WM8350GEB/RV

Overview

The WM8350GEB/RV is an integrated audio and power management subsystem designed for portable multimedia systems. It combines a stereo Hi-Fi CODEC with comprehensive power generation capabilities in a single chip. The audio section features DAC and ADC signal-to-noise ratios of 95dB at 48kHz, supporting sample rates from 8kHz to 48kHz. Power management includes six programmable DC-DC converters (four buck, two boost), four LDO regulators, and a current limit switch. It integrates a single-cell lithium battery charger with thermal protection and programmable charge parameters. The device operates on analog supplies of 2.5V to 3.6V and digital supplies of 1.71V to 3.6V, housed in a 129-ball TFBGA package measuring 7x7mm.

Feature Summary

• Integrated stereo audio CODEC with programmable headphone drivers and microphone preamplifiers
• Comprehensive power management with multiple DC-DC buck and boost converters alongside LDO regulators
• Built-in single-cell lithium battery charger with configurable fast charging and thermal regulation
• On-chip real-time clock with wake-up alarm and autonomous power source selection logic

Applications

• Portable audio and media players
• Portable navigation devices
• Single-cell lithium battery powered portable systems

Procurement Notes

Verify the component marking against the official datasheet specifications to confirm authenticity. Ensure the ordering suffix matches the required package variant and temperature range. Cross-reference the manufacturer's latest production data revision to confirm active status and compliance with current environmental standards before finalizing procurement orders.

Selection Notes

Select this component when a unified solution for high-fidelity audio processing and complex power sequencing is required. It is suitable for designs needing independent control over multiple voltage rails and integrated battery management. Consider the 129-ball BGA package constraints during PCB layout planning to ensure adequate thermal dissipation and signal integrity for the dense pinout configuration.

Part Context

The WM8350 belongs to the Wolfson AudioPlus series of integrated audio and power management solutions. This family targets the mobile consumer electronics market by reducing bill-of-materials counts through consolidation. The specific GEB/RV designation indicates the standard commercial grade version within the broader WM8350 product line, sharing core functionality with other variants while differing in packaging or minor electrical characteristics.

Replacement Considerations

WM8350GEB/V