High definition PC audio codec

The IDT 92HD71B features 4 stereo channels, and is compatible with the Intel high definition (HD) audio interface. The audio device provides stereo 24-bit resolution with sample rates up to 192 kHz. The dual digital SPDIF outputs enable simple integration with multi-channel consumer entertainment equipment, including audio integration with system HDMI video. The codec incorporates IDT proprietary technology to achieve digital to audio conversion signal-to-noise ratio fidelity in excess of 100dB. It also includes extensive optimizations to minimize unwanted audio artefacts, such as “pops”, during system power up.



In addition to high-fidelity, low power devices, the IDT PC audio solution provides a flexible, easy-to-customize graphical user interface (GUI), an audio effects designer program enabling system designers to optimize their system characteristics, and numerous audio processing capabilities required for home entertainment, VoIP, or other audio computing applications. As a result, IDT PC audio solutions enable OEM customers to maximize battery life, offer advanced usage models for PC audio, provide their

end-customers the ability to personally manage the quality of their audio experience, and achieve

high-levels of overall audio fidelity, compatible with the most stringent Windows Logo Program fidelity requirements.



The 92HD71B and software supports full-duplex stereo audio and simultaneous VoIP telephony by supporting multiple, independent audio streams. Additionally, the optimized and flexible power

management, including driver optimizations and specialized audio circuitry mitigates pop/click sound anomalies, offering a smoother audio experience. The audio solution provides a mono output for laptop sub-woofer and support for 1.5V and 3.3V high definition audio signalling with run time selection to enable the widest possible range of system designs.