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WM8192

更新时间： 2024-01-10 06:24:51
品牌 Logo 应用领域
欧胜 - WOLFSON 转换器
页数 文件大小 规格书
24页 619K
描述
(8+8) Bit Output 16-bit CIS/CCD AFE/Digitiser

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中文翻译

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WM8192 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
风险等级：5.84Is Samacsys：N
Base Number Matches：1

WM8192 数据手册

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WM8192  
(8 + 8) Bit Output 16-bit CIS/CCD AFE/Digitiser  
Product Preview, June 2000, Rev 1.0  
DESCRIPTION  
FEATURES  
•
•
•
•
•
•
•
•
•
•
•
•
•
16-bit ADC  
The WM8192 is a 16-bit analogue front end/digitiser IC  
which processes and digitises the analogue output signals  
from CCD sensors or Contact Image Sensors (CIS) at pixel  
sample rates of up to 6MSPS.  
6MSPS conversion rate  
Low power – 240mW typical  
5V single supply or 5V/3.3V dual supply operation  
Single or 3 channel operation  
Correlated double sampling  
The device includes three analogue signal processing  
channels each of which contains Reset Level Clamping,  
Correlated Double Sampling and Programmable Gain and  
Offset adjust functions. Three multiplexers allow single  
channel processing. The output from each of these  
channels is time multiplexed into a single high-speed 16-bit  
Analogue to Digital Converter. The digital output data is  
available in 8 or 4-bit wide multiplexed format.  
Programmable gain (8-bit resolution)  
Programmable offset adjust (8-bit resolution)  
Programmable clamp voltage  
8 or 4-bit wide multiplexed data output formats  
Internally generated voltage references  
28-pin SOIC package  
An internal 4-bit DAC is supplied for internal reference level  
generation. This may be used during CDS to reference CIS  
signals or during Reset Level Clamping to clamp CCD  
signals. An external reference level may also be supplied.  
ADC references are generated internally, ensuring optimum  
performance from the device.  
Serial control interface  
APPLICATIONS  
•
•
•
•
Flatbed and sheetfeed scanners  
USB compatible scanners  
Using an analogue supply voltage of 5V and a digital  
interface supply of either 5V or 3.3V, the WM8192 typically  
only consumes 240mW when operating from a single  
5V supply.  
Multi-function peripherals  
High-performance CCD sensor interface  
BLOCK DIAGRAM  
VRLC/VBIAS  
(26)  
VSMP MCLK  
(5) (7)  
AVDD DVDD1 DVDD2  
VRT VRX VRB  
(24) (25) (23)  
(21)  
(3)  
(10)  
CL  
RS VS  
TIMING CONTROL  
WM8192  
VREF/BIAS  
R
8
M
U
X
OFFSET  
DAC  
(4) OEB  
G
B
RINP (1)  
RLC  
RLC  
CDS  
CDS  
+
PGA  
+
+
M
U
X
I/P SIGNAL  
POLARITY  
ADJUST  
R
G
B
8
(13) OP[0]  
(14) OP[1]  
(15) OP[2]  
(16) OP[3]  
(17) OP[4]  
(18) OP[5]  
(19) OP[6]  
(20) OP[7]/SDO  
M
U
X
DATA  
I/O  
PORT  
16-  
BIT  
ADC  
M
U
X
GINP (28)  
BINP (27)  
+
+
PGA  
8
OFFSET  
DAC  
8
I/P SIGNAL  
POLARITY  
ADJUST  
RLC  
CDS  
PGA  
+
8
OFFSET  
DAC  
8
I/P SIGNAL  
POLARITY  
ADJUST  
(9) SEN  
(12) SCK  
(11) SDI  
CONFIGURABLE  
SERIAL  
CONTROL  
RLC  
DAC  
4
INTERFACE  
(6) RLC/ACYC  
(8)  
DGND  
(22)  
AGND1  
(2)  
AGND2  
Product Preview data sheets contain  
specifications for products in the formative  
WOLFSON MICROELECTRONICS LTD  
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK  
Tel: +44 (0) 131 667 9386  
Fax: +44 (0) 131 667 5176  
Email: sales@wolfson.co.uk  
http://www.wolfson.co.uk  
phase of development. These products may  
be changed or discontinued without notice.  
2000 Wolfson Microelectronics Ltd.  
1234567...24

中文翻译

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