參數(shù)資料
型號: AD9945
廠商: Analog Devices, Inc.
英文描述: Complete 12-Bit 40 MHz CCD Signal Processor
中文描述: 完整的12位40 MHz的CCD信號處理器
文件頁數(shù): 1/16頁
文件大小: 217K
代理商: AD9945
REV. A
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 owners.
Tel: 781/329-4700
www.analog.com
AD9945
Complete 12-Bit 40 MHz
CCD Signal Processor
FEATURES
40 MSPS Correlated Double Sampler (CDS)
6 dB to 40 dB 10-Bit Variable Gain Amplifier (VGA)
Low Noise Optical Black Clamp Circuit
Preblanking Function
12-Bit 40 MSPS A/D Converter
No Missing Codes Guaranteed
3-Wire Serial Digital Interface
3 V Single-Supply Operation
Low Power: 140 mW @ 3 V Supply
Space-Saving 32-Lead 5 mm 5 mm LFCSP
APPLICATIONS
Digital Still Cameras
Digital Video Camcorders
PC Cameras
Portable CCD Imaging Devices
CCTV Cameras
FUNCTIONAL BLOCK DIAGRAM
DATACLK
SHD
SHP
BAND GAP
REFERENCE
DOUT
CCDIN
PBLK
REFT
REFB
INTERNAL
TIMING
6dB TO 40dB
AVDD
DVDD
DVSS
AVSS
DRVDD
DRVSS
10
DIGITAL
INTERFACE
SDATA
SCK
SL
CLPOB
12
AD9945
CONTROL
REGISTERS
12-BIT
ADC
CLP
VGA
CDS
GENERAL DESCRIPTION
The AD9945 is a complete analog signal processor for CCD
applications. It features a 40 MHz single-channel architecture
designed to sample and condition the outputs of interlaced and
progressive scan area CCD arrays. The AD9945’s signal chain
consists of a correlated double sampler (CDS), a digitally con-
trolled variable gain amplifier (VGA), a black level clamp, and a
12-bit A/D converter.
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 AD9945 operates from a single 3 V power supply, typi-
cally dissipates 140 mW, and is packaged in a space-saving
32-lead LFCSP.
相關(guān)PDF資料
PDF描述
AD9945KCP Complete 12-Bit 40 MHz CCD Signal Processor
AD9945KCPRL Complete 12-Bit 40 MHz CCD Signal Processor
AD9945KCPRL7 Complete 12-Bit 40 MHz CCD Signal Processor
AD9945KCPZ2 Complete 12-Bit 40 MHz CCD Signal Processor
AD9945KCPZRL72 Complete 12-Bit 40 MHz CCD Signal Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9945KCP 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 32-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:12 BIT 40 MSPS FRONT END CONVERTER - Bulk
AD9945KCPRL 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 32-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:12 BIT 40 MSPS FRONT END CONVERTER - Tape and Reel
AD9945KCPRL7 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD9945KCPZ 功能描述:IC CCD SIGNAL PROCESSOR 32-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG,串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件
AD9945KCPZ 制造商:Analog Devices 功能描述:CCD Signal Processor IC