TDA9881HN_技术文档

TDA9881

Alignment-free vision and FM sound IF PLL demodulator for

negative modulated TV standards

Rev. 01 — 16 November 2004

Product data sheet

1. General description

The TDA9881 is an alignment-free multistandard (PAL and NTSC) vision and sound

IF signal PLL demodulator for negative modulation, including Quasi Split Sound (QSS) or

intercarrier FM processing.

2. Features

■ 5 V supply voltage

■ Gain controlled wideband Vision Intermediate Frequency (VIF) ampliﬁer; AC-coupled

■ Multistandard true synchronous demodulation for negative modulated standards with

active carrier regeneration: very linear demodulation, good intermodulation ﬁgures,

reduced harmonics and excellent pulse response

■ Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free, frequencies

switchable via logic pin VIF0 and pin QSSO with resistor

■ Digital acquisition help circuit, VIF frequencies of 38.0 MHz, 38.9 MHz, 45.75 MHz and

58.75 MHz

■ 4 MHz reference frequency input signal from Phase-Locked Loop (PLL) tuning system

or operating as crystal oscillator

■ VIF Automatic Gain Control (AGC) detector for gain control; operating as peak sync

detector

■ VIF AGC monitor output at pin VAGC

■ Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit

digital-to-analog converter

■ TakeOver Point (TOP) adjustable with potentiometer

■ Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz;

controlled by FM PLL oscillator

■ Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode; PLL

controlled

■ SIF AGC for gain controlled SIF ampliﬁer; single reference QSS mixer able to operate

in high performance single reference QSS mode or in intercarrier mode; switchable via

SIF input pins

■ Alignment-free selective FM PLL demodulator with high linearity and low noise.

3. Applications

■ TV, VTR, PC and Set-Top Box (STB) applications.

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

4. Quick reference data

Table 1:

Symbol

V_P

Quick reference data

Parameter

Conditions

Min

4.5

52

Typ

5.0

63

Max

5.5

70

Unit

V

[1] [2]

supply voltage

supply current

I_P

mA

Video part

V_i(VIF)(rms)

VIF input voltage sensitivity

(RMS value)

−1 dB video at output

-

60

100

µV

G_VIF(cr)

f_VIF

VIF gain control range

see Figure 6

see Table 4

60

-

66

-

dB

vision carrier operating

frequencies

38.0

38.9

45.75

58.75

±2.3

MHz

-

∆f_VIF

VIF frequency window of digital related to f_VIF

;

-

acquisition help

see Figure 9

V_{o(video)(p-p)}

video signal output voltage

(peak-to-peak value)

see Figure 4

1.7

2.0

2.3

V

[3]

G_dif

differential gain

“CCIR 330”; B/G standard

“CCIR 330”

-

5

4

-

%

ϕ_dif

differential phase

-

2

deg

MHz

dB

[4]

B_{video(−3dB)(trap)}−3 dB video bandwidth

f_trap= 4.5 MHz

f_trap= 5.5 MHz

f_trap= 6.0 MHz

f_trap= 6.5 MHz

M/N standard

3.95

4.90

5.40

5.50

26

4.05

5.00

5.50

5.95

36

including sound carrier trap

-

α_SC1

trap attenuation at ﬁrst sound

carrier

-

B/G standard

26

36

-

dB

[5]

[6]

S/N_W(video)

weighted signal-to-noise ratio weighted in accordance

55

-

dB

of video signal

with “CCIR 567”;

see Figure 10

PSRR_CVBS

power supply ripple rejection at f_ripple= 70 Hz;

20

25

-

dB

pin CVBS

see Figure 5

AFC_stps

AFC control steepness

deﬁnition: ∆I_AFC/∆f_VIF

0.85

1.05

1.25

µA/kHz

Audio part

V_o(AF)(rms)

AF output voltage (RMS value) 27 kHz FM deviation;

430

-

540

0.15

100

650

0.50

-

mV

%

50 µs de-emphasis

THD

total harmonic distortion of

audio signal

FM: 27 kHz FM deviation;

50 µs de-emphasis

B_AF(−3dB)

−3 dB AF bandwidth

without de-emphasis;

dependent on FM PLL

ﬁlter

80

kHz

S/N_W(AF)

weighted signal-to-noise ratio FM: 27 kHz FM deviation;

52

40

56

46

-

dB

of audio signal

50 µs de-emphasis; vision

carrier unmodulated

α_AM(sup)

AM suppression of

FM demodulator

50 µs de-emphasis;

AM: f = 1 kHz and

m = 54 %; referenced to

27 kHz FM deviation

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

2 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 1:

Quick reference data …continued

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PSRR_FMSO

power supply ripple rejection

on pin FMSO

FM: f_ripple= 70 Hz;

see Figure 5

14

20

-

dB

V_o(intc)(rms)

IF intercarrier output level

(RMS value)

QSS mode; SC₁; SC₂off

90

-

140

75

210

-

mV

[7]

[8]

intercarrier mode;

PC/SC₁= 20 dB; SC₂off

Reference frequency

f_ref

reference signal frequency

-

4

-

MHz

mV

V_ref(rms)

reference signal voltage

(RMS value)

operation as input

terminal

80

400

[1] Values of video and sound parameters can be decreased at V_P= 4.5 V.

[2] The time constant (R × C) at the supply must be > 1.2 µs (e.g. 1 Ω and 2.2 µF).

[3] Condition: luminance range (5 steps) from 0 % to 100 %.

[4] AC load: C_L< 20 pF and R_L> 1 kΩ. The sound carrier frequencies (depending on the TV standard) are attenuated by the integrated

sound carrier traps (see Figure 12 to Figure 17; H(s) is the absolute value of the transfer function).

[5] S/N_W(video)is the ratio of the black-to-white amplitude to the black level noise voltage (RMS value measured on pin CVBS). B = 5 MHz

(B/G, I and D/K standard). Noise analyzer setting: 200 kHz high-pass and SC-trap switched on.

[6] Conditions: video signal, grey level and negative modulation.

[7] The intercarrier output signal at pin QSSO can be calculated by the following formula taking into account the internal video signal with

1.1 V (p-p) as a reference:

V

i(SC)

(dB) + 6 dB ± 3 dB

----------------

V

i(PC)

-----------------------------------------------------------------

1

20

V_o(intc)= 1.1 V (p-p) ×

× 10

(RMS)

---------

2 2

V

1

where:

is the correction term for RMS value, ^i(SC)(dB) is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is

---------

---------------

V_i(PC)

2 2

the correction term of internal circuitry and ± 3 dB is the tolerance of video output and intercarrier output V_o(intc)(rms)

.

[8] Pin REF is able to operate as a 1-pin crystal oscillator input as well as an external reference signal input, e.g. from the tuning system.

5. Ordering information

Table 2:

Ordering information

Type number

Package

Name

Description

Version

TDA9881TS

TDA9881HN

SSOP24

HVQFN32

plastic shrink small outline package; 24 leads; body width 5.3 mm

SOT340-1

SOT617-3

plastic thermal enhanced very thin quad ﬂat package; no leads;

32 terminals; body 5 × 5 × 0.85 mm

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

3 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

7. Pinning information

7.1 Pinning

terminal 1

index area

1

2

24

23

22

21

20

19

18

17

16

15

14

13

VIF1

VIF2

SIF2

SIF1

VAGC

AFC

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

i.c.

FMPLL

DEEM

AFD

VAGC

AFC

3

i.c.

4

FMPLL

DEEM

AFD

V

P

5

V

P

VPLL

TDA9881HN

6

VPLL

DGND

n.c.

AGND

n.c.

TDA9881TS

7

DGND

FMSO

TOP

AGND

CVBS

AMUTE0

REF

8

FMSO

TOP

CVBS

AMUTE0

9

10

11

12

FM1

FM0

TAGC

VIF0

QSSO

001aab344

001aab340

Transparent top view

Fig 2. Pin conﬁguration for SSOP24.

Fig 3. Pin conﬁguration for HVQFN32.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

5 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

7.2 Pin description

Table 3:

Symbol Pin

TDA9881TS TDA9881HN

Pin description

Description

VIF1

VIF2

n.c.

1

30

31

32

1

VIF differential input 1

VIF differential input 2

not connected

2

-

i.c.

3

internally connected; leave open

FM PLL for loop ﬁlter

FMPLL

DEEM

AFD

4

2

5

3

de-emphasis output for capacitor

AF decoupling input for capacitor

digital ground

6

4

DGND

n.c.

7

5

-

6

not connected

FMSO

TOP

8

7

FM sound output

9

8

tuner AGC TakeOver Point (TOP) for resistor adjustment

FM IF select bit 1

FM1

10

11

12

9

FM0

10

11

FM IF select bit 0

QSSO

single reference QSS output and vision IF select bit 1

with resistor

n.c.

-

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

not connected

n.c.

-

not connected

VIF0

TAGC

REF

13

14

15

vision IF select bit 0

tuner AGC output

4 MHz crystal or reference signal input

auto mute select bit 0

composite video output

not connected

AMUTE0 16

CVBS

n.c.

17

-

AGND

VPLL

V_P

18

19

20

21

22

-

analog ground

VIF PLL for loop ﬁlter

supply voltage

AFC

VAGC

n.c.

AFC output

vision AGC output

not connected

SIF1

SIF2

n.c.

23

24

-

SIF differential input 1 and intercarrier mode select

SIF differential input 2 and intercarrier mode select

not connected

n.c.

-

not connected

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

6 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

8. Functional description

A simpliﬁed block diagram of the device is illustrated in Figure 1. The device contains the

following functional blocks:

1. VIF ampliﬁer

2. Tuner AGC and VIF AGC

3. VIF AGC detector

4. Frequency Phase-Locked Loop (FPLL) detector

5. VCO and divider

6. AFC and digital acquisition help circuit

7. Video demodulator and ampliﬁer

8. Sound carrier trap

9. SIF ampliﬁer

10.SIF AGC detector

11.Single reference QSS mixer

12.FM demodulator and acquisition help circuit

13.Audio ampliﬁer and mute time constant

14.Internal voltage stabilizer

15.Logic.

8.1 VIF ampliﬁer

The VIF ampliﬁer consists of three AC-coupled differential stages. Gain control is

performed by emitter degeneration. The total gain control range is typical 66 dB. The

differential input impedance is typical 2 kΩ in parallel with 3 pF.

8.2 Tuner AGC and VIF AGC

This block adapts the voltage, generated at the VIF AGC detector, to the internal signal

processing at the VIF ampliﬁer and performs the tuner AGC control current generation.

The onset of the tuner AGC control current generation can be set by a potentiometer at

pin TOP.

8.3 VIF AGC detector

Gain control is performed using sync level detection.

The sync level voltage is stored in an integrated capacitor by means of a fast peak

detector. This voltage is compared with a reference voltage (nominal sync level) by a

comparator which charges or discharges the integrated AGC capacitor to generate the

VIF gain. The time constants for decreasing or increasing the gain are nearly equal and

the total AGC reaction time is fast, to cope with ‘aeroplane ﬂuttering’.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

7 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

8.4 FPLL detector

The VIF ampliﬁer output signal is fed to a frequency detector and a phase detector via a

limiting ampliﬁer to remove the video AM.

During acquisition the frequency detector produces a current that is proportional to the

frequency difference between the VIF and the VCO signal. After frequency lock-in the

phase detector produces a current that is proportional to the phase difference between

the VIF and the VCO signal. The currents from the frequency and phase detector are

charged into the loop ﬁlter which controls the VIF VCO and locks it to the frequency and

phase of the VIF carrier.

8.5 VCO and divider

The VCO of the VIF FPLL operates as an integrated low radiation relaxation oscillator at

twice the picture carrier frequency. The control voltage, required to tune the VCO to

actually double the picture carrier frequency, is generated at the loop ﬁlter by the

frequency phase detector. The possible frequency range is 50 MHz to 140 MHz (typical

value).

The oscillator frequency is divided-by-two to provide two differential square wave signals

with exactly 90 degrees phase difference, independent of the frequency, for use in the

FPLL detectors, the video demodulator and the single reference QSS or intercarrier mixer.

8.6 AFC and digital acquisition help circuit

Each relaxation oscillator of the VIF PLL and FM PLL demodulator has a wide frequency

range. To prevent false locking of the PLLs, with respect to the catching range, the digital

acquisition help circuit provides an individual control until the frequency of the VCO is

within the preselected standard dependent lock-in window of the PLL.

The VIF carrier frequencies 38.0 MHz, 38.9 MHz (M/N, B/G, I and D/K standard) and

45.75 MHz, 58.75 MHz (NTSC standard) can be selected via pin VIF0 and pin QSSO with

resistor; see Table 4.

The FM carrier frequencies can be selected via pin FM0 and pin FM1; see Table 5.

The in-window and out-window control at the FM PLL can additionally be used to mute the

audio stage (if auto mute is selected via pin AMUTE0); see Table 6.

The principle working of the digital acquisition help circuit is as follows: The PLL VCO

output is connected to a downcounter which has a predeﬁned start value (standard

dependent). The VCO frequency clocks the downcounter for a ﬁxed gate time. Thereafter,

the downcounter stop value is analyzed. In the event that the stop value is higher (lower)

than the expected value range, the VCO frequency will be lower (higher) than the required

lock-in window frequency range. A positive (negative) control current is injected into the

PLL loop ﬁlter which causes the VCO frequency to be increased (decreased) and a new

counting cycle starts.

The gate time as well as the control logic of the acquisition help circuit is dependent on the

precision of the reference signal at pin REF. Operation as a crystal oscillator is possible as

well as connecting this input via a serial capacitor to an external reference frequency e.g.

the tuning system oscillator.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

8 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

The AFC signal is derived from the corresponding downcounter stop value after a

counting cycle. The last four bits are latched and the digital-to-analog converted value is

given as current at pin AFC.

8.7 Video demodulator and ampliﬁer

The video demodulator is realized by a multiplier which is designed for low distortion and

large bandwidth. The VIF signal is multiplied with the ‘in phase’ signal of the VIF PLL

VCO.

The demodulator output signal is fed into the video preampliﬁer via a level shift stage with

integrated low-pass ﬁlter to achieve carrier harmonics attenuation.

The output signal of the preampliﬁer is fed to the VIF AGC detector (see Section 8.3) and

in the sound trap mode is also fed internally to the integrated sound carrier trap;

see Section 8.8. The differential trap output signal is converted and ampliﬁed by the

following postampliﬁer. The video output level at pin CVBS is 2 V (p-p).

Noise clipping is provided.

8.8 Sound carrier trap

The sound carrier trap consists of a reference ﬁlter, a phase detector and the sound trap

itself.

A sound carrier reference signal is fed into the reference low-pass ﬁlter and is shifted by

nominal 90 degrees. The phase detector compares the original reference signal with the

signal shifted by the reference ﬁlter and produces a DC voltage by charging or discharging

an integrated capacitor with a current proportional to the phase difference between both

signals, respectively to the frequency error of the integrated ﬁlters. The DC voltage

controls the frequency position of the reference ﬁlter and the sound trap. Thus the

accurate frequency position for the different standards is set by the sound carrier

reference signal.

The sound trap itself is constructed of three separate traps to realize sufﬁcient

suppression of the ﬁrst and second sound carrier.

8.9 SIF ampliﬁer

The SIF ampliﬁer consists of three AC-coupled differential stages. Gain control is

performed by emitter degeneration. The total gain control range is typical 66 dB. The

differential input impedance is typical 2 kΩ in parallel with 3 pF.

8.10 SIF AGC detector

SIF gain control is performed by the detection of the SIF voltage at the output of the SIF

ampliﬁer so that a constant SIF signal is supplied to the single reference QSS mixer.

For an optimum adaption between the SIF AGC and the VIF AGC characteristics at 13 dB

picture-to-sound FM carrier ratio, the internal SIF level is reduced.

The integrated AGC capacitor is charged or discharged for the generation of the required

SIF gain via a comparator. An additional circuit (threshold approximately 7 dB) ensures a

very fast gain reduction for a large increasing IF amplitude step.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

9 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

8.11 Single reference QSS mixer

With the present system high performance Hi-Fi stereo sound processing can be

achieved. For a simpliﬁed application without an SIF SAW ﬁlter, the single reference QSS

mixer can be switched to the intercarrier mode via pins SIF1 and SIF2; see Table 7.

The single reference QSS mixer generates the 2nd FM TV sound intercarrier signal. It is

realized by a linear multiplier which multiplies the SIF ampliﬁer output signal and the

VIF PLL VCO signal which is locked to the picture carrier. In this way the QSS mixer

operates as a quadrature mixer in the intercarrier mode and provides suppression of the

low frequency video signals.

The QSS mixer output signal is fed internally via a high-pass and low-pass combination to

the FM demodulator as well as via an operational ampliﬁer to the QSS output pin QSSO.

8.12 FM demodulator and acquisition help circuit

The narrow-band FM PLL detector consists of:

• Gain controlled FM ampliﬁer and AGC detector

• Narrow-band PLL.

The intercarrier signal from the single reference QSS mixer is fed to the input of an

AC-coupled gain controlled ampliﬁer with two stages. The gain controlled output signal is

fed to the phase detector of the narrow-band FM PLL (FM demodulator). For good

selectivity and robustness against disturbance caused by the video signal, a high linearity

of the gain controlled FM ampliﬁer and of the phase detector as well as a constant signal

level are required. The gain control is done by means of an ‘in phase’ demodulator for the

FM carrier (from the output of the FM ampliﬁer). The demodulation output is fed into a

comparator for charging or discharging the integrated AGC capacitor. This leads to a

mean value AGC loop to control the gain of the FM ampliﬁer.

The FM demodulator is realized as a narrow-band PLL with an external loop ﬁlter, which

provides the necessary selectivity (bandwidth approximately 100 kHz). To achieve good

selectivity, a linear phase detector and a constant input level are required. The gain

controlled intercarrier signal from the FM ampliﬁer is fed to the phase detector. The phase

detector controls, via the loop ﬁlter, the integrated low radiation relaxation oscillator. The

designed frequency range is from 4 MHz to 7 MHz.

The VCO within the FM PLL is phase-locked to the incoming 2nd SIF signal which is

frequency modulated. The VCO control voltage is superimposed by the AF voltage.

Therefore, the VCO tracks with the FM of the 2nd SIF signal. Thus, the AF voltage is

present at the loop ﬁlter and is typically 5 mV (RMS) for 27 kHz FM deviation. This

AF signal is fed via a buffer to the audio ampliﬁer.

The correct locking of the PLL is supported by the digital acquisition help circuit; see

Section 8.6.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

10 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

8.13 Audio ampliﬁer and mute time constant

The audio ampliﬁer consists of two parts:

• AF preampliﬁer

• AF output ampliﬁer.

The AF preampliﬁer used for FM sound is an operational ampliﬁer with internal feedback,

high gain and high common mode rejection. The AF voltage from the PLL demodulator is

5 mV (RMS) for a frequency deviation of 27 kHz and is ampliﬁed by 30 dB. By using a

DC operating point control circuit (with external capacitor C_AF), the AF preampliﬁer is

decoupled from the PLL DC voltage. The low-pass characteristic of the ampliﬁer reduces

the harmonics of the sound intercarrier signal at the AF output terminal.

For FM sound a switchable de-emphasis network (with external capacitor) is implemented

between the preampliﬁer and the output ampliﬁer. The de-emphasis time constant with

50 µs or 75 µs depends on the FM carrier selection via pins FM0 and FM1; see Table 5.

The AF output ampliﬁer provides the required AF output level by a rail-to-rail output stage.

A preceding stage makes use of an input selector for switching between the FM sound

and mute state.

Switching to the mute state is controlled automatically, depending on the digital acquisition

help circuit should the VCO of the FM PLL not be in the required frequency window. This

is done by a time constant: fast for switching to the mute state and slow (typically 40 ms)

for switching to the non-mute state.

Auto mute can be disabled via pin AMUTE0; see Table 6.

8.14 Internal voltage stabilizer

The band gap circuit internally generates a voltage of approximately 2.4 V, independent of

the supply voltage and the temperature. A voltage regulator circuit, connected to this

voltage, produces a constant voltage of 3.55 V which is used as an internal reference

voltage.

8.15 Logic

The logic circuit detects the logic level at the logic ports VIF0, QSSO, FM0, FM1 and

AMUTE0 and controls the internal functions; see Table 4 to Table 6. In the event that all

logic ports are open-circuit (high-ohmic or CMOS HIGH level) TV standard NTSC with a

vision carrier frequency of 45.75 MHz, an FM sound carrier frequency of 4.5 MHz,

de-emphasis with 75 µs time constant and auto mute on is selected.

Table 4:

QSSO

VIF frequency selection

VIF0

VIF frequency (MHz)

No resistor at pin

pin open-circuit

45.75

38.9

pin connected to ground

2.2 kΩ resistor to ground at pin pin open-circuit

58.75

38.0

2.2 kΩ resistor to ground at pin pin connected to ground

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

11 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 5:

FM0

FM carrier frequency selection and de-emphasis settings

FM1

FM carrier frequency De-emphasis (µs)

(MHz)

Pin open-circuit

pin open-circuit

4.5

5.5

75

50

Pin connected to

ground

Pin open-circuit

pin connected to

ground

6.0

6.5

50

Pin connected to

ground

pin connected to

ground

Table 6:

Auto mute on/off selection

AMUTE0

Auto mute

Pin open-circuit

on

off

Pin connected to ground

Table 7:

Sound carrier mode

SIF1 and SIF2

Sound mode

QSS mode

No DC path to ground

One or both pins connected to ground

intercarrier mode

9. Limiting values

Table 8:

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

V_P

Parameter

supply voltage

voltage on

Conditions

Min

Max

Unit

-

5.5

V

V_n

all pins except AGND,

DGND and TAGC

0

V_P

V

pin TAGC

0

-

8.8

10

V

s

t_sc

short-circuit time to ground

or V_P

T_stg

storage temperature

−25

+150

°C

T_amb

ambient temperature

TDA9881TS (SSOP24)

TDA9881HN (HVQFN32)

−20

-

+70

°C

V

+85

[1]

[2]

V_esd

electrostatic discharge

voltage

human body

model

±4000

machine model

-

±400

V

[1] Class 3A according to JESD22-A114-B.

[2] Class C according to EIA/JESD22-A115-A.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

12 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

10. Thermal characteristics

Table 9:

Symbol

R_th(j-a)

Thermal characteristics

Parameter

Conditions

Typ

Unit

thermal resistance from junction to ambient

TDA9881TS (SSOP24)

in free air

105

40

K/W

TDA9881HN (HVQFN32)

11. Characteristics

Table 10: Characteristics

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply; pin V_P

[1]

V_P

supply voltage

4.5

52

-

5.0

63

5.5

70

V

I_P

supply current

mA

mW

P_tot

total power dissipation

305

385

Power-on reset

V_P(start)

supply voltage for start of decreasing supply

reset voltage

2.5

-

3.0

3.5

4.4

-

V

V_P(stop)

supply voltage for end of increasing supply

-

V

reset

voltage

τ_P

time constant (R × C) for

1.2

µs

network at pin V_P

VIF ampliﬁer; pins VIF1 and VIF2

V_i(VIF)(rms)

V_i(max)(rms)

V_i(ovl)(rms)

∆V_IF(int)

VIF input voltage

sensitivity (RMS value)

−1 dB video at output

-

60

190

-

100

µV

mV

dB

maximum input voltage

(RMS value)

+1 dB video at output

150

-

[2]

overload input voltage

(RMS value)

-

440

-

internal IF amplitude

difference between

within AGC range;

∆f = 5.5 MHz

0.9

picture and sound carrier

G_VIF(cr)

VIF gain control range

see Figure 6

60

-

66

15

-

dB

B_{VIF(−3dB)(ll)}

lower limit −3 dB VIF

MHz

bandwidth

B_{VIF(−3dB)(ul)}

R_i(dif)

upper limit −3 dB VIF

bandwidth

-

80

2

-

MHz

kΩ

pF

[3]

differential input

resistance

C_i(dif)

differential input

capacitance

3

V_I

DC input voltage

1.93

V

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

13 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

FPLL and true synchronous video demodulator^[4]

f_VCO(max)

maximum oscillator

frequency for carrier

regeneration

f = 2f_PC

120

140

-

MHz

f_VIF

vision carrier operating

frequencies

see Table 4

-

38.0

-

MHz

38.9

45.75

58.75

±2.3

∆f_VIF

VIF frequency window of related to f_VIF;

digital acquisition help

see Figure 9

[5]

t_acq

acquisition time

BL = 70 kHz

-

30

ms

V_i(lock)(rms)

input voltage sensitivity

for PLL to be locked

(RMS value)

measured on pins VIF1

and VIF2; maximum

IF gain

50

100

µV

T_cy(DAH)

cycle time of digital

acquisition help

-

64

-

µs

K_O(VIF)

K_D(VIF)

VIF VCO steepness

deﬁnition: ∆f_VIF/∆V_VPLL

deﬁnition: ∆I_VPLL/∆ϕ_VIF

-

20

23

-

MHz/V

VIF phase detector

steepness

µA/rad

Video output 2 V; pin CVBS; sound carrier on

V_o(p-p)

video output voltage

(peak-to-peak value)

see Figure 4

1.7

2.0

2.3

V

V/S

ratio between video

(black-to-white) and sync

level

1.90

2.33

3.00

V_sync

sync voltage level

1.0

1.2

1.4

-

V

V_clip(u)

upper video clipping

voltage level

V_P− 1.1

V_P− 1

V_clip(l)

lower video clipping

voltage level

-

0.7

0.9

V

[3]

R_o

output resistance

-

30

-

Ω

I_bias(int)

internal DC bias current

for emitter-follower

1.5

2.0

mA

I_o(sink)(max)

I_{o(source)(max)}

∆V_o(CVBS)

maximum AC and DC

output sink current

1

-

mA

maximum AC and DC

output source current

3.9

deviation of CVBS output 50 dB gain control

voltage

-

0.5

0.1

2

dB

%

30 dB gain control

∆V_o(bl)

black level tilt

[6]

G_dif

differential gain

“CCIR 330”;

5

%

B/G standard

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

14 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

ϕ_dif

Parameter

Conditions

Min

-

Typ

Max

Unit

deg

dB

differential phase

“CCIR 330”

2

-

4

-

[7]

S/N_W(video)

weighted signal-to-noise weighted in accordance

55

ratio

with “CCIR 567”;

see Figure 10

[7]

[8]

S/N_UW(video)

unweighted

signal-to-noise ratio

47

-

dB

α_IM(blue)

intermodulation

attenuation at ‘blue’

see Figure 11

f = 1.1 MHz

f = 3.3 MHz

see Figure 11

f = 1.1 MHz

f = 3.3 MHz

58

64

-

dB

[8]

α_IM(yellow)

intermodulation

attenuation at ‘yellow’

60

59

-

66

65

2

-

dB

mV

-

∆V_r(PC)(rms)

α_H

residual picture carrier

(RMS value)

fundamental wave and

harmonics

5

[9]

[10]

[11]

suppression of video

signal harmonics

C_L< 20 pF; R_L> 1 kΩ;

AC load

35

40

20

40

-

dB

α_spur

suppression of spurious

elements

PSRR_CVBS

power supply ripple

rejection at pin CVBS

f_ripple= 70 Hz;

see Figure 5

25

M/N standard inclusive Korea; see Figure 12

[12]

B_{v(−3dB)(trap)}

−3 dB video bandwidth

including sound carrier

trap

f_trap= 4.5 MHz

3.95

4.05

-

MHz

α_SC1

attenuation at ﬁrst sound f = 4.5 MHz

carrier

26

20

14

36

27

21

-

dB

α_SC1(60kHz)

α_SC2

attenuation at ﬁrst sound f = 4.5 MHz

carrier f_SC1± 60 kHz

attenuation at second

sound carrier

f = 4.724 MHz

α_SC2(60kHz)

attenuation at second

sound carrier

f_SC2± 60 kHz

t_d(g)(cc)

group delay at color

carrier frequency

f = 3.58 MHz;

see Figure 13

110

180

250

-

ns

B/G standard; see Figure 14

[12]

B_{v(−3dB)(trap)}

−3 dB video bandwidth

f_trap= 5.5 MHz

4.90

5.00

MHz

including sound carrier

trap

α_SC1

attenuation at ﬁrst sound f = 5.5 MHz

carrier

26

20

36

30

-

dB

α_SC1(60kHz)

attenuation at ﬁrst sound f = 5.5 MHz

carrier f_SC1± 60 kHz

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

15 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

α_SC2

attenuation at second

sound carrier

f = 5.742 MHz

20

27

-

dB

α_SC2(60kHz)

attenuation at second

sound carrier

f = 5.742 MHz

14

21

-

dB

ns

f_SC2± 60 kHz

t_d(g)(cc)

group delay at color

carrier frequency

f = 4.43 MHz;

see Figure 15

110

180

250

I standard; see Figure 16

[12]

B_{v(−3dB)(trap)}

−3 dB video bandwidth

f_trap= 6.0 MHz

5.40

5.50

-

MHz

including sound carrier

trap

α_SC1

attenuation at ﬁrst sound f = 6.0 MHz

carrier

26

20

12

10

32

26

18

15

-

dB

α_SC1(60kHz)

α_SC2

attenuation at ﬁrst sound f = 6.0 MHz

carrier f_SC1± 60 kHz

attenuation at second

sound carrier

f = 6.55 MHz

α_SC2(60kHz)

attenuation at second

sound carrier

f_SC2± 60 kHz

t_d(g)(cc)

group delay at color

carrier frequency

f = 4.43 MHz

-

90

160

-

ns

D/K standard; see Figure 17

[12]

B_{v(−3dB)(trap)}

−3 dB video bandwidth

f_trap= 6.5 MHz

5.50

5.95

MHz

including sound carrier

trap

α_SC1

attenuation at ﬁrst sound f = 6.5 MHz

carrier

26

20

18

13

32

26

24

18

-

dB

α_SC1(60kHz)

α_SC2

attenuation at ﬁrst sound f = 6.5 MHz

carrier f_SC1± 60 kHz

attenuation at second

sound carrier

f = 6.742 MHz

α_SC2(60kHz)

attenuation at second

sound carrier

f_SC2± 60 kHz

t_d(g)(cc)

group delay at color

carrier frequency

f = 4.28 MHz

-

60

130

ns

VIF AGC

[13]

t_resp(inc)

AGC response time to an 20 dB

increasing VIF step

-

4

3

-

ms

t_resp(dec)

AGC response time to a 20 dB

decreasing VIF step

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

16 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

CR_stps

control steepness

deﬁnition:

-

−80

-

dB/V

∆G_VIF/∆V_VAGC

;

V_VAGC= 2 V to 3 V

Pin VAGC

V_VAGC

gain control voltage

range

see Figure 6

0.8

-

3.5

10

V

I_o(sink)(max)

maximum output sink

current

-

µA

I_{o(source)(max)}

maximum output source

current

Tuner AGC; pin TAGC; see Figure 6 to Figure 8

V_{i(VIF)(start1)(rms)}VIF input signal voltage

for minimum starting

I

R

_TAGC= 120 µA;

_TOP= 22 kΩ

-

2

5

-

mV

point of tuner takeover at

pins VIF1 and VIF2

(RMS value)

V_{i(VIF)(start2)(rms)}VIF input signal voltage

for maximum starting

I_TAGC= 120 µA;

45

90

R

_TOP= 0 Ω

point of tuner takeover at

pins VIF1 and VIF2

(RMS value)

QV_TOP

∆QV_TOP/∆T

V_o

tuner takeover point

accuracy

I_TAGC= 120 µA;

_TOP= 10 kΩ

7

-

17

0.03

-

43

mV

dB/K

V

R

takeover point variation

with temperature

I_TAGC= 120 µA

0.07

8.8

permissible output

voltage

from external source

-

V_sat

I_sink

saturation voltage

sink current

I_TAGC= 450 µA

-

0.5

V

no tuner gain reduction;

0.75

µA

V_TAGC= 8.8 V

maximum tuner gain

reduction; V_TAGC= 1 V

450

3

600

5

750

8

µA

∆G_IF

IF slip by automatic gain tuner gain current from

dB

control

20 % to 80 %

AFC circuit; pin AFC; see Figure 9^{[14] [15]}

AFC_stps

Qf_VIF(a)

AFC control steepness

deﬁnition: ∆I_AFC/∆f_VIF

0.85

1.05

-

1.25

+20

µA/kHz

analog accuracy of AFC I_AFC= 0 A;

−20

kHz

circuit

f_REF= 4 MHz

V_sat(ul)

V_sat(ll)

upper limit saturation

voltage

V_P− 0.6

V_P− 0.3

-

V

lower limit saturation

voltage

-

0.3

0.6

I_o(source)

I_o(sink)

output source current

output sink current

160

200

240

µA

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

17 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

SIF ampliﬁer; pins SIF1 and SIF2

V_i(SIF)(rms)

V_i(max)(rms)

V_i(ovl)(rms)

SIF input voltage

sensitivity (RMS value)

−3 dB at intercarrier

output pin QSSO

-

30

70

-

70

-

µV

maximum input voltage

(RMS value)

1 dB at intercarrier

output pin QSSO

50

-

mV

[2]

overload input voltage

(RMS value)

320

G_SIF(cr)

SIF gain control range

see Figure 8

60

-

66

15

-

dB

B_{SIF(−3dB)(ll)}

lower limit −3 dB SIF

MHz

bandwidth

B_{SIF(−3dB)(ul)}

R_i(dif)

upper limit −3 dB SIF

bandwidth

-

80

2

-

MHz

kΩ

pF

[3]

differential input

resistance

C_i(dif)

differential input

capacitance

3

V_I

DC input voltage

1.93

V

SIF AGC detector

t_respAGC response time to an increasing

-

8

-

ms

increasing or decreasing

SIF step of 20 dB

decreasing

25

Single reference QSS intercarrier mixer; pin QSSO

V_o(intc)(rms)

IF intercarrier output level QSS mode;

90

-

140

75

210

-

mV

(RMS value)

SC₁; SC₂off

[16]

intercarrier mode;

PC/SC₁= 20 dB;

SC₂off

B_{intc(−3dB)(ul)}

∆V_r(SC)(rms)

∆V_r(PC)(rms)

upper limit −3 dB

intercarrier bandwidth

12

-

15

2

-

MHz

mV

residual sound carrier

(RMS value)

fundamental wave and

harmonics

5

residual picture carrier

(RMS value)

fundamental wave and

harmonics

-

2

mV

[3]

R_o

output resistance

DC output voltage

-

30

-

Ω

V_O

-

2

V

I_bias(int)

internal DC bias current

for emitter follower

0.9

1.3

-

mA

I_o(sink)(max)

I_{o(source)(max)}

I_o(source)

maximum AC output sink

current

0.6

0.8

-

mA

maximum AC output

source current

0.6

0.8

-

[17]

DC output source current QSSO = 0; see Table 4

0.75

0.93

1.20

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

18 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

[22]

FM PLL demodulator^[15]and ^[18]to

Sound intercarrier output; pin QSSO

V_FM(rms)

IF intercarrier level for

corresponding PC/SC

3.2

-

320

mV

gain controlled operation ratio at input pins VIF1

of FM PLL (RMS value)

and VIF2 is 7 dB to

47 dB

V_{FM(lock)(rms)}

V_FM(det)(rms)

f_FM

IF intercarrier level for

lock-in of PLL

(RMS value)

-

2

mV

IF intercarrier level for FM

carrier detect

(RMS value)

2.3

sound intercarrier

operating

FM frequencies

see Table 5

-

4.5

5.5

6.0

6.5

-

MHz

FM sound output; pin FMSO

V_o(AF)(rms)

AF output voltage

(RMS value)

25 kHz FM deviation;

75 µs de-emphasis

400

430

1.3

-

500

600

650

-

mV

V

27 kHz FM deviation;

50 µs de-emphasis

540

V_{o(AF)(cl)(rms)}

AF output clipping level

(RMS value)

THD < 1.5 %

1.4

∆V_o(AF)/∆T

AF output voltage

variation with

temperature

3 × 10⁻³

7 × 10⁻³

dB/K

THD

total harmonic distortion

frequency deviation

−3 dB AF bandwidth

-

0.15

-

0.50

±55

-

%

[19]

∆f_AF

THD < 1.5 %

-

kHz

B_AF(−3dB)

without de-emphasis;

measured with FM PLL

ﬁlter of Figure 21

80

100

S/N_W(AF)

weighted signal-to-noise FM PLL only;

52

56

-

dB

ratio of audio signal

27 kHz FM deviation;

50 µs de-emphasis

black picture;

see Figure 18

50

-

56

-

dB

∆V_r(SC)(rms)

residual sound carrier

(RMS value)

fundamental wave and

harmonics; without

de-emphasis

2

mV

α_AM(sup)

AM suppression of

FM demodulator

referenced to 27 kHz

FM deviation; 50 µs

de-emphasis;

40

46

-

dB

AM: f = 1 kHz;

m = 54 %

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

19 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PSRR_FM

power supply ripple

rejection

f_ripple= 70 Hz;

see Figure 5

14

20

-

dB

FM PLL ﬁlter; pin FMPLL

V_loop

DC loop voltage

1.5

-

3.3

-

V

I_{o(source)(PD)(max)}maximum phase detector

output source current

60

µA

I_{o(sink)(PD)(max)}

I_{o(source)(DAH)}

I_o(sink)(DAH)

t_W(DAH)

maximum phase detector

output sink current

-

60

55

16

64

-

µA

µs

output source current of

digital acquisition help

output sink current of

digital acquisition help

pulse width of digital

acquisition help current

T_cy(DAH)

cycle time of digital

acquisition help

K_O(FM)

K_D(FM)

VCO steepness

deﬁnition: ∆f_FM/∆V_FMPLL

deﬁnition: ∆I_FMPLL/∆ϕ_FM

-

3.3

4

-

MHz/V

phase detector

steepness

µA/rad

Audio ampliﬁer

De-emphasis network; pin DEEM

R_o

output resistance

50 µs de-emphasis;

see Table 5

4.4

6.6

-

5.0

5.6

8.4

-

kΩ

mV

V

75 µs de-emphasis;

see Table 5

7.5

V_AF(rms)

audio signal (RMS value) f_AF= 400 Hz;

_FMSO= 500 mV

170

2.37

V

V_O

DC output voltage

-

AF decoupling; pin AFD

V_dec

DC decoupling voltage

dependent on f_FM

1.5

-

3.3

V

intercarrier frequency

I_L

leakage current

∆V_O(FMSO)< ±50 mV

-

±25

nA

µA

I_ch(max)

I_dch(max)

maximum charge current

1.15

1.50

1.85

maximum discharge

current

FM sound output; pin FMSO

[3]

R_o

output resistance

-

300

Ω

V_O(FMSO)

R_L

DC output voltage

load resistance

-

2.37

-

V

AC-coupled

10

100

-

kΩ

nF

R_L(DC)

C_L

DC load resistance

load capacitance

-

1.5

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

20 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

B_{AF(−3dB)(ul)}

upper limit −3 dB

AF bandwidth of audio

ampliﬁer

150

-

kHz

[20]

B_{AF(−3dB)(ll)}

lower limit −3 dB

AF bandwidth of audio

ampliﬁer

-

20

Hz

α_mute

mute attenuation of

AF signal

via pin AMUTE0;

see Table 6

70

-

75

-

dB

∆V_jump

DC jump voltage for

activated by digital

±50

±150

mV

switching AF output to

acquisition help; auto

mute state or vice versa mute on; see Table 6

FM operation^{[21] [23]}

Intercarrier AF performance^[24]

S/N_W

weighted signal-to-noise PC/SC ratio is 21 dB to

ratio

27 dB at pins VIF1 and

VIF2

black picture

white picture

49

45

40

-

dB

6 kHz sine wave

(black-to-white

modulation)

sound carrier

35

-

dB

subharmonics;

f = 2.75 MHz ± 3 kHz

Single reference QSS AF performance ^{[25] [26]}

S/N_W(SC1)

weighted signal-to-noise VIF input sound carrier

ratio for SC₁

suppression: PC/SC₁

ratio at pins VIF1 and

VIF2 > 40 dB

black picture

white picture

51

48

42

-

dB

6 kHz sine wave

(black-to-white

modulation)

250 kHz square wave

(black-to-white

modulation)

40

43

44

-

dB

sound carrier

subharmonics;

f = 2.75 MHz ± 3 kHz

sound carrier

subharmonics;

f = 2.87 MHz ± 3 kHz

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

21 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

Table 10: Characteristics …continued

V_P= 5 V; T_amb= 25 °C; see Table 12 for input frequencies; B/G standard is used for the speciﬁcation (f_PC= 38.9 MHz;

_SC= 33.4 MHz; PC/SC = 13 dB; f_mod= 400 Hz); input level V_i(VIF)= 10 mV (RMS) (sync level for B/G); IF input from 50 Ω via

f

broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 %; video signal in accordance with “CCIR

line 17 and line 330”; measurements taken in test circuit of Figure 21; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

S/N_W(SC2)

weighted signal-to-noise VIF input sound carrier

ratio for SC₂

suppression: PC/SC₂

ratio at pins VIF1 and

VIF2 > 40 dB

black picture

white picture

46

45

41

-

dB

6 kHz sine wave

(black-to-white

modulation)

250 kHz square wave

(black-to-white

modulation)

29

42

43

-

dB

sound carrier

subharmonics;

f = 2.75 MHz ± 3 kHz

sound carrier

subharmonics;

f = 2.87 MHz ± 3 kHz

Reference frequency input; pin REF

V_I

DC input voltage

input resistance

2.3

2.6

5

2.9

-

V

[3]

R_i

-

kΩ

Ω

R_xtal

resonance resistance of operation as crystal

-

200

crystal

oscillator

[27]

[28]

[15]

C_x

pull-up or pull-down

capacitance

-

pF

f_ref

reference signal

frequency

-

4

-

MHz

%

∆f_ref

V_ref(rms)

R_o(ref)

C_K

tolerance of reference

signal frequency

-

±0.1

400

4.7

-

reference signal voltage operation as input

(RMS value)

80

-

mV

kΩ

pF

terminal

output resistance of

reference signal source

-

decoupling capacitance

to external reference

signal source

operation as input

terminal

22

100

Logic; pins FM1, FM0, VIF0 and AMUTE0; see Table 4 to Table 6

V_i

input voltage

for LOW level

for HIGH level

0

-

0.8

V_P

-

V

2.5

-

V_i(open)

R_i

free-running voltage

pin open-circuit;

I_i< 0.1 µA

V_P

internal pull-up

resistance

37.5

-

62.5

kΩ

[1] Values of video and sound parameters can be decreased at V_P= 4.5 V.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

22 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

[2] Level headroom for input level jumps during gain control setting.

[3] This parameter is not tested during the production and is only given as application information for designing the receiver circuit.

[4] Loop bandwidth BL = 70 kHz (damping factor d = 1.9; calculated with sync level within gain control range). Calculation of the VIF PLL

ﬁlter can be done by use of the following formula:

1

2π

BL_–3dB

=

K K R , valid for d ≥ 1.2

------

O

D

1

2

d = R K K C ,

--

O

D

where:

rad

-------

V

Hz

------

V

µA

-------

rad

K_Ois the VCO steepness

or 2π

; K_Dis the phase detector steepness

;

R is the loop resistor; C is the loop capacitor; BL_−3dBis the loop bandwidth for −3 dB; d is the damping factor.

_i(VIF)= 10 mV (RMS); ∆f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video modulation.

[5]

V

[6] Condition: luminance range (5 steps) from 0 % to 100 %.

[7] S/N_W(video)is the ratio of black-to-white amplitude to the black level noise voltage (RMS value measured on pin CVBS). B = 5 MHz (B/G,

I and D/K standard). Noise analyzer setting: 200 kHz high-pass and SC-trap switched on.

[8] The intermodulation ﬁgures are deﬁned for:

V₀at 4.4 MHz

a) f = 1.1 MHz (referenced to black and white signal) as α _IM= 20 log

+ 3.6 dB

-----------------------------------

V₀at 1.1 MHz

V₀at 4.4 MHz

b) f = 3.3 MHz (referenced to color carrier) as α _IM= 20 log

-----------------------------------

V₀at 3.3 MHz

[9] Modulation Vestigial Side-Band (VSB); sound carrier off; f_video> 0.5 MHz. Measurements taken with SAW ﬁlter M1963M (sound shelf:

20 dB); loop bandwidth BL = 70 kHz.

[10] Sound carrier on; f_video= 10 kHz to 10 MHz. Measurements taken with SAW ﬁlter M1963M (sound shelf: 20 dB); loop bandwidth

BL = 70 kHz.

[11] Conditions: video signal, grey level and negative modulation.

[12] AC load; C_L< 20 pF and R_L> 1 kΩ. The sound carrier frequencies (depending on TV standard) are attenuated by the integrated sound

carrier traps (see Figure 12 to Figure 17; H(s) is the absolute value of transfer function).

[13] The response time is valid for a VIF input level range from 200 µV to 70 mV.

[14] To match the AFC output signal to different tuning systems a current source output is provided. The test circuit is given in Figure 9. The

AFC slope (voltage per frequency) can be changed by resistors R1 and R2.

[15] The tolerance of the reference frequency determines the accuracy of the VIF AFC, FM demodulator center frequency and maximum

FM deviation.

[16] The intercarrier output signal at pin QSSO can be calculated by the following formula taking into account the internal video signal with

1.1 V (p-p) as a reference:

V

i(SC)

(dB) + 6 dB ± 3 dB

----------------

V

i(PC)

-----------------------------------------------------------------

1

20

V_o(intc)= 1.1 V (p-p) ×

× 10

(RMS)

---------

2 2

V

1

where:

is the correction term for RMS value, ^i(SC)(dB) is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is

---------

---------------

V_i(PC)

2 2

the correction term of internal circuitry and ± 3 dB is the tolerance of video output and intercarrier output V_o(intc)(rms)

.

[17] To detect a logical 1 at pin QSSO, no DC load at pin QSSO is allowed. QSSO = 0 will be done by the application of a 2.2 kΩ resistor

between pin QSSO and ground.

[18] SIF input level is 10 mV (RMS); VIF input level is 10 mV (RMS) unmodulated.

[19] Measured with an FM deviation of 25 kHz and the typical AF output voltage of 500 mV (RMS). For handling a frequency deviation of

more than 55 kHz, the AF output signal has to be reduced in order to avoid clipping (THD < 1.5 %) by means of a resistor R_xwith

external application at pin AFD (see Figure 20 and Figure 21).

[20] The lower limit of the audio bandwidth depends on the value of the capacitor at pin AFD. A value of C_AF= 470 nF leads to

f_AF(−3dB)≈ 20 Hz and C_AF= 220 nF leads to f_AF(−3dB)≈ 40 Hz.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

23 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

[21] For all S/N measurements the used VIF modulator has to meet the following speciﬁcations:

a) Incidental phase modulation for black-to-white jump less than 0.5 degrees.

b) QSS AF performance, measured with the television demodulator AMF2 (audio output, weighted S/N ratio) better than 60 dB (at

deviation 27 kHz) for 6 kHz sine wave black-to-white video modulation.

c) Picture-to-sound carrier ratio PC/SC₁= 13 dB (transmitter).

[22] Calculation of the loop ﬁlter can be done approximately by use of the following formulae:

K_OK_D

1

f _o

=

---------------

------

2π

C_P

1

ϑ =

----------------------------------

2R K_OK_DC_P

BL_–3dB= f _o(1.55 – ϑ ²)

The formulae are only valid under the following conditions:

ϑ ≤ 1 and C_S> 5C_P

rad

-------

V

Hz

------

V

µA

-------

rad

where: K_Ois the VCO steepness

or 2π

; K_Dis the phase detector steepness

; R is the loop resistor; C_Sis the series

capacitor; C_Pis the parallel capacitor; f_ois the natural frequency of PLL; BL_−3dBis the loop bandwidth for −3 dB; ϑ is the damping factor.

For examples, see Table 11.

[23] The PC/SC ratio is calculated as the addition of TV transmitter PC/SC₁ratio and SAW ﬁlter PC/SC₁ratio. This PC/SC ratio is necessary

to achieve the S/N_Wvalues as noted. A different PC/SC ratio will change these values.

[24] Measurements taken with SAW ﬁlter G1984 (Siemens) for vision and sound IF (sound shelf: 14 dB). Picture-to-sound carrier ratio of

transmitter PC/SC = 13 dB. Input level on pins VIF1 and VIF2 of V_i(SIF)= 10 mV (RMS) sync level, 27 kHz FM deviation for sound

carrier, f_AF= 400 Hz. Measurements in accordance with “CCIR 468”. De-emphasis is 50 µs.

[25] The QSS signal output on pin QSSO is analyzed by a test demodulator TDA9820. The S/N ratio of this device is more than 60 dB,

related to a deviation of ± 27 kHz, in accordance with “CCIR 468”.

[26] Measurements taken with SAW ﬁlter G3962 for vision IF (suppressed sound carrier) and K9350 for sound IF (suppressed picture

carrier). Input level V_i(SIF)= 10 mV (RMS), 27 kHz (54 % FM deviation).

[27] The value of C_xdetermines the accuracy of the resonance frequency of the crystal. It depends on the used type of crystal.

[28] Pin REF is able to operate as a 1-pin crystal oscillator input as well as an external reference signal input, e.g. from the tuning system.

Table 11: Examples to the FM PLL ﬁlter

BL_−3dB(kHz)

100

C_S(nF)

10

C_P(pF)

390

R (kΩ)

5.6

ϑ

0.5

160

10

150

9.1

Table 12: Input frequencies and carrier ratios

Description

VIF carrier

SIF carrier

Symbol

f_PC

B/G standard

M/N standard

Unit

MHz

dB

38.9

33.4

33.158

13

45.75 or 58.75

f_SC1

41.25 or 54.25

f_SC2

-

Picture-to-sound

carrier ratio

SC₁

7

-

SC₂

20

dB

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

24 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

video 2 V (p-p)

zero carrier level

white level

3.41 V

3.20 V

black level

1.80 V

1.20 V

sync level

001aab341

Fig 4. Typical video signal levels on output pin CVBS (sound carrier off).

V

P

(V)

V

= 5 V

P

5

100 mV

TDA9881

f

= 70 Hz

ripple

t (s)

001aab339

Fig 5. Ripple rejection condition.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

25 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

mhc116

I

TAGC

V

VAGC

(V)

(µA)

600

500

400

300

200

100

0

4

3

2

(1)

(2)

(3)

(4)

1

30 40 50 60 70 80 90 100 110 120

V

(dBµV)

i(VIF)

(1) V_VAGCis VIF AGC voltage and can be measured at pin VAGC.

(2) I_TAGCis tuner current in TV mode with R_TOP= 22 kΩ.

(3) I_TAGCis tuner current in TV mode with R_TOP= 10 kΩ.

(4) I_TAGCis tuner current in TV mode with R_TOP= 0 kΩ.

Fig 6. Typical VIF and tuner AGC characteristics.

mhb159

001aab342

110

5

V

i(VIF)

V

SAGC

(V)

(dBµV)

100

4

90

80

70

60

3

2

1

0

4

8

12

16

20

R

24

(kΩ)

30

50

70

90

110

130

(dBµV)

V

TOP

i(SIF)

Fig 7. Typical tuner takeover point as a function of

resistor R_TOP

Fig 8. Typical SIF AGC characteristic.

.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

26 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

lock range without SAW filter

AFC window

I

AFC

5

AFC

(V)

(µA)

V

−200

V

P

4

3

2

1

0

−100

0

R1

22 kΩ

I

AFC

21

(23)

V

TDA9881

AFC

R2

22 kΩ

+100

+200

36

37

38

40

41

38.9

f (MHz)

38.71 39.09

001aab345

Pin numbers for TDA9881HN in parenthesis.

Fig 9. Typical analog AFC characteristic.

3.2 dB

mhc112

10 dB

80

13.2 dB

21 dB

13.2 dB

21 dB

S/N

(dB)

60

SC CC

PC

SC CC

PC

40

20

0

BLUE

YELLOW

mha739

SC is sound carrier, with respect to sync level.

CC is chrominance carrier, with respect to sync

level.

PC is picture carrier, with respect to sync level.

30

50

70

90

V

110

(dBµV)

i(VIF)

The sound carrier levels are taking into account a

sound shelf attenuation of 14 dB (SAW ﬁlter

G1984M).

Fig 10. Typical signal-to-noise ratio as a function of VIF

input voltage.

Fig 11. Input signal conditions.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

27 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

mhc122

10

H(s)

(dB)

0

−10

−20

−30

minimum

requirements

−40

2

2.5

3

3.5

4

4.5

5

f (MHz)

Fig 12. Typical amplitude response for sound trap at M/N standard (inclusive Korea).

mhb167

400

group

delay

(ns)

300

200

100

0

ideal characteristic

due to pre-correction

in the transmitter

minimum

requirements

−100

0

0.5

1

1.5

2

2.5

3

3.5

4

f (MHz)

Overall delay is not shown, here the maximum ripple is speciﬁed.

Fig 13. Typical group delay for sound trap at M/N standard.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

28 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

mhb168

10

H(s)

(dB)

0

−10

−20

−30

minimum

requirements

−40

4

4.5

5

5.5

6

6.5

7

f (MHz)

Fig 14. Typical amplitude response for sound trap at B/G standard.

mhb169

400

group

delay

(ns)

300

200

100

0

ideal characteristic

due to pre-correction

in the transmitter

minimum

requirements

−100

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

f (MHz)

Overall delay is not shown, here the maximum ripple is speciﬁed.

Fig 15. Typical group delay for sound trap at B/G standard.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

29 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

mhc123

10

H(s)

(dB)

0

−10

−20

−30

−40

minimum

requirements

4

4.5

5

5.5

6

6.5

7

f (MHz)

Fig 16. Typical amplitude response for sound trap at I standard.

mhb171

10

H(s)

(dB)

0

−10

−20

−30

−40

minimum

requirements

4

4.5

5

5.5

6

6.5

7

f (MHz)

Fig 17. Typical amplitude response for sound trap at D/K standard.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

30 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

mhc118

10

0

(1)

S/N

W

(dB)

−10

−20

−30

−40

−50

−60

−70

(2)

(3)

52

49

46

43

40

37

34

31

28

25

22

19

16

13

10

7

4

PC/SC ratio

gain controlled operation of FM PLL

Conditions: PC/SC ratio is measured at pins VIF1 and VIF2; via transformer; 27 kHz FM deviation; 50 µs de-emphasis.

(1) Signal.

(2) Noise at H-picture (CCIR weighted quasi peak).

(3) Noise at black picture (CCIR weighted quasi peak).

Fig 18. Audio signal-to-noise ratio as a function of picture-to-sound carrier ratio in intercarrier mode.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

31 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

001aab343

10

140

120

video 2 V (p-p)

1

IF signals

RMS value

(V)

antenna input

(dBµV)

(1)

−

1

2

100

10

SAW insertion

loss 20 dB

IF slip

6 dB

−

10 (TOP)

80

tuning gain

control range

70 dB

VIF AGC

−3

10

60

−3

0.66 × 10

SAW insertion

loss 20 dB

−

4

10

40

40 dB

RF gain

−

5

10

20

10

−

5

0.66 × 10

VIF amplifier, demodulator

and video

VHF/UHF tuner

tuner

VIF

TDA9881

SAW filter

(1) Depends on TOP.

Fig 19. Front-end level diagram.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

32 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

14. Package outline

SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm

SOT340-1

D

E

A

X

v

c

H

M

A

y

E

Z

24

13

Q

A

2

A

(A )

3

A

1

pin 1 index

θ

L

p

L

1

12

detail X

w

M

b

p

e

0

2.5

5 mm

scale

DIMENSIONS (mm are the original dimensions)

A

(1)

UNIT

A

b

c

D

E

e

H

L

p

Q

v

w

y

Z

θ

1

2

3

p

E

max.

8^o

0^o

0.21

0.05

1.80

1.65

0.38

0.25

0.20

0.09

8.4

8.0

5.4

5.2

7.9

7.6

1.03

0.63

0.9

0.7

0.8

0.4

mm

2

0.65

1.25

0.25

0.2

0.13

0.1

Note

1. Plastic or metal protrusions of 0.2 mm maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

99-12-27

03-02-19

SOT340-1

MO-150

Fig 22. Package outline SOT340-1 (SSOP24).

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

35 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

HVQFN32: plastic thermal enhanced very thin quad flat package; no leads;

32 terminals; body 5 x 5 x 0.85 mm

SOT617-3

B

A

D

terminal 1

index area

A

1

E

c

detail X

C

e

1

y

v

M

C

A

B

C

1

e

1/2 e

b

w

9

16

L

17

8

e

E

h

2

1/2 e

24

1

terminal 1

index area

32

25

X

D

h

0

2.5

5 mm

scale

DIMENSIONS (mm are the original dimensions)

(1)

A

(1)

UNIT

A

b

c

E

e

2

y

D

E

L

v

w

y

1

h

1

h

max.

0.05 0.30

0.00 0.18

5.1

4.9

3.75

3.45

5.1

4.9

3.75

3.45

0.5

0.3

mm

0.05 0.1

1

0.2

0.5

3.5

0.1

0.05

Note

1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

02-04-18

02-10-22

SOT617-3

- - -

MO-220

- - -

Fig 23. Package outline SOT617-3 (HVQFN32).

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

36 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

15. Soldering

15.1 Introduction to soldering surface mount packages

This text gives a very brief insight to a complex technology. A more in-depth account of

soldering ICs can be found in our Data Handbook IC26; Integrated Circuit Packages

(document order number 9398 652 90011).

There is no soldering method that is ideal for all surface mount IC packages. Wave

soldering can still be used for certain surface mount ICs, but it is not suitable for ﬁne pitch

SMDs. In these situations reﬂow soldering is recommended.

15.2 Reﬂow soldering

Reﬂow soldering requires solder paste (a suspension of ﬁne solder particles, ﬂux and

binding agent) to be applied to the printed-circuit board by screen printing, stencilling or

pressure-syringe dispensing before package placement. Driven by legislation and

environmental forces the worldwide use of lead-free solder pastes is increasing.

Several methods exist for reﬂowing; for example, convection or convection/infrared

heating in a conveyor type oven. Throughput times (preheating, soldering and cooling)

vary between 100 seconds and 200 seconds depending on heating method.

Typical reﬂow peak temperatures range from 215 °C to 270 °C depending on solder paste

material. The top-surface temperature of the packages should preferably be kept:

• below 225 °C (SnPb process) or below 245 °C (Pb-free process)

– for all BGA, HTSSON..T and SSOP..T packages

– for packages with a thickness ≥ 2.5 mm

– for packages with a thickness < 2.5 mm and a volume ≥ 350 mm³so called

thick/large packages.

• below 240 °C (SnPb process) or below 260 °C (Pb-free process) for packages with a

thickness < 2.5 mm and a volume < 350 mm³so called small/thin packages.

Moisture sensitivity precautions, as indicated on packing, must be respected at all times.

15.3 Wave soldering

Conventional single wave soldering is not recommended for surface mount devices

(SMDs) or printed-circuit boards with a high component density, as solder bridging and

non-wetting can present major problems.

To overcome these problems the double-wave soldering method was speciﬁcally

developed.

If wave soldering is used the following conditions must be observed for optimal results:

• Use a double-wave soldering method comprising a turbulent wave with high upward

pressure followed by a smooth laminar wave.

• For packages with leads on two sides and a pitch (e):

– larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be

parallel to the transport direction of the printed-circuit board;

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

37 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

– smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the

transport direction of the printed-circuit board.

The footprint must incorporate solder thieves at the downstream end.

• For packages with leads on four sides, the footprint must be placed at a 45° angle to

the transport direction of the printed-circuit board. The footprint must incorporate

solder thieves downstream and at the side corners.

During placement and before soldering, the package must be ﬁxed with a droplet of

adhesive. The adhesive can be applied by screen printing, pin transfer or syringe

dispensing. The package can be soldered after the adhesive is cured.

Typical dwell time of the leads in the wave ranges from 3 seconds to 4 seconds at 250 °C

or 265 °C, depending on solder material applied, SnPb or Pb-free respectively.

A mildly-activated ﬂux will eliminate the need for removal of corrosive residues in most

applications.

15.4 Manual soldering

Fix the component by ﬁrst soldering two diagonally-opposite end leads. Use a low voltage

(24 V or less) soldering iron applied to the ﬂat part of the lead. Contact time must be

limited to 10 seconds at up to 300 °C.

When using a dedicated tool, all other leads can be soldered in one operation within

2 seconds to 5 seconds between 270 °C and 320 °C.

15.5 Package related soldering information

Table 13: Suitability of surface mount IC packages for wave and reﬂow soldering methods

Package ^[1]

Soldering method

Wave

Reﬂow^[2]

BGA, HTSSON..T^[3], LBGA, LFBGA, SQFP,

SSOP..T^[3], TFBGA, VFBGA, XSON

not suitable

suitable

DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP,

HSQFP, HSSON, HTQFP, HTSSOP, HVQFN,

HVSON, SMS

not suitable^[4]

suitable

PLCC^[5], SO, SOJ

suitable

LQFP, QFP, TQFP

not recommended^{[5] [6]}

not recommended^[7]

not suitable

suitable

SSOP, TSSOP, VSO, VSSOP

CWQCCN..L^[8], PMFP^[9], WQCCN..L^[8]

suitable

not suitable

[1] For more detailed information on the BGA packages refer to the (LF)BGA Application Note (AN01026);

order a copy from your Philips Semiconductors sales ofﬁce.

[2] All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the

maximum temperature (with respect to time) and body size of the package, there is a risk that internal or

external package cracks may occur due to vaporization of the moisture in them (the so called popcorn

effect). For details, refer to the Drypack information in the Data Handbook IC26; Integrated Circuit

Packages; Section: Packing Methods.

[3] These transparent plastic packages are extremely sensitive to reﬂow soldering conditions and must on no

account be processed through more than one soldering cycle or subjected to infrared reﬂow soldering with

peak temperature exceeding 217 °C ± 10 °C measured in the atmosphere of the reﬂow oven. The package

body peak temperature must be kept as low as possible.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

38 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

[4] These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the

solder cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink

on the top side, the solder might be deposited on the heatsink surface.

[5] If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave

direction. The package footprint must incorporate solder thieves downstream and at the side corners.

[6] Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is

deﬁnitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.

[7] Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger

than 0.65 mm; it is deﬁnitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.

[8] Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered

pre-mounted on ﬂex foil. However, the image sensor package can be mounted by the client on a ﬂex foil by

using a hot bar soldering process. The appropriate soldering proﬁle can be provided on request.

[9] Hot bar soldering or manual soldering is suitable for PMFP packages.

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

39 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

16. Revision history

Table 14: Revision history

Document ID

Release date Data sheet status

20041116 Product data sheet

Change notice Doc. number

9397 750 13417

Supersedes

TDA9881_1

-

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

40 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

17. Data sheet status

Level Data sheet status^[1]Product status^{[2] [3]}

Deﬁnition

I

Objective data

Development

This data sheet contains data from the objective speciﬁcation for product development. Philips

Semiconductors reserves the right to change the speciﬁcation in any manner without notice.

II

Preliminary data

Qualiﬁcation

This data sheet contains data from the preliminary speciﬁcation. Supplementary data will be published

at a later date. Philips Semiconductors reserves the right to change the speciﬁcation without notice, in

order to improve the design and supply the best possible product.

III

Product data

Production

This data sheet contains data from the product speciﬁcation. Philips Semiconductors reserves the

right to make changes at any time in order to improve the design, manufacturing and supply. Relevant

changes will be communicated via a Customer Product/Process Change Notiﬁcation (CPCN).

[1]

[2]

Please consult the most recently issued data sheet before initiating or completing a design.

The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at

URL http://www.semiconductors.philips.com.

[3]

For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.

18. Deﬁnitions

19. Disclaimers

Short-form speciﬁcation — The data in a short-form speciﬁcation is

extracted from a full data sheet with the same type number and title. For

detailed information see the relevant data sheet or data handbook.

Life support — These products are not designed for use in life support

appliances, devices, or systems where malfunction of these products can

reasonably be expected to result in personal injury. Philips Semiconductors

customers using or selling these products for use in such applications do so

at their own risk and agree to fully indemnify Philips Semiconductors for any

damages resulting from such application.

Limiting values deﬁnition — Limiting values given are in accordance with

the Absolute Maximum Rating System (IEC 60134). Stress above one or

more of the limiting values may cause permanent damage to the device.

These are stress ratings only and operation of the device at these or at any

other conditions above those given in the Characteristics sections of the

speciﬁcation is not implied. Exposure to limiting values for extended periods

may affect device reliability.

Right to make changes — Philips Semiconductors reserves the right to

make changes in the products - including circuits, standard cells, and/or

software - described or contained herein in order to improve design and/or

performance. When the product is in full production (status ‘Production’),

relevant changes will be communicated via a Customer Product/Process

Change Notiﬁcation (CPCN). Philips Semiconductors assumes no

responsibility or liability for the use of any of these products, conveys no

license or title under any patent, copyright, or mask work right to these

products, and makes no representations or warranties that these products are

free from patent, copyright, or mask work right infringement, unless otherwise

speciﬁed.

Application information — Applications that are described herein for any

of these products are for illustrative purposes only. Philips Semiconductors

make no representation or warranty that such applications will be suitable for

the speciﬁed use without further testing or modiﬁcation.

20. Contact information

For additional information, please visit: http://www.semiconductors.philips.com

For sales ofﬁce addresses, send an email to: sales.addresses@www.semiconductors.philips.com

9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

41 of 42

TDA9881

Philips Semiconductors

Alignment-free vision and FM sound IF PLL demodulator

21. Contents

1

2

3

4

5

6

General description . . . . . . . . . . . . . . . . . . . . . . 1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Quick reference data . . . . . . . . . . . . . . . . . . . . . 2

Ordering information. . . . . . . . . . . . . . . . . . . . . 3

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7

7.1

7.2

Pinning information. . . . . . . . . . . . . . . . . . . . . . 5

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6

8

8.1

8.2

8.3

8.4

8.5

8.6

8.7

Functional description . . . . . . . . . . . . . . . . . . . 7

VIF ampliﬁer . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Tuner AGC and VIF AGC . . . . . . . . . . . . . . . . . 7

VIF AGC detector . . . . . . . . . . . . . . . . . . . . . . . 7

FPLL detector . . . . . . . . . . . . . . . . . . . . . . . . . . 8

VCO and divider . . . . . . . . . . . . . . . . . . . . . . . . 8

AFC and digital acquisition help circuit. . . . . . . 8

Video demodulator and ampliﬁer . . . . . . . . . . . 9

Sound carrier trap. . . . . . . . . . . . . . . . . . . . . . . 9

SIF ampliﬁer . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SIF AGC detector . . . . . . . . . . . . . . . . . . . . . . . 9

Single reference QSS mixer . . . . . . . . . . . . . . 10

FM demodulator and acquisition help circuit . 10

Audio ampliﬁer and mute time constant . . . . . 11

Internal voltage stabilizer . . . . . . . . . . . . . . . . 11

Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8.8

8.9

8.10

8.11

8.12

8.13

8.14

8.15

9

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 12

Thermal characteristics. . . . . . . . . . . . . . . . . . 13

Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 13

Application information. . . . . . . . . . . . . . . . . . 33

Test information. . . . . . . . . . . . . . . . . . . . . . . . 34

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 35

10

11

12

13

14

15

15.1

Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Introduction to soldering surface mount

packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Reﬂow soldering . . . . . . . . . . . . . . . . . . . . . . . 37

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 37

Manual soldering . . . . . . . . . . . . . . . . . . . . . . 38

Package related soldering information . . . . . . 38

15.2

15.3

15.4

15.5

16

17

18

19

20

Revision history. . . . . . . . . . . . . . . . . . . . . . . . 40

Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 41

Deﬁnitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Contact information . . . . . . . . . . . . . . . . . . . . 41

All rights are reserved. Reproduction in whole or in part is prohibited without the prior

written consent of the copyright owner. The information presented in this document does

not form part of any quotation or contract, is believed to be accurate and reliable and may

be changed without notice. No liability will be accepted by the publisher for any

consequence of its use. Publication thereof does not convey nor imply any license under

patent- or other industrial or intellectual property rights.

Date of release: 16 November 2004

Document number: 9397 750 13417

Published in The Netherlands


型号：	TDA9881HN
厂家：	NXP
描述：	Alignment-free vision and FM sound IF PLL demodulator for negative modulated TV standards 对齐免费的视力和调频伴音中频锁相环解调器，负调制电视标准消费电路商用集成电路接收器集成电路电视
文件：	总42页 (文件大小：210K)
中文：	中文翻译
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