This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...

MGR473

3

2

8

7

10

12

13

62

VIFVCO2

VIFVCO1

TAGC

AFC

TOP

mute

Y/CVBS

helper

hue

fsc

switch control

VIF AMPLIFIER

AND PLL

DEMODULATOR

AGC/AFC

VIDEO AMPLIFIER

MUTE

SUPPLY

PULSE

GENERATOR

SOUND

TRAP

GROUP DELAY

CORRECTION

VIDEO SWITCHES

AND

CONTROL

VIFO

GDI

GDO

48

AS

24

C4

23

CVBS/Y4

22

SW1

21

C3

20

CVBS/Y3

19

SW0

18

CVBS2

17

AV2

16

CVBS1

15

AV1

14

CVBSint

6

4

VIF1

VIF2 DECVIF

VCO AND

HORIZONTAL

PLL

VIDEO

IDENTIFICATION

IDENT

SYNC

SEPARATOR

AUTOMATIC

CHROMINANCE

CONTROL

CLOCHE

FILTER

VERTICAL

DIVIDER

SYNC

IN-LOCK

DETECTOR

FILTER

TUNING

TRANSCEIVER

Y-DELAY

Y-delay

RGB2

VO

Y-SWITCH

AND TRAPS

SECAM

DECODER

RGB MATRIX

Y/U/V

SWITCH

BASEBAND

DELAY LINE

PAL(NTSC)/

SECAM SWITCH

Y/C

DETECTOR

BANDPASS

FILTER

subcarrier

COMB FILTER

PAL/NTSC

PLL

HUE CONTROL

SYSTEM

IDENTIFICATION

PAL/NTSC

DEMODULATOR

63

SIF AMPLIFIER

AGC

QSS MIXER

AM DEMODULATOR

1

SIF1

60

HA/CLP

59

SCO

61

VA

46

SCL

47

SDA

36

37

GI1

RI1

38

BI1

39

RGB1

64

SIF2

DECSIF

11

33

VP1

5

QSS/AM

45

VP2 DECDIG

35

DECBG

VIFPLL

VERTICAL

SYNC

SEPARATOR

58

40

BI2

43

GI2

42

RI2

41

53

51

UO

V

U

V

U

B-Y

R-Y

Y

Y

Y

50

YO

49

DECSEC

PH1LF

57

56

55

54

30

REFO

29

CCF

28

YCF

27

SYS2

25

SYS1

26

CVBSCF

32

CVBSPIP

34

CVBSTXT

52

LFBP

44

GND3

31

GND2

9

GND1

TDA9321H

Fig.1 Block diagram.