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參數資料
| 型號： | AD9842AJST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Complete 20 MSPS CCD Signal Processors |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數： | 21/23頁 |
| 文件大小： | 272K |
| 代理商： | AD9842AJST |
REV. 0
AD9841A/AD9842A
–21–
CCD
CCDIN
BUFFER
V
OUT
0.1 F
AD984xA
ADC
OUT
REGISTER
DATA
SERIAL
INTERFACE
DIGITAL
OUTPUTS
DIGITAL IMAGE
PROCESSING
ASIC
TIMING
GENERATOR
V-DRIVE
CCD
TIMING
CDS/CLAMP
TIMING
Figure 32. AD984xA System Applications Diagram
36
35
34
33
32
31
30
29
28
27
26
25
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
37
48 47 46 45 44
39 38
43 42 41 40
PIN 1
TOP VIEW
(Not to Scale)
AUX1IN
AVSS
AUX2IN
AVDD2
BYP4
NC
CCDIN
BYP2
BYP1
AVDD1
AVSS
AVSS
NC
NC
(LSB) D0
D1
D2
D3
D4
D5
D6
D7
D8
(MSB) D9
AD9841A
S
S
S
N
S
N
T
D
D
V
V
C
D
D
D
D
D
H
P
C
S
S
C
V
0.1 F
0.1 F
0.1 F
0.1 F
0.1 F
0.1 F
3V
ANALOG SUPPLY
CCD SIGNAL
3V
ANALOG SUPPLY
10
DATA
OUTPUTS
3
SERIAL
INTERFACE
0.1 F
1.0 F
1.0 F
0.1 F
3V
ANALOG SUPPLY
8
CLOCK
INPUTS
0.1 F
0.1 F
3V
ANALOG SUPPLY
3V
DRIVER
SUPPLY
NC = NO CONNECT
Figure 33. AD9841A Recommended Circuit Configuration for CCD-Mode
APPLICATIONS INFORMATION
The AD9841A and AD9842A are complete Analog Front End
(AFE) products for digital still camera and camcorder appli-
cations. As shown in Figure 32, the CCD image (pixel) data is
buffered and sent to the AD984xA analog input through a series
input capacitor. The AD984xA performs the dc restoration,
CDS, gain adjustment, black level correction, and analog-to-
digital conversion. The AD984xA’s digital output data is then
processed by the image processing ASIC. The internal regis-
ters of the AD984xA—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 gen-
erator provides the clock signals for both the CCD and the AFE.
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| AD9843A | Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9843AJST | Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9844 | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844A | Complete 12-Bit 20 MSPS CCD Signal Processor |
| AD9844AJST | Complete 12-Bit 20 MSPS CCD Signal Processor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9842AJSTRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 10-Bit 3.3V 48-Pin LQFP T/R 制造商:Analog Devices 功能描述:AFE VID 1ADC 10-BIT 3.3V 48LQFP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:12 BIT 20 MHZ ANALOG FRONT END - Tape and Reel |
| AD9842AJSTZ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9842-EB | 制造商:Analog Devices 功能描述:12 BIT 20 MHZ ANALOG FRONT END - Bulk |
| AD9843A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 10-Bit 20 MSPS CCD Signal Processor |
| AD9843AJST | 制造商:Analog Devices 功能描述:AFE Video 1ADC 10-Bit 3.3V 48-Pin LQFP 制造商:Analog Devices 功能描述:AFE VID 1ADC 10-BIT 3.3V 48LQFP - Bulk 制造商:Rochester Electronics LLC 功能描述:10 BIT 20 MSPS CCD SIGNAL PROCESSOR - Bulk |
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