WM8234GEFL/RV

Overview

The WM8234GEFL/RV is a 16-bit analog front-end and digitizer IC designed for CCD and CIS sensors. It processes signals at up to 23MSPS per channel using six signal processing paths featuring Reset Level Clamping, Correlated Double Sampling, Programmable Gain, Automatic Gain Control, and Offset Adjust. Two high-speed 16-bit ADCs time-multiplex the data. The device supports LVDS or CMOS outputs, includes an internal sensor timing generator, and operates on a single 3.3V supply with a current consumption of 280mA.

Feature Summary

• Six-channel AFE with 16-bit resolution and 70MSPS conversion rate
• Integrated sensor timing clock generator for CCD/CIS
• Configurable LVDS (5-pair) or CMOS output interfaces
• Automatic Black Level Calibration and Automatic Gain Control

Applications

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

Procurement Notes

Verify the ordering suffix RV indicates tape and reel packaging with a quantity of 2,200 units. Confirm the temperature range is -40°C to +85°C and the package is a 56-lead QFN (7 x 7 x 0.85 mm). Ensure moisture sensitivity level MSL3 compliance is required for storage conditions prior to assembly.

Selection Notes

Select this component when interfacing with CCD or CIS sensors requiring integrated timing generation and signal conditioning. The device supports pixel sample rates up to 23MSPS per channel. Consider the available output formats: LVDS for high-speed transmission or CMOS for lower frequency applications up to 90MHz.

Part Context

The WM8234 belongs to the Cirrus Logic WM823x series of analog front ends. It is functionally similar to the WM8233 (70MSPS 6-channel) and WM8235 (70MSPS 9-channel), offering specific integration for multi-channel image sensor applications with built-in gain control and calibration features.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.