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參數資料
| 型號： | AD9945KCPZRL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/14頁 |
| 文件大小： | 0K |
| 描述： | IC CCD SIGNAL PROCESSOR 32-LFCSP |
| 標準包裝： | 1,500 |
| 類型： | CCD 信號處理器，12 位 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | 3 線串口 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 32-LFCSP-VQ（5x5） |
| 包裝： | 帶卷 (TR) |
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax:
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:
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
mW, and is packaged in a space-saving
32-lead LFCSP.
REV.
160
C
781/461-3113
2013 Analog Devices, Inc. All rights reserved.
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相關代理商/技術參數 |
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