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參數資料
| 型號： | AD9844 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Complete 12-Bit 20 MSPS CCD Signal Processor |
| 中文描述： | 完整的12位20 MSPS的CCD信號處理器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 169K |
| 代理商： | AD9844 |
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD9844A
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
Complete 12-Bit 20 MSPS
CCD Signal Processor
FUNCTIONAL BLOCK DIAGRAM
DATACLK
SHD
SHP
BANDGAP
REFERENCE
2:1
MUX
DOUT
AUX2IN
CLPDM
CCDIN
OFFSET
DAC
PBLK
AUX1IN
VRT
VRB
INTERNAL
TIMING
INTERNAL
BIAS
2dB~36dB
AVDD
DVDD
DVSS
AVSS
DRVDD
DRVSS
10
8
CML
DIGITAL
INTERFACE
SDATA
SCK
SL
CLPOB
12
CDS
VGA
CLP
BUF
2:1
MUX
CLP
AD9844A
4dB 6dB
INTERNAL
REGISTERS
CLP
12-BIT
ADC
6
FEATURES
20 MSPS Correlated Double Sampler (CDS)
4 dB 6 dB Variable CDS Gain with 6-Bit Resolution
2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
Low Noise Clamp Circuits
Analog Preblanking Function
12-Bit 20 MSPS A/D Converter
Auxiliary Inputs with VGA and Input Clamp
3-Wire Serial Digital Interface
3 V Single Supply Operation
Low Power: 65 mW @ 2.7 V Supply
48-Lead LQFP Package
APPLICATIONS
Digital Still Cameras
Digital Video Camcorders
PC Cameras
PRODUCT DESCRIPTION
The AD9844A is a complete analog signal processor for CCD
applications. It features a 20 MHz single-channel architecture
designed to sample and condition the outputs of interlaced and
progressive scan area CCD arrays. The AD9844A’s signal chain
consists of an input clamp, correlated double sampler (CDS),
digitally controlled variable gain amplifier (VGA), black level
clamp, and 12-bit A/D converter. Additional input modes are
provided for processing analog video signals.
The internal registers are programmed through a 3-wire serial
digital interface. Programmable features include gain adjustment,
black level adjustment, input configuration, and power-down
modes.
The AD9844A operates from a single 3 V power supply, typi-
cally dissipates 78 mW, and is packaged in a 48-lead LQFP.
相關PDF資料 |
PDF描述 |
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| AD9844A | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844AJST | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9845B | Complete 12-Bit 30 MSPS CCD Signal Processor |
| AD9845BJST | Complete 12-Bit 30 MSPS CCD Signal Processor |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9844A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844AJST | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3.3V 48-Pin LQFP 制造商:Analog Devices 功能描述:AFE VID 1ADC 12-BIT 3.3V 48LQFP - Bulk 制造商:Rochester Electronics LLC 功能描述:12 BIT 20 MHZ ANALOG FRONT END - Tape and Reel |
| AD9844AJSTRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3.3V 48-Pin LQFP T/R 制造商:Analog Devices 功能描述:AFE VID 1ADC 12-BIT 3.3V 48LQFP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:12 BIT 20 MHZ ANALOG FRONT END - Tape and Reel |
| AD9844AJSTZ | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3.3V 48-Pin LQFP 制造商:Analog Devices 功能描述:12 BIT 20 MHz ANALOG FRONT END |
| AD9844-EB | 制造商:Analog Devices 功能描述: |
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