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TDA9802T

Multistandard VIF-PLL demodulator and FM-PLL detector

Philips Electronics 

Philips Semiconductors

Multistandard VIF-PLL demodulator and

FM-PLL detector

Preliminary specification

TDA9802

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

Measurements from IF input to CVBS output (pin 7) 330 Ω between pins 13 and 14, sound carrier off

Vo CVBS

CVBS output signal on pin 7 (peak-to-peak

value)

1.7 2.0 2.3

∆Vo

deviation of CVBS output signal at B/G

50 dB gain control

−

− 0.5

30 dB gain control

−

− 0.1

black level tilt

B/G standard;

see note 12

−

−1

vertical tilt for worst case in L standard

vision carrier modulated −

by test line (VITS) only;

see note 12

− 1.5

∆G

differential gain

−

25

∆ϕ

differential phase

−

13

B

S/N(W)

−3 dB video bandwidth

signal-to-noise ratio; weighted

CL < 20 pF; RL > 1 kΩ 6

8−

see Fig.5 and note 13 56 59 −

α1.1

intermodulation at ‘blue’

intermodulation at ‘yellow’

see Fig.6 and note 14; 56

f = 1.1 MHz

58

62 −

64 −

α3.3

intermodulation at ‘blue’

intermodulation at ‘yellow’

see Fig.6 and note 14; 56

f = 3.3 MHz

57

62 −

63 −

αC

residual vision carrier (RMS value)

fundamental wave

harmonics

−

1 10

−

1 10

αH

suppression of video signal harmonics

see note 10

RR

ripple rejection on pin 7

see Fig.9

35 40 −

25 28 −

V

dB

dB

%

%

%

deg

MHz

dB

dB

dB

dB

dB

mV

mV

dB

dB

AGC detector (pin 19)

tresp

response to an increasing amplitude step of B/G and L

50 dB in input signal

−

1 10

ms

response to a decreasing amplitude step of B/G

50 dB in input signal

L

−

50 100

ms

−

100 150

ms

I19

charging current

additional charging current

B/G and L; see note 12 0.85 1.1 1.35 mA

L in case of missing

2.0 2.7 3.5

µA

VITS pulses and no

white video content

discharging current

B/G

17 22 27

µA

normal mode L

0.24 0.33 0.42

µA

fast mode L

31 44 57

µA

V19

AGC voltage

see Fig.4

maximum gain

0

tbn −

V

V13

threshold voltage level

for additional charging current

minimum gain

see Fig.7

L

−

tbn VP − 0.7 V

1.9 1.95 2.0

V

for fast L mode

L

1.6 1.65 1.7

V

November 1992

9

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