Summary of KNOWLES IA611 SMARTMIC VOICE WAKE AUDIO PROCESSOR
Knowles IA611 SmartMic Voice Wake Audio Processor combines an always-on voice wake and Voice ID keyword detector with a two-second buffer and SiSonic MEMS microphone in a mini top-port package. It includes a programmable DSP with 248 kB RAM, ultra-low-power acoustic activity detector, SPI/I2C/UART interfaces, integrated power tree from 1.8V, and delivers high acoustic performance and low latency for fast, power-efficient voice-triggered systems.
Parts used in the Knowles IA611 SmartMic Voice Wake Audio Processor:
- Knowles IA611 SmartMic Voice Wake Audio Processor (SPK 4.00 x 3.00 x 1.30mm package)
- Integrated SiSonic MEMS microphone (high-performance, top-port)
- On-chip programmable DSP with 248 kB RAM
- Two-second audio buffer
- Acoustic Activity Detector (AAD)
- Interfaces: SPI
- Interfaces: I2C
- Interfaces: UART
- Integrated power tree supporting single 1.8V supply
- SDK and low-power developer platform (firmware/software)
Knowles IA611 SmartMic Voice Wake Audio Processor features an “always-on” Processor providing a Voice Wake and Voice ID keyword detector, a two-second buffer, and Knowles’ proven high performance acoustic SiSonic™ MEMS microphone technology in a single, miniature, top-port package.
The Knowles IA611 SmartMic Voice Wake Audio Processor offers flexibility by supporting the most relevant audio and data interfaces. The IA611 provides integrated programmable DSP with 248kBytes of RAM available for customers and 3rd party algorithms, enabling unlimited creativity. The solution pushes the system performance to ultra-low-power with its custom core design and accelerates time to market with its highly integrated combination of hardware, software, and firmware.
Features
- High-accuracy Voice Wake and Voice ID keyword recognition to wake-up any system from a trigger phrase
- Minimum latency when burst out two-second audio buffer using SPI
- Ultra-low-power “always on” acoustic activity
- Detector (AAD) capable waking the embedded DSP
- Interrupt signal to the host processor when a voice keyword trigger is detected
- Integrated power tree from a single 1.8V supply
- Extra flexibility with I2C/UART interfaces
- 248kB RAM, 160MFLOPS, 43MHz, 32-bit complex valued floating-point ALU, low-power open developer platform with SDK
- High-performance acoustic SiSonic MEMS with ±1dB matched sensitivity, 65.5dB SNR and 132.5dB SPL AOP
- Packaged in SPK 4.00 x 3.00 x 1.30mm
Read more: KNOWLES IA611 SMARTMIC VOICE WAKE AUDIO PROCESSOR
- What keyword detection capabilities does the IA611 offer?
It provides high-accuracy Voice Wake and Voice ID keyword recognition to wake a system from a trigger phrase. - Can the IA611 operate always-on with low power?
Yes, it features ultra-low-power always-on acoustic activity monitoring. - How much RAM is available for customer and third-party algorithms?
The IA611 provides 248 kBytes of RAM for customers and third-party algorithms. - What audio interfaces does the IA611 support for data transfer?
It supports SPI and also offers extra flexibility with I2C and UART interfaces. - Does the IA611 include an audio buffer and how is it accessed?
Yes, it includes a two-second audio buffer with minimum latency when burst out via SPI. - How does the IA611 notify the host processor when a keyword is detected?
It provides an interrupt signal to the host processor when a voice keyword trigger is detected. - What supply voltage does the IA611 require?
It has an integrated power tree designed to operate from a single 1.8V supply. - What acoustic performance does the integrated MEMS microphone deliver?
The SiSonic MEMS microphone offers ±1 dB matched sensitivity, 65.5 dB SNR, and 132.5 dB SPL AOP. - What processing performance does the IA611 DSP provide?
The integrated DSP provides 160 MFLOPS, a 43 MHz 32-bit complex valued floating-point ALU, and an open developer platform with SDK.
