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Product Detailed Parameters
- Description：IC MON AUD CODEC SPKR DVR 28SSOP
- Series：emPowerAudio™
- Mfr：Nuvoton Technology Corporation
- Package：Tape & Reel (TR)
- Type：Audio
- Data Interface：I2S, I2S, Serial, SPI™
- Resolution (Bits)：-
- Sigma Delta：No
- S/N Ratio, ADCs / DACs (db) Typ：91 / 93
- Dynamic Range, ADCs / DACs (db) Typ：-
- Voltage - Supply, Analog：2.5V ~ 3.6V
- Voltage - Supply, Digital：1.71V ~ 1.95V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：28-SSOP
- Grade：-
- Qualification：-
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Overview
The WAU8812RG TR is a mono audio CODEC with an integrated BTL speaker driver, designed for voice telephony applications. It features a 24-bit signal processing architecture with a DAC SNR of 93dB and ADC SNR of 91dB. The device supports variable sample rates from 8kHz to 48kHz and includes programmable microphone amplifiers, ALC, and digital filters. It operates on analog supplies of 2.5V to 3.6V and digital core supplies as low as 1.71V. The 'R' suffix indicates the 28-pin SSOP package, while 'TR' denotes tape and reel packaging.
Feature Summary
- Integrated BTL speaker driver capable of delivering up to 0.8W into an 8-ohm load at 5V.
- Supports I2S and PCM interfaces with time slot assignment, alongside SPI and 2-Wire control.
- Includes programmable Automatic Level Control (ALC) with noise gate and programmable gain stages.
- Features on-chip PLL and dedicated voice-band digital filtering for optimized audio performance.
Applications
- VoIP Telephones
- Conference speaker-phones
- Mobile Telephone Hands-free Kits
Procurement Notes
Verify that the ordering suffix 'TR' corresponds to the specific tape and reel packaging configuration required for automated assembly processes. Confirm the 'R' suffix aligns with the 28-pin SSOP package type needed for the target PCB footprint. Ensure compatibility with existing supply voltage rails before finalizing procurement orders.
Selection Notes
Select this component when a cost-effective mono codec with integrated power output is required. It is suitable for systems needing high dynamic range in both recording and playback paths. Consider the industrial temperature range if operating in harsh environments. Verify interface compatibility with the host processor's digital audio protocols.
Part Context
This part belongs to Nuvoton's emPowerAudio™ series, which focuses on low-power, wideband audio solutions. The WAU8812 is specifically engineered for voice-centric applications rather than high-fidelity music reproduction. It integrates multiple audio functions into a single chip to reduce system complexity and bill of materials costs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative mono audio CODECs with similar pinouts and electrical specifications if direct replacements are necessary.
FAQ
What does the 'R' suffix indicate in the WAU8812RG TR part number?
The 'R' suffix indicates that the device is housed in a 28-pin SSOP package.
Can the WAU8812 support stereo audio output?
No, the WAU8812 is a mono audio CODEC with a single-ended line output and a BTL speaker driver.
What is the minimum digital supply voltage for the WAU8812?
The digital core can operate at a voltage as low as 1.71V to save power.
