The Cadence® Tensilica® HiFi 3z DSP raises the performance and energy efficiency over the HiFi 3 DSP when executing complex algorithms. Target applications include mobile, home entertainment, and automotive. As audio requirements for everything from smartphones to home stereo receivers to multi-speaker automotive configurations are being driven by advanced post-processing, the HiFi 3z DSP provides the right level of performance or such tasks while keeping the energy consumption at the lowest level.

Key Benefits

DSP Performance

Significant (20%) performance boost over HiFi 3 DSP

Energy Efficiency

Highest energy efficiency (mW/MMAC) of HiFi DSP family for high-complexity algorithms

Codec Performance

Well suited for object-based audio codecs, pre- and post-processing, and running VoLTE (EVS) speech codecs


Examples include wideband speech codecs for mobile, noise suppression in home and car, and immersive gaming with 32 streams of audio

ISO 26262 Compliant

Certified as ASIL compliant and equipped with both hardware and software safety mechanisms


  • Flexible VLIW Bundle Instruction sizes
  • Up to 2 times more16x16 MACs compared to HiFi 3 DSP
  • On average 20% performance boost over HiFi 3 DSP
VLIW Slots 3


Fixed-Point MACs per Cycle

32x32 2
24x24 4
32x16 4
16x16 up to 8
Accumulator 64-bit
FPU (Optional) Integrated 2-way SIMD Vector FPU
ITU Intrinsic Support Yes
Circular Buffer Support 1
Bitstream VLE/VLD Yes
User-Defined Instructions Yes


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