Datasheet > AD9843AJSTZRL

AD9843AJSTZRL

更新时间： 2024-09-17 21:15:39

品牌	Logo	应用领域
亚德诺 - ADI		商用集成电路
页数	文件大小	规格书
16页	157K
描述
IC SPECIALTY CONSUMER CIRCUIT, PQFP48, PLASTIC, LQFP-48, Consumer IC:Other

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AD9843AJSTZRL 数据手册

Complete 10-Bit 20 MSPS

CCD Signal Processor

AD9843A

PRODUCT DESCRIPTION

FEATURES

The AD9843A 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 AD9843A’s signal chain

consists of an input clamp, correlated double sampler (CDS),

digitally controlled variable gain amplifier (VGA), black level

clamp, and 10-bit A/D converter. Additional input modes are

provided for processing analog video signals.

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

10-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

The internal registers are programmed through a 3-wire serial

digital interface. Programmable features include gain adjust-

ment, black level adjustment, input configuration, and power-

down modes.

APPLICATIONS

Digital Still Cameras

Digital Video Camcorders

PC Cameras

The AD9843A operates from a single 3 V power supply, typi-

cally dissipates 78 mW, and is packaged in a 48-lead LQFP.

FUNCTIONAL BLOCK DIAGRAM

PBLK

CLPOB

AVDD

AVSS

DRVDD

CLP

4dBꢀ6dB

DRVSS

2dB~36dB

CDS

CCDIN

2:1

MUX

10-BIT

ADC

DOUT

VGA

CLP

VRT

VRB

BANDGAP

CLPDM

AUX1IN

REFERENCE

OFFSET

DAC

2:1

MUX

BUF

INTERNAL

BIAS

CML

AUX2IN

INTERNAL

REGISTERS

CLP

DVDD

DVSS

DIGITAL

INTERFACE

INTERNAL

TIMING

AD9843A

SHP

SHD DATACLK

SCK

SDATA

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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