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WM8192, WM8192CDW/RV, WM8196CDS

Table of contents:
Info of WM8192
Info of WM8192CDW/RV
Info of WM8196CDS

WM8192, WM8192CDW/RV, WM8196CDS Selling Leads, Datasheet

Package Cooled:SMD D/C:07+

WM8192, WM8192CDW/RV, WM8196CDS Datasheet download

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Part Number: WM8192

MFG: --

Package Cooled: SMD

D/C: 07+

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WM8192 General Description

The WM8192 is a 16-bit analogue front end/digitiser ICwhich processes and digitises the analogue output signalsfrom CCD sensors or Contact Image Sensors (CIS) at pixelsample rates of up to 6MSPS.

The device includes three analogue signal processingchannels each of which contains Reset Level Clamping,Correlated Double Sampling and Programmable Gain andOffset adjust functions. Three multiplexers allow singlechannel processing. The output from each of thesechannels is time multiplexed into a single high-speed 16-bitAnalogue to Digital Converter. The digital output data isavailable in 8 or 4-bit wide multiplexed format.

An internal 4-bit DAC is supplied for internal reference levelgeneration. This may be used during CDS to reference CISsignals or during Reset Level Clamping to clamp CCDsignals. An external reference level may also be supplied.ADC references are generated internally, ensuring optimumperformance from the device.

Using an analogue supply voltage of 5V and a digitalinterface supply of either 5V or 3.3V, the WM8192 typicallyonly consumes 240mW when operating from a single5V supply.

WM8192 Maximum Ratings

CONDITION	MIN	MAX
Digital supply voltage: DVDD	GND - 0.3V	GND + 7V
Analogue supply voltage: AVDD	GND - 0.3V	GND + 7V
Digital ground: DGND. Analogue ground: AGND1, AGND2	GND - 0.3V	GND + 0.3V
Digital inputs: MCLK, VSMP, CLAMP	GND - 0.3V	GND + 0.3V
Digital outputs: DOUT	GND - 0.3V	DVDD2 + 0.3V
Analogue inputs: VINM, VINP, VREFIN	GND - 0.3V	AVDD + 0.3V
Reference pins: VRT, VRB	GND - 0.3V	AVDD + 0.3V
Operating temperature range: T_A	0°C	+70°C
Storage temperature	-65°C	+150°C
Package body temperature (soldering, 10 seconds)		+240°C
Package body temperature (soldering, 2 minutes)		+183°C

WM8192 Features

• 16-bit ADC
• 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
• 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
• Serial control interface

WM8192 Typical Application

• Flatbed and sheetfeed scanners
• USB compatible scanners
• Multi-function peripherals
• High-performance CCD sensor interface

WM8192 Connection Diagram

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