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AD9923A

Analog Devices
Part Number AD9923A
Manufacturer Analog Devices
Description CCD Signal Processor
Published Jan 20, 2007
Detailed Description CCD Signal Processor with V-Driver and Precision Timing Generator AD9923A FEATURES Integrated 15-channel V-driver 12-bi...
Datasheet PDF File AD9923A PDF File

AD9923A
AD9923A

Overview
CCD Signal Processor with V-Driver and Precision Timing Generator AD9923A FEATURES 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 On-chip driver for external crystal On-chip sync generator with external sync input 8 mm × 8 mm CSP_BGA package with 0.
65 mm pitch APPLICATIONS Digital still cameras GENERAL DESCRIPTION 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.
FUNCTIONAL BLOCK DIAGRAM REFT REFB –3dB, 0dB, +3dB, +6dB +6dB TO +42dB CCDIN CDS VGA VREF AD9923A 12-BIT ADC 12 RG HL H1 TO H4 V1, V2, V3, V4, V5A, V5B, V6, V7A, V7B, V8, V9, V10, V11, V12, V13 HORIZONTAL DRIVERS 4 15 V-DRIVER 13 XV1 TO XV13 VERTICAL 8 TIMING CONTROL XSG1 TO XSG8 2 XSUBCK, XSUBCNT 3 INTERNAL...


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