Digital Assistant

Cirrus Logic offers a comprehensive portfolio of ultra low power smart codecs, hi-performance MEMS microphones and SoundClear® algorithms to enhance voice interaction with digital assistants. Multi-mic voice capture suppresses noise and reverberation that degrade digital assistant accuracy and high performance AECs enable the user to reliably barge-in during loud playback.

Digital Assistant
Development Kit for Amazon AVS

Highlighted components are offered by Cirrus Logic.

System Features


Multi-Mic Vioce Capture

Multi-Mic Voice Capture


Noise reduction and echo cancellation regardless of the surrounding environment.


Barge In Capabilities

Barge In Capabilities


Hands-free control even when your device is playing another audio driven application.


Hi-Fi Playback

Hi-Fi Playback


Integrated multichannel 24-bit hi-fi audio hub enable our smart codecs to deliver high quality audio for any application.



Compatible Products

Recommended

Portable Codecs

  • CS42L51

    Low Power Stereo Codec with Headphone Amplifier

Smart Codecs

  • CS47L15

    SmartHIFI Smart Codec With Advanced Audio Features for Mid-Tier Smartphones

    SoundClear® compatible
  • CS47L24

    Ultra Compact, Low Power Smart Codec with Dual Core DSP

    SoundClear® compatible
  • CS47L35

    Smart Codec with Low Power Audio DSP

    SoundClear® compatible
  • CS47L90

    Low Power, Highly Integrated Audio Codec Featuring SmartHIFI for Mobile Playback

    SoundClear® compatible
  • WM8281

    Low Power Smart Codec with Ambient Noise Cancellation and Echo Cancellation

    SoundClear® compatible

MEMS microphones

  • CS7250B

    High Performance Digital Microphone

  • CS7257B

    High Performance SoundWire Microphone

  • CS7331

    Miniature Bottom Port Analog MEMS Microphone

  • WM7121

    Top Port Analog Microphone

  • WM7132

    Bottom Port Analog Microphone

  • WM7216

    Low Power Top Port Digital Microphone

  • WM7236

    Bottom Port Digital Microphone

Class D Speaker Amplifiers

  • CS35L32

    Boosted Hybrid Class D Amplifier With Integrated Dual LED Drivers

Request to Buy Dev Kit

Cirrus Logic CRD1569-1 Voice Capture Development Kit for Amazon AVS.
Digi-Key (Part #598-2471-KIT-ND) »


Highlighted components are offered by Cirrus Logic.

System Features


Two-Mic Voice Capture Reference Board

Two-Mic Voice Capture Reference Board


Features the Cirrus Logic CS47L24 dual core, low power smart codec and two CS7250B digital MEMS microphones, plus SoundClear® algorithms for voice capture, noise suppression, and echo cancellation.


Raspberry Pi 3 Board

Raspberry Pi 3 Board


Runs Cirrus Logic Control Console with AVS client, Sensory’s TrulyHandsfree™ wake word engine tuned to “Alexa”, SoundClear® tuning and diagnostics. Provides LAN, WLAN and hotspot connectivity for headless operation.


Control Console

Control Console


Intuitive GUI replaces the need for Raspbian line commands saving hours of setup and start up time. Enables both headless (no display, keyboard or mouse), Wi-Fi and hotspot operation to emulate real product connectivity. Enables remote control, diagnostics and tuning through any internet browser.


Travel Case and Demo/Eval Platform

Travel Case and Demo/Eval Platform


Durable case with custom anti-static foam inserts to hold and protect all kit components while traveling or in storage. Lid folds flat for use as eval/demo platform holding all components in place and avoiding speaker vibration.


International Power Supply

International Power Supply


Full 2.5 A @5v to power entire system plus RPi3 peripherals including international travel adapter set. Alternatively, 5v rechargeable battery supply (not included) can be used to emulate battery powered products.


8GB SD Card

8GB SD Card


High performance Micro SD Card preloaded with OS and all required firmware.


Compact, Passive Speaker Box

Compact, Passive Speaker Box


Enables full kit functionality without additional components. Simulates the audio experience of AVS enabled products with small integrated speakers. Can be replaced by actual transducer selected for product. Alternatively, just plug any amplified speaker into voice capture boards stereo jack.


Ribbon Cable

Ribbon Cable


Allows voice capture and RPi3 boards to be separated instead of stacked when required to fit in true form factor prototype and demonstration platforms.



Compatible Products

Recommended

Smart Codecs

  • CS47L24

    Ultra Compact, Low Power Smart Codec with Dual Core DSP

    SoundClear® compatible

MEMS microphones

  • CS7250B

    High Performance Digital Microphone


Documents and Licensing


Contact sales and support