Description
WM8199 20MSPS 16-bit CCD Digitiser .
The WM8199 is a 16-bit analogue front end/digitiser IC which processes and digitises the analogue output signals from CCD sensors or Contact Image Sen.
Features
* 16-bit ADC
* 20MSPS conversion rate
* 30MSPS conversion rate at 8-bits
* Low power
* 358mW typical
* 5V single supply or 5V/3.3V dual supply operation
* Single or 3 channel operation
* Correlated double sampling
* Programmable gain (8-bit resolution)
* P
Applications
* Flatbed and sheetfeed scanners
* USB compatible scanners
* Multi-function peripherals
* High-performance CCD sensor interface
BLOCK DIAGRAM
VRLC/VBIAS
VSMP MCLK
AVDD DVDD1 DVDD2
VRT VRX VRB
RINP GINP
CL RLC RLC
RS VS
M U X
TIMING CONTROL
w
WM8199
CDS
RM 8 GU
X B
OFFSET
