D/A Converter
The output of 7701 (4:4:4 progressive Video) is
fed to the Analog Device, 7801. The RGB output
is a current signal fed via a low pass filter to the
output Op Amps, 7802 and 7803. The Analog
Video, 480P, is fed via a 7 poled flex to the
Analog Board.
Power and Clocks
IC7801 uses the 3.3Vdc supply. The system
clock, SYSCLK_PROGSCAN is running at
27Mhz.
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