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參數資料
| 型號： | AD9822 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Complete 14-Bit CCD/CIS Signal Processor |
| 中文描述： | 完整的14位防治荒漠化公約/ CIS信號處理器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 150K |
| 代理商： | AD9822 |
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD9822
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., 1999
Complete 14-Bit
CCD/CIS Signal Processor
FUNCTIONAL BLOCK DIAGRAM
9-BIT
DAC
PGA
CDS
PGA
CDS
PGA
CDS
3:1
MUX
14-BIT
ADC
14
14:8
MUX
8
BANDGAP
REFERENCE
CONFIGURATION
REGISTER
MUX
REGISTER
BLUE
GREEN
RED
BLUE
GREEN
RED
6
9
GAIN
REGISTERS
OFFSET
REGISTERS
DIGITAL
CONTROL
INTERFACE
INPUT
CLAMP
BIAS
AD9822
DRVDD
DRVSS
AVDD
AVSS
CAPT
CAPB
AVDD
AVSS
CML
OEB
DOUT
SCLK
SLOAD
SDATA
ADCCLK
CDSCLK2
CDSCLK1
OFFSET
VINB
VING
VINR
9-BIT
DAC
9-BIT
DAC
FEATURES
14-Bit 15 MSPS A/D Converter
No Missing Codes Guaranteed
3-Channel Operation Up to 15 MSPS
1-Channel Operation Up to 12.5 MSPS
Correlated Double Sampling
1–6x Programmable Gain
6
350 mV Programmable Offset
Input Clamp Circuitry
Internal Voltage Reference
Multiplexed Byte-Wide Output (8+6 Format)
3-Wire Serial Digital Interface
3 V/5 V Digital I/O Compatibility
28-Lead SOIC or SSOP
Low Power CMOS: 385 mW (Typ)
Power-Down Mode: <1 mW
APPLICATIONS
Flatbed Document Scanners
Film Scanners
Digital Color Copiers
Multifunction Peripherals
PRODUCT DESCRIPTION
The AD9822 is a complete analog signal processor for CCD
imaging applications. It features a 3-channel architecture
designed to sample and condition the outputs of trilinear
color CCD arrays. Each channel consists of an input clamp,
Correlated Double Sampler (CDS), offset DAC and Pro-
grammable Gain Amplifier (PGA), multiplexed to a high
performance 14-bit A/D converter.
The CDS amplifiers may be disabled for use with sensors such
as Contact Image Sensors (CIS) and CMOS active pixel sensors,
which do not require CDS.
The 14-bit digital output is multiplexed into an 8-bit output
word that is accessed using two read cycles. The internal
registers are programmed through a 3-wire serial interface, and
provide adjustment of the gain, offset, and operating mode.
The AD9822 operates from a single 5 V power supply, typically
consumes 385 mW of power, and is packaged in a 28-lead SOIC
or SSOP.
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| AD9822JR | Complete 14-Bit CCD/CIS Signal Processor |
| AD9822JRS | Complete 14-Bit CCD/CIS Signal Processor |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9822-EB | 制造商:Analog Devices 功能描述: |
| AD9822JR | 制造商:Analog Devices 功能描述:AFE Video 1ADC 14-Bit 5V 28-Pin SOIC W |
| AD9822JRRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 14-Bit 5V 28-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:14 BIT AFE WITH 12 BIT LINEARITY - Bulk |
| AD9822JRS | 制造商:Analog Devices 功能描述:AFE Video 1ADC 14-Bit 5V 28-Pin SSOP |
| AD9822JRSRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 14-Bit 5V 28-Pin SSOP T/R 制造商:Rochester Electronics LLC 功能描述:14 BIT AFE WITH 12 BIT LINEARITY - Bulk |
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