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AD9978 Scheda tecnica(PDF) 1 Page - Analog Devices |
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AD9978 Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 2 page Dual-Channel, 14-Bit CCD Signal Processor with Precision Timing Core AD9978 Rev. SpB Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007–2008 Analog Devices, Inc. All rights reserved. FEATURES Dual AFE channels 1.8 V analog and digital core supply voltage Serial data output with reduced range LVDS outputs Differential analog inputs CDS or SHA configuration (CDS bypass) with −3 dB, 0 dB, +3 dB, and +6 dB gain 6 dB to 42 dB, 10-bit variable gain amplifier (VGA) 14-bit, 65 MHz analog-to-digital converter (ADC) Black level clamp with variable level control Precision Timing core with 240 ps resolution @ 65 MHz APPLICATIONS Digital video cameras Digital still cameras Digital copiers Multifunction printers High speed industrial cameras GENERAL DESCRIPTION The AD9978 is a highly integrated, dual-channel CCD signal processor for high speed digital video camera applications. Each channel is specified at pixel rates of up to 65 MHz and consists of a complete analog front end with ADC conversion. The Precision Timing™ core allows adjustment of the correlated double sampler (CDS) and sample-and-hold amplifier (SHA) clocks with 240 ps resolution at 65 MHz operation. The AD9978 also contains a reduced range, low voltage differential signaling (LVDS) interface for the dual-channel data outputs. Each analog front end includes black level clamping, a CDS, a VGA, and a 65 MHz, 14-bit ADC. Operation is programmed using a 3-wire serial interface. Packaged in a space-saving, 6 mm × 6 mm, 40-lead LFCSP, the AD9978 is specified over an operating temperature range of −25°C to +85°C. FUNCTIONAL BLOCK DIAGRAM INP_A INM_A INM_B INP_B –3dB, 0dB, +3dB, +6dB –3dB, 0dB, +3dB, +6dB CDS/ SHA VGA 6dB TO 42dB CLAMP ADC VD HD SDATA SCK CLI CLK_OUT DOUT0P DOUT0N DOUT1P DOUT1N DOUT2P DOUT2N DOUT3P DOUT3N TCLKP TCLKN SL CLAMP VREF ADC 6dB TO 42dB CDS/ SHA VGA PRECISION TIMING CORE SYNC GENERATOR INTERNAL CLOCKS INTERNAL REGISTERS LVDS SERIALIZER AD9978 Figure 1. For more information about the AD9978, contact Analog Devices via email at afe.ccd@analog.com. |
Codice articolo simile - AD9978_08 |
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Descrizione simile - AD9978_08 |
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