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AD9847AKSTZ

更新时间： 2024-02-14 10:31:30

品牌	Logo	应用领域
亚德诺 - ADI		驱动器
页数	文件大小	规格书
28页	521K
描述
10-Bit 40 MSPS CCD Signal Processor with Integrated Timing Driver

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AD9847AKSTZ 数据手册

10-Bit 40 MSPS CCD Signal Processor

with Integrated Timing Driver

AD9847

FEATURES

GENERAL DESCRIPTION

Correlated Double Sampler (CDS)

–2 dB to +10 dB Pixel Gain Amplifier (PxGA^®)

2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)

10-Bit 40 MHz A/D Converter

Black Level Clamp with Variable Level Control

Complete On-Chip Timing Driver

Precision Timing™ Core with 500 ps

Resolution at 40 MSPS

The AD9847 is a highly integrated CCD signal processor for

digital still camera applications. The AD9847 includes a com-

plete analog front end with A/D conversion, combined with

a programmable timing driver. The Precision Timing core allows

adjustment of high speed clocks with approximately 500 ps

resolution at clock speeds of 40 MHz.

The AD9847 is specified at pixel rates of 40 MHz. The analog

front end includes black level clamping, CDS, PxGA, VGA, and a

10-bit A/D converter. The timing driver provides the high speed

CCD clock drivers for RG and H1–H4. Operation is programmed

using a 3-wire serial interface.

On-Chip 5 V Horizontal and RG Drivers

48-Lead LQFP Package

APPLICATIONS

Digital Still Cameras

Packaged in a space-saving 48-lead LQFP, the AD9847 is speci-

fied over an operating temperature range of –20°C to +85°C.

FUNCTIONAL BLOCK DIAGRAM

VRT VRB

VREF

4 ꢀ 6dB

2dB TO 36dB

VGA

DOUT

CDS

ADC

PxGA

CCDIN

CLAMP

INTERNAL

CLOCKS

CLPOB

CLPDM

PBLK

CLI

PRECISION

TIMING

CORE

HORIZONTAL

DRIVERS

H1–H4

SYNC

GENERATOR

INTERNAL

REGISTERS

AD9847

SCK SDATA

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

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 companies.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

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