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參數資料
| 型號： | AD9842AJST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Complete 20 MSPS CCD Signal Processors |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數： | 1/23頁 |
| 文件大?。?/td> | 272K |
| 代理商： | AD9842AJST |
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
AD9841A/AD9842A
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., 2001
Complete 20 MSPS
CCD Signal Processors
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
10/12
CDS
VGA
CLP
BUF
2:1
MUX
CLP
AD9841A/AD9842A
CONTROL
REGISTERS
CLP
ADC
4dB
6dB
COLOR
STEERING
HD
VD
PxGA
6
FEATURES
20 MSPS Correlated Double Sampler (CDS)
4 dB
6 dB 6-Bit Pixel Gain Amplifier (PxGA
)
2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
Low Noise Clamp Circuits
Analog Preblanking Function
10-Bit (9841) or 12-Bit (9842) 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
PRODUCT DESCRIPTION
The AD9841A and AD9842A are complete analog signal proces-
sors for CCD applications. Both products feature a 20 MHz
single-channel architecture designed to sample and condition
the outputs of interlaced and progressive scan area CCD arrays.
The AD9841A/AD9842A’s signal chain consists of an input
clamp, correlated double sampler (CDS), Pixel Gain Amplifier
(
PxGA
), digitally controlled variable gain amplifier (VGA),
black level clamp, and A/D converter. The AD9841A offers 10-bit
ADC resolution, while the AD9842A contains a true 12-bit
ADC. 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 AD9841A and AD9842A operate from a single 3 V power
supply, typically dissipate 78 mW, and are packaged in a 48-
lead LQFP.
PxGA
is a registered trademark of Analog Devices, Inc.
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PDF描述 |
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| AD9843A | Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9843AJST | Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9844 | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844A | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844AJST | Complete 12-Bit 20 MSPS CCD Signal Processor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9842AJSTRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 10-Bit 3.3V 48-Pin LQFP T/R 制造商:Analog Devices 功能描述:AFE VID 1ADC 10-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 |
| AD9842AJSTZ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9842-EB | 制造商:Analog Devices 功能描述:12 BIT 20 MHZ ANALOG FRONT END - Bulk |
| AD9843A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9843AJST | 制造商:Analog Devices 功能描述:AFE Video 1ADC 10-Bit 3.3V 48-Pin LQFP 制造商:Analog Devices 功能描述:AFE VID 1ADC 10-BIT 3.3V 48LQFP - Bulk 制造商:Rochester Electronics LLC 功能描述:10 BIT 20 MSPS CCD SIGNAL PROCESSOR - Bulk |
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