M52742ASP 데이터 시트보기 (PDF) - Renesas Electronics

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M52742ASP

BUS Controlled 3-Channel Video Preamp for CRT Display Monitor

Renesas Electronics 

M52742ASP

Block Diagram

OSD IN (R) 4

MAIN

BRIGHTNESS

30

RETRACE

BLK IN

27

INPUT (R) 2

VCC1 (R) 12 V 3

GND1 (R) 5

OSD IN (G) 9

Clamp

INPUT (G) 6

VCC1 (G) 12 V 8

GND1 (G) 10

Clamp

OSD IN (B) 13

INPUT (B) 11

Clamp

VCC1 (B) 12 V 12

GND1 (B) 14

CONTRAST 15

(ABL) IN

INPUT (SOG) 7

SOG SEP OUT 18

Sync on

Green Sep

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

OSD Mix

Amp

Clamp

F/B

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

OSD Mix

Amp

Clamp

F/B

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

Main

contrast

8 bit

OSD Mix

Amp

OSD

level 4 bit

Clamp

F/B

R Sub Cont 8 bit

G Sub Cont 8 bit

B Sub Cont 8 bit

DAC

Retrace

blanking

35 OUTPUT (R)

34 EXT

FEED BACK (R)

Retrace

blanking

32 OUTPUT (G)

31 EXT

FEED BACK (G)

Retrace

blanking

29 OUTPUT (B)

BUS

I/F

28 EXT

FEED BACK (B)

17

VCC 5 V

(DIGITAL)

21 SDA

20 SCL

22 GND (5 V)

19

CLAMP

PULSE

IN

16

36

33

1

UNIFORMITY VCC2 GND2 OSD

IN

= 12 V

BLK IN

23 24 25 26

DAC OUTPUT

FOR CUT-OFF adj

REJ03F0192-0201 Rev.2.01 Mar 31, 2008

Page 2 of 26

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