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IA611 Xplained Pro Hardware User
Guide
External Use
Document #AUD-ESP-00444-V2.0
This document describes the hardware implementation of the Knowles IA611
Xplained Pro Extension Kit (PN IA611-RDI-01). The extension kit is the IA611
Reference Design for IoT designed to be used with the Microchip SAM D21
Explained Pro MCU.
Knowles Confidential
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Table of Contents
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Summary of Contents for Knowles IA611 Xplained Pro
- Page 1 Guide External Use Document #AUD-ESP-00444-V2.0 This document describes the hardware implementation of the Knowles IA611 Xplained Pro Extension Kit (PN IA611-RDI-01). The extension kit is the IA611 Reference Design for IoT designed to be used with the Microchip SAM D21 Explained Pro MCU.
- Page 2 Audience, Inc. Knowles is a registered trademark of Knowles Corporation. IA611, IA61x and the Knowles logo are service marks or trademarks of Knowles, LLC.
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Page 3: Table Of Contents
1.3 Product Overview ................6 1.3.1 Hardware Components ..............6 1.3.2 Jumper Settings ................7 Chapter 2: IA611 Xplained Pro Hardware ..........8 2.1 IA611 HW Connection ................ 8 Chapter 3: Schematic ................10 3.1 Bill of Materials ................. 11 Knowles Confidential AUD-ESP-00444-V2.0... - Page 4 IA611 Xplained Pro Hardware User Guide List of Figures Figure 1 The IA611 Digital Smart Microphone ........... 5 Figure 2 IA611 Xplained Pro Connected to SAM D21 Xplained Pro Development Board..................6 Figure 3 IA611 Xplained Pro Board ............6 Figure 4 Jumper Settings for Interfaces .............
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Page 5: Chapter 1: Introduction
IA611 Xplained Pro Hardware User Guide Chapter 1: Introduction The Knowles IA611 Reference Design for IoT is based on IA611 Smart Mic. The IA611 enables ultra-low power voice and event detection including voice UI supporting keywords and voice commands and acoustic event detection. To achieve low power and compact design, it is designed to be implemented with a readily available MCU board. -
Page 6: Product Overview
IA611 Xplained Pro Hardware User Guide Figure 2 IA611 Xplained Pro Connected to SAM D21 Xplained Pro Development Board. 1.3 Product Overview 1.3.1 Hardware Components Figure 3 IA611 Xplained Pro Board The IA611 Xplained Pro Development Board contains the following hardware: Knowles Confidential AUD-ESP-00444-V2.0... -
Page 7: Jumper Settings
1.3.2 Jumper Settings Figure 4 Jumper Settings for Interfaces The IA611 Xplained Pro Development Board contains three sets of jumpers to allow changing of the interface used to send commands and control the IA611. Figure 4 shows the location of the jumpers for each of the interfaces. The default interface is UART and shown in green. -
Page 8: Chapter 2: Ia611 Xplained Pro Hardware
The IA611 Xplained Pro development board is connected to the SAM D21 development board through the EXT connector. The IA611 Xplained Pro board uses a UART for the communication to the DSP integrated inside the microphone. The UART connects the IA611 to the SAM D21. - Page 9 IA611 through the level shifter. The GPIOs can be used for signaling from the microphone to the MCU. Since the IA611 only operates at 1.8V, the IA611 Xplained Pro board contains a 1.8V LDO to generate the necessary voltage for the microphones and the level shifter.
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Page 10: Chapter 3: Schematic
IA611 Xplained Pro Hardware User Guide Chapter 3: Schematic Figure 6 Schematic of the Knowles IA611 Xplained Pro Board Knowles Confidential AUD-ESP-00444-V2.0 Page 10... -
Page 11: Bill Of Materials
IA611 Xplained Pro Hardware User Guide 3.1 Bill of Materials Manufacturer Part Part Value Device Number CL10B105KA8NFNC 1.0uF C-EUC0603 CL10B103KO8NNNC 0.01uF C-EUC0603 CL10B105KA8NFNC 1.0uF C-EUC0603 CL10B105KA8NFNC 1.0uF C-EUC0603 CL21B105KA8NFNC 1.0uF C-EUC0603 CL10B475KQ8NQNC 4.7uF C-EUC0603 0.1uF C-EUC0603 CL21B104KACNNNC 0.1uF C-EUC0603 CL21B104KACNNNC... - Page 12 IA611 Xplained Pro Hardware User Guide Knowles Confidential AUD-ESP-00444-V2.0 Page 12...
- Page 13 IA611 Xplained Pro Hardware User Guide Revision History The following lists the changes made since the previous version of this document. Version Revision Date Author(s) Comments 1/26/2018 Popper/Cawley Release 1.0.1 2/20/2018 Cawley Update DMIC and graphics. 1.02 3/27/2018 Popper Updated Schematic and DMIC...
- Page 14 IA611 Xplained Pro Hardware User Guide Knowles Intelligent Audio 331 Fairchild Drive Mountain View, California 94043 Tel: +1 650.254.2800 Fax: +1 650.254.1440 www.knowles.com Copyright © 2018 Knowles Corporation Product specifications are subject to change without notice. All TRADEMARKS are recognized as the property of their respective owners.
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