AudioWorks™ is a comprehensive portfolio of silicon-proven digital audio cores, licensed by more than 30 companies worldwide. At the heart of the technology are our hard coded and standard audio encoders and decoders: Dolby Digital (AC-3), AAC and MPEG1 layers I/II/III. Our audio interfaces include SPDIF, TDM, I2S and their variations, as well as Asynchronous Sample Rate Converters.
The audio encoder and decoder cores use our proprietary SideWorks™ technology for obtaining high performance while consuming a smaller silicion area and a lower power compared to traditional solutions based on embedded processors and DSPs. With SideWorks we can configure our cores pre-silicon for maximum optimization of resources, and we can reconfigure or program them post-silicon for keeping up with fast evolving standards and upgrades.
The SPDIF family features receivers with fully digital clock and data recovery, dispensing with analog PLLs. Both receiver and transmitter can be configured to support PCM and non-PCM compressed audio formats (AC-3, AAC, DTS, etc), through the many variations of this standard (AES3, IEC61937, SMPTE 337M, IEC 60958).
The multi-channel TDM audio interfaces support up to 128 audio channels, as well as stereo formats such as I2S, Left-Justified or Right-Justified. They can be configured at pre-silicon and/or post-silicon time to support variations of these formats for virtually all vendors.
Our Asynchronous Sample Rate Converters are highly competitive solutions in the market, meeting performance goals with the smallest possible area. Their fully digital frequency tracking mechanism is robust and compact. Common bit width resolutions such as 16, 20 and 24-bit are all supported, as well as common audio sample rates from 8 to 192 kHz.
In general, these IP cores meet specifications while optimizing performance, area and power, and are highly configurable for a multitude of audio standards. Integrating them in a SoC contributes to reduce the overall bill of materials, as these functions typically require external devices. Coreworks will also include new features demanded by customers if they are relevant.