NTSC/PAL TV SIGNAL PROCESSOR

M52770ASP

MITSUBISHI ICs (TV)

DESCRIPTION

The M52770ASP is a single chip CTV processor which has

VIF/SIF, luminance, chrominance, mono sound, OSD display,

RGB interface, and deflection.

baseband 1H delay line is built-in, and conjunction with SECAM

decoder M52325AP simplifies multi system CTV chassis.

FEATURES

• Built-in 1H Delay Line using Bi-CMOS technology

• Multistandard PLL demodulator for IF

• Alignment - free sound demodulator

• Flexible source selection with internal CVBS and external CVBS

or Y/C input signal

• Audio switch integrated

• Integrated chroma trap and bandpass filters with auto-calibration

• Luminance delay line integrated

• RGB control circuit with cut-off and drive

• Linear RGB inputs and fast blanking

• Horizontal synchronaization with two control loops and alignment-

free H-oscillator

• Vertical count-down circuit

• Vertical saw tooth generator integrated

• Easy

interfacing

with

SECAM

decoder

for

multistandard

applications

• Small amount of peripheral components

APPLICATION

NTSC/PAL TELEVISION

QUICK REFERENCE DATA

• Supply voltage

pin11(VIF), pin31(video/chroma).................. 5.0V

pin27(Start-up), pin53(Output Stage)........... 9.0V

• Supply current

pin11 and pin31....................................... 107mA

pin27 and pin53..........................................56mA

• Input signals

VIF input sensitivity................................... 47dBµ

SIF limiting sensitivity............................... 40dBµ

Fast blanking

Internal TV.................. 0 to 0.8V

External RGB............1.2 to 3.3V

Harf Tone.................... 3.7 to 5V

P

PIN CONFIGURATION (TOP VIEW)

64

61

Outline 64P4B

62

63

1

4

3

2

60

5

59

6

56

9

55

10

54

11

53

12

13

14

52

51

7

8

58

57

15

50

16

49

17

48

18

47

19

20

46

45

21

44

22

43

23

24

42

41

25

40

26

39

27

28

29

30

31

32

38

37

36

35

34

33

AFT OUT

SIF LIMITER IN

RF AGC OUT

IF AGC FILTER

VIF GND

VIF IN(1)

VIF IN(2)

AFC 1 FILTER

SCP OUT

H OUT

H OSC

SDA

SCL

R OUT

G OUT

B OUT

B IN

V RAMP C

DEFLECTION GND

V OUT(RAMP/PULSE)

QIF OUT

QIF IN

SPOT KILLER

FAST BLK

AFC 2 FILTER

V RAMP FEEDBACK

MUTE FILTER

BLK HOLD

SECAM REF.

G IN

R IN

VIF APC FILTER2

X-TAL 3.58

CONTRAST CONTROL

VIDEO/CHROMA GND

TV IN

Y SW OUT

X-TAL 4.43

SYNC SEP IN(1)

EXT AUDIO IN

AUDIO OUT

FM DIRECT OUT

VIF VCO (1)

VIF VCO (2)

VIF VIDEO OUT

-(R-Y) IN

-(B-Y) IN

AUDIO BYPASS

KILLER FILTER

EXT IN

CHROMA APC FILTER

VIF APC FILTER1

CHROMA IN

VIDEO CLAMP

VIDEO IN

X-RAY IN

ID FILTER

SYNC SEP IN(2)

• Output signals

RF AGC output range......................... 0.3 to

8.7V

RGB output

Pedestal voltage................. 2.2V