欢迎访问ic37.com |
会员登录 免费注册
发布采购

AD9807JS 参数 Datasheet PDF下载

AD9807JS图片预览
型号: AD9807JS
PDF下载: 下载PDF文件 查看货源
内容描述: 完整的12位/ 10位6 MSPS CCD / CIS信号处理器 [Complete 12-Bit/10-Bit 6 MSPS CCD/CIS Signal Processors]
分类和应用: 微控制器和处理器外围集成电路uCs集成电路uPs集成电路
文件页数/大小: 24 页 / 242 K
品牌: AD [ ANALOG DEVICES ]
 浏览型号AD9807JS的Datasheet PDF文件第2页浏览型号AD9807JS的Datasheet PDF文件第3页浏览型号AD9807JS的Datasheet PDF文件第4页浏览型号AD9807JS的Datasheet PDF文件第5页浏览型号AD9807JS的Datasheet PDF文件第6页浏览型号AD9807JS的Datasheet PDF文件第7页浏览型号AD9807JS的Datasheet PDF文件第8页浏览型号AD9807JS的Datasheet PDF文件第9页  
a
FEATURES
Pin Compatible 12-Bit and 10-Bit Versions
12-Bit/10-Bit 6 MSPS A/D Converter
Integrated Triple Correlated Double Sampler
3-Channel, 2 MSPS Color Mode
1 – 4 Analog Programmable Gain Amplifier
Pixel-Rate Digital Gain Adjustment
Pixel-Rate Digital Offset Adjustment
Internal Voltage Reference
No Missing Codes Guaranteed
Microprocessor-Compatible Control Interface
+3.3 V/+5 V Digital I/O Compatibility
Low Power CMOS: 500 mW
64-Pin PQFP Surface Mount Package
Complete 12-Bit/10-Bit 6 MSPS
CCD/CIS Signal Processors
AD9807/AD9805
FUNCTIONAL BLOCK DIAGRAM
VREF
PIXEL PIXEL
OFFSET GAIN
AD9807/AD9805
VINR
RED
CDS
PGA
REF
GREEN
VING
CDS
PGA
MUX
ADC
12-10
GAIN
REGISTERS
8-10
12-10
X
DOUT
CSB
VINB
BLUE
CDS
PGA
INPUT
OFFSET
CONFIG
REGS
ODD
EVEN
MPU
MPU
PORT
PORT
RD
WR
A2
A1
A0
CDSCLK1 CDSCLK2
ADCCLK
PRODUCTION DESCRIPTION
The AD9807 and AD9805 are complete CCD/CIS imaging
decoders and signal processors on a single monolithic integrated
circuit. The input of the AD9807/AD9805 allows direct ac
coupling of the charge-coupled device (CCD) or contact image
sensor (CIS) output(s). The AD9807/AD9805 includes all the
circuitry to perform three-channel correlated double sampling
(CDS) and programmable gain adjustment of the CCD output;
a 12-bit or 10-bit analog-to-digital converter (ADC) quantizes
the analog signal. After digitization, the on-board digital signal
processor (DSP) circuitry allows pixel rate offset and gain correc-
tion. The DSP also corrects odd/even CCD register imbalance
errors. A parallel control bus provides a simple interface to
8-bit microcontrollers. The AD9807/AD9805 comes in a
space saving 64-pin plastic quad flatpack (PQFP) and is specified
over the commercial (0°C to +70°C) temperature range. By
disabling the CDS, the AD9807/AD9805 are also suitable for
non-CCD applications, or applications that do not require
CDS, such as CIS signal processing.
PRODUCT HIGHLIGHTS
On-Chip CDS—An
integrated 3-channel correlated double
sampler allows easy ac coupling directly from the CCD sensor
outputs. Additionally, the CDS reduces low frequency noise
and reset feedthrough.
On-Chip Voltage Reference—The
AD9807/AD9805 includes a
2 V bandgap reference that allows the input range of the device to
be configured for input spans up to 4 V.
6 MSPS A/D Converter—A
highly linear 12-bit or 10-bit A/D
converter sequentially digitizes the red, green and blue CDS
outputs ensuring no missing code performance. The user may also
configure the AD9807/AD9805 for single channel operation.
Digital Gain & Offset Correction—Pixel
rate digital gain and
offset correction blocks allow precise repeatable correction of
imaging system error sources.
Digital I/O Compatibility—The
AD9807/AD9805 offers
+3.3 V/+5 V logic level compatibility.
Pin-Compatible 12-Bit and 10-Bit Versions—The
AD9807 is
also offered in a pin-compatible 10-bit version, the AD9805,
allowing upgrade-ability and simplifying design issues across
different scanner models.
The AD9807/AD9805 offers a complete, single chip CCD
imaging front end in a 64-pin plastic quad flatpack (PQFP).
On-Chip PGA—The
AD9807/AD9805 includes a 3-channel
analog programmable gain amplifier; it is programmable from
1× to 4× in 16 increments.
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997