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Codec boosts audio fidelity in PCs, supports VoIP

Posted: 18 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:high-definition PC audio codec? HDMI? power management?

Integrated Device Technology Inc. has introduced a low-power, high-definition (HD) PC audio codec designed to help bring home-entertainment-level audio fidelity to enterprise desktop and notebook systems, while supporting mobile user capabilities such as advanced processing for VoIP.

IDT 92HD71B features four stereo channels and is compatible with the Intel HD audio interface. The audio device provides stereo 24bit resolution with sample rates up to 192kHz. The dual digital SPDIF outputs enable simple integration with multichannel consumer entertainment equipment, including audio integration with system HDMI video. The codec incorporates IDT proprietary technology to achieve digital to audio conversion SNR fidelity in excess of 100dB. It also includes extensive optimizations to minimize unwanted audio artifacts, such as 'pops,' during system power up.

The IDT 92HD71B PC audio codec offers an easy-to-customize 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.

The 92HD71B 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 92HD71B provides a mono output for laptop sub-woofer and support for 1.5V and 3.3 HD audio signaling with run time selection to enable a wide range of system designs.

Sampling in 48-pin QFP and 48-pad QFN RoHS packages, the 92HD71B device is priced at $1.62 for 10,000 units.

- Ismini Scouras

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