TDA9811 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TDA9811

Multistandard VIF-PLL with QSS-IF and AM demodulator

Philips Electronics 

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CVAGC

VIF input switch

TOP

C BL

tuner

AGC

loop

filter

2 x f PC

AFC

VIFB

VIFA

SIF

30

5

4

VIF AMPLIFIER

2

AND

INPUT SWITCH

1

32

31

28

3

6

19

7

25 24

23

TUNER AND VIF-AGC

VCO TWD

AFC DETECTOR

21

FPLL

SIF

AMPLIFIER

SINGLE REFERENCE

MIXER AND

AM DEMODULATOR

VIDEO DEMODULATOR

AND AMPLIFIER

TDA9811

10

VIDEO

BUFFER

22

AF AMPLIFIER

12

AND SWITCH

video

1 V (p-p)

CVBS

2 V (p-p)

Vi(vid)

AF/AM

INTERNAL VOLTAGE

STABILIZER

SIF-AGC

29 27 26

9

1/2 VP

5V

standard

switch

8

C SAGC

20 11

18 16 15

L/L accent n.c. n.c. n.c.

switch

(2nd SIF)

Vo QSS

13

n.c.

14

n.c.

17

MHA046

mute switch, AM

Fig.1 Block diagram.

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