- Continuing to drive audiophile levels of sound quality to affordable consumer price points, Texas Instruments
Incorporated (TI) today introduced the next generation in its AureusTM family of
high-performance audio digital signal processors (DSPs) for applications requiring multi-channel decoding, including
audio/video (A/V) and DVD receivers, home-theater-in-a-box systems (HTIBs), set-top boxes, mini-compos,
high-definition televisions (HDTV) and automotive navigation/multimedia systems. These devices also are ideal for
applications requiring audio decoding and simultaneous high-speed encoding, such as DVD recorders, home music
servers and automotive jukeboxes.
With 50 percent performance
improvement at the same price point as the previous generation of Aureus products, the 300 MHz TMS320DA710 and 250
MHz TMS320DA708 deliver one of the industry's most versatile, cost-effective DSPs and Development Environment for
high performance, high-quality multi-channel audio applications. For example, a complete 7.1 system, including AC3
or DTS decoding, Dolby ProLogic IIx or NEO:6 matrix decoding, bass management, and delay, takes only 22 percent of
the available performance of a DA710 processor.
More Headroom for Better Quality
Audio, More Customization
With nearly 80 percent of the available performance for customization
and differentiation, OEMs can implement product-differentiating features, including:
quality reverb algorithms for more life-like room simulations
- Advanced equalization techniques
for better room acoustic correction
- True dual-zone decoding and post-processing for multi-room
- Simultaneous multi-channel audio decode and up to 16 times real-time encode ("CD
ripping") for server applications, eliminating the need for a separate encoder and associated buffer
Architectural enhancements specifically designed for high-performance audio
processing enable efficient use of the extensive headroom available on DA7xx devices. New mixed-precision
instructions allow for higher quality bass management and equalization algorithms without the performance impact of
using double-precision. An audio-optimized Dual Data Movement Accelerator (DMAX) performs efficient non-sequential
external memory accesses and circular buffer management, improving the performance of long delay line algorithms,
such as reverb. Additionally, the CPU core and memory subsystem were enhanced and the amount of parallel processing
was increased, resulting in higher performance in audio applications.
Ease of Use
DA7xx devices are backed by production-quality software, including
TI's Performance Audio Software Library, an end-to-end system software solution that includes:
- Industry-standard decoders and post-processors from Dolby, DTS and THX
- MP3, Windows Media
Audio (WMA) and ATRAC3plus encoder and decoder modules
- Double-precision (64-bit) Bass
- The TI Effects Library, which includes configurable modules for Graphical EQ, Room
Simulators and Matrix Decoders
- Optimized filter blocks for building custom
- Bitstream auto-detection, system framework and I/O drivers.
The Performance Audio Software Library is based on TI's XDAIS algorithm
standard, which allows OEMs and third parties to create plug-and-play algorithms. Numerous third parties are
supporting the Performance Audio Library, including Audyssey, SRS Labs, Waves and Neural Surround. This enables OEMs
to more efficiently develop and customize audio algorithms, getting products to market faster, quickly spinning
derivative products by adding new features, and reducing development costs in general.
DA7xx is the second generation in the Aureus family of audio processors and confirms TI's commitment to the
multi-channel audio market. The first-generation Aureus DSP (DA6xx) was selected by Dolby for its Pro Logic IIx
enhanced surround sound development platform and has been designed into equipment by the world's leading audio
OEMs, including: Alpine, Clarion, JVC, Onkyo and Harman Kardon.
The DA7xx family is code compatible
with TI's previous generations of the Aureus family and built upon TI's C6000TM DSP
architecture. The DA7xx devices leverage TI's investment in C6000 tools including the award-winning Code Composer
StudioTM IDE. Developers can get started today with DA710 and DA708 EVMs from Momentum
Data Systems ). The EVMs include digital I/O, multi-channel analog I/O and all the other system components required
to prototype a typical A/V receiver system.
"TI's Aureus family of DSPs continues to push
the boundaries of quality and performance for home theater processing," said Brian Towne, Senior Vice President at
DTS, Inc. "DTS is pleased that TI has designed a high performance and cost effective processor package capable of
implementing our new DTS-HD technology. DTS-HD will feature 7.1 lossless audio and is backward compatible with
existing DTS decoders. DTS is proud to count TI as one of its key launch partners."
Availability and Pricing
Currently sampling, both devices are slated for volume
production in Q3 2005. The 250 MHz TMS320DA708 costs $13.52 each and comes in a 144-pin TQFP package. The 300 MHz
TMS320DA710 costs $21.63 and comes in a 256-ball BGA package, both in 10,000 unit or more