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SoC streams four audio channels

Posted: 20 Jun 2011 ?? ?Print Version ?Bookmark and Share

Keywords:wireless? audio? digital streaming?

Texas Instruments Inc. (TI) has launched the second device from its PurePath Wireless family of audio products. The 2.4GHz CC8530 radio frequency (RF) SoC is said to transmit uncompressed wireless audio over a robust RF link, supporting digital streaming for up to four audio channels.

"With the ability to stream two stereo streams from one audio source to several receivers, the CC8530 will enable exciting new use cases for wireless headsets and multichannel home audio applications," said Erling Simensen, TI product marketing manager for wireless audio.

Simensen added that the CC8530 solution frees users of surround sound speaker systems from pulling wires across the house. It also allows headphones to easily switch between two audio streams coming from one stereo system.

Other features of the CC8530 solution include up to four headphones receiving either stereo A or stereo B audio from the same base station; RF protocol, microcontroller, audio codec setup support, application designs; no required software development; and offers free configuration PC software tool.

Further, TI said the device boasts of quality-of-service for digital wireless audio transmission; excellent coexistence with Bluetooth technology, WLAN and other 2.4GHz devices; distributed audio clock for synchronized wireless speakers; low latency for better synchronization between audio and video; no unwanted noise (clicks or pops); and high mean time between dropout (MTBD) as compared to existing solutions.

It also eliminates the sound distortion typically found in competing proprietary systems; offers support for 16bit, 44.1kHz or 48kHz audio without any compression; and is compatible with various TI audio codecs: TLV320AIC3204, TLV320AIC3254, TLV320AIC3256, TLV320AIC3101, class D amplifiers TAS5708, TAS5710, TAS5713, TAS5727, CC2590 range extender and BQ25015 power management device.

The multichannel CC8530 is packaged in a ROHS-compliant, 6 x 6mm QFN-40. TI said pricing starts at $3.95 in 1,000-unit quantities.

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