About the IA611 Smart Mic Development Kit.
The IA611-RDI-01 is a reference design based on IA611 SmartMic for IoT applications. It enables ultra-low power acoustic event detection, voice keyword detection, and voice commands to develop a voice UI. To accelerate prototyping the SmartMic into an IoT application, the IA611 has been integrated with the Microchip SAM D21 Xplained Pro MCU board.
Ultra-Low Power Voice Wake and Event Detection
The core of the reference design is the IA611 SmartMic designed for ultra-low power in a digital mic package. IA611 supports Knowles VoiceQ, the world’s first “always listening” voice detector capable to automatically adapt its performance to the acoustic environment and enable voice wake keyword/ command. The reference design also includes a second digital mic for beamforming to improve performance if required by the IoT application.
Highly Integrated, All-in-One Kit
Knowles intelligent mic solutions are integrated with several leading MCU and AP suppliers. The kit supports a Microchip SAM D21 Xplained PRO with full support via Atmel Studio 7. It allows for rapid prototyping of IoT designs that use an MCU processor that is already tested, optimized for BOM, and performance. A downloadable extension provides sample code for a simple application and required libraries to develop a VUI pre-integrated with the SmartMic as a peripheral.
DSP Core: Knowles HemiDelta Light
Audio Interfaces: DMIC and I2S/TDM
Control Interfaces: SPI, I2C, UART, available GPIOs
Available Memory: 168 KB (IA611)
Supply Voltage: 1.8v
- IA611 SmartMic with 40MHz, 32-bit floating point DSP. It has 168KB memory available for user applications.
- SPK0641HT4H-1 DMIC serves as 2nd mic for 2-ch voice input capability. It is ideal to support 2-ch voice recognition enhancing algorithm to improve the detection performance.
- Level Shifter is included in the hardware in case the MCU does not support 1.8V interface.
- MCU is an optional part and a low-cost MCU serves as host to control IA611 SmartMic. IA611 firmware will be downloaded from the MCU stored in the flash. Currently, Microchip SAM D21 32-bit MCU is available.
For more detailed information on the IoT and Home Automation IA611 Xplained Pro Development Kit and the full range of Knowles development boards head to the Knowles Portal.
Grant Opens: April 8. Submit your entry here.
Grant Closes: April 29
Grant recipients announced: May 6