AD9948KCPRL datasheet(1/28 Pages) AD

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Fax: 781/326-8703

AD9948

10-Bit CCD Signal Processor with

Precision Timing™ Core

FUNCTIONAL BLOCK DIAGRAM

CLAMP

DOUT

CCDIN

REFT REFB

INTERNAL

REGISTERS

6dB TO 42dB

SYNC

GENERATOR

SDATA

SCK

SL

HBLK

10

VGA

AD9948

PRECISION

TIMING

CORE

10-BIT

ADC

VREF

INTERNAL

CLOCKS

PxGA

CDS

HORIZONTAL

DRIVERS

4

RG

H1–H4

HD

VD

CLI

CLP/PBLK

0dB TO 18dB

FEATURES

Correlated Double Sampler (CDS)

0 dB to 18 dB Pixel Gain Amplifier (

PxGA®)

6 dB to 42 dB 10-Bit Variable Gain Amplifier (VGA)

10-Bit 25 MSPS A/D Converter

Black Level Clamp with Variable Level Control

Complete On-Chip Timing Driver

Precision Timing Core with 800 ps Resolution

On-Chip 3 V Horizontal and RG Drivers

40-Lead LFCSP Package

APPLICATIONS

Digital Still Cameras

High Speed Digital Imaging Applications

GENERAL DESCRIPTION

The AD9948 is a highly integrated CCD signal processor for

digital still camera applications. Specified at pixel rates of up to

25 MHz, the AD9948 consists of a complete analog front end

with A/D conversion, combined with a programmable timing

driver. The Precision Timing core allows adjustment of high

speed clocks with 800 ps resolution.

The analog front end includes black level clamping, CDS, PxGA,

VGA, and a 25 MHz 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.

Packaged in a space-saving 40-lead LFCSP package, the

AD9948 is specified over an operating temperature range of

–20

°C to +85°C.

Số phần tương tự - AD9948KCPRL

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
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	AD9948	545Kb / 28P	10-Bit CCD Signal Processor with Precision Timing Core REV. 0

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Mô tả tương tự - AD9948KCPRL

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