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AD9937KCPRL Folha de dados(PDF) 1 Page - Analog Devices |
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AD9937KCPRL Folha de dados(HTML) 1 Page - Analog Devices |
1 / 44 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. AD9937 CCD Signal Processor with Precision Timing™ Generator FEATURES 12 MSPS Correlated Double Sampler (CDS) 10-Bit 12 MHz A/D Converter No Missing Codes Guaranteed 6 dB to 40 dB Variable Gain Amplifier (VGA) Black Level Clamp with Variable Level Control Complete On-Chip Timing Generator Precision Timing Core with 1.7 ns Resolution On-Chip: 6-Channel Horizontal and 1-Channel RS Drivers 4-Phase Vertical Transfer Clocks Electronic and Mechanical Shutter Modes On-Chip Sync Generator with External Sync Option APPLICATIONS Digital Still Cameras Industrial Imaging FUNCTIONAL BLOCK DIAGRAM AD9937 RS H1 A–D H2 A, B V1 A/B V2 V3 A/B V4 TG1A TG1B TG3A TG3B CDS VGA CLAMP ADC 10 VCLK VCKM DOUT VREF 6dB TO 40dB HORIZONTAL DRIVERS V-H CONTROL 6 4 4 REFT REFB PRECISION TIMING GENERATOR SYNC GENERATOR INTERNAL CLOCKS LM OFD HD VD INTERNAL REGISTERS SLD SCK SDA GENERAL DESCRIPTION The AD9937 is a highly integrated CCD signal processor. It includes a complete analog front end with A/D conversion, combined with a full-function programmable timing generator. A Precision Timing core allows adjustment of high speed clocks with 1.7 ns resolution at 12 MHz operation. The AD9937 is specified at pixel rates of up to 12 MHz. The analog front end includes black level clamping, CDS, VGA, and a 10-bit A/D converter. The timing generator provides all the necessary CCD clocks: RS, H-clocks, V-clocks, sensor gate pulses, and substrate charge reset pulse. Operation is programmed using a 3-wire serial interface. The AD9937 is packaged in a 56-lead LFCSP and specified over an operating temperature range of –25 °C to +85°C. |
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