APRIL. 1998
DATA SHEET
KA2141
R/G/B VIDEO AMPLIFIER FOR MONITORS
KA2141
R/G/B VIDEO AMPLIFIER
The KA2141 is a very h...
APRIL. 1998
DATA SHEET
KA2141
R/G/B VIDEO AMPLIFIER FOR MONITORS
KA2141
R/G/B VIDEO AMPLIFIER
The KA2141 is a very high frequency Video amplifier system to be used in Monitor. It contains 3 matched R/G/B video
amplifiers with blank signal and clamp gate pulse and provides a flexible interfacing to DC controlled adjustment system
20-DIP-300A
FUNCTIONS
R/G/B Video Amplifier Contrast/SUB contrast control Brightness control Blank gate/Clamp gate Video clamp
ORDERING INFORMATION
Device KA2141 Package 20-DIP-300 Operating Temperature -25 °C ~ +70 °C
FEATURES
3 - channel R/G/B Video Amplifier: 85MHz bandwidth. DC contrast control range: -38dB (0V ~ 4V) DC sub contrast control range: -11dB (0V ~ 4V) Maximum Video output level: 7Vpp DC Brightness control range: 0V ~ 4V Include blank gate and clamp gate signal processing block
1
KA2141
R/G/B VIDEO AMPLIFIER FOR MONITORS
BLOCK DIAGRAM
ONE (RED) OF THREE CHANNELS
BDRIVE
1
20
BRIGHT
GDRIVE
2
19
ROUT
-A3
RDRIVE
3
2.4V _ A1 + VIDEO CONTRAST VIDEO SUB_CONTRAST + _ A2
18
RCLP
RIN
4
-A4
17
GOUT
VCC1
5
gm
GIN
GND1
7
BIN
8
CONTRAST CONTROL CLAMP GATE BLANK GATE
CONST
9
CLP
10
2
+
6
_
VIDEO CONTRAST CONTROL
VIDEO SUB_CONTRAST CONTROL
16
VCC2
15
GCLP
14
GND2
13
BOUT
12
BCLP
11
BLK
R/G/B VIDEO AMPLIFIER FOR MONITORS
KA2141
PIN CONFIGURATIONS
Table 1. Pin Configurations Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 BDRIVE GDRIVE RDRIVE RIN VCC1 GIN GND1...