WAU8814YG TR

Overview

The NAU8814YG TR is a low-power, wideband single-channel audio codec manufactured by Nuvoton Technology Corporation. It operates with an analog supply voltage ranging from 2.5V to 3.6V and a digital core voltage as low as 1.71V. The device features a programmable gain amplifier (PGA) with microphone amplifier gain adjustable from -12dB to +35.25dB. It supports standard audio interfaces including I²S and PCM with time slot specification. Key internal components include a 5-band graphic equalizer, automatic level control (ALC) with noise cancellation, and a built-in PLL. The audio path integrates a differential microphone input, a single-ended auxiliary input, a single-ended line output, and an integrated bridge-tied load (BTL) speaker driver.

Feature Summary

• Integrates a 5-band graphic equalizer and automatic level control system with noise cancellation for optimized voice quality.
• Features a programmable gain amplifier allowing flexible microphone sensitivity adjustment across a wide dynamic range.
• Includes an integrated bridge-tied load (BTL) speaker driver and single-ended line output for versatile audio connectivity.
• Supports multiple digital audio interfaces including I²S and PCM with configurable time slots.

Applications

• Voice telephony systems
• Hands-free speakerphones
• VoIP communication devices

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration when sourcing. Confirm the manufacturer designation matches Nuvoton Technology Corporation, as the component was originally developed by Cirrus Logic prior to acquisition. Ensure the operating voltage requirements align with the 2.5V to 3.6V analog supply and 1.71V digital core specifications defined in the official datasheet.

Selection Notes

Select this component for applications requiring a cost-effective, single-channel audio solution with integrated power amplification. The wide supply voltage range and low digital core voltage support battery-powered designs. Verify interface compatibility with the host processor's I²S or PCM controller before integration.

Part Context

The NAU8814 series belongs to Nuvoton's portfolio of low-power audio codecs designed primarily for voice-centric applications. This model combines analog front-end processing with digital filtering capabilities, eliminating the need for external equalization or noise reduction circuits in many standard voice terminal designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the NAU8814 family or other Nuvoton single-channel CODECs. Verify that any substitute maintains the same BTL driver capability and interface protocol support.