SR80 系列音频 AI MCU
概述
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
产品特性
音频接口
- 模拟输入:4× ADC(106 dB 动态范围),8× DMIC
- 模拟输出:2× DAC(113 dB 动态范围,120 dB 信噪比),立体声 Class-AB + Class-G 耳机放大器
- 监测与偏置:10 位监测 ADC,3.0V 麦克风偏置电压
数字接口
- USB 2.0 高速接口
- 音频与串行接口:3× I2S,3× UART
- 控制接口:I3C(主机/从机),I2C(主机/从机,支持时钟延展)
- SPI 接口:2× SPI + QSPI(主机/从机)
- GPIO 与调试:GPIO,JTAG
- 连接支持:SDIO(Wi-Fi® / 蓝牙® 模块)
- LED 控制:PWM LED
前沿一站式算法
- AI 音频功能:AI 降噪、ENC 音频 AI、Synaptics 超低功耗边缘 NPU 进行 AI 处理
- 噪声控制:混合 ANC,环境融合(Ambient Fusion)
- 音频架构:双 DSP 核心,音频低延迟引擎(LLE)
MCU
- MCU 核心:1 个 250 MHz Arm® Cortex®-M33 MCU 核心
- 功能:脱机处理、传感器融合、系统管理
标准音频 DSP
- Tensilica® HiFi 5 DSP 核心,用于第三方算法(传统音频 DSP)
相关产品
架构图与功能








- SR80 Key Features
- Peripherals
- AI Engines
- CPU
- Memory
- Power Management
- Security
- Audio
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