LM2408 Monolithic Triple 4 5 ns CRT Driver
December 1996
LM2408
Monolithic Triple 4 5 ns CRT Driver
General Description
The LM2408 is an integrated high voltage CRT driver circuit
designed for use in color monitor applications The IC con-
tains three high input impedance wide band amplifiers
which directly drive the RGB cathodes of a CRT The gain of
each channel is internally set at
b
15 and can drive CRT
capacitive loads as well as resistive loads presented by oth-
er applications limited only by the package鈥檚 power dissipa-
tion
The IC is packaged in an industry standard 11-Lead TO-220
molded plastic power package See thermal considerations
on page 5
Features
Y
Y
Y
Y
Y
Y
Rise fall times typically 4 5 ns with 8 pF load
Output swing capability 50 V
PP
for V
CC
e
80
40 V
PP
for V
CC
e
70
30 V
PP
for V
CC
e
60
Pinout designed for easy PCB layout
1V to 7V input range
Stable with 0 pF 鈥?20 pF capactive loads
Convenient TO-220 staggered lead package style
Applications
Y
Y
CRT driver for 1280
c
1024 (Non-interfaced) and XGA
display resolution color monitors
Pixel clock frequency up to 160 MHz
Schematic and Connection Diagrams
TL H 12683 鈥?2
Note
Tab is at GND
Top View
TL H 12683 鈥?1
FIGURE 1 Simplified Schematic Diagram (One Channel)
C
1996 National Semiconductor Corporation
TL H 12683
RRD-B30M126 Printed in U S A
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