參數(shù)資料
型號(hào): AD9943KCPZ
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 9/20頁(yè)
文件大?。?/td> 0K
描述: IC CCD SIGNAL PROCESSOR 32-LFCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: CCD 信號(hào)處理器,10 位
輸入類(lèi)型: 邏輯
輸出類(lèi)型: 邏輯
接口: 3 線(xiàn)串口
安裝類(lèi)型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 托盤(pán)
Data Sheet
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.
Figure 16. System Applications Diagram
Figure 17. AD9943 Recommended Circuit Configuration for CCD Mode
CCD
CCDIN
BUFFER
VOUT
AD9943/AD9944
ADCOUT
REGISTER
DATA
SERIAL
INTERFACE
DIGITAL
OUTPUTS
DIGITAL IMAGE
PROCESSING
ASIC
TIMING
GENERATOR
V-DRIVE
CCD
TIMING
CDS/CLAMP
TIMING
0.1
F
02905-B-017
24
REFB
23
REFT
22
CCDIN
21
AVSS
D0
1
D1
2
D2
3
NC
20
AVDD
19
SHD
18
SHP
17
CLPOB
D3
4
D4
5
D5
6
D6
7
D7
8
DATA
OUTPUTS
10
D8
D9
9
10
3V
DRIVER
SUPPLY
3V
ANALOG
SUPPLY
3V
ANALOG
SUPPLY
DRV
DD
DRV
S
DV
DD
DAT
ACL
K
D
VSS
P
BL
K
12 13 14 15 16
5
CLOCK
INPUTS
3
SERIAL
INTERFACE
CCDIN
1.0F
0.1F
NC = NO CONNECT
32 31 30 29 28 27 26 25
NC
S
CK
S
DT
A
SL
11
02905-
018
AD9943
TOP VIEW
(Not to Scale)
Rev. C | Page 17 of 20
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