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Analog Devices - CCD Signal Processor

Numéro de référence ADDI7100
Description CCD Signal Processor
Fabricant Analog Devices 
Logo Analog Devices 





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ADDI7100 fiche technique
Data Sheet
FEATURES
Pin-compatible upgrade for the AD9945
45 MHz correlated double sampler (CDS) with variable gain
6 dB to 42 dB, 10-bit variable gain amplifier (VGA)
Low noise optical black clamp circuit
Preblanking function
12-bit, 45 MHz ADC
No missing codes guaranteed
3-wire serial digital interface
3 V single-supply operation
Space-saving, 32-lead, 5 mm × 5 mm LFCSP
APPLICATIONS
Digital still cameras
Digital video camcorders
PC cameras
Portable CCD imaging devices
CCTV cameras
Complete, 12-Bit, 45 MHz
CCD Signal Processor
ADDI7100
GENERAL DESCRIPTION
The ADDI7100 is a complete analog signal processor for charge-
coupled device (CCD) applications. It features a 45 MHz,
single-channel architecture designed to sample and condition
the outputs of interlaced and progressive scan area CCD arrays.
The signal chain for the ADDI7100 consists of a correlated double
sampler (CDS), a digitally controlled variable gain amplifier
(VGA), a black level clamp, and a 12-bit ADC.
The internal registers are programmed through a 3-wire serial
digital interface. Programmable features include gain adjustment,
black level adjustment, input clock polarity, and power-down
modes. The ADDI7100 operates from a single 3 V power supply,
typically dissipates 125 mW, and is packaged in a space-saving,
32-lead LFCSP.
FUNCTIONAL BLOCK DIAGRAM
REFT REFB
PBLK
ADDI7100
−3dB, 0dB,
+3dB, +6dB
CCDIN
CDS
6dB TO 42dB
VGA
BAND GAP
REFERENCE
12-BIT
ADC
12
DRVDD
DRVSS
DOUT
D0 TO D11
AVDD
AVSS
CLP
10
CLPOB
CONTROL
REGISTERS
DIGITAL
INTERFACE
INTERNAL
TIMING
DVDD
DVSS
VD SL
SCK SDATA
Figure 1.
SHP SHD DATACLK
Rev. D
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. 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 ©2008–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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