91
Rigel-PJ1nx Training
Slide 91
Video Signal Input Processor Block
The video input signals entered in Computer1 (D-SUB 15-pin) and Computer2
(D-SUB 15-pin) are terminated at 75
Ω
and then respectively applied to PW-
C950 (IC3001).
The LPF circuit is incorporated in PW-C950 where 16-stage filter characteristics
are provided. Changeover is possible on the user side (Expert mode or higher).
The video signals are converted into 10-bit digital signals in the internal A/D
converter. IC3001 is provided with three channels of internal A/D converters.
Therefore, it is used in common by the RGB/Component and VIDEO/S-VIDEO
signals.
Since IC3001 is provided with an internal PLL circuit, the clock and timing pulses
locked with the H sync signal are internally generated.
The video signals passing through the A/D converter are processed for scaling at
the internal scaling circuit, and then output to the LCD driver block.
