SR80 Series Audio AI MCUs
Overview
The Synaptics® Astra™ SR80 Series of Audio AI MCUs deliver industry-leading performance with ultra-low-power consumption, enabling the next generation of AI-enhanced, voice-driven, consumer and enterprise-grade IoT devices.
The AI MCUs combine an Arm® Cortex®-M33 MCU, Synaptics DSP cores, a Synaptics NPU, a Tensilica® HiFi 5 DSP, a built-in CODEC, high-speed USB, a rich set of I/O interfaces and advanced security features into a powerful platform designed for state-of-the-art wired and true-wireless (TWS) headsets, earbuds, voice-enabled smart-home devices, soundbars, and conferencing systems.
Turnkey AI-accelerated algorithms such as environmental noise cancellation (ENC) designed to exceed Microsoft® Teams™ version 5 Premium requirements, hybrid active noise cancellation (ANC), and speech and sound recognition, deliver natural, responsive voice experiences and human-machine interactions in real-world environments.
Open software and design collateral including the Astra SDK, audio performance tuning tools, reference designs, and evaluation hardware are supported on the SR80 Series to accelerate product development
Documentation
| Type | Title | Revision Date |
|---|---|---|
| Product Brief | SR80 SERIES AUDIO AI MCUS - FAMILY PRODUCT BRIEF | |
| Datasheet | SR80 SERIES AUDIO AI MCUS DATASHEET |
Features
Audio Interfaces
- Analog Inputs: 4× ADCs (106 dB dynamic range), 8× DMICs
- Analog Outputs: 2× DAC (113 dB dynamic range, 120 dB SNR), Stereo Class-AB + G headphone amplifier
- Monitoring & Bias: 10-bit monitor ADC, 3.0V microphone bias
Digital Interfaces
- USB 2.0 High Speed
- Audio & Serial Interfaces: 3× I2S, 3× UART
- Control Interfaces: I3C (host/target), I2C (host/target, clock stretching)
- SPI Interfaces: 2× SPI + QSPI (host/target)
- GPIO & Debug: GPIOs, JTAG
- Connectivity Support: SDIO (Wi-Fi® / Bluetooth® modules)
- LED Control: PWM LED
Advanced Turnkey Algorithms
- AI Audio Features: AI Noise Reduction, ENC Audio AI, Synaptics ULP Edge NPU for AI processing
- Noise Control: Hybrid ANC, Ambient Fusion
- Audio Architecture: Dual DSP cores, Low Latency Engine (LLE) for audio
MCU
- MCU Core: One 250-MHz Arm® Cortex®-M33 MCU core
- Functions: Off-host processing, sensor fusion, systems management
Classical Audio DSP
- Tensilica® HiFi 5 DSP core for third-party algorithms
Related Products
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SR100 Series
High-performance AI MCUs with tiered inferencing makes context-aware computing a reality across the smart home, the factory floor, and at work. Featuring Arm® Cortex®-M55 cores with Helium™ Technology, Arm Ethos™-U55 neural network processors (NPU), dual MIPI camera interfaces, image and voice processing, and multi-tier power efficiency.
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SRW1500 Series
The SRW1500 Series combines an Arm® Cortex®-M52 processor with an Arm® Ethos™-U55 NPU to deliver efficient edge AI for real-time IoT applications. It enables always-on sensing, voice trigger detection, sound classification, and AI-enhanced Wi-Fi® sensing, while offering low power, integrated wireless connectivity, and SDK support for FreeRTOS™ and Zephyr®.
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Machina Micro
The Synaptics Astra Machina Micro developer kit enables rapid prototyping for the Synaptics SR100 Series of high-performance, context-aware, multimodal AI MCUs. The dev kit brings interfaces and IO ranging from qSPI for storage, M.2 for connectivity, digital mics for voice processing, and MIPI-CSI for multiple camera inputs. The SR100 series of MCUs - including SR110, SR105, and SR102 deliver AI-accelerated performance at all power levels in combination with ultra low-power multimodal sensing.
Block Diagram and Features
- SR80 Key Features
- Peripherals
- AI Engines
- CPU
- Memory
- Power Management
- Security
- Audio
Resources
Explore tools and helpful insights.
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