SigmaTel launches 8-channel audio codec

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SigmaTel today announced the launch of a new line of 8-channel cinema-quality audio codecs for fast-growing consumer audio applications such as AV receivers, surround sound processors, set-top boxes, DVD recorders, Hi-Fi systems And applications such as PC sound cards. STAC9480/9481 is the new SGTV58xx high-fidelity TV audio processor series, and SigmaTel has extended its leading PC audio codec technology to another new product in the consumer audio field.

The STAC9480/9481 audio codec not only provides DAC signal-to-noise ratios of up to 110dB, but also features digital interface connectivity, SPDIF transceiver functionality and extremely flexible data exchange to ensure component interconnection. The best audio fidelity. The STAC9481 supports ADAT® fiber optic interfaces for professional audio equipment.

Steve Beatty, senior vice president of Integrated Components at SigmaTel, said: "With STAC9480/9481, developers can quickly develop products that meet the 8-channel entertainment experience that today's consumers need. Our high level of audio performance, system integration, flexibility Interfaces and even support for extensions help customers reduce system costs and speed time-to-market."

Samples are now available for STAC9480/9481. SigmaTel also offers the STAC9460/9462 high-performance audio codec family that supports both 2-channel and 6-channel high-performance audio equipment.


Main features of STAC9480/9481

High performance • 8-channel cinema-quality audio codec with up to 110dB DAC signal-to-noise ratio • 24-bit resolution audio up to 192kHz sampling rate • Digital interface supporting up to 8 uncompressed channels

High integration • 8-channel cinema quality DAC with microphone amplification and 2-channel ADC
• SPDIF / ADAT interface (STAC9481 supports ADAT)
• Digital exchange of audio data

High flexibility • Digital exchange of audio data for flexible audio system design
o 4 DAC pairs for 4 I2S channels, plus SPDIF output for one I2S channel
o ADC pair corresponding to one I2S channel, SPDIF input corresponding to one I2S channel
o ADAT input, which can replace I2S as a system interface • Digital interface supporting up to 8 uncompressed channels

Other features • Support for external resonance suppression circuits • +3.3V digital power supply, +5V or +6.5V analog power supply • 64-pin QFN package for various environmental standards

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