ka2143b Samsung Semiconductor, Inc., ka2143b Datasheet - Page 3

• Manufacturer Part Number: ka2143b
• Description: R/g/b Video Amplifier With Osd Interface For Monitors
• Manufacturer: Samsung Semiconductor, Inc.

KA2143B
BLOCK DIAGRAM
2
OSD_ CONST
VI/OSD_SW
CONST
GOSD
ROSD
BOSD
GND1
VCC1
CLP
GIN
RIN
BIN
10
11
12
1
2
3
4
5
6
7
8
9
+
_
_
+
gm1
A2
A1
_
+
ONE (RED)
OF THREE CHANNELS
CONTRAST
CONTROL
CONTROL
SWITCH
SWITH
VIDEO
OSD
OSD
R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS
CONTRAST
CONTRAST
CONTRAST
CONTROL
VIDEO
OSD
+
SUB_CONTRAST
SUB_CONTRAST
CONTROL
VIDEO
VIDEO
CLAMP
+
GATE
_
gm2
A3
_
+
1.5V
-A5
-A4
BLANK
GATE
24
23
22
21
20
19
18
17
16
15
14
13
RDRIVE
GDRIVE
BDRIVE
GOUT
ROUT
VCC2
GND2
RCLP
GCLP
BCLP
BOUT
BLK