WM8234GEFL/V

Overview

The WM8234GEFL/V is a 16-bit analogue front end and digitiser IC designed for processing CCD and CIS sensor signals. It features six analogue channels with Reset Level Clamping, Correlated Double Sampling, Programmable Gain, Automatic Gain Control, and Offset Adjust. Data is time-multiplexed into two high-speed 16-bit ADCs operating at up to 70 MSPS, supporting per-channel sample rates of 23 MSPS. The device includes an internal sensor timing generator and offers selectable LVDS or CMOS digital output interfaces.

Feature Summary

• Six-channel AFE with RLC, CDS, PGA, AGC, and offset adjust
• Dual 16-bit ADCs with 70 MSPS conversion rate
• Integrated programmable sensor timing clock generator
• Selectable LVDS (5-pair) or CMOS data output architecture

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation. The 'V' suffix indicates a standard reel configuration, while 'RV' denotes tape and reel packaging with a quantity of 2,200 units. Confirm moisture sensitivity level (MSL3) and peak soldering temperature requirements (260°C) during assembly planning.

Selection Notes

Select this component for applications requiring multi-channel signal conditioning from CCD or CIS sensors. Ensure the system supports the required 3.3V single supply operation and accommodates the 280mA typical current consumption. Verify that the host controller can manage the serial control interface and supports either the LVDS or CMOS output modes based on board layout constraints.

Part Context

This part belongs to the WM8233/WM8234 family of high-performance analogue front ends. While the WM8233 offers similar functionality, the WM8234 provides enhanced timing generation capabilities and specific pin configurations optimized for direct sensor interfacing. Both devices share the same 56-lead QFN package dimensions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Cirrus Logic application notes for potential cross-references within the company's portfolio.