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AD9944KCPRL

更新时间： 2024-02-06 20:25:08

品牌	Logo	应用领域
亚德诺 - ADI		/
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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数据手册
替代型号

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AD9944KCPRL 数据手册

AD9943/AD9944

APPLICATIONS INFORMATION

The AD9943/AD9944 are complete analog front end (AFE)

products for digital still camera and camcorder applications. As

shown in Figure 12, the CCD image (pixel) data is buffered and

sent to the AD9943/AD9944 analog input through a series input

capacitor. The AD9943/AD9944 perform the dc restoration,

CDS, gain adjustment, black level correction, and analog-to-

digital conversion. The AD9943/AD9944’s digital output data is

then processed by the image processing ASIC. The internal

registers of the AD9943/AD9944—used to control gain, offset

level, and other functions—are programmed by the ASIC or

microprocessor through a 3-wire serial digital interface. A

system timing generator provides the clock signals for both the

CCD and the AFE.

DIGITAL

OUTPUTS

AD9943/AD9944

CCD

OUT

ADC

OUT

0.1µF

DIGITAL IMAGE

PROCESSING

ASIC

CCDIN

SERIAL

INTERFACE

DATA

BUFFER

CDS/CLAMP

TIMING

V-DRIVE

CCD

TIMING

GENERATOR

Figure 16. System Applications Diagram

SERIAL

INTERFACE

32 31 30 29 28 27 26 25

1.0µF

24 REFB

23 REFT

22 CCDIN

PIN 1

IDENTIFIER

0.1µF

CCDIN

21 AVSS

20 AVDD

AD9943

ANALOG

SUPPLY

19 SHD

0.1µF

TOP VIEW

18 SHP

17 CLPOB

(Not to Scale)

10 11 12 13 14 15 16

CLOCK

INPUTS

DATA

OUTPUTS

DRIVER

SUPPLY

ANALOG

SUPPLY

0.1µF

NC = NO CONNECT

Figure 17. AD9943 Recommended Circuit Configuration for CCD Mode

Rev. B | Page 18 of 20

1...15 16 171819 20

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AD9944KCPRL 替代型号

型号	品牌	替代类型	描述	数据表
AD9944KCPZRL	ADI	完全替代	Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors
AD9944KCPZ	ADI	功能相似	Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors
AD9944KCP	ADI	完全替代	Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors

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AD9944KCPZRL1	ADI	获取价格	Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors
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AD9945KCPRL	ADI	获取价格	Complete 12-Bit 40 MHz CCD Signal Processor
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AD9945KCPZ	ADI	获取价格	Complete 12-Bit 40 MHz CCD Signal Processor
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