WM8231GEFL/V

Overview

The WM8231GEFL/V is a 16-bit analogue front-end and digitiser IC designed for CCD and CIS sensors. It features three signal processing channels with Reset Level Clamping, Correlated Double Sampling, Programmable Gain, and Automatic Gain Control. The device integrates three high-speed 16-bit ADCs operating at up to 105 MSPS total conversion rate (35 MSPS per channel). It includes an internal sensor timing clock generator and offers user-selectable LVDS or CMOS data output architectures. Powered by a single 3.3V supply, it consumes approximately 230mA in active mode.

Feature Summary

• Three-channel AFE with 16-bit resolution and 105 MSPS aggregate conversion rate
• Integrated sensor timing generator supporting CCD and CIS interfaces
• Configurable LVDS (up to 315 MHz) or CMOS (90 MHz max) digital outputs
• On-chip Automatic Black Level Calibration and Automatic Gain Control

Applications

• Digital copiers
• USB 2.0 compatible scanners
• Multi-function peripherals
• High-speed CCD/CIS sensor interface systems

Procurement Notes

Verify the specific ordering suffix when purchasing. The 'GEFL/V' variant denotes a Pb-free component in a 56-lead QFN package with a -40°C to +85°C temperature range. The 'RV' suffix indicates tape and reel packaging with a quantity of 2,200 units. Confirm moisture sensitivity level MSL3 requirements for storage and handling prior to assembly.

Selection Notes

Select this component for applications requiring multi-channel sensor digitization with integrated timing generation. Ensure the host system supports either LVDS or CMOS output formats as required by the design. Verify that the 3.3V single-supply operation aligns with the target power budget, noting the typical 230mA current consumption during active scanning operations.

Part Context

This part belongs to the WM8231 family of analogue front ends. The GEFL/V designation specifies the lead-free, commercial/industrial temperature grade version housed in an 8mm x 8mm x 0.85mm QFN package. It serves as a direct interface solution between optical sensors and digital processing units in imaging hardware.

Replacement Considerations

The WM8231GEFL/RV is the identical functional alternative packaged in tape and reel format for automated assembly. No other cross-model substitutes are documented in the provided datasheet.