R/G/B VIDEO AMPLIFIER FOR MONITORS
KA2141
1
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
FUNCTIONS
R/G/B Video Amplifier
Contrast/SUB contrast control
Brightness control
Blank gate/Clamp gate
Video clamp
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
20-DIP-300A
ORDERING INFORMATION
Device
Package
Operating Temperature
KA2141
20-DIP-300
-25
C ~ +70
C
KA2141 R/G/B VIDEO AMPLIFIER FOR MONITORS
4
PIN DESCRITION
Table 2. Pin Description
Pin No
Pin Name
Schematic
Description
4
6
8
Red Video Input
(RIN)
Green Video input
(GIN)
Blue Video Input
(BIN)
Max input video signal is 0.7Vpp
9
1
2
3
Video Contrast
(CONST)
Blue Drive
(BDRIVE)
Green Drive
(GDRIVE)
Red Drive
(RDRIVE)
Video maximum contrast control
range (0V ~ 4V) is -38dB
Sub contrast control range
(0V ~ 4V) is -11dB
5
17
V
CC1
V
CC2
-
Supply voltage
7
14
GND1
GND2
-
Ground
10
Clamp Gate Input
(CLP)
Video amp actives when clamp
gate signal is in low TTL level
2.4V Bias
VCC
PIN 9
PIN 10
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