NAU8315B01VG

Overview

The NAU8315B01VG is a mono Class-D audio amplifier manufactured by Nuvoton Technology Corporation. It operates on a supply voltage range of 2.5V to 5.25V and delivers up to 3.2W into a 4-ohm load or 1.8W into an 8-ohm load. The device features an I2S digital audio interface with support for sampling rates from 8kHz to 96kHz. It utilizes a 12-WLCSP package measuring 1.95x1.118mm, suitable for surface mount installation. The operational temperature range spans from -40°C to 85°C.

Feature Summary

• Digital I2S/PCM input interface eliminates the need for external DACs
• Filterless design reduces component count and board space requirements
• Low quiescent current and shutdown modes optimize battery life in portable devices
• High power supply rejection ratio ensures clean audio output under varying supply conditions

Applications

• Wireless virtual reality headphones
• Game controllers
• Smart remote controls
• Notebooks and tablets
• Personal media players

Procurement Notes

Verify the specific suffix B01 against the official datasheet to confirm pinout and functional compatibility. Ensure the procurement channel provides RoHS3 compliance documentation. Confirm moisture sensitivity level (MSL 3) handling procedures are followed during storage and assembly to prevent damage.

Selection Notes

Select this component for applications requiring direct digital audio input without analog conversion stages. The filterless architecture simplifies PCB layout compared to traditional Class-D amplifiers. Consider the small WLCSP footprint when designing for space-constrained portable electronics where high efficiency and low noise are critical.

Part Context

This part belongs to the NAU8315 family of high-efficiency mono audio amplifiers. The series is designed for portable consumer electronics, offering high performance with minimal external components. Nuvoton integrates digital interfaces directly into the amplifier stage to streamline system design for mobile and wearable devices.

Replacement Considerations

NAU8315B31VG is a compatible variant within the same family. Verify pin-to-pin compatibility and electrical specifications before substitution. Ensure the replacement part meets the same package and thermal requirements.