21ic CEVA introduces CEVA-TeakLite-4, the industry's most powerful low-power, scalable 32-bit DSP architecture for advanced audio and voice applications. CEVA TeakLite 4 addresses the increasingly complex needs of the market for voice pre-processing and audio post-processing algorithms and multi-channel audio codecs for the smartphone, mobile computing and digital home devices markets.
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Based on the industry-wide and proven CEVA-TeakLite family of features, CEVA-TeakLite-4 is a highly flexible architecture that is based on innovative intelligent power management technology and supports custom expansion components. The most sensitive design of area and power. For example, compared to the CEVA-TeakLite-III DSP that uses Dolby Mobile 3+ post-processing for MP3 decoding, the CEVA-TeakLite-4 has a 25% smaller chip area and a 30% reduction in power consumption.
Increased audio and speech (processing) complexity
The 32-bit CEVA-TeakLite-4 DSP architecture addresses the major challenges faced by the semiconductor industry in achieving high-quality audio and voice performance. For example, to provide better speech intelligibility in noisy environments, advanced preprocessing techniques can reduce background noise and improve speech intelligibility, while also requiring computationally intensive algorithms. Similarly, the voice performance required for voice-over-LTE (VoLTE) and voice-over-IP (VoIP) applications to switch to wideband speech codecs is much higher than the traditional narrowband speech codecs currently in use. In mobile devices and home entertainment devices, audio post-processing can significantly improve the consumer experience, providing virtual surround sound, speaker correction, bass extension effects, and more. The processing power required to achieve this level of performance is much more complex than the processing power currently available for 16-bit and 24-bit DSPs, making 32-bit audio processing technology stand out.
Eran Briman, vice president of marketing at CEVA, said: "When designing CEVA-TeakLite-4, we took advantage of the wealth of knowledge and experience gained from the first generation of 32-bit audio processors over the past five years, with a view to significantly improving the performance of the new architecture. And power efficiency. Therefore, the CEVA-TeakLite-4 architecture meets the specific requirements of any advanced audio and voice processing SoC by selecting a scalable and flexible DSP core that shares a common instruction set architecture, software ecosystem and tools. In addition, the CEVA-TeakLite-4 architecture integrates our second-generation intelligent power management technology, PSU 2.0, to provide the lowest possible power consumption for each specific application."
The CEVA-TeakLite-4 architecture was initially offered in four (mutually) compatible DSP family cores, providing designers with a range of application-oriented cost/performance options to meet different application needs. The CEVA-TL410 and CEVA-TL411 DSPs provide a single 32x32-bit multiplier and two 32x32-bit multipliers respectively. For voice, audio codecs and hubs applications, CEVA-TL420 and CEVA-TL421 DSPs add full-cache memory. The system interfaces with the AXI system, and the target market is the application processor and home audio SoC. With a variable 10-stage pipeline architecture, the CEVA-TeakLite-4 architecture can be extended from an ultra-low-power area optimized implementation with less than 100K gates to a 1.5GHz solution for 28nm processes for high-end SoCs. All CEVA-TeakLite-4 DSPs feature CEVA's second-generation power conditioning unit (PSU 2.0) that supports dynamic clocking and voltage regulation, as well as finer granularity within the processor, memory, bus, and system resources.
Linley Gwennap, principal analyst at The Linley Group, said: "In order to remain competitive, OEMs must continually improve the voice and audio experience of mobile phones, consumer products and automotive users. From future smartphones to smart TVs and in-car entertainment systems, the industry expects every Multimedia devices provide noise-free voice and high-quality audio in any environment. The CEVA-TeakLite-4 is designed to meet all of these different applications with a single architecture that is highly power efficient and capable of advanced audio and voice processing. For example, the architecture supports one to four 32-bit and 16-bit MACs with up to 128-bit data memory bandwidth, surpassing any of today's competitors' audio solutions, providing customers with a wide range of options to meet their specific needs."
The CEVA-TeakLite-4 is the CEVA second-generation 32-bit DSP architecture following the industry-proven CEVA-TeakLite-III DSP. It is a fourth-generation DSP architecture and enjoys the technical foundation of the CEVA-TeakLite DSP architecture. CEVA-TeakLite is the most successful licensable DSP family in the history of the semiconductor industry, with more than 2 billion chip shipments, more than 100 licensed vendors, 25 active ecosystem partners and nearly 100 audio and voice codecs. CEVA-TeakLite-4 is fully compatible with previous generations of CEVA-TeakLite architecture, ensuring that all voice and audio codec combinations optimized under the CEVA-TeakLite architecture can run on CEVA-TeakLite-4 with greater efficiency . By using code-compatible cores, a highly optimized software library and a unified development infrastructure for a single tool chain, customers can significantly reduce software development costs and make their investment in software continue to be leveraged in future products.
Streamlined software development
Supported by CEVA-ToolboxTM, the CEVA-TeakLite-4 DSP is a complete software development environment for programming the entire architecture using C. The integrated simulator provides accurate and efficient verification of the entire system, including the memory subsystem. In addition, CEVA-Toolbox includes a software library, a graphical debugger and a complete optimization tool chain called CEVA Application Optimizer. The application optimizer enables developers to automatically and manually optimize C code.
Supply
The first products of the CEVA-TeakLite-4 DSP series will be licensed in the second and third quarters of this year.
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