GENERAL DESCRIPTION

The AD9978A is a highly integrated, dual-channel, charge coupled device (CCD) signal processor for high speed digital video camera applications. Each channel is specified at pixel rates of up to 75 MHz and consists of a complete analog front end (AFE) with ADC conversion. The Precision Timing™ core allows adjustment of the correlated double sampler (CDS) and sample-and-hold amplifier (SHA) clocks with 210 ps resolution at 75 MHz operation. The AD9978A also contains a reduced range low voltage differential signaling (LVDS) interface for the dual-channel data outputs.

FEATURES

Dual AFE channels

1.8 V analog and digital core supply voltage

Serial data output with reduced range LVDS outputs

Differential analog inputs

CDS or SHA configuration (CDS bypass) with −3 dB, 0 dB, +3 dB, and +6 dB gain

6 dB to 42 dB, 10-bit variable gain amplifier (VGA)

14-bit, 75 MHz analog-to-digital converter (ADC)

Black level clamp with variable level control

Precision Timing core with 210 ps resolution @ 75 MHz

APPLICATIONS

Digital video cameras

Digital still cameras

Digital copiers

Multifunction printers

High speed industrial cameras