CCD B/W Camera Block Diagram

Figure 7 CCD B/W Camera Block Diagram

CCD B/W Camera Blocks

No.5218-8/10

LC9948G

OSC

Generates the reference frequency for synchronization signal and timing pulse generation: 28.375 MHz

Generates the pulses required for video signal processing (SYNC, blanking, and other signals) and the

Timing pulse generation IC

pulses required for CCD drive.

Includes a built-in CCD horizontal driver circuit.

Provides an electronic iris function

Driver IC

Amplifies the above pulses to their stipulated amplitudes to drive the CCD element.

Level shifting circuit

Drive pulse level shifting

Signal-processing IC

Video signal processing, including sample and hold, clamp, AGC, gamma correction, white clipping, and

pedestal addition.