Product category:
Design and Development Hardware
News Release from: Kane Computing | Subject: DA-60x-Kit
Edited by the Electronicstalk Editorial
Team on 17 May 2004
Evaluation for DSP-based A/V receiver
The DA-60x-Kit is an evaluation system with software framework for A/V receiver and audio applications, manufactured by Momentum Data Systems.
The DA-60x-Kit is an evaluation system with software framework for A/V receiver and audio applications, manufactured by Momentum Data Systems The DA-60x-Kit is an off the shelf audio processing platform for evaluating the latest low cost DA601 and DA607 A/V receiver devices from Texas Instruments
This article was originally published on Electronicstalk on 10 Apr 2002 at 8.00am (UK)
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The kit consists of three cards: an audio card, a processor card and an SPI to PC host interface card.
The audio card includes four stereo 24bit audio inputs and outputs, digital audio input and McASP, SPI, GPIO and I2C (DA601 only) interfaces to the processor card the PC interface card.
The processor card includes DA601 or DA607 DSP, 8Mbyte SDRAM and 4Mbyte boot Flash.
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Texas Instruments' DA6xx series VLIW DSPs are the only low cost consumer oriented surround sound decoders for Dolby and DTS that support native 32 and 64bit floating point capability.
The DA-60x-Kit uses the Texas Instruments DA601 or DA607 VLIW processor.
Executing multiple instructions per clock cycle (up to 225MHz), these parts provide the computational power (1800MIPS/1350MFLOPS) to perform all I/O and decoder operations with enough CPU bandwidth left over for additional post decode sound field processing.
The use of floating point arithmetic throughout overcomes the inherent dynamic range limitations of fixed-point (integer) processors.
The DA60x has four floating point ALUs and two floating point multipliers, so there is no performance penalty associated with preferred floating point operations.
Unlike fixed decoder devices, the DA60x uses software architecture based on the Performance Audio Framework.
This open and extensible framework allows for software customisation (eg to add specific audio processing), as well as in-the-field software upgrades to support new decoder standards.
The system's device drivers automatically recognise the type of source encoding and automatically switch operation to the correct decoder with no artefacts in the output audio stream.
The stream manager architecture simplifies development of post processing/effects such as room equalisation, dynamic range compression, and surround modes.
The DA6xx software is based on the Open Audio System using the Performance Audio Framework (PA/F).
This framework creates a modular software environment that simplifies product customisation.
Processing can be inserted into the chain without disrupting the environment.
The DA-60x Performance Audio Framework Software includes decoders, matrix processing and post processing functions.
The Performance Audio software is configured and downloaded using Texas Instruments' standard Code Composer Studio development environment.
The A/V receiver code is controlled via a Windows application talking to the evaluation system via a RS232 port.
Kane Computing is a Texas Instruments Third Party Partner, specialising in TI tools and can supply the DA-60x-Kit plus Code Composer Studio software tools and emulators. Request a free brochure from Kane Computing ...
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