PRODUCTION DESCRIPTION

The AD9807 and AD9805 are complete CCD/CIS imaging decoders and signal processors on a single monolithic integrated circuit. The input of the AD9807/AD9805 allows direct ac coupling of the charge-coupled device (CCD) or contact image sensor (CIS) output(s). The AD9807/AD9805 includes all the circuitry to perform three-channel correlated double sampling (CDS) and programmable gain adjustment of the CCD output; a 12-bit or 10-bit analog-to-digital converter (ADC) quantizes the analog signal. After digitization, the on-board digital signal processor (DSP) circuitry allows pixel rate offset and gain correction. The DSP also corrects odd/even CCD register imbalance errors.

FEATURES

Pin Compatible 12-Bit and 10-Bit Versions

12-Bit/10-Bit 6 MSPS A/D Converter

Integrated Triple Correlated Double Sampler

3-Channel, 2 MSPS Color Mode

13 – 43 Analog Programmable Gain Amplifier

Pixel-Rate Digital Gain Adjustment

Pixel-Rate Digital Offset Adjustment

Internal Voltage Reference

No Missing Codes Guaranteed

Microprocessor-Compatible Control Interface

+3.3 V/+5 V Digital I/O Compatibility

Low Power CMOS: 500 mW

64-Pin PQFP Surface Mount Package