SigmaTel Introduces New High-Fidelity, High-Definition Audio Solutions for Notebook PCs

SigmaTel Introduces New High-Fidelity, High-Definition Audio Solutions for Notebook PCs

SigmaTel, Inc.has introduced a new family of High-Fidelity High-Definition (HD) Audio codecs allowing for digital microphone capabilities and the ability to implement audio and modem functionality directly on the PC motherboard. The new audio solutions, the SigmaTel STAC9202 and STAC9251 feature digital microphone capabilities and the STAC9250 provides support for the implementation of an audio-modem-on-motherboard (AMoM) solution when combined with the Silicon Laboratories Si3080 Line Side modem Direct Access Arrangement (DAA) chip. The new High Fidelity HD Audio codecs enable notebook PC manufacturers to add advanced capabilities to their systems while keeping costs manageable.

New Audio Codecs Provide Digital Microphone and Audio-Modem-on-Motherboard Technology Supporting Improved Voice Performance and More Cost-effective Notebook Computer Systems

The STAC9202 and STAC9251 make it easy for PC manufacturers and designers to design notebook computers with built-in digital microphones that improve voice input for applications such as Voice over Internet Protocol (VoIP) telephone service, voice instant messaging (IM) and speech recognition. Digital microphones offer high-definition audio input and unlike analog microphones, do not require shielded cabling, reducing design complexity and assembly costs.

The digital microphones are also smaller enabling optimal acoustic placement in the LCD bezel reducing noise present in typical analog microphone implementations. To develop a complete digital microphone solution, SigmaTel worked closely with digital microphone leader Akustica.