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WM8214 PDF预览

WM8214

更新时间: 2024-02-08 14:12:04
品牌 Logo 应用领域
欧胜 - WOLFSON /
页数 文件大小 规格书
35页 441K
描述
40MSPS 16 BIT CCD DIGITISER

WM8214 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:SSOP,Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:1.78
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G28
长度:10.2 mm功能数量:1
端子数量:28最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH座面最大高度:2 mm
最大供电电压 (Vsup):3.63 V最小供电电压 (Vsup):2.97 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:5.3 mm

WM8214 数据手册

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WM8214  
w
40MSPS 16-bit CCD Digitiser  
DESCRIPTION  
FEATURES  
16-bit ADC  
The WM8214 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 40MSPS.  
40MSPS conversion rate  
Low power – 390mW typical  
3.3V single supply operation  
Single, 2 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-bit wide multiplexed format and there is also  
an optional single byte output mode, or 4-bit multiplexed  
LEGACY mode.  
Programmable gain (9-bit resolution)  
Programmable offset adjust (8-bit resolution)  
Flexible clamp control with programmable clamp voltage  
Flexible timing, can be made compatible with WM819X  
and WM815X parts.  
8-bit wide multiplexed data output format  
8-bit only output mode  
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.  
4-bit LEGACY multiplexed nibble mode  
Internally generated voltage references  
28-pin SSOP package, pin compatible with WM8199  
Serial control interface  
APPLICATIONS  
Using an analogue supply voltage of 3.3V and a digital  
interface supply of 3.3V, the WM8214 typically only  
consumes 390mW.  
High speed USB2.0 compatible scanners  
Multi-function peripherals  
High-performance CCD sensor interface  
Digital Copiers  
BLOCK DIAGRAM  
VRLC/VBIAS  
RSMP VSMP  
MCLK  
AVDD  
DVDD1 DVDD2  
VRT VRX VRB  
w
CLMP RS VS  
TIMING CONTROL  
WM8214  
VREF/BIAS  
R
8
M
U
X
OFFSET  
DAC  
OEB  
G
B
RINP  
RLC  
RLC  
CDS  
CDS  
PGA  
9
+
+
+
+
I/P SIGNAL  
POLARITY  
ADJUST  
R
G
B
M
U
X
OP[0]  
OP[1]  
OP[2]  
OP[3]  
OP[4]  
OP[5]  
DATA  
O/P  
PORT  
16-  
BIT  
ADC  
M
U
X
GINP  
BINP  
PGA  
9
8
OFFSET  
DAC  
I/P SIGNAL  
POLARITY  
ADJUST  
OP[6]  
OP[7]/SDO  
RLC  
CDS  
+
PGA  
9
+
8
OFFSET  
DAC  
I/P SIGNAL  
POLARITY  
ADJUST  
CONFIGURABLE  
SERIAL  
CONTROL  
SEN  
SCK  
SDI  
RLC  
DAC  
4
INTERFACE  
DGND  
AGND1  
AGND2  
WOLFSON MICROELECTRONICS plc  
Product Preview, March 2004, Rev 1.6  
w :: www.wolfsonmicro.com  
Copyright 2004 Wolfson Microelectronics plc.  

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