The ADI solution includes a complete hardware and firmware reference design. It can be scaled for high performance with the ADSP-BF706 or entry level applications with the ADAU1450 Digital Audio Processor. The ADSP-BF706 can also be used to create in-cabin engine sound to contribute to an improved driving experience for vehicle owners. The ADSP-BF706 uses memory mapped quad SPI memory providing faster and simpler access to the stored audio files used to create the engine sound. It can access up to 24 WAV files simultaneously, compared to conventional products that can typically access only five.
ADI’s Sigma Studio Integrated Development Environment (IDE) enables OEMs to graphically tune the audio sound when using the ADAU1450. This allows sound engineers with minimal programming experience to optimize audio performance while reducing development time. A new release of Sigma Studio supporting the ADSP-BF706 is due later this year. In addition, a low-cost CAN software stack runs on the ADSP-BF706 to help developers quickly build automotive-grade prototypes.
Specifications for the ADSP-BF706 detail a Blackfin+ core with up to 400-MHz performance, dual 16-bit or single 32-bit MAC support per cycle, 16-bit complex MAC and many other instruction set enhancements. The solution includes 136KB of L1 SRAM with multi-parity-bit protection (64KB instruction, 64KB data, 8KB scratchpad), 1MByte on-chip L2 SRAM with ECC protection, and 512KByte On-chip L2 ROM. Key peripherals include USB2.0 HS OTG, 2x CAN2.0B, ePPI Video I/O, 2x SPORTs (w/I2S), 2xQuad-SPI / 1xDual-SPI (w/ Host mode), 12C, 2xUART, and SD/SDIO/MMC (4-bit).
Packaging for the ADSPP-BF706 is 88-Lead LFCSP, while the audio processor ADAU1450 is a 72-Lead LFCSPc chip.
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