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Texas Instruments (TI) today announced the enhanced AureusTM family of audio digital signal processors that deliver faster memory interfaces and higher CPU performance for DA710 and DA708 devices, further driving audio innovation in emerging markets . In line with today's trend toward more applications for blue laser technology in home theater systems, TI's Aureus processor is the first to support Dolby® digital-compatible output technology, enabling next-generation optical discs (HD DVD and Blu-ray Disc) players to deliver 640 kbps Dolby Digital encodes surround sound signals and enables compatible playback with any Dolby Digital Audio/Video Receiver (AVR) with digital audio input (S/PDIF or fiber optic input).TI's Aureus family of processors is designed for a wide range of home theater and automotive products that require multi-channel decoding and high-speed encoding, such as AVR, HDTV, home media server, car jukebox, MP3 player docking station and emerging HD DVD and Blu-ray Disc devices, etc.
According to Will Strauss, President of Forward Concepts, “TI is undoubtedly the leading manufacturer of high-end DSPs in the A/V receiver market. Aureus DSP delivers superior performance, differentiated features, and space for further upgrades, which fully reflects TI's leading position in the market. TI is outstanding in understanding and meeting market needs, able to solve specific problems faced by developers in a timely manner, and support new formats quickly and efficiently."
The Aureus family of DSPs, including the upgraded DA710 and DA708, is ideal for HD DVD or Blu-ray Disc players for new applications such as audio reverb and re-encoding. TI's multi-channel audio encoders are immediately available in volume production and support Dolby Digital compatible output technology, which provides a convenient, low-cost way for consumer electronics manufacturers to ensure that tens of millions of devices on the market are available. The traditional audio and video receivers with digital functions can successfully play Dolby Digital Surround signals, which strongly supports the development of new markets.
The DA7xx DSP enables the same device to implement both reverb and re-encoding functions. The reverb function is essential for next-generation disc players that support dual audio streaming. Mixing the secondary audio stream with the main audio stream (such as a movie track) enables new applications, such as downloading comments or advertising content from other directors over a broadband Internet connection. Even with different sample rates, the DA7xx DSP can mix the first and second audio streams and even add a third audio stream to the control product and support “one-touch†control. The DA7xx DSP also supports a variety of enhanced audio for virtual or headphone surround sound.
In addition to single-chip solutions for reverberation and re-encoding, TI offers a complete audio processing solution for next-generation optical disc players, and will support Dolby TrueHD, Dolby Digital Plus and DTS-HD in the future.
The new enhancements increase the SDRAM access bandwidth to 133 MHz, the DA710's processor speeds to 300 MHz and 275 MHz, and the DA708's processor speed to 266 MHz. By increasing the access speed of the external memory, the processing delay of the delay buffer can be shortened, thereby improving the overall codec performance and audio quality.
The new DA710 device with 133 MHz memory interface is available now, in an industry standard GDH package. At 10,000-piece quantities, the 300 MHz DA710 is priced at $21.63, and the 275 MHz DA710 is at $16.05. The 266 MHz DA708 with a 133 MHz memory interface is priced at $13.52 and is available in an RFP package.
Both the DA710 and DA708 are Q100 certified to meet automotive applications across a wide range of operating temperatures. The DA710 for automotive applications has a frequency of 275 MHz, while the DA708 has a frequency of 250 MHz. Both devices feature an enhanced 133 MHz SDRAM interface.
These listed devices are certified for Dolby Digital Compatible Output. In addition to supporting emerging HD standards, Aureus offers a comprehensive range of development tools and codecs, including industry-standard decoders and post processors from Dolby, DTS, SRS Labs, THX and Microsoft. In addition, TI offers a library of effects, a Perfect Playback compressed audio booster, and the framework and I/O software needed to build a complete audio system.
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