AD9944KCP

更新时间： 2024-01-01 04:44:45

品牌	Logo	应用领域
亚德诺 - ADI		消费电路商用集成电路
页数	文件大小	规格书
20页	672K
描述
Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors

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技术参数
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AD9944KCP 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	32
Reach Compliance Code：	unknown	风险等级：	5.09
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	S-XQCC-N32
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-20 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
认证状态：	COMMERCIAL	座面最大高度：	1 mm
最大供电电压 (Vsup)：	3.6 V	最小供电电压 (Vsup)：	2.7 V
表面贴装：	YES	温度等级：	OTHER
端子面层：	MATTE TIN	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	40	宽度：	5 mm
Base Number Matches：	1

AD9944KCP 数据手册

Complete 10-Bit and 12-Bit, 25 MHz

CCD Signal Processors

AD9943/AD9944

FEATURES

GENERAL DESCRIPTION

25 MSPS correlated double sampler (CDS)

6 dB to 40 dB 10-bit variable gain amplifier (VGA)

Low noise optical black clamp circuit

Preblanking function

10-bit (AD9943), 12-bit (AD9944) 25 MSPS A/D converter

No missing codes guaranteed

The AD9943/AD9944 are complete analog signal processors

for CCD applications. They feature a 25 MHz single-channel

architecture designed to sample and condition the outputs of

interlaced and progressive scan area CCD arrays. The signal

chain for the AD9943/AD9944 consists of a correlated double

sampler (CDS), a digitally controlled variable gain amplifier

(VGA), and a black level clamp. The AD9943 offers 10-bit

ADC resolution, while the AD9944 contains a true 12-bit ADC.

3-wire serial digital interface

3 V single-supply operation

Space-saving 32-lead 5 mm × 5 mm LFCSP package

The internal registers are programmed through a 3-wire

serial digital interface. Programmable features include gain

adjustment, black level adjustment, input clock polarity, and

power-down modes. The AD9943/AD9944 operate from a

single 3 V power supply, typically dissipate 79 mW, and are

packaged in space-saving 32-lead LFCSP packages.

APPLICATIONS

Digital still cameras

Digital video camcorders

PC cameras

Portable CCD imaging devices

CCTV cameras

FUNCTIONAL BLOCK DIAGRAM

REFT

REFB

PBLK

AD9943/AD9944

DRVDD

DRVSS

BAND GAP

REFERENCE

6dB–40dB

10/12

10-/12-BIT

ADC

CCDIN

DOUT

VGA

CDS

CLP

AVDD

AVSS

CLPOB

CONTROL

REGISTERS

DVDD

DVSS

DIGITAL

INTERFACE

INTERNAL

TIMING

SCK

SDATA

SHP

SHD DATACLK

Figure 1. Functional Block Diagram

Rev. B

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 that may result from its use.

Specifications subject to change without notice. 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 owners.

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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