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