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CCD Signal Processor with V-Driver and Precision Timing™ Generator

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Part Details
  • Integrated 15-channel V-driver
  • 12-bit, 36 MHz analog-to-digital converter (ADC)
  • Similar register map to the AD9923
  • 5-field, 10-phase vertical clock support
  • Complete on-chip timing generator
  • Precision Timing core with <600 ps resolution
  • Correlated double sampler (CDS)
  • 6 dB to 42 dB 10-bit variable gain amplifier (VGA)
  • Black level clamp with variable level control
  • On-chip 3 V horizontal and RG drivers
  • 2-phase and 4-phase H-clock modes
  • Electronic and mechanical shutter support
Additional Details
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The AD9923A is a complete 36 MHz front-end solution for digital still cameras and other CCD imaging applications. Similar to the AD9923 product, the AD9923A includes the analog front end (AFE), a fully programmable timing generator (TG), and a 15-channel vertical driver (V-driver). A Precision Timing core allows adjustment of high speed clocks with approximately 600 ps resolution at 36 MHz operation.

The on-chip V-driver supports up to 15 channels for use with 5-field, 10-phase CCDs.

The analog front end includes black level clamping, CDS, VGA, and a 12-bit ADC. The timing generator and V-driver provide all the necessary CCD clocks: RG, H-clocks, vertical clocks, sensor gate pulses, substrate clock, and substrate bias control. The internal registers are programmed using a 3-wire serial interface.

Packaged in an 8 mm × 8 mm CSP_BGA, the AD9923A is specified over an operating temperature range of −25°C to +85°C.


  • Digital still cameras

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