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AD9978A:  Dual-Channel, 14-Bit HD Image Signal Processor with Precision Timing Core

Product Details


The AD9978A is a highly integrated, dual-channel 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 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.

Each analog front end includes black level clamping, a CDS, a VGA, and a 75 MHz, 14-bit ADC. Operation is programmed using a 3-wire serial interface.

Packaged in a space-saving, 6 mm × 6 mm, 40-lead LFCSP, the AD9978A is specified over an operating temperature range of −25°C to +85°C.

Applications

  • Digital video cameras
  • Digital still cameras
  • Digital copiers
  • Multifunction printers
  • High speed industrial cameras

FEATURES and BENEFITS

  • 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

Functional Block Diagram for AD9978A

OF NOTE ...

For more information about the AD9978A, contact the CCD Development Group.

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.


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