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VSP2262Y/2K Datasheet(PDF) 1 Page - Texas Instruments |
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VSP2262Y/2K Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 3 page  FEATURES q CCD SIGNAL PROCESSING: Correlated Double Sampling (CDS) Programmable Black Level Clamping q PROGRAMMABLE GAIN AMPLIFIER (PGA): –6dB to +42dB Gain Ranging q 12-BIT DIGITAL DATA OUTPUT: Up to 20MHz Conversion Rate No Missing Codes q 79dB SIGNAL-TO-NOISE RATIO q PORTABLE OPERATION: Low Voltage: 2.7V to 3.6V Low Power: 83mW (typ) at 3.0V Stand-By Mode: 6mW VSP2262 Copyright © 2000, Texas Instruments Incorporated SBMS011 Printed in U.S.A. November, 2000 CCD SIGNAL PROCESSOR for DIGITAL CAMERAS DESCRIPTION The VSP2262 is a complete mixed-signal processing IC for digital cameras, providing signal conditioning and Analog-to-Digital (A/D) conversion for the output of a CCD array. The primary CCD channel provides Correlated Double Sampling (CDS) to extract video information from the pixels, –6dB to +42dB gain range with digital control for varying illumination conditions, and black level clamping for an accurate black level reference. Input signal clamping and offset correction of the input CDS are also performed. The stable gain control is linear in dB. Additionally, the black level is quickly recovered after gain change. The VSP2262Y is available in an LQFP-48 package and operates from a single +3V/+3.3V supply. www.ti.com Programmable Gain Amplifier (PGA) Input Clamp Reference Voltage Generator Preblanking Timing Control Serial Interface Output Latch Correlated Double Sampling (CDS) Analog- to- Digital Converter 12-Bit Digital Output –6dB to +42dB CCDIN CCD Output Signal PBLK Optical Black (OB) Level Clamping COB CLPOB SHP CLPDM SHD SLOAD SCLK SDATA V CC RESET DRV DD ADCCK BYPP2 BYP BYPM REFN CM REFP DRVGND GNDA B[11:0] VSP2262 |
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