Nuvoton’s new emPowerAudio™ line extends into the VoIP audio market. The series is a high-performance, cost-effective CODECs designed specifically for VoIP phones, hands-free kits and general-purpose speakerphones. It delivers exceptional flexibility in performance and optimization of power consumption, while providing designers with development and test tools that can dramatically accelerate time to market. The series features a robust, high-fidelity, 24-bit signal architecture delivering 93dB digital-to-analog converter (DAC) signal to noise ratio (SNR) and 91dB analog-to-digital converter (ADC) SNR at audio sampling rates from 8kHz to 48kHz. The series operate at an industry-leading 6uA standby current, which greatly reduces power consumption and extends battery life in hand-held applications.

The CODECs reduces external component requirements by integrating a speaker driver, headset driver and a configurable low-noise, microphone-biasing circuit. It also includes two microphone inputs, a single auxiliary input and two dedicated analog outputs. Industry-standard digital interfaces include I2S and PCM with programmable time slot assignments. The WAU8814 includes a 5-band equalizer and is available in a small 24-QFN (4x4mm) footprint. In addition, the CODECs are AEC-Q100-compliant for automotive applications. The new line of mono audio CODEC features a powerful development platform and simple graphical user interface development tools enable designers to efficiently generate new designs, giving them interactive programmability and predefined configuration paths for test and development.