CCD Video Output
Sync. ADC Clk
ADC Bus
CPU
W78E516
CLOCK
16 MHz
CCD Timing
Data
Bus
IR
BD
With
ROM
Figure 5-4 Film Scanner Power Board. Block
5-4 API Confidential Electrical Systems
No Copy/Reproduction allowed
The analog circuits is used for CCD signals amplification, gain/DC offset
compensation and digitizing the pixel signals. The ASIC AP2106A is used
for managing the scanner including analog circuits timing, stepping
motors(line motor) timing , CCD timing, RAM/ROM timing, and also SCSI
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