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Product Detailed Parameters
- Description：IC MON AUD CODEC SPKR DVR 32QFN
- Series：emPowerAudio™
- Mfr：Nuvoton Technology Corporation
- Package：Tape & Reel (TR)
- Type：Stereo Audio
- Data Interface：I2S
- Resolution (Bits)：24 b
- Sigma Delta：Yes
- S/N Ratio, ADCs / DACs (db) Typ：90 / 94
- Dynamic Range, ADCs / DACs (db) Typ：-
- Voltage - Supply, Analog：2.5V ~ 3.6V
- Voltage - Supply, Digital：1.65V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN
- Supplier Device Package：32-QFN-EP (5x5)
- Grade：-
- Qualification：-
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Overview
The WAU8822YG TR is a 24-bit stereo audio codec with an integrated speaker driver, packaged in a 32-lead QFN. It features 90dB SNR for the ADC and 94dB SNR for the DAC. The device includes a BTL speaker driver capable of delivering 1W into an 8Ω load and a headphone driver providing 40mW into 16Ω. Analog supply voltage ranges from 2.5V to 3.6V, while the digital core operates at 1.65V. It supports sample rates from 8kHz to 48kHz via I2S or PCM interfaces.
Feature Summary
- Integrated DSP functions including a 5-band equalizer, 3-D audio enhancement, automatic level control, and audio limiter.
- Built-in fractional PLL generates accurate audio sample rate clocks from system clock frequencies such as 12MHz and 13MHz.
- Flexible power management allows powering down specific sub-sections under software control to conserve energy.
- Supports both master and slave operation for digital audio interfaces.
Applications
- Personal Media Players
- Smartphones
- Portable Game Players
Procurement Notes
Verify the exact revision number against the datasheet before ordering. Confirm that the 'TR' suffix indicates tape and reel packaging. Ensure the component meets automotive AEC-Q100 requirements if applicable to your design specifications.
Selection Notes
Select this component when high-fidelity stereo audio processing is required alongside direct loudspeaker driving capabilities. The integrated DSP reduces external component count. Verify that the 32-lead QFN package fits within the available PCB area constraints.
Part Context
This part belongs to the emPowerAudio series by Nuvoton Technology Corporation. It is designed for portable consumer electronics requiring low power consumption and high audio quality. The device simplifies system implementation by integrating multiple audio functions into a single chip.
Replacement Considerations
NAU8822A
FAQ
What is the maximum output power for the speaker driver?
The BTL speaker driver can deliver 1 Watt into an 8Ω load.
Does the WAU8822 support digital microphone inputs?
No, it integrates preamps for stereo differential microphones but does not support digital microphone inputs directly.
