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TDA9813T

VIF-PLL with QSS-IF and dual FM-PLL demodulator

Philips Electronics 

Philips Semiconductors

VIF-PLL with QSS-IF and

dual FM-PLL demodulator

Product specification

TDA9813T

75

handbook, halfpage

S/N

(dB)

50

MED684

25

0

−60

−40

−20

0

20

Vi (VIF)(rms)(dB)

0.06

0.6

6 10

60

600

Vi

(mV)

(VIF)(rms)

Fig.5 Typical signal-to-noise ratio as a function of

IF input voltage.

handbook, halfpage

13.2 dB

27 dB

3.2 dB

13.2 dB

27 dB

10 dB

SC CC

PC

BLUE

SC CC

PC

YELLOW

MED685 - 1

SC = sound carrier, with respect to sync level.

CC = chrominance carrier, with respect to sync level.

PC = picture carrier, with respect to sync level.

The sound carrier levels are taking into account

a sound shelf attenuation of 20 dB (SAW filter G1962).

Fig.6 Input signal conditions.

handbook, full pagewidth

VP

VP = 5 V

I20

TDA9813T 20

22 kΩ

22 kΩ

V20 I20

(V) (µA)

−200

−100

2.5

0

100

200

38.5

38.9

MHA040

(source current)

(sink current)

39.3 f (MHz)

1999 Sep 16

Fig.7 Measurement conditions and typical AFC characteristic.

18

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