DAB/MP2 Decoder for HiFi Audio DSPs

Products » Audio DSP » Audio Codecs » DAB/MP2

Tensilica’s Digital Audio Broadcasting (DAB) and MP2 Decoder Application Package

Digital Audio Broadcasting (DAB), is a digital radio broadcast technology deployed in many European countries, Australia, Canada and China.  DAB enables more stations in a given amount of frequency spectrum compared to analog FM along with better immunity to noise and multipath fading in mobile environments.

MP2 (MPEG-1 Layer I/II) is part of both the DAB and DVB standards and is used in digital radio, STB, Video CD, Super Video CD and HDV camcorders.

For anyone designing a chip for home or automobile digital radio systems, STB, optical disc or HDV camcorder products Tensilica's HiFi 2 Audio DSP with the DAB/MP2 decoder provides a proven, approved, drop-in audio solution.

The decoder is a fixed-point implementation written in C and available in object code. Included documentation describes how to incorporate the decoder into a system. System developers can integrate a Dolby Digital Plus decoder into an SOC without the need for additional optimizations or software development. The same Xtensa HiFi 2 Audio Engine is used for other Tensilica audio codecs, enabling the development of highly optimized multi-standard audio SOC designs.


Feature Summary

  • Implements MPEG-1 and MPEG-2 Layer 1 and Layer 2 stereo decoding
  • Fully compliant with ISO/IEC 11172-3, ISO/IEC 13818-3

Specifications


Decoder Clock Rate* MHz Code Size (ROM) Table Size (ROM) RAM** I/O Buffer RAM
192 kbps,
48 KHz		 6.6 MHz 10 Kbytes 3.8 Kbytes 9.3 Kbytes 6.5 Kbytes

* Average MHz required for single-cycle memory.
** RAM includes persistent, stack and scratch.
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