Audio edge processor for smart microphones
Development of an audio DSP that for cost and form factor reasons required a very compact die and included multiple switchable power domains as well as voltage and frequency scaling.
Features
Tensilica audio DSP
Voltage and frequency scaling down to 0.65v
multiple switchable power domains
low-power SRAM
PLL, oscillator and audio interfaces
Process
28 nm
DFT
Full-Scan, MBIST and Boundary-scan
Tool-chain
Synopsys: DC, ICC, Primtime, StarRC, Primerail, Formality, Verdi
Mentor: Tessent, Calibre
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