LM1044 Analog Video Switch
June 1992
LM1044 Analog Video Switch
General Description
Primarily intended for but not restricted to the switching of
video signals the LM1044 is a monolithic DC controlled an-
alog switch with buffered outputs allowing the selection of
three 5 MHz bandwidth 6 dB gain channels or two
RGB
a
Sync 30 MHz bandwidth 0 dB gain channels Chan-
nel selection is achieved via latched TTL compatible logic
inputs which may be controlled by microprocessor derived
signals The device is supplied in a 24 pin dual in line plastic
package
Features
Y
Y
Y
Y
Y
Y
Wide RGB bandwidth typically 30 MHz
High signal to noise ratio typically 60 dB
Excellent channel isolation typically
b
60 dB
5 MHz
High RGB output currents typically 4 mA peak
RGB channels may be DC restored or clamped
Logically compatible with the LM1038 stereo audio
switch IC
Block Diagram
TL H 9252 鈥?1
Order Number LM1044N
See NS Package Number N24A
C
1995 National Semiconductor Corporation
TL H 9252
RRD-B30M115 Printed in U S A