AD9920ABBCZRL

12位CCD信号处理器， V型驱动器和精确定时发生器 12-Bit CCD Signal Processor with V-Driver and Precision Timing Generator

Product Details

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 six-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.

The analog front end includes black level clamping, variable gain CDS, and a 12-bit ADC. The timing generator provides all the necessary CCD clocks: RG, H-clocks, V-clocks, sensor gate pulses, substrate clock, and substrate bias control.

The AD9920A is specified over an operating temperature range of −25°C to +85°C.

**Applications**

* Digital still cameras

### Features and Benefits

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Integrated 19-channel V-driver

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1.8 V AFETG core

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24 programmable vertical clock signals

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

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12-bit, 40.5 MHz analog-to-digital converter ADC

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Black level clamp with variable level control

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Complete on-chip timing generator

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_Precision Timing_ core with ~400 ps resolution

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On-chip 3 V horizontal and RG drivers

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General-purpose outputs GPOs for shutter and system support

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On-chip sync generator with external sync input

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On-chip 1.8 V low dropout LDO

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