CVBS mode, Register 1F d3 = 0
CVBS mode, Register 1F d3 = 0
520
640
560
710
tD2
ns
tD3
ns
tD4
ns
lumDel1 = reg 1F d3 = 0, standard
luma delay
lumDel2 = reg 1F d3 = 1, shifted luma
delay
tSHIFT
Delay Time (lumDel1 - lumDel2)
140
±30
ns
ns
Groupdel Group Delay up to 3.5MHz
Trap-off
4.6.2 Peaking Circuit
Electrical parameter measured with color identified
Symbol
Parameter
Center Frequency
Test Conditions
Trap-off, coring ON
Min.
Typ. Max.
Unit
fPEAK
2.5
3
3.5
MHz
Gain Variation from Min. to Max.
peaking
GPEAK
At fPEAK, coring ON
9
dB
%
Amplitude Variation compared to
B/W amplitude
Overshoot
2T pulse, Max. peaking, coring ON
55
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STV224XH/228XH/223XH - 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
V
µA
µA
I0IRE
Charging Current
Y = 0IRE
35
4.6.4 Y Output
Symbol
Parameter
Test Conditions
Min.
Typ. Max.
Unit
VBW
V
Yout-DC Black level
3.7
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
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 (VPP/VRMS
)
50
4.7 FILTERS
4.7.1 Y Trap Filter
Symbol
Parameter
Test Conditions
Min.
Typ. Max.
Unit
fTRAP-PN Notch Frequency
PAL/NTSC
fOSC
MHz
SECAM fnb
SECAM fnr
4.2
4.5
fTRAP-S Notch Frequencies
fTRAP-ACC Notch Frequency Accuracy
QTRAP Trap Quality Factor
CrejPN Color Subcarrier Rejection
CrejS Color Rejection in SECAM Mode
MHz
%
3.5
Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking
Min.
1.5
-
PAL/NTSC
20
10
dB
dB
From 4.1 to 4.6 MHz
At 3.9 MHz
20
4.7.2 Chrominance Bandpass
Symbol
fBP
Parameter
Center Frequency
Bandpass Quality Factor
Test Conditions
Min.
-5%
2.8
Typ. Max.
Unit
MHz
-
Register 12h, d3-d0 = 0000
fOSC
3.5
+5%
4.2
QBP
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.7.3 Bell Filter
Symbol
fBELL
Parameter
Center Frequency
Bell Quality Factor
Test Conditions
Min.
4.27
14
Typ. Max.
Unit
MHz
-
Register 11h, d4-d0 = 00000
4.29
16
4.31
18
QBP
4.8 CHROMA PART
4.8.1 ACC
Symbol
Parameter
Test Conditions
Min.
Typ.
26
Max.
Unit
dB
Change of burst overall ACC control
range < 2dB
GACC ACC Control Range
VMin.
Minimum Burst Signal Amplitude
Within the ACC control range
0.03
VPP
4.8.2 ACC Overload
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
VTH
Chroma regulation Threshold
ACC overload ON, PAL/NTSC
3
dB
4.8.3 Killer
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
Burst amplitude on selected CVBS
input
mVPP
Ident-kill Color on Threshold of ident. circuit
Kill-Hyst Color off Killer Hysteresis
5
2
mVPP
Strong signal condition, S/N > 40 dB
4.8.4 Chroma PLL
Symbol
CaptR
HoldR
Parameter
Catching Range
Holding Range
Test Conditions
Min. Typ. Max.
Unit
With recommended crystal and rec-
ommended CLPF filter value.
±300
> or = to capture range
4.8.5 PLL Loop Filter (PAL/NTSC)
Symbol
Parameter
Maximum Control Current
Leakage Current
Test Conditions
Min. Typ. Max.
Unit
Color search mode (colour not ident.)
Color identified
1000
350
IC
µA
IL
5
µA
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
RHUE
±35
±45
±55
Deg
4.8.7 Automatic Flesh Control
Symbol Parameter
FleshNom. Nominal Flesh Tint Phase
Phase Correction when Auto Flesh
Test Conditions
Min. Typ. Max.
Unit
118
Deg
Fcorr0
At FleshNom
0
Deg
Deg
Deg
Deg
ON
FMax.-N Maximum Phase Correction
Register 14(HEX), d6 = 1, d7 = 0
Register 14(HEX), d6 = 1, d7 = 0
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
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
FMax.-W Maximum Phase Correction
Register 14(HEX), d6 = 1, d7 = 1
±20
Deg
Chroma Input Phase at Max. cor-
Flesh-W
rection
Register 14(HEX), d6 = 1, d7 = 1
Register 14(HEX), d6 = 1, d7 = 1
±45
±90
Deg
Deg
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, 75% color bar
SECAM mode, 75% color bar
±2
±2
5
%
PhaseErr Phase Error in demodulated signal PAL/NTSC mode, 90% matrix
Deg
PAL mode, 75% color bar green-
TransPal Chroma Transient Time
700
ns
magenta transient
SECAM mode, 75% 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. tRN -tRN+1
tRN: rise time line N (direct)
tRN+1: rise time line N +1 (delayed)
Ctrans
Dgain
150
ns
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
CHR-amp
ISCHR
Parameter
Test Conditions
Min. Typ. Max. Unit
Chroma VCO Reference Signal
Amplitude
VPP
mA
0.4
0.5
Sink Current
4.9 SCANNING PART
4.9.1 Synchronization Separator
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
50 300 450 mV
VSYNC
Synchronization Pulse Amplitude
4.9.2 Horizontal Oscillator
Symbol
fH50
Parameter
Test Conditions
50 Hz mode
Min. Typ. Max. Unit
Horizontal Frequency
Horizontal Frequency
15.6
15.7
kHz
kHz
fH60
60 Hz mode
Low Frequency
High Frequency
14.7 15.0 15.3
fRANGE
fFREE
Frequency Control Range
kHz
kHz
15.9 16.3
—
Free Frequency when PLL1 opened
15.3 15.6 15.9
36/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.9.3 First Loop Filter
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
ILOW
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
mA
mA
IHIGH
IVLOW
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
µs
CrangeP2
Centered horizontal position
12
HSHIFT
HDRIFT
Horizontal Position Control Range
Horizontal Drift with temperature
5
5.25
µs
ns
From 0°C to 70°C (see Note 9)
200
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
VBURST
Output Voltage during Burst Key
4.8
2.6
1.8
5.3
5.8
3.4
2.2
V
Clamped Input Voltage during Line
Flyback
VLINE
3
V
VVERT
Twbg
Output Voltage during Vertical pulse
Burst key Pulse Width
2
V
3.8
µs
Delay of start of burst key to start of
sync.
Tdbg
Tvert
VTHLINE
I
5.2
10.5
83
µs
lines
%
Vertical Pulse Width
PLL2 and Line Blanking Threshold
Voltage referred to line level Vline
Vthline/Vline
Input Current
0.1
1
mA
4.9.6 Horizontal Output
Symbol
tW
Parameter
Test Conditions
ISINK = 5mA
Min. Typ. Max. Unit
Output Pulse Width
Low Output Voltage
26
28
30
0.4
6.5
0.7
10
µs
V
VLOW
VCCSTART VCC Start Level
5.5
0.5
6
V
VCCSTOP VCC Stop Level Hysteresis
VCCSTART - VCCSTOP
0.6
V
IMax.
Maximum allowed Output Current
Maximum allowed Output Voltage
Output Pulse Duty Cycle in soft-start
mA
V
VMax.
10
Tss
75
%
mode (tHIGH/(tHIGH+tLOW
)
4.9.7 Vertical Output
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
tW
Output Pulse Width
Low Output Voltage
Looking Range
10.5
Lines
Reg 19, d0 = 1
Reg 19, d0 = 0
1.5
2
0.1
2.5
0.5
VLOW
V
fLOCK
248
352
Lines
Lines
Lines
fFREE-50 Free Frequency (no Video signal) 50-Hz Forced or 50-Hz Auto mode
fFREE-60 Free Frequency (no Video signal) 60-Hz Forced or 60-Hz Auto mode
314
264
37/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
VHIGH
ISINK
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
Control
Max. position control
Output Sinking Current
0.7
0.7
1.0
1.0
mA
mA
ISOURCE Output Source Current
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
VAMP
Output Voltage Range
V
4.9.9 Crystal Detection
Symbol
R4.43
Parameter
Test Conditions
Min. Typ. Max.
Unit
kꢀ
Load resistance at pin VAMP
Load resistance at pin VAMP
4.43 MHz crystal on pin XTAL1
3.58 MHz crystal on pin XTAL1
80
R3.58
10
kꢀ
4.10 RGB CONTROL PART
4.10.1 Y Input
Symbol
Parameter
Test Conditions
Min.
Typ. Max.
Unit
V
YINdc
Black Level
3.7
Yin-B/W Black to White Amplitude
Yin-cur Input Current
0.7
1
1
V
µA
4.10.2 U & V Inputs
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
V
UVin-dc Black Level
3.7
Uin-amp B-Y Amplitude
Vin-amp R-Y Amplitude
UVin-cur Input Current
75% color bar PAL/SECAM
75% color bar PAL/SECAM
1.33
1.05
2.0
2.0
1
VPP
VPP
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
Parameter
Test Conditions
Min. Typ. Max.
Unit
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
SATMax. Maximum Saturation Control
6
9
12
dB
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
SATMin. Minimum Saturation Control
-40
dB
38/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.10.5 Brightness Control
Symbol
Parameter
Test Conditions
At Max. Contrast, APR OFF
BS mode, Max. Contrast.
Min. Typ. Max.
Unit
Brightness Control Range referred
to B/W amplitude on RGB outputs
Bright
50
60
70
%
Nominal Black Level at RGB out-
puts. Difference between black lev- (VBLACK - VCO)/V_BW
el VBLACK and inserted cut-off pulse V_BW: black to white amplitude at
Blacknom
-12
%
level VCO: VBLACK - VCO
RGB outputs.
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
NTSC mode, 104° matrix
-0.29
-0.22
-
-
4.10.7 Drive Adjustment (White Point Adjustment)
Symbol Parameter Test Conditions
WPrange White Point Adjustment Range On RGB outputs
Min. Typ. Max.
Unit
6
dB
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
2.5
V
V
1.5
3.5
4.10.9 Cathode Current Input
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
Leakage Current Reference Volt-
age
VLEAK
3.75
250
4.3
4
V
Cut-off Current Reference Voltage
referred to leakage current refer-
ence VLEAK
VCOFF
210
290
mV
Start Beam Current Detection Ref-
erence Voltage
VSBEAM
4.1
V
ISOURCE Source Current
150
µA
4.10.10 Beam Current Limiter Input
See Figure 14 on page 42 and Figure 15 on page 42.
Symbol
VTH1
Parameter
Test Conditions
Min. Typ. Max.
Unit
V
Contrast Attenuation Starting
Brightness Attenuation Starting
Contrast Attenuation Ending
5.75
5.5
VTH2
V
VTH3
5.25
14
V
CTRbcl Contrast Attenuation at VTH3
VTH4 Brightness Attenuation Ending
dB
V
4.5
39/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol
BRIGbcl Brightness Attenuation at VTH4
Clp High Clamping Voltage
Parameter
Test Conditions
Min. Typ. Max.
Unit
%
V
100
6.5
SAF-thr Safety Threshold
0.8
3
1
1.2
V
SAF-hold Supply Hold Voltage
Referred to VCC1
V
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
iAPR-D
iAPR-C
Discharging Current
Charging Current
5.5
µA
5.25
mA
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
versus RGB output amplitude with
APR OFF
GAPRMAX APR max gain
GAPRMIN APR min gain
+2.5
-3.0
dB
dB
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
versus RGB output amplitude with
APR OFF
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
STV224XH/228XH/223XH - 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
VBLUE
ISINK
Output Signal Amplitude
Output Sinking Current
1.5
VPP
1.2
1.5
mA
mA
ꢀ
ISOURCE Output Source Current
ROUT Internal Output Resistance
VBLANK Blanking Level
VCLIP High Clipping Level
1.8
0.4
150
0.2
6.8
No load
No load
V
V
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
±5% VCC1
Relative Variation in black level be-
Rel-Black
20
2
mV
mV/°C
dB
tween the three channels
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
6
5
8
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
STV224XH/228XH/223XH - 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
0
-20
-40
-60
-80
-20
-
40
-
60
-80
0
10 20 30 40
50 60 70
0
50
100
ma
150
C
o
de
(d
ec
i
l
)
Code (decimal)
42/86
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.11 I²C BUS CHARACTERISTICS
4.11.1 SCL
Symbol
VIL
Parameter
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Clock Frequency
Test Conditions
Min. Typ.
Max.
1.5
Unit
V
-0.5
3
VIH
ILI
VCC+0.5
10
V
VIN = 0 to VCC
-10
0
µA
kHz
ns
fSCL
tR
100
Input Rise Time
1.5V to 3V
1.5V to 3V
1.000
300
tF
Input Fall Time
ns
CI
Input Capacitance
10
pF
4.11.2 SDA
Symbol
VIL
VIH
ILI
Parameter
Low Level input Voltage
High Level input Voltage
Input Leakage Current
Input Capacitance
Test Conditions
Min. Typ.
Max.
1.5
Unit
V
-0.5
3
VCC+0.5
10
V
VIN = 0 to VCC
-10
µA
pF
ns
ns
V
CI
10
tR
Input Rise Time
1.5V to 3V
1.5V to 3V
IOL = 3mA
3V to 1.5V
1.000
300
tF
Input Fall Time
VOL
tF
Low Level Output Voltage
Output Fall Time
0.4
250
ns
pF
pF
CL
Load Capacitance
400
CI
Input Capacitance
10
4.11.3 I²C Timing
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
µs
tLOW
tHIGH
tSU,DAT
tHD,DAT
Clock Low period
Clock High period
4.7
4
µs
Data Set-up Time
Data Hold Time
250
ns
0
340
ns
Set-up Time from Clock High to
Stop
tSU,STO
4
µs
tBUF
Start Set-up Time following a Stop
Start Hold Time
4.7
4
µs
µs
tHD,STA
Start Set-up Time following Clock
Low to High Transition
tSU,STA
4.7
µs
Figure 19. I²C Bus Timing
SDA
t
BUF
t
t
SU,DAT
LOW
SCL
t
t
t
t
t
t
SU,STO
HD,STA
R
HD,DAT HIGH
F
t
SDA
SU,STA
43/86
STV224XH/228XH/223XH - 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
A
DATA
A
A
P
P
Read only mode
S
SLAVE ADDRESS
1
A
DATA 0
A
DATA 1
A
DATA 2
DATA 3
Slave Addres s
Address
A7
1
A6
0
A5
A4
0
A3
1
A2
0
A1
A0
X
Value
0
1
Write Address:
Read Address:
10001010
10001011
44/86
STV224XH/228XH/223XH - 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
CVBS Mute
SAW Filter
Switch
tion
(TQFP64)
RGB Peak
07
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
LSB GREEN
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
STV224XH/228XH/223XH - 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)
(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
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
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
STV224XH/228XH/223XH - 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
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
X
X
X
Not to be used
1
X
X
X
X
X
X
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
X
X
X
X
X
0
0
0
X
X
X
0
0
1
0
1
1
0
1
1
0
1
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
X
X
X
X
X
1
1
1
1
1
1
0
0
1
0
1
1
0
1
1
0
1
1
PIFVCO = F0 + 1.3 MHz.
PIFVCO = F0 (mid range).
PIFVCO = F0 - 1.2 MHz.
4
1
1
1
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = Negative Modulation.
1 = Positive Modulation.
PIF Modulation
L/L’ Standard
Selection
X
X
X
X
0
1
1
1
X
X
X
X
X
X
X
X
0 = L Standard.
1 = L’ Standard.
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = AFC Active.
1 = AFC Defeat (read register 02, d2 d1 d0 = 000).
Digital AFC Defeat
PIF
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
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
X
X
X
X
X
X
X
X
0
1
1
0
0
1
0
0
1
0
0
1
0
0
1
VTyp. - 1.6 dB.
VTyp. = 1.6 V (black / white).
VTyp.+ 1.5 dB.
CVBS Output Ampli-
tude
Not to be used
1
1
X
X
0
X
X
X
X
X
0 = Normal Operating Mode
1 = Overmodulation Reset
Overmodulation
Reset
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = 2 VPP, no external sound trap.
1 = 2.3 VPP, external sound trap.
CVBS Output
47/86
STV224XH/228XH/223XH - I²C BUS SELECTION
6.3.4 Tuner Delay
Reg.
Data
d7 d6 d5 d4 d3 d2 d1 d0
Addr.
(Hex)
Description
Bits
Comments
03
6
X
X
X
X
X
X
0
1
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
Min. Start point 2 mVRMS at PIF input.
Typ. Start point 12 mVRMS at PIF input.
Max. Start point 80 mVRMS at PIF input
Tuner AGC Starting
Point Adjustment
2
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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
04
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
0
1
X
FM/AM audio selected.
External audio selected.
MUTE selected.
Main Audio Output
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
Automatic control, according to sound standard.
De-emphasis at 75 µs and FM deviation at M25 kHz.
De-emphasis at 50 µs and FM deviation at M50 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
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = FM Demodulator active.
1 = FM Demodulator defeat, FM out muted.
AM/FM output se-
lection
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = FM output selected.
1 = AM output selected and FM demod OFF.
QSS and AM de-
modulator defeat
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = QSS and AM demod active,
1 = QSS and AM demod not active (OFF)
1
Intercarrier filter
ON/OFF
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Intercarrier filter ON
1 = Intercarrier filter OFF
1
7
05
Volume Control
Attenuation,
Linear curve (dB)
0
0
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
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
Attenuation = 0 dB.
Attenuation = 78 dB.
6-bit resolution.
48/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Data
Reg.
Addr
(Hex)
Description
Bits
Comments
d7 d6 d5 d4 d3 d2 d1 d0
06
PIF VCO Compen-
sation
X
X
X
X
X
X
X
X
X
X
X
X
X
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
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
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
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
0 = Auto Time constant.
1 = Fast Time constant forced.
SAW filter switch
output
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = output low (0.4 V Max.).
1 = output high (4 V Min.).
CVBS output
(from PIF circuit)
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = CVBS output enable.
1 = CVBS output muted.
1
QSS/Inter-carrier
Application
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = QSS application, intercarrier filter OFF
1 = Intercarrier application
1
1
Not to be used
0
X
X
X
X
X
X
X
6.3.6 Video Controls
Reg.
Data
d7 d6 d5 d4 d3 d2 d1 d0
Addr
(Hex)
Description
Bits
Comments
07
6
X
X
X
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
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
RGB Peak
Limitation
Note: RGB Peak Limitation active when WR10 d0 =
1
Blue Screen
Feature
1
6
1
1
6
1
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Blue screen OFF.
1 = Blue screen ON.
08
09
X
X
X
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
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Disabled.
1 = Enabled.
Oversize Blanking
Enable
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Disabled.
1 = Enabled.
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-30% of B/W at Max. contrast.
+30% of B/W at Max. contrast.
Brightness Control
RGB Blanking
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Not active (normal operation).
1 = Active.
0
X
X
X
X
X
X
X
0 = Enable: RGB output blanked when ICATH voltage
is far from internal cut-off reference (cut-off loop not
locked), during IC start-up.
Cut-off Blanking
1
X
X
X
X
X
X
X
1 = Disable: RGB output not blanked by cut-off loop.
49/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Data
d7 d6 d5 d4 d3 d2 d1 d0
Reg.
Addr
(Hex)
Description
Bits
6
Comments
0A
Red Drive Adjust
(White Point R)
X
X
X
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
0
X
X
X
X
X
X
RGB ext. insertion enable controlled by FBext input
pin.
0
1
1
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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).
RGBext/YCrCb
Selection
if WR0F d5 = 1 : Y on CVBSin (for luminance and
synchro), Cr on Rext, trap and luma delay disabled.
0B
Green drive adjust-
ment
(white point G)
6
1
X
X
X
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
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Black stretch disable.
1 = Black stretch enable.
Black Stretch
Reference Level
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = 0 IRE (no set-up).
1 = 7.5 IRE (NTSC set-up).
1
6
0C Blue drive adjust-
ment
X
X
X
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
X
0
1
X
X
X
X
X
X
X
X
X
X
X
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
X
X
X
X
X
X
X
X
X
X
X
X
X
Red LSB = 0
Red LSB = 1
1
6
0D Red cut-off adjust-
ment (Black point
R)
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-150 mV.
+150 mV.
2
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
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
1
0
X
X
X
X
X
X
X
X
X
X
X
X
Not allowed.
Not allowed.
0E
0F
Green cut-off ad-
justment (Black
point G)
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-150 mV.
+150 mV.
Not to be used
1
1
4
X
0
X
X
X
X
X
X
LSB(9thbit)Green
cut-off counter
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Green LSB = 0
Green LSB = 1
Peaking Control
X
X
X
X
X
X
X
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
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = Coring off.
1 = Coring on.
Chroma Trap and
Luma Delay Selec-
tion
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Trap and Luma Delay Enabled.
1 = Trap and Luma Delay Disabled.
CVBS2 ON/OFF
1
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = CVBS2 output Enabled.
1 = CVBS2 output Disabled.
White Insertion
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = White insertion not active.
1 = White insertion enable during HOUT soft mode.
50/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Data
Reg.
Addr
(Hex)
Description
Bits
Comments
d7 d6 d5 d4 d3 d2 d1 d0
10
APR Enable
0 = APR disable.
1 = APR enable.
Note: WR10 d0 to be set to 1 when RGB peak limi-
tation is used
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
APR Threshold
4
1
1
X
X
X
X
X
X
0
1
0
1
0
1
0
1
X
X
50 IRE.
100 IRE.
RGB OSD Con-
trast Selection
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Contrast control disable.
1 = Contrast control enable.
CRT/LCD Display
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = RGB output blanking active, CRT Display
1 = RGB output blanking replaced by black level,
LCD Display
White Insertion
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
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
X
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0 kHz.
+100 kHz.
Bell Filter Adjust
PAL/NTSC
Demodulation Gain
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = 0 dB gain (nominal).
1 = +6 dB gain.
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = 90° matrix selection.
1 = 104° matrix selection (in NTSC only).
NTSC Matrix
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = ACC overload active.
1 = ACC overload disable.
ACC Overload Disable
Bandpass adjust
1
4
12
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
f = fosc.
f = 1.1*fosc.
Chroma reference out-
put
1
1
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = Chroma reference output OFF.
1 = Chroma reference output ON.
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = ON.
1 = OFF.
Chroma DL selection
Not to be used
2
2
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
XTAL1 (4.43/3.5XX MHz).
XTAL2 (3.5XX MHz).
XTAL3 (3.5XX MHz).
Not allowed.
Crystal Selection
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
1
1
X
0
1
0
0
0
1
X
X
X
0
0
1
X
1
X
X
0
1
0
X
1
X
X
0
X
X
X
X
PAL.
NTSC.
SECAM (only with XTAL1).
Not allowed.
Not allowed.
AUTO mode.
Not allowed
Standard Selection
13
2
2
X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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
0
0
X
X
X
X
X
X
51/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Data
d7 d6 d5 d4 d3 d2 d1 d0
Description
Hue Control
Bits
Comments
14
6
1
1
2
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-45°.
+45°.
(in NTSC only)
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Flesh disable (OFF).
1 = Flesh enable (ON).
Flesh Enable
Wide Flesh Charac-
Teristic Selection
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Normal characteristic.
1 = Wide characteristic.
15
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
0
1
X
CVBS1 selected.
CVBS2 selected.
Y/CVBS3 selected.
Main Video Switch
2
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
CVBS1 selected.
CVBS2 selected.
Y/CVBS3 selected.
Y+C selected.
Second Video Switch
Control
SVHS Switch Chroma
Decoder Input Selec-
tion
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = Main CVBS selected.
1 = CHR input selected (SVHS).
Not to be used
2
1
X
0
0
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
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
Comments
16
6
1
1
X
X
X
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
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Normal mode.
1 = HOUT disable (high level).
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Interlace mode.
1 = De-interlace mode.
Interlace
17
18
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
1.5 V on VAMP Pin.
6.0 V on VAMP Pin.
Vertical Amplitude
6
2
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Auto (50 Hz when no ident.).
60 Hz.
50 Hz.
50/60Hz Selection
Vertical Position
Auto (60 Hz when no ident.).
4
2
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
4 V high level on VERT Pin.
6 V high level on VERT Pin.
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Auto time constant selection.
Short time constant.
Long time constant.
PLL1 Time Constant
Very long time constant.
Horizontal
Synchronization
1
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = PLL1 active.
1 = PLL1 not active (horiz. free running mode).
Vertical
Synchronization
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Vertical synchronization active.
1 = Vertical free running mode.
52/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Data
Description
Bits
1
Comments
d7 d6 d5 d4 d3 d2 d1 d0
19
Vertical Output Low
Level Control
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0 = 0.1 V low level on VERT Pin.
1 = 2 V low level on VERT Pin.
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
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
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
Low threshold.
High threshold.
Not to be used
1
1
1
X
X
0
0
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Standard Line Blanking
1 = Wide Line Blanking
Wide Line Blanking
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Normal PLL1 operating mode.
1 = Copy Protection Mode.
Copy Protection Mode
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
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
8
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 selection at
pin 29 SDIP56
0
0
0
0
0
0
0
0
0
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
0
0
X
0
0
0
0
SIF AGC time
constant (positive mod-
ulation)
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Automatic SIFAGC Time constant control.
Forced Long time constant.
53/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Data
d7 d6 d5 d4 d3 d2 d1 d0
Description
Bits
Comments
VERT normal operating.
VERT inhibition (forced to high DC level controlled
by vertical position register).
1F
1
X
X
X
X
X
X
X
X
X
X
0
0
X
X
0
1
VERT Output Inhibition
1
X
X
X
X
X
X
X
X
X
X
0
0
0
1
X
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
1
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
0
1
0
0
X
X
X
X
Standard luma delay.
140 ns on luma delay.
Luma Delay Shift
2
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
AVL OFF, read reg 03h, d7 = AGC Tuner Status
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 U 11: AVL Gain Status = 0 (Max.)
AVL Control & Status
2
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
X
X
X
X
X
X
X
X
Output of AM/FM demodulator.
Sound subcarriers selected.
Audio output muted.
Main audio switch output, either internal or exter-
nal audio depending on main audio switch selec-
tion.
AM/FMOUT pin 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
1
1
1
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
Normal mode.
Power down mode.
Power-on Reset
Field Frequency
Field Lock Status
Video Identification
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
50 Hz.
60 Hz.
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
Not locked.
Locked.
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
No identification.
Video identification.
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
XTAL1 (4.43 MHz).
XTAL2 (3.5X MHz).
XTAL3 (3.5X MHz).
XTAL1 (3.5X MHz).
Standard Status Crystal
Selection
2
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
PAL.
NTSC.
SECAM.
COLOR OFF.
Standard Selection
54/86
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Data
Description
Bits
Comments
No SVHS (CVBS mode).
Addr.
(Hex)
d7 d6 d5 d4 d3 d2 d1 d0
01
1
1
1
1
1
1
1
1
3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
SVHS status
SVHS mode.
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
High S/N.
Low S/N.
Noise detection
Scanning Horizontal
phase-locked loop status
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
Not locked.
Locked.
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
Safety not active.
Safety active.
Safety status
Fast Blanking detection on
external fast blanking pin
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
No insertion detected.
Insertion on FBext.
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
Test
Not to be used
Scanning VCO
Calibration
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
Not calibrated.
Calibrated.
FM demodulation VCO
calibration
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Not calibrated.
Calibrated.
02
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
1
1
1
1
0
0
0
1
0
0
0
1
FPLL - F0 < -300 kHz.
-300 kHz < FPLL - F0 < -60 kHz.
-60 kHz < FPLL - F0 < +60 kHz.
+60 kHz < FPLL- F0 < +300 kHz.
+300 kHz < FPLL - F0.
Digital AFC status
Sound carrier level
3
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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
0
1
0
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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
1
X
X
X
X
X
X
011110000 < Blue CO register < 100001111
and Icath locked
03
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
TQFP64
SDIP56
IC identification
Tuner AGC Output Status
(reg 1Fh, d5d4 = 00 or 01
or 11)
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Tuner AGC Output not active
Tuner AGC Output active
AVL Gain Status
(reg 1Fh, d5d4 = 10)
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
AVL Gain Max. (Low audio signal)
AVL Gain Min. (High audio signal)
55/86
STV224XH/228XH/223XH - I²C BUS SELECTION
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS
Power-On Reset is active when the power supply VCCD is 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
0
0
0
0
0
0
0
0
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
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
CVBS amplitude Typical, 2VPP.
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
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0
0
0
13
14
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0
0
0
16
17
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0
0
0
1
0
0
0
0
0
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Not active, auto cut-off.
Not active, auto cut-off.
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
STV224XH/228XH/223XH - 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
X
X
X
X
X
X
X
X
X
X
0
X
X
011
L/L' mode
WR01 d5
0
0
0
Positive/Negative Modulation
WR01 d4
0
0
0
0
FM/AM Output Selection
WR04 d5
0
0
0
0
00000
1
Bell Filter
WR11 d4:0
X
X
X
X
X
00000
00000
QSS/Intercarrier Application
WR06 d6
X
X
X
X
1
1
QSS and AM defeat
WR04 d6
1
AGC SIF Time Constant
WR06 d3 & WR1E d4
X
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
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
8 INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 20. Ground and Supply Voltages
VCCD (5 V)
Pin 53 (SDIP56)
VCCIF (5 V)
Pin 12 (SDIP56)
VCC2 (8 V)
Pin 17 (SDIP56)
VCC1 (8 V)
Pin 45 (SDIP56)
GNDD
Pin 54 (SDIP56)
GNDIF
Pin 10 (SDIP56)
GND1
Pin 43 (SDIP56)
GND2
Pin 19 (SDIP56)
Figure 21. Main Audio Output
VCC2 (8V)
AUDIOOUT
Pin 55 (SDIP56)
50 ꢀ
GNDIF
GNDIF GNDIF
GNDIF
58/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 22. Scanning PLL Filter
VCC1
VCC1(8 V)
SLPF
Pin 50 (SDIP56)
VREF
GND1
VCC1
VCC1
59/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 23. I²C Bus Data Input
VCCD (5V)
5 V
SDA
Pin 52 (SDIP56)
10 kꢀ
GNDD
GNDD
GNDD
Figure 24. I²C Bus Clock Input
VCCD (5V)
5 V
SCL
Pin 51 (SDIP56)
10 kꢀ
GNDD
GNDD
60/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 25. FM Demodulation Capacitor
VCCIF (5V)
FMCAP
Pin 56 (SDIP56)
GNDIF
GNDIF
GNDIF
VCCIF (5V)
GNDIF
50 ꢀ
GNDIF
GNDIF
GNDIF
GNDIF
Figure 26. IF Inputs
VCCIF (5V)
SIFIN2
Pin 2 (SDIP56)
SIFIN1
Pin 1 (SDIP56)
PIFIN2
Pin 7 (SDIP56)
PIFIN1
Pin 6 (SDIP56)
GNDIF
GNDIF
GNDIF
2.5 V
61/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 27. AGC SIF Capacitor
VCCIF (5V)
GNDIF
AGCSIFCAP
Pin 3 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
Figure 28. Voltage Reference Filtering
VCCIF (5V)
VREFIF
Pin 4 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
62/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 29. AGC PIF Capacitor
VCCIF (5V)
GNDIF
GNDIF
GNDIF
AGCPIFCAP
Pin 5 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
GNDIF
Figure 30. SAW Filter Switch Output (TQFP64)
VCCIF (5V) (Pin 20 - TQFP64)
SAWSWI
(TQFP64)
15
GNDIF
63/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 31. AGC Tuner Output
VCCIF (5V)
12 V
TUNERAGCOUT
Pin 8 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
GNDIF
GNDIF
Figure 32. IF PLL Filter
VCCIF (5V)
GNDIF
IFPLL
Pin 9 (SDIP56)
GNDIF
GNDIF GNDIF
GNDIF
GNDIF
64/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 33. AM/FM Mono or Stereo Sound Carrier Output
VCC2 (8V)
AM/FMOUT/SC
Pin 11 (SDIP56)
GNDIF
GNDIF
Figure 34. Internal CVBS Output
VCC2 (8V)
V
CCIF (5V)
GNDIF
INTCVBSOUT
Pin 13 (SDIP56)
GNDIF
GNDIF
GNDD
65/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 35. External Audio Input
VCCIF (5V)
EXTAUDIN
Pin 14 (SDIP56)
GNDIF
GNDIF
GNDIF
GNDIF
GNDIF
Figure 36. PIF LC Inputs
VCCIF (5 V)
PIFLC1
Pin 15 (SDIP56)
GNDIF
GNDIF
PIFLC2
Pin 16 (SDIP56)
GNDIF
GNDIF
GNDIF
66/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 37. CVBS Video Inputs
VCC1 (8 V)
CVBSIN1
Pin 18 (SDIP56)
GND1
CVBSIN2
Pin 20 (SDIP56)
GND2
GND1
GND1
GND1
GND1
Figure 38. Black Stretch Capacitor
VCC2 (8 V)
BS
Pin 21 (SDIP56)
GND2
GND2
GND2
GND2
67/86
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 39. RGB & YCrCb External Video Inputs
VCC2 (8 V)
BEXT/CB
Pin 25 (SDIP56)
GEXT/Y
Pin 26 (SDIP56)
REXT/CR
Pin 27 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2
Figure 40. External Fast Blanking Input
VCC2 (8 V)
VCCD (5 V)
FBEXT
Pin 28 (SDIP56)
GND2
GND2
GND2 GND2
GND2 GND2 GND2
GND2
GND2
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 41. Y/CVBS External Input
VCC1 (8 V)
GND1
GND1
GND1
GND1
Y/CVBSIN3
Pin 22 (SDIP56)
GND2
GND1
GND1
Figure 42. Chroma (SVHS) Input
VCC1 (8 V)
CHR
Pin 23 (SDIP56)
GND1
GND1
GND1
GND2
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 43. Automatic RGB Peak Regulation
VCC2 (8 V)
APR
Pin 24 (SDIP56)
GND2
GND2
GND2
Figure 44. RGB Outputs
VCC2 (8 V)
BOUT
Pin 30 (SDIP56)
GOUT
Pin 31 (SDIP56)
ROUT
Pin 32 (SDIP56)
GND2
GND2
GND2
GND2
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 45. Cathode Current Measurement Input
VCC2 (8 V)
ICATH
GND2
GND2
GND2
Pin 33 (SDIP56)
GND2
GND2
GND2
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 46. OSD RGB Inputs
VCC2 (8 V)
BOSD
Pin 34 (SDIP56)
GOSD
Pin 35 (SDIP56)
ROSD
Pin 36 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 47. Half Contrast Input
VCC2 (8 V)
FBOSD/HC
GND2
Pin 37 (SDIP56)
GND2
GND2
GND2
GND2
GND2
Figure 48. 3.5X MHz Crystal or Bell Filter Tuning Capacitor
VCCD (5 V)
VCC1 (8 V)
XTAL3/BTUN
Pin 38 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
GND1
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 49. 4.43/3.5X MHz Crystal
VCCD (5 V)
VCC1 (8 V)
XTAL1
Pin 40 (SDIP56)
XTAL2
Pin 39 (SDIP56)
GND1
GND1
GND1
Figure 50. Chroma PLL Filter
VCCD (5 V)
V
CC1 (8 V)
CPLF
Pin 41 (SDIP56)
GND1
GND1 GND1
GND1
GND1 GND1 GND1
GND1
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 51. XTAL1 Control Pin, Vert. Amplitude DAC Output and Chroma Reference Signal Output
VCC1 (8 V)
X1/VAMP¨/CHROUT
Pin 42 (SDIP56)
GND1
GND1
GND1
GND1 GND1
VCC1 (8 V)
GND1
Figure 52. NTBC or Main CVBS Video Switch Output
NTBC/CVBSOUT1
Pin 29 (SDIP56)
GND1 GND1 GND1
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 53. Second CVBS Video Switch Output
VCC1 (8 V)
CVBSOUT2
Pin 44 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
Figure 54. Beam Current Limiter Control Voltage and Safety Input
VCC1 (8 V)
GND1
GND1
BCL/SAF
Pin 46 (SDIP56)
GND1
GND1
GND1GND1
GND1
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 55. Vertical Output Pulse
VCC1 (8 V)
VERT
Pin 47 (SDIP56)
GND1
GND1
GND1
GND1
Figure 56. Horizontal Output Pulse
VCC1 (8 V)
GND1
HOUT
Pin 48 (SDIP56)
GND1
GND1
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STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 57. Line Flyback Input and Super-Sandcastle Output
VCC1 (8 V)
GND1
LFB/SSC
Pin 49 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
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STV224XH/228XH/223XH - APPLICATION DIAGRAMS
9 APPLICATION DIAGRAMS
Figure 58. STV2246H
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STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 59. STV2247H
I
CATH
GND
ROUT
GOUT
BOUT
V
CC
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STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 60. STV2248H
I
CATH
GND
ROUT
GOUT
BOUT
V
CC
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STV224XH/228XH/223XH - 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
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STV224XH/228XH/223XH - 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 RthJA given 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 RthJA may 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, RthJA may 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: RthJP ~ 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 + RthJA * Pd = 125°C.
Case temperature: Tc = Tj - RthJC * Pd = 112°C.
Pins temperature: Tp = Tj - RthJP * Pd = 99°C.
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STV224XH/228XH/223XH - SUMMARY OF CHANGES
11 SUMMARY OF CHANGES
Rev.
Main Changes
Date
1.0 First Issue.
15 Apr 2003
05 Feb 2004
09 Apr 2004
21 Apr 2004
2.0 Added TQFP64, STV223XH version.
2.1 TQFP64 thermal and mechanical data added, other minor corrections.
2.2 Minor corrections, typos, alignment etc.
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STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
12 GENERAL PACKAGE INFORMATION
12.1 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
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STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
Notes:
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
„2004 STMicroelectronics - All Rights Reserved.
2
2
Purchase of I C Components by STMicroelectronics conveys a license under the Philips I C Patent. Rights to use these components in an
2
2
I C system is granted provided that the system conforms to the I C Standard Specification as defined by Philips.
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