PRODUCT DESCRIPTION
The AD9843A is a complete analog signal processor for CCD applications. It features a 20 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9843A’s signal chain consists of an input clamp, correlated double sampler (CDS), digitally controlled variable gain amplifier (VGA), black level clamp, and 10-bit A/D converter. Additional input modes are provided for processing analog video signals.

FEATURES
    20 MSPS Correlated Double Sampler (CDS)
    4 dB ± 6 dB Variable CDS Gain with 6-Bit Resolution
    2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
    Low Noise Clamp Circuits
    Analog Preblanking Function
    10-Bit 20 MSPS A/D Converter
    Auxiliary Inputs with VGA and Input Clamp
    3-Wire Serial Digital Interface
    3 V Single Supply Operation
    Low Power: 65 mW @ 2.7 V Supply
    48-Lead LQFP Package

APPLICATIONS
    Digital Still Cameras
    Digital Video Camcorders
    PC Cameras