AD9979

14位CCD信号处理器， Precision Timing内核 14-Bit, CCD Signal Processor with Precision Timing Core

GENERAL DESCRIPTION

The is a highly integrated CCD signal processor for high speed digital video camera applications. Specified at pixel rates of up to 65 MHz, the AD9979 consists of a complete analog front end with analog-to-digital conversion, combined with a programmable timing driver. The Precision Timing core allows adjustment of high speed clocks with approximately 240 ps resolution at 65 MHz operation.

The analog front end includes black-level clamping, CDS, VGA, and a 65 MSPS, 14-bit analog-to-digital converter. The timing driver provides the high speed CCD clock drivers for RG, HL, and H1 to H4. Operation is programmed using a 3-wire serial interface.

Available in a space-saving, 7 mm × 7 mm, 48-lead LFCSP package, the AD9979 is specified over an operating temperature range of −25°C to +85°C.

FEATURES

  1.8 V analog and digital core supply voltage

  Correlated double sampler CDS with –3 dB, 0 dB, +3 dB, and +6 dB gain

  6 dB to 42 dB 10-bit variable gain amplifier VGA

  14-bit 65 MHz analog-to-digital converter

  Black-level clamp with variable level control

  Complete on-chip timing generator

  Precision Timing core with 240 ps resolution @ 65 MHz

  On-chip 3 V horizontal and RG drivers

  General-purpose outputs GPOs for shutter and system support

  7 mm × 7 mm, 48-lead LFCSP package

  Internal LDO regulator circuitry

APPLICATIONS

  Professional HDTV camcorders

  Professional/high end digital cameras

  Broadcast cameras

  Industrial high speed cameras