PRODUCT DESCRIPTION

The AD9845A is a complete analog signal processor for CCD applications. It features a 30 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9845A’s signal chain consists of an input clamp, correlated double sampler (CDS), Pixel Gain Amplifier (PxGA), digitally controlled variable gain amplifier (VGA), black level clamp, and a 12-bit A/D converter. Additional input modes are provided for processing analog video signals.

FEATURES

30 MSPS Correlated Double Sampler (CDS)

4 dB ± 6 dB 6-Bit Pixel Gain Amplifier (PxGA®)

2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)

Low Noise Clamp Circuits

Analog Preblanking Function

12-Bit 30 MSPS A/D Converter

Auxiliary Inputs with VGA and Input Clamp

3-Wire Serial Digital Interface

3 V Single Supply Operation

Low Power: 140 mW @ 3 V Supply

48-Lead LQFP Package

APPLICATIONS

Digital Still Cameras

Digital Video Camcorders

Industrial Imaging