Skyworks Solutions introduced the SKY4680x family of automotive audio DSPs at electronica 2026 in Munich. Available with one, two, or three Cadence Tensilica HiFi 5 cores, the devices give automakers and Tier 1 suppliers a common software environment for systems ranging from basic sound enhancement to immersive multichannel playback. The family combines flexible digital audio routing, on-chip memory, and support for custom algorithms and edge AI.
The choice of core count gives platform teams a way to match processing capacity to each trim while reusing software and development tools across vehicle programs. Skyworks specifies more than 1.2GHz of aggregate processing capacity for the three-core device, and some variants include a customer-programmable Arm Cortex-M3 microcontroller. Cadence designed the HiFi 5 architecture for conventional audio and speech processing as well as neural-network workloads. Skyworks provides a DSP framework, a graphical environment for building and tuning signal flows, and an SDK for integrating third-party audio IP. Integration with Audio Weaver is also planned. That combination gives developers room to carry their own algorithms across a vehicle line and add processing where the speaker layout or feature set calls for it.
The chip can also serve as an audio routing hub. Nine I²S/TDM input ports and nine output ports support up to 32 channels in each direction, while hardware sample-rate converters allow streams from different clock domains to enter the same processing system. This allows to combine sources and distribute processed audio to multiple amplifier channels. Skyworks integrates 8MB of SRAM with error correction in a 12×12mm, 88-pin QFN package. Where the application fits in on-chip memory, designers can omit external DRAM and save board area, power, and component cost.
The SKY4680x family extends a platform strategy that Skyworks has already applied to broadcast reception. Its Si479xx hybrid software-defined radio tuners pair with Si469xx coprocessors that can demodulate and decode up to four digital radio channels, with support for HD Radio, DAB/DAB+, DRM, and CDR. As audioXpress previously reported, that partition lets suppliers adapt a common board design to different regional radio standards and performance tiers. The new DSP family takes the same idea into cabin audio, where the variables are processing load, channel count, and the software features each trim needs.
With the SKY4680x family, Skyworks enters the standalone automotive audio DSP market. Some of its Si479xx automotive tuners already had an integrated audio DSP, but it was its 2018 acquisition of Avnera that brought audio, voice, and speech-processing technology into the company. The new family of DSP devices allows OEMs and Tier 1 suppliers to design for cabin audio processing and routing independently of the radio receiver.
At electronica 2026, Skyworks is showing two uses for the platform. One demo turns a stereo source into a multichannel listening experience, while the other runs a Skyworks-developed siren detector locally on the DSP. The detector brings the company’s work in embedded audio AI into the car. Its earlier AI Noise Suppression technology was developed to improve speech intelligibility, and AI Dialog Boost, shown at CES 2025, separates speech from music and effects so it can be remixed during playback. Engineering samples and evaluation boards for the SKY4680x are available now, and Skyworks is demonstrating the family in Hall C4, Booth 440.
Skyworks and Qorvo Merger
Skyworks completed its merger with Qorvo on October 5, 2026. The deal strengthens its smartphone radio-frequency (RF) business and gives it a broader portfolio in analog chips and power management. The strategic shift is toward a business less exposed to Apple and smartphone cycles, with a larger presence in automotive, defense, aerospace, broadband, and industrial IoT.
With this merger, Skyworks closes some of the gap with Broadcom in mobile RF and becomes a stronger supplier of standalone RF components. Qorvo’s acoustic filters help Skyworks handle more frequency bands as phones move toward 5G-Advanced and 6G. Gallium nitride (GaN) amplifiers deepen its capabilities in defense and wireless infrastructure, while Qorvo’s broadband and Wi-Fi components expand its reach in networking.
www.qorvo.com
www.skyworksinc.com
Source: audioxpress.com
