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Features
I2C compatible interface
Programmable 110 MHz to 150 MHz bandwidth preamplifier
with full video signal parametric control
4 external 8-bit DACs for bus controlled
Bias and Brightness
Suitable for use with discrete or integrated
clamp, with software configurable Brightness mixer
Power Save (Green) Mode, 80% power reduction
Matched to LM246X driver
Description The LM1267 pre-amp is an integrated CMOS CRT pre-amp. The IC
is I2C compatible, and allows control of all the parameters
necessary to directly setup and adjust the gain and contrast in the CRT display.
Brightness and bias can be controlled through the DAC outputs, and is well
matched to the LM2479 and LM2480 integrated bias clamp IC.
The LM1267 pre-amp is designed to work in cooperation
with the LM246X high gain driver family.
Black level clamping of the signal is carried out directly
on the AC coupled input signal into the high impedance preamplifier input,
thus eliminating the need for additional black level clamp capacitors.
The IC is packaged in an industry standard 24-lead DIP
molded plastic package.
Applications
Low end 15" and 17" bus controlled monitors
with OSD
1024 X 768 displays up to 85 Hz requiring OSD
capability
Very low cost system with LM246X driver
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