M52743BSP 데이터 시트보기 (PDF) - Renesas Electronics

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M52743BSP

I2C BUS Controlled 3-Channel Video Preamplifier

Renesas Electronics 

M52743BSP

Block Diagram

OSD IN (R) 4

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

19

CLAMP

PULSE

IN

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

OSD Mix

MAIN

BRIGHTNESS

30

RETRACE

BLK IN

27

Amp

Retrace

blanking

35 OUTPUT (R)

Clamp

F/B

34 EXT

FEED BACK (R)

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

OSD Mix

Amp

Clamp

F/B

Retrace

blanking

32 OUTPUT (G)

31 EXT

FEED BACK (G)

Sub

contrast

Sub Cont

(8 bit)

Main

contrast

OSD Mix

Amp

Main

contrast

8 bit

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

BUS

I/F

36

33

1

VCC2 GND2 OSD

= 12 V

BLK IN

23 24 25 26

DAC OUTPUT

FOR CUT-OFF Adj

29 OUTPUT (B)

28 EXT

FEED BACK (B)

17

VCC 5 V

(DIGITAL)

21 SDA

20 SCL

22 GND (5V)

REJ03F0193-0201 Rev.2.01 Mar 31, 2008

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