WM8234GEFL/RV Integrated Circuit Chip 16-Bit Analog Front End Digitizer IC 6 Channel AFE

The WM8234GEFL/RV is a 16-bit analog front end/digitizer IC designed to process and digitize analog output signals from CCD sensors or Contact Image Sensors (CIS) at pixel sample rates up to 23MSPS.

This IC features six analog signal processing channels, each containing:

• Reset level clamping
• Correlated double sampling (sample and hold)
• Programmable gain
• Automatic Gain Control (AGC)
• Offset adjust functions

• 70MSPS conversion rate
• 16-bit ADC resolution
• Current consumption - 280mA
• 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
• Complete on chip clock generator (MCLK 5MHz to 23MHz)
• Internal timing adjustment
• Automatic Gain Control
• Automatic Black Level Calibration
• 56-lead QFN package 7mm x 7mm
• Serial control interface

• Digital copiers
• USB2.0 compatible scanners
• Multi-function peripherals
• High-speed CCD/CIS sensor interface