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Transceiver promises CD-quality audio, zero click noise

Posted: 01 Jun 2010 ?? ?Print Version ?Bookmark and Share

Keywords:audio transceiver? wireless application? interface?

Texas Instruments Inc. has launched the first device in the family of PurePath wireless audio products for consumer, portable and high-end audio applications, such as wireless headphones and wireless speakers.

The CC8520 is an audio transceiver featuring a 2.4GHz SoC that transmits uncompressed CD-quality wireless audio over a RF link with no unwanted noise or dropouts. The CC8520 simplifies implementation of wireless audio while reducing the customer's BOM cost by 50 percent compared to competitive products.

"TI has applied extensive design expertise in both digital audio and low-power RF, working closely with key customers, to deliver a turnkey wireless audio solution that many major audio customers are already designing into their new systems," said Laurent Giai-Miniet, general manager of TI's low-power RF business unit. "The CC8520 solution includes best-in-class hardware, software and development kits to streamline the process of eliminating cables in audio designs and to drive high-performance wireless digital audio into more consumer applications, such as headphones, headsets, speakers, subwoofers and home theater systems."

The audio transceiver features complete integrated solution with RF protocol and audio codec setup support, application designs and a free PurePath Configurator PC software tool. The device does not require microcontroller or software development, making it a flexible, low-cost solution with fast time-to-market.

The CC8520 high QoS for digital wireless audio transmission and does not have unwanted noise (clicks or pops) and high mean time between dropout compared to existing solutions. The device is compatible with Bluetooth, WLAN and other 2.4GHz devices and delivers low latency for better synchronization between audio and video. The product also eliminates sound distortion typically found in competing proprietary systems using compression techniques.

The transceiver supports 16bit, 44.1kHz or 48kHz audio without any compression. It is compatible with wide variety of TI audio codecs (TLV320AIC3101), DACs (PCM1754), ADCs (TLV320ADC3001) and audio amplifiers (TPA6140A2, TAS5713) using I?S and ?C interface support.

The two-channel CC8520 is available in a RoHS-compliant 6mm x 6mm QFN-40 and pricing starts at $3.75 in 1,000-unit quantities. Future devices in the family will include the CC8521 (two channels with USB), CC8530 (three channels) and CC8531 (three channels with USB).

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