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參數資料
| 型號： | AD9944KCPZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, MO-220-VHHD-2, LFCSP-32 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 485K |
| 代理商： | AD9944KCPZRL |
Complete 10-Bit and 12-Bit, 25 MHz
CCD Signal Processors
AD9943/AD9944
FEATURES
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
3-wire serial digital interface
3 V single-supply operation
Space-saving 32-lead 5 mm × 5 mm LFCSP package
APPLICATIONS
Digital still cameras
Digital video camcorders
PC cameras
Portable CCD imaging devices
CCTV cameras
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.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.com GENERAL DESCRIPTION
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.
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.
FUNCTIONAL BLOCK DIAGRAM
DATACLK
SHD
SHP
BAND GAP
REFERENCE
DOUT
CCDIN
PBLK
REFT
REFB
INTERNAL
TIMING
6dB–40dB
AVDD
DVDD
DVSS
AVSS
DRVDD
DRVSS
10
DIGITAL
INTERFACE
SDATA
SCK
SL
CLPOB
10/12
CDS
VGA
CLP
AD9943/AD9944
CONTROL
REGISTERS
10-/12-BIT
ADC
0
Figure 1. Functional Block Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| AD9943KCP | Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors |
| AD9943KCPRL | Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors |
| AD9943KCPZ | Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors |
| AD9945KCPZ | Complete 12-Bit 40 MHz CCD Signal Processor |
| AD9945KCPZRL7 | Complete 12-Bit 40 MHz CCD Signal Processor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9944KCPZRL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 10-Bit and 12-Bit, 25 MHz CCD Signal Processors |
| AD9945 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 12-Bit 40 MHz CCD Signal Processor |
| AD9945KCP | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 32-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:12 BIT 40 MSPS FRONT END CONVERTER - Bulk |
| AD9945KCPRL | 制造商:Analog Devices 功能描述:AFE Video 1ADC 12-Bit 3V 32-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:12 BIT 40 MSPS FRONT END CONVERTER - Tape and Reel |
| AD9945KCPRL7 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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