1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

FEATURES

5 V supply voltage

Two switched VIF inputs, gain controlled wide band
VIF-amplifier (AC-coupled)

True synchronous demodulation with active carrier
regeneration (very linear demodulation, good
intermodulation figures, reduced harmonics,
excellent pulse response)

Robustness for over-modulation better than 105% due
to gated phase detector at L/L accent standard

VCO frequency switchable between L and L accent
(alignment external) picture carrier frequency

Separate video amplifier for sound trap buffering with
high video bandwidth

VIF-AGC detector for gain control, operating as peak
sync detector for B/G and peak white detector for L
(optional external AGC); signal controlled reaction time
for L

Tuner AGC with adjustable takeover point (TOP)

AFC detector without extra reference circuit

SIF input for single reference QSS mode (PLL
controlled); SIF AGC detector for gain controlled SIF
amplifier; single reference QSS mixer able to operate in
high performance single reference QSS mode

AM demodulator without extra reference circuit

AM mute (especially for NICAM)

Stabilizer circuit for ripple rejection and to achieve
constant output signals

ESD protection for all pins.

GENERAL DESCRIPTION

The TDA9811 is an integrated circuit for multistandard
vision IF signal processing and sound AM, with single
reference QSS-IF in TV and VCR sets.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA9811

SDIP32

plastic shrink dual in-line package; 32 leads (400 mil)

SOT232-1

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

4.5

5.5

supply current

109

125

i VIF(rms)

vision IF input signal voltage sensitivity
(RMS value)

1 dB video at output

100

o CVBS(p-p)

CVBS output signal voltage
(peak-to-peak value)

1.7

2.0

2.3

3 dB video bandwidth on pin CVBS

B/G and L standard;
C

20 pF; R

1 k

; AC load

MHz

S/N (W)

weighted signal-to-noise ratio for video

1.1

intermodulation attenuation at `blue'

f = 1.1 MHz

3.3

intermodulation attenuation at `blue'

f = 3.3 MHz

H(sup)

suppression of harmonics in video
signal

i SIF(rms)

sound IF input signal voltage sensitivity
(RMS value)

3 dB at intercarrier output

o(rms)

audio output signal voltage
(RMS value)

L standard; 54% modulation

0.5

THD

total harmonic distortion

L standard; 54% modulation

0.5

1.0

S/N (W)

weighted signal-to-noise ratio

L standard; 54% modulation

1998

Feb

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and

AM demodulator

TDA981

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BLOCK DIAGRAM

Fig.1 Block diagram.

ook, full pagewidth

SINGLE REFERENCE

MIXER AND

AM DEMODULATOR

VCO TWD

AFC DETECTOR

TUNER AND VIF-AGC

VIF input switch

FPLL

VIDEO DEMODULATOR

AND AMPLIFIER

SIF

AMPLIFIER

SIF-AGC

INTERNAL VOLTAGE

STABILIZER

VIF AMPLIFIER

AND

INPUT SWITCH

SIF

VIFB

VIFA

TDA9811

5 V

1/2

C SAGC

standard

switch

AF AMPLIFIER

AND SWITCH

AF/AM

n.c.

VIDEO

BUFFER

CVBS

2 V (p-p)

video

1 V (p-p)

AFC

2 x f PC

tuner

AGC

loop
filter

TOP

CVAGC

CBL

MHA046

mute switch, AM

(2nd SIF)

Vo QSS

L/L accent

switch

Vi(vid)

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

PINNING

SYMBOL

PIN

DESCRIPTION

i VIF1

VIF differential input signal voltage 1

i VIF2

VIF differential input signal voltage 2

black level detector

i VIF3

VIF differential input signal voltage 3

i VIF4

VIF differential input signal voltage 4

TADJ

tuner AGC takeover adjust (TOP)

PLL

PLL loop filter

SAGC

SIF AGC capacitor

STD

standard switch

o CVBS

CVBS output signal voltage

LSWI

L/L accent switch

o AF

AM audio voltage frequency output

n.c.

not connected

n.c.

not connected

n.c.

not connected

n.c.

not connected

MUTE

AM mute

n.c.

not connected

TAGC

tuner AGC output

o QSS

single reference QSS output voltage

o(vid)

composite video output voltage

i(vid)

video buffer input voltage

AFC

AFC output

VCO1

VCO1 reference circuit for 2f

VCO2

VCO2 reference circuit for 2f

ref

reference capacitor

GND

ground

VAGC

VIF-AGC capacitor

supply voltage

INSWI

VIF input switch

i SIF1

SIF differential input signal voltage 1

i SIF2

SIF differential input signal voltage 2

Fig.2 Pin configuration.

handbook, halfpage

TDA9811

MHA047

TADJ

STD

LSWI

n.c.

GND

INSWI

VCO2

VCO1

AFC

TAGC

n.c.

o AF

o CVBS

SAGC

PLL

i VIF2

i VIF1

Vi VIF4

i VIF3

i SIF1

i SIF2

VAGC

ref

MUTE

o QSS

o(vid)

i(vid)

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

FUNCTIONAL DESCRIPTION

The integrated circuit comprises the functional blocks as
shown in Fig.1:

Vision IF amplifier and input switch

Tuner and VIF-AGC

Frequency Phase Locked Loop detector (FPLL)

VCO, Travelling Wave Divider (TWD) and AFC

Video demodulator and amplifier

Video buffer

SIF amplifier and AGC

Single reference QSS mixer

AM demodulator

Internal voltage stabilizer and

-reference.

Vision IF amplifier and input switch

The vision IF amplifier consists of three AC-coupled
differential amplifier stages. Each differential stage
comprises a feedback network controlled by emitter
degeneration. The first differential stage is extended by
two pairs of emitter followers to provide two IF input
channels. The VIF input can be selected by pin 30.

Tuner and VIF-AGC

The AGC capacitor voltage is transferred to an internal IF
control signal, and is fed to the tuner AGC to generate the
tuner AGC output current (open-collector output). The
tuner AGC takeover point can be adjusted. This allows the
tuner and the SAW filter to be matched to achieve the
optimum IF input level.

The AGC detector charges/discharges the AGC capacitor
to the required voltage for setting of VIF and tuner gain in
order to keep the video signal at a constant level.
Therefore for negative video modulation the sync level and
for positive video modulation the peak white level of the
video signal is detected. In order to reduce the reaction
time for positive modulation, where a very large time
constant is needed, an additional level detector increases
the discharging current of the AGC capacitor (fast mode)
in the event of a decreasing VIF amplitude step. The
additional level information is given by the black level
detector voltage.

Frequency Phase Locked Loop detector (FPLL)

The VIF-amplifier output signal is fed into a frequency
detector and into a phase detector via a limiting amplifier.
During acquisition the frequency detector produces a DC
current proportional to the frequency difference between

the input and the VCO signal. After frequency lock-in the
phase detector produces a DC current proportional to the
phase difference between the VCO and the input signal.
The DC current of either frequency detector or phase
detector is converted into a DC voltage via the loop filter,
which controls the VCO frequency. In the event of positive
modulated signals the phase detector is gated by
composite sync in order to avoid signal distortion for
overmodulated VIF signals.

VCO, Travelling Wave Divider (TWD) and AFC

The VCO operates with a resonance circuit (with L and C
in parallel) at double the PC frequency. The VCO is
controlled by two integrated variable capacitors. The
control voltage required to tune the VCO from its
free-running frequency to actually double the PC
frequency is generated by the frequency-phase detector
(FPLL) and fed via the loop filter to the first variable
capacitor. This control voltage is amplified and additionally
converted into a current which represents the AFC output
signal. The VCO centre frequency can be decreased
(required for L accent standard) by activating an additional
internal capacitor. This is achieved by using the L accent
switch. In this event the second variable capacitor can be
controlled by a variable resistor at the L accent switch for
setting the VCO centre frequency to the required L accent
value. At centre frequency the AFC output current is equal
to zero.

The oscillator signal is divided-by-two with a TWD which
generates two differential output signals with a 90 degree
phase difference independent of the frequency.

Video demodulator and amplifier

The video demodulator is realized by a multiplier which is
designed for low distortion and large bandwidth. The vision
IF input signal is multiplied with the `in phase' signal of the
travelling wave divider output. In the demodulator stage
the video signal polarity can be switched in accordance
with the TV standard.

The demodulator output signal is fed via an integrated
low-pass filter for attenuation of the carrier harmonics to
the video amplifier. The video amplifier is realized by an
operational amplifier with internal feedback and high
bandwidth. A low-pass filter is integrated to achieve an
attenuation of the carrier harmonics for B/G and
L standard. The standard dependent level shift in this
stage delivers the same sync level for positive and
negative modulation. The video output signal is 1 V (p-p)
for nominal vision IF modulation.

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

Video buffer

For an easy adaption of the sound traps an operational
amplifier with internal feedback is used in the event of B/G
and L standard. This amplifier is featured with a high
bandwidth and 7 dB gain. The input impedance is adapted
for operating in combination with ceramic sound traps. The
output stage delivers a nominal 2 V (p-p) positive video
signal. Noise clipping is provided.

SIF amplifier and AGC

The sound IF amplifier consists of two AC-coupled
differential amplifier stages. Each differential stage
comprises a controlled feedback network provided by
emitter degeneration.

The SIF AGC detector is related to the SIF input signals
(average level of AM or FM carriers) and controls the SIF
amplifier to provide a constant SIF signal to the AM
demodulator and single reference QSS mixer. The SIF
AGC reaction time is set to `slow' for nominal video
conditions. But with a decreasing VIF amplitude step the
SIF AGC is set to `fast' mode controlled by the VIF-AGC
detector. In FM mode this reaction time is also set to `fast'
controlled by the standard switch.

Single reference QSS mixer

The single reference QSS mixer is realized by a multiplier.
The SIF amplifier output signal is fed to the single
reference QSS mixer and converted to intercarrier
frequency by the regenerated picture carrier (VCO). The
mixer output signal is fed via a high-pass for attenuation of
the video signal components to the output pin 20. With this
system a high performance hi-fi stereo sound processing
can be achieved.

AM demodulator

The AM demodulator is realized by a multiplier. The
modulated SIF amplifier output signal is multiplied in
phase with the limited (AM is removed) SIF amplifier
output signal. The demodulator output signal is fed via an
integrated low-pass filter for attenuation of the carrier
harmonics to the AF amplifier.

Internal voltage stabilizer and

-reference

The bandgap circuit internally generates a voltage of
approximately 1.25 V, independent of supply voltage and
temperature. A voltage regulator circuit, connected to this
voltage, produces a constant voltage of 3.6 V which is
used as an internal reference voltage.

For the audio output signal the constant reference voltage
cannot be used because large output signals are required.
Therefore this signal refers to half the supply voltage to
achieve a symmetrical headroom. For ripple and noise
attenuation the

voltage has to be filtered via a

low-pass filter by using an external capacitor together with
an integrated resistor (f

= 5 Hz). For a fast setting to

an internal start-up circuit is added.

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

CHARACTERISTICS
V

= 5 V; T

amb

= 25

C; see Table 1 for input frequencies and carrier ratios; input level V

i IF 1-2, 4-5

= 10 mV RMS value

(sync-level for B/G, peak white level for L); video modulation DSB; residual carrier B/G: 10%; L = 3%; video signal in
accordance with

"CCIR, line 17"; measurements taken in Fig.13; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply (pin 29)

supply voltage

note 1

4.5

5.5

supply current

109

125

Vision IF amplifier (pins 1, 2, 4 and 5)

i VIF(rms)

input signal voltage
sensitivity (RMS value)

B/G standard;

1 dB video at output

100

i max(rms)

maximum input signal
voltage (RMS value)

B/G standard;
+1 dB video at output

120

200

o(int)

internal IF amplitude
difference between picture
and sound carrier

within AGC range;
B/G standard;

f = 5.5 MHz

0.7

IFcr

IF gain control range

see Fig.3

i(diff)

differential input resistance

note 2; activated input

1.7

2.2

2.7

i(diff)

differential input capacitance note 2; activated input

1.2

1.7

2.5

1,2,4,5

DC input voltage

note 2; activated input

3.4

input resistance to ground

note 2; not activated input

1.1

1,2,4,5

DC input voltage

note 2; not activated input

0.2

ct IF

crosstalk attenuation of
IF input switch at pins 1, 2,
4 and 5

notes 2 and 3

True synchronous video demodulator; note 4

VCO(max)

maximum oscillator
frequency for carrier
regeneration

f = 2f

125

130

MHz

osc

oscillator drift as a function
of temperature

oscillator is free-running;
I

AFC

= 0; note 5

0 ref(rms)

oscillator voltage swing at
pins 24 and 25 (RMS value)

100

130

PC CR

picture carrier capture range

B/G and L standard

1.4

1.8

MHz

L accent standard;
f

= 33.9 MHz; R

= 5.6 k

0.9

1.2

MHz

PC(fr)

picture carrier frequency
(free-running) accuracy

L accent standard;
f

= 33.9 MHz; R

= 5.6 k

200

400

kHz

PC(alg)CR

L accent alignment
frequency range

AFC

= 0

400

600

kHz

acq

acquisition time

BL = 75 kHz; note 6

i VIF(rms)

VIF input signal voltage
sensitivity for PLL to be
locked (RMS value;
pins 1, 2, 4 and 5)

maximum IF gain; note 7

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

Composite video amplifier (pin 21; sound carrier off)

o video(p-p)

output signal voltage
(peak-to-peak value)

see Fig.8

0.88

1.0

1.12

V/S

ratio between video
(black-to-white) and
sync level

1.9

2.33

3.0

o(video)

output signal voltage
difference

difference between
B/G and L standard

21(sync)

sync voltage level

B/G and L standard

1.5

21(clu)

upper video clipping voltage
level

1.1 V

21(cll)

lower video clipping voltage
level

0.7

0.9

o,21

output resistance

note 2

int 21

internal DC bias current for
emitter-follower

2.2

3.0

21 max(sink)

maximum AC and DC output
sink current

1.6

21 max(source)

maximum AC and DC output
source current

2.9

1 dB video bandwidth

B/G and L standard;
C

50 pF; R

1 k

;

AC load

MHz

3 dB video bandwidth

B/G and L standard;
C

50 pF; R

1 k

;

AC load

MHz

H(sup)

suppression of video signal
harmonics

50 pF; R

1 k

;

AC load; note 8a

PSRR

power supply ripple rejection
at pin 21

video signal; grey level;
see Fig.11

B/G standard

L standard

CVBS buffer amplifier (only) and noise clipper (pins 10 and 22)

i,22

input resistance

note 2

2.6

3.3

4.0

i,22

input capacitance

note 2

1.4

3.0

I,22

DC input voltage

1.4

1.7

2.0

voltage gain

B/G and L standard; note 9

6.5

7.5

10(clu)

upper video clipping voltage
level

3.9

4.0

10(cll)

lower video clipping voltage
level

1.0

1.1

o,10

output resistance

note 2

int 10

DC internal bias current for
emitter-follower

2.0

2.5

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

o,10 max(sink)

maximum AC and DC output
sink current

1.4

o,10 max(source)

maximum AC and DC output
source current

2.4

1 dB video bandwidth

B/G and L standard;
C

20 pF; R

1 k

;

AC load

8.4

MHz

3 dB video bandwidth

B/G and L standard;
C

20 pF; R

1 k

;

AC load

MHz

Measurements from IF input to CVBS output (pin 10; 330

between pins 21 and 22, sound carrier off)

o CVBS(p-p)

CVBS output signal voltage
on pin 10
(peak-to-peak value)

note 9

1.7

2.0

2.3

o CVBS(sync)

sync voltage level

B/G standard

1.35

L standard

1.35

deviation of CVBS output
signal voltage at B/G

50 dB gain control

0.5

30 dB gain control

0.1

o(blB/G)

black level tilt in
B/G standard

gain variation; note 10

o(blL)

black level tilt for worst case
in L standard

picture carrier modulated by
test line (VITS) only;
gain variation; note 10

1.9

diff

differential gain

"CCIR, line 330"

diff

differential phase

"CCIR, line 330"

deg

1 dB video bandwidth

20 pF; R

1 k

;

AC load; B/G and L standard

MHz

3 dB video bandwidth

20 pF; R

1 k

;

AC load; B/G and L standard

MHz

S/N (W)

weighted signal-to-noise
ratio

see Fig.5 and note 11

S/N

unweighted signal-to-noise
ratio

see Fig.5 and note 11

1.1

intermodulation attenuation
at `blue'

f = 1.1 MHz;
see Fig.6 and note 12

intermodulation attenuation
at `yellow'

f = 1.1 MHz;
see Fig.6 and note 12

3.3

intermodulation attenuation
at `blue'

f = 3.3 MHz;
see Fig.6 and note 12

intermodulation attenuation
at `yellow'

f = 3.3 MHz;
see Fig.6 and note 12

pc(rms)

residual picture carrier
(RMS value)

fundamental wave and
harmonics;
B/G and L standard

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

unwanted(p-p)

robustness for unwanted
frequency deviation of
picture carrier
(peak-to-peak value)

L standard;
residual carrier: 3%;
serration pulses: 50%; note 2

kHz

robustness for modulator
imbalance

L standard;
residual carrier: 0%;
serration pulses: 50%; note 2

H(sup)

suppression of video signal
harmonics

note 8a

H(spur)

spurious elements

note 8b

PSRR

power supply ripple rejection
at pin 10

video signal; grey level;
see Fig.11

B/G standard

L standard

VIF-AGC detector (pin 28)

charging current

B/G and L standard; note 10

0.75

1.25

additional charging current

L standard in event of
missing VITS pulses and no
white video content

1.9

2.5

3.1

discharging current

B/G standard

normal mode L standard

225

300

375

fast mode L standard

resp

AGC response to an
increasing VIF step

B/G and L standard; note 13

0.05

0.1

ms/dB

AGC response to a
decreasing VIF step

B/G standard

2.2

3.5

ms/dB

fast mode L standard

1.1

1.8

ms/dB

normal mode L standard;
note 13

150

240

ms/dB

VIF amplitude step for
activating fast AGC mode

L standard

3(th)

threshold voltage level
additional charging current

see Fig.8

L standard

1.95

L standard; fast mode L

1.65

Tuner AGC (pin 19)

i(rms)

IF input signal voltage for
minimum starting point of
tuner takeover (RMS value)

input at pins 1, 2, 4 and 5;
R

TOP

= 22 k

;

= 0.4 mA

IF input signal voltage for
maximum starting point of
tuner takeover (RMS value)

input at pins 1, 2, 4 and 5;
R

TOP

= 0

;

= 0.4 mA

100

o,19

permissible output voltage

from external source; note 2

13.2

sat,19

saturation voltage

= 1.5 mA

0.2

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

TOP,19

variation of takeover point by
temperature

= 0.4 mA

0.03

0.07

dB/K

19(sink)

sink current

see Fig.3

no tuner gain reduction;
V

= 13.2 V

maximum tuner gain
reduction

1.5

2.6

IF slip by automatic gain
control

tuner gain current from
20 to 80%

AFC circuit (pin 23); see Fig.7 and note 14

control steepness

note 15

0.5

0.75

1.0

A/kHz

frequency variation by
temperature

AFC

= 0; note 6

B/G and L standard

L accent standard

o,23

output voltage upper limit

see Fig.7 without external
components

0.6 V

0.3

output voltage lower limit

0.3

0.6

o,23(source)

output source current

see Fig.7

150

200

250

o,23(sink)

output sink current

150

200

250

23(p-p)

residual video modulation
current (peak-to-peak value)

B/G and L standard

Sound IF amplifier (pins 31 and 32)

i SIF(rms)

input signal voltage
sensitivity (RMS value)

FM mode;

3 dB at

intercarrier output pin 20

AM mode;

3 dB at

AF output pin 12

100

i max(rms)

maximum input signal
voltage (RMS value)

FM mode; +1 dB at
intercarrier output pin 20

AM mode; +1 dB at
AF output pin 12

140

SIFcr

SIF gain control range

FM and AM mode; see Fig.4

i(diff)

differential input resistance

note 2

1.7

2.2

2.7

i(diff)

differential input capacitance note 2

1.2

1.7

2.5

I(31,32)

DC input voltage

3.4

ct(SIF,VIF)

crosstalk attenuation
between SIF and VIF input

between pins 1, 2, 4 and 5
and pins 31 and 32; note 3

SIF-AGC detector (pin 8)

charging current

FM mode

AM mode

0.8

1.2

1.6

discharging current

FM mode

normal mode AM

1.4

1.8

fast mode AM

110

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

Single reference QSS intercarrier mixer (B/G standard; pin 20)

o(rms)

IF intercarrier level
(RMS value)

; sound carrier 2 off

100

125

3 dB intercarrier bandwidth

upper limit

7.5

MHz

SC(rms)

residual sound carrier
(RMS value)

fundamental wave and
harmonics

o,20

output resistance

note 2

O,20

DC output voltage

2.0

int 20

DC internal bias current for
emitter-follower

1.5

1.9

20 max(sink)

maximum AC and DC output
sink current

1.1

1.5

20 max(source)

maximum AC and DC output
source current

3.0

3.5

AM mute switch (pin 17)

DC voltage

pin 11: 2.8 V to V

2.8

pin 11: 0 to 2 V

1.8

DC current

mute

230

Single reference QSS AF performance for FM operation (B/G standard); (notes 16 to 19; see Table 1)

S/N (W)

weighted signal-to-noise
ratio (SC

/SC

)

PC/SC

ratio at pins 1 and 2;

27 kHz (54% FM deviation);
"CCIR 468-4"

black picture

53/48

58/55

white picture

50/46

55/52

6 kHz sine wave;
black-to-white modulation

42/40

48/46

250 kHz square wave;
black-to-white modulation;
see note 2 in Fig.13

45/42

53/50

sound carrier
subharmonics;
f = 2.75 MHz

3 kHz

45/44

51/50

sound carrier
subharmonics;
f = 2.87 MHz

3 kHz

46/45

52/51

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

Notes to the characteristics

1. Values of video and sound parameters are decreased at V

= 4.5 V.

2. This parameter is not tested during production and is only given as application information for designing the

television receiver.

3. Source impedance: 2.3 k

in parallel to 12 pF (SAW filter); f

= 38.9 MHz.

AM operation (L standard; pin 12); note 20

o AF12(rms)

AF output signal voltage
(RMS value)

54% modulation

400

500

600

THD

total harmonic distortion

54% modulation; see Fig.10

0.5

1.0

3 dB AF bandwidth

100

125

kHz

S/N (W)

weighted signal-to-noise
ratio

"CCIR 468-4"; see Fig.9

DC potential voltage

tracked with supply voltage

PSRR

power supply ripple rejection see Fig.11

Standard switch (pin 9); see also Table 2

DC potential voltage for
preferred settings

input voltage for negative
standard

B/G standard; note 21

2.8

input voltage for negative
standard

negative AGC off

1.3

2.3

input voltage for positive
standard

L standard

0.8

LOW-level input current

= 0 V

190

250

310

VIF input switch (pin 30); see also Table 2

DC potential voltage for
preferred settings

input voltage for VIF
input A

B/G and L standard; note 21

2.8

input voltage for VIF
input B

B/G and L standard

0.8

LOW-level input current

= 0 V

170

230

290

L accent switch (pin 11)

DC potential voltage for
L standard VCO frequency
switching

L standard

note 21

2.8

L accent standard and
alignment

2.0

LOW-level input current

= 0 V

150

200

250

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

4. Loop bandwidth BL = 75 kHz (natural frequency f

= 11 kHz; damping factor d

3.5; calculated with sync level within

gain control range). Resonance circuit of VCO: Q

> 50; C

ext

= 8.2 pF

0.25 pF; C

int

8.5 pF (loop voltage

approximately 2.7 V).

5. Temperature coefficient of external LC-circuit is equal to zero.

6. V

i IF

= 10 mV RMS;

f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture

video modulation.

7. V

i IF

signal for nominal video signal.

8. Measurements taken with SAW filter G3962 (sound carrier suppression: 40 dB); loop bandwidth BL = 75 kHz:

a) Modulation VSB; sound carrier off; f

video

> 0.5 MHz.

b) Sound carrier on; SIF SAW filter L9453; f

video

= 10 kHz to 10 MHz.

9. The 7 dB buffer gain accounts for 1 dB loss in the sound trap. Buffer output signal is typical 2 V (p-p), in event of

CVBS video amplifier output typical 1 V (p-p). If no sound trap is applied a 330

resistor must be connected from

output to input (from pin 21 to pin 22).

10. The leakage current of the AGC capacitor should not exceed 1

A at B/G standard respectively 10 nA current at

L standard. Larger currents will increase the tilt.

11. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 10). B = 5 MHz weighted

in accordance with

"CCIR 567".

12. The intermodulation figures are defined:

;

1.1

value at 1.1 MHz referenced to black/white signal;

;

3.3

value at 3.3 MHz referenced to colour carrier.

13. Response speed valid for a VIF input level range of 200

V up 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 Fig.7. The AFC-steepness can be changed by the resistors at pin 23.

15. Depending on the ratio

C/C

of the LC resonant circuit of VCO (Q

> 50; see note 4; C

= C

int

+ C

ext

16. The V

o QSS

output (pin 20) is analysed by a test demodulator TDA9820. The S/N of this equipment should be higher

than 60 dB, related to a deviation of

27 kHz, in accordance with

"CCIR 468-4".

17. For all S/N measurements the used vision IF 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 (deviation 27 kHz) for 6 kHz sine wave black-to-white video modulation.

c) Picture-to-sound carrier ratio; PC/SC

= 13 dB (transmitter).

18. Measurements taken with SAW filter G3962 (Siemens) for vision IF (suppressed sound carrier) and G9350

(Siemens) for sound IF (suppressed picture carrier). Input level V

i SIF

= 10 mV RMS, 27 kHz (54% FM deviation).

19. The PC/SC ratio at pins 1 and 2 is calculated as the addition of TV transmitter PC/SC ratio and SAW filter PC/SC

ratio. This PC/SC ratio is necessary to achieve the S/N (W) values as noted. A different PC/SC ratio will change
these values.

20. Measurements taken with SAW filter L9453 (Siemens) for AM sound IF (suppressed picture carrier).

21. The input voltage has to be V

> 2.8 V or open-circuit.

1.1

at 4.4 MHz

at 1.1 MHz

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

3.6dB

log

3.3

at 4.4 MHz

at 3.3 MHz

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

log

1998

Feb

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and

AM demodulator

TDA981

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TEST AND APPLICA

TION INFORMA

TION

handbook, full pagewidth

8.2 pF

2.2

Cref

GND

2.2

VIF

input switch

AGC

video

output

QSS intercarrier

output

330

(1)

n.c.

tuner

AGC

10
nF

5.6 k

mute switch

1:1

SIF

input

1:1

VIF

input A

1:1

VIF

input B

TDA9811

C BL

100

10 nF

TOP

470

loop
filter

220

39 pF

820 pF

SIF

AGC

2.2

5 V

standard

switch

CVBS

L/L accent

switch

AF/AM

n.c.

MHA050

100

22 k

AFC

Q0 > 50

Fig.13 Test circuit.

(1) Application for improved 250 kHz sound performance.

1998

Feb

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and

AM demodulator

TDA981

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handbook, full pagewidth

Q0 > 50

8.2 pF

2.2

Cref

2.2

VIF

input switch

AGC

QSS intercarrier

output

n.c.

tuner

AGC

10
nF

5.6 k

mute switch

TDA9811

C BL

100

10 nF

TOP

SIF

AGC

2.2

5 V

standard

switch

CVBS

L/L accent

switch

AF/AM

output

n.c.

MHA051

100

22 k

AFC

video

output

330

input

SAW

FILTER

G3962

SAW

FILTER

G9350

(1)

(3)

(2)

(1)

SAW

FILTER

F4952

(1)

470

loop
filter

220

39 pF

820 pF

Fig.14 Application circuit.

(1) Depends on standard.

(2) Application for improved 250 kHz sound performance.

(3) Only required for external AGC mode.

1998 Feb 09

Philips Semiconductors

Product specification

Multistandard VIF-PLL with QSS-IF and
AM demodulator

TDA9811

SOLDERING

Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

"IC Package Databook" (order code 9398 652 90011).

Soldering by dipping or by wave

The maximum permissible temperature of the solder is
260

C; solder at this temperature must not be in contact

with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T

stg max

). If the

printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

Repairing soldered joints

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300

C it may remain in

contact for up to 10 seconds. If the bit temperature is
between 300 and 400

C, contact may be up to 5 seconds.

DEFINITIONS

LIFE SUPPORT APPLICATIONS

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 customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

Data sheet status

Objective specification

This data sheet contains target or goal specifications for product development.

Preliminary specification

This data sheet contains preliminary data; supplementary data may be published later.

Product specification

This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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.

Application information

Where application information is given, it is advisory and does not form part of the specification.

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

Philips Semiconductors a worldwide company

SCA57

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.

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Printed in The Netherlands

545104/1200/02/pp36

Date of release: 1998 Feb 09

Document order number:

9397 750 03123

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA9811

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA9811