GENERAL DESCRIPTION
The AD9920A is a highly integrated charge-coupled device (CCD) signal processor for digital still camera applications. It includes a complete analog front end (AFE) with analog-to-digital conversion, combined with a full-function programmable timing generator and 19-channel vertical driver (V-driver). The timing generator is capable of supporting up to 26 vertical clock signals to control advanced CCDs. The on-chip V-driver supports up to 19 channels for use with 6-field CCDs. A Precision Timing™ core allows adjustment of high speed clocks with approximately 400 ps resolution at 40.5 MHz operation. The AD9920A also contains six GPOs that can be used for shutter and system functions.

FEATURES
   Integrated 19-channel V-driver
   1.8 V AFETG core
   24 programmable vertical clock signals
   Correlated double sampler (CDS) with −3 dB, 0 dB,
      +3 dB, and +6 dB gain
   12-bit, 40.5 MHz analog-to-digital converter (ADC)
   Black level clamp with variable level control
   Complete on-chip timing generator
   Precision Timing core with ~400 ps resolution
   On-chip 3 V horizontal and RG drivers
   General-purpose outputs (GPOs) for shutter and
      system support
   On-chip sync generator with external sync input
   On-chip 1.8 V low dropout (LDO)
   105-lead 8 mm × 8 mm CSP_BGA package

APPLICATIONS
   Digital still cameras