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WM8233 PDF даташит

Спецификация WM8233 изготовлена ​​​​«Wolfson Microelectronics» и имеет функцию, называемую «70MSPS 6-Channel AFE».

Детали детали

Номер произв WM8233
Описание 70MSPS 6-Channel AFE
Производители Wolfson Microelectronics
логотип Wolfson Microelectronics логотип 

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WM8233 Даташит, Описание, Даташиты
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WM8233
70MSPS 6-Channel AFE with Sensor Timing Generation and
LVDS/CMOS Data Output
DESCRIPTION
The WM8233 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 35MSPS.
The device has six analogue signal processing channels
each of which contains Reset Level Clamping, Correlated
Double Sampling (also Sample and Hold), Programmable
Gain, Automatic Gain Control (AGC) and Offset adjust
functions.
The output from each of these channels is time multiplexed,
in pairs, into three high-speed 16-bit Analogue to Digital
Converters. The digital data is available in a variety of
output formats via the flexible data port.
The WM8233 has a user selectable LVDS or CMOS output
architecture.
An internal 8-bit DAC is supplied for internal reference level
generation. This may be used during CDS to reference CIS
signals or during Clamping to clamp CCD signals. An
external reference level may also be supplied. ADC
references are generated internally, ensuring optimum
performance from the device.
A programmable automatic Black-Level Calibration function
is available to adjust the DC offset of the output data.
The WM8233 features a sensor timing clock generator for
both CCD and CIS sensors. The clock generator can accept
a slow or fast reference clock input and also has a flexible
timing adjustment function for output timing clocks to allow
use of many different sensors.
FEATURES
70MSPS conversion rate
16 bit ADC resolution
Current consumption – 350mA
3.3V single supply operation
Sample and hold /correlated double sampling
Programmable offset adjust (8-bit resolution)
Flexible clamp timing
Pixel clamp / line clamp mode
Programmable clamp voltage
Programmable CIS/CCD timing generator
Internally generated voltage references
Compliant for Spread Spectrum Clock
LVDS/CMOS output options
- LVDS 5pair 490MHz 35-bit data
- CMOS 90MHz output maximum
Complete on chip clock generator. MCLK 5MHz to 35MHz
Internal timing adjustment
Automatic Gain Control
Automatic Black Level Calibration
56-lead QFN package 8mm x 8mm
Serial control interface
APPLICATIONS
Digital copiers
USB2.0 compatible scanners
Multi-function peripherals
High-speed CCD/CIS sensor interface
WOLFSON MICROELECTRONICS plc
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Product Brief, February 2012, Rev 3.0
Copyright 2012 Wolfson Microelectronics plc









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WM8233 Даташит, Описание, Даташиты
WM8233
BLOCK DIAGRAM
Product Brief
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Product Brief, Rev 3.0, February 2012
2









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WM8233 Даташит, Описание, Даташиты
WM8233
TABLE OF CONTENTS
Product Brief
DESCRIPTION....................................................................................................... 1 
FEATURES ............................................................................................................ 1 
APPLICATIONS..................................................................................................... 1 
BLOCK DIAGRAM ................................................................................................ 2 
TABLE OF CONTENTS......................................................................................... 3 
PIN CONFIGURATION .......................................................................................... 4 
ORDERING INFORMATION.................................................................................. 4 
PIN DESCRIPTION................................................................................................ 5 
ABSOLUTE MAXIMUM RATINGS ........................................................................ 7 
RECOMMENDED OPERATING CONDITIONS..................................................... 7 
ELECTRICAL CHARACTERISTICS ..................................................................... 8 
GENERAL CHARACTERISTICS..................................................................................... 9 
APPLICATIONS INFORMATION ........................................................................ 11 
RECOMMENDED EXTERNAL COMPONENTS ........................................................... 11 
RECOMMENDED EXTERNAL COMPONENT VALUES .............................................. 12 
PACKAGE DIMENSIONS.................................................................................... 13 
IMPORTANT NOTICE ......................................................................................... 14 
ADDRESS: .................................................................................................................... 14 
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Product Brief, Rev 3.0, February 2012
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