83
Sirius-PJ1Training
Slide 83
Analog Signal Input Processing
R,G,B or Component
R,G,B or Component
R,G,B or Component
I2C
RGB 10bit x3
CLK
IC2003
ISL51002
A/D Converter
IC2801
EP3C16F484C8N
SyncDet(FPGA)
IO_PWB
MAIN_PWB
POIO2
COMPUTER3(M1001)
COMPUTER2(M1701)
COMPUTER1(M1702)
The sync signal (H/V or CS) which is input from COMPUTER 1 (D-SUB15pin
M1702) and COMPUTER 2 (D-SUB15pin M1701) is input to the A/D Converter
(IC2003), respectively. The COMPUTER 3 (BNC x5 M1001) signal is also input
to the A/D Converter via the POIO2 connector from the IO_PWB.
The video signal is converted to a 10-bit digital signal with the internal A/D
Converter. This A/D Converter is also has a built-in PLL circuit, and the clock
locked with H-sync signal and timing pulse are internally generated. It outputs
the video signal from the terminal selected with the projector MENU to SyncDet
(IC2801) after A/D conversion.
