https://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32Product Detail Documentsen-USTelligent Community 12https://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32Fri, 05 May 2023 15:54:47 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5c6f62d5-94a9-47c6-961b-192cfbe109ace14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32#commentsCurrent Revision posted to Documents by e14-publisher on 5/5/2023 3:54:47 PM<br /> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">STAudioHub USB interface board based on MP34DT01 and STM32</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-MKI138V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-47e8d" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('47e8d'));" data-farnell="" data-newark="53X2502" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The purpose of STEVAL-MKI138V1 is to provide a demonstration of decoding and streaming of digital MEMS microphone outputs. The STEVAL-MKI138V1 demonstration board hosts the MP34DT01 (top-port digital microphone), working as a sensor and the STM32F107RC microcontroller, which functions as an audio decoder.</p> <p>These microphones are analog-to-digital transducers. They are capable of sensing sound pressure and converting it to a digital signal using the PDM technique. The STM32 microcontroller decodes the PDM signals from the microphones and streams the audio via USB.</p> <p>The STEVAL-MKI138V1 is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable, which both powers the board and streams the audio collected from the microphones to the PC. It is also possible to use the STEVAL-MKI138V1 as an interface board for other microphone boards (STEVAL-MKI126Vx), in which case use of the APWorkbench software tool is recommended.</p> <p><strong>Applications</strong>: Mobile terminals, Laptop and notebook computers, Portable media players, VoIP, Speech recognition, A/V eLearning devices, Gaming and virtual reality input devices, Digital still and video cameras, Antitheft systems</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Powered and connected to PC through USB</li> <li>Sound card automatically recognized by the PC as an audio device.</li> <li>MEMS microphones provide a high frequency data stream (1 to 3.25 MHz) of 1 bit digital samples (PDM technique)</li> <li>Audio collected from the microphones is sent to the PC through USB</li> <li>LED status indicator</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Demo Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00061574.pdf" target="_blank">AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00067272.pdf" target="_blank">AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00073270.pdf" target="_blank">AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00039779.pdf" target="_blank">MP34DT01 MEMS audio sensor omnidirectional stereo digital microphone (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00220364.pdf" target="_blank">STM32F107RC Mainstream Connectivity line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">User Manual/Guide</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00079432.pdf" target="_blank">DB1918: STAudioHub USB interface board based on MP34DT01 and STM32 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-mki138v1_bom.pdf" target="_blank">STEVAL-MKI138V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Design Package</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/st_prod_software_internet/resource/technical/software/sw_development_suite/apworkbench.zip" target="_blank">APWorkbench Audio Processor Workbench software development suite (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-mki138v1_gerber.zip" target="_blank">STEVAL-MKI138V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-mki138v1_schematic.pdf" target="_blank">STEVAL-MKI138V1 schematics (pdf)</a> </div> </div> </div> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 1960, "type": "devtool", "part_number": "STEVAL-MKI138V1" };</script> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: audio_video, stm, stm32, MP34DT01, analog_demo_boards</div> https://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32/revision/3Thu, 16 Dec 2021 23:27:25 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5c6f62d5-94a9-47c6-961b-192cfbe109ace14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32#commentsRevision 3 posted to Documents by e14-publisher on 12/16/2021 11:27:25 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 1960, "type": "devtool", "part_number": "STEVAL-MKI138V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">STAudioHub USB interface board based on MP34DT01 and STM32</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-MKI138V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-9deec" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9deec'));" data-farnell="" data-newark="53X2502" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The purpose of STEVAL-MKI138V1 is to provide a demonstration of decoding and streaming of digital MEMS microphone outputs. The STEVAL-MKI138V1 demonstration board hosts the MP34DT01 (top-port digital microphone), working as a sensor and the STM32F107RC microcontroller, which functions as an audio decoder.</p> <p>These microphones are analog-to-digital transducers. They are capable of sensing sound pressure and converting it to a digital signal using the PDM technique. The STM32 microcontroller decodes the PDM signals from the microphones and streams the audio via USB.</p> <p>The STEVAL-MKI138V1 is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable, which both powers the board and streams the audio collected from the microphones to the PC. It is also possible to use the STEVAL-MKI138V1 as an interface board for other microphone boards (STEVAL-MKI126Vx), in which case use of the APWorkbench software tool is recommended.</p> <p><strong>Applications</strong>: Mobile terminals, Laptop and notebook computers, Portable media players, VoIP, Speech recognition, A/V eLearning devices, Gaming and virtual reality input devices, Digital still and video cameras, Antitheft systems</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Powered and connected to PC through USB</li> <li>Sound card automatically recognized by the PC as an audio device.</li> <li>MEMS microphones provide a high frequency data stream (1 to 3.25 MHz) of 1 bit digital samples (PDM technique)</li> <li>Audio collected from the microphones is sent to the PC through USB</li> <li>LED status indicator</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Demo Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00061574.pdf" target="_blank">AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00067272.pdf" target="_blank">AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00073270.pdf" target="_blank">AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00039779.pdf" target="_blank">MP34DT01 MEMS audio sensor omnidirectional stereo digital microphone (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00220364.pdf" target="_blank">STM32F107RC Mainstream Connectivity line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">User Manual/Guide</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00079432.pdf" target="_blank">DB1918: STAudioHub USB interface board based on MP34DT01 and STM32 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-mki138v1_bom.pdf" target="_blank">STEVAL-MKI138V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Design Package</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/st_prod_software_internet/resource/technical/software/sw_development_suite/apworkbench.zip" target="_blank">APWorkbench Audio Processor Workbench software development suite (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-mki138v1_gerber.zip" target="_blank">STEVAL-MKI138V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-mki138v1_schematic.pdf" target="_blank">STEVAL-MKI138V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: audio_video, stm, stm32, MP34DT01, analog_demo_boards</div> https://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32/revision/2Thu, 16 Dec 2021 03:14:21 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5c6f62d5-94a9-47c6-961b-192cfbe109ace14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32#commentsRevision 2 posted to Documents by e14-publisher on 12/16/2021 3:14:21 AM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 1960, "type": "devtool", "part_number": "STEVAL-MKI138V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">STAudioHub USB interface board based on MP34DT01 and STM32</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-MKI138V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-210c7" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('210c7'));" data-farnell="" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The purpose of STEVAL-MKI138V1 is to provide a demonstration of decoding and streaming of digital MEMS microphone outputs. The STEVAL-MKI138V1 demonstration board hosts the MP34DT01 (top-port digital microphone), working as a sensor and the STM32F107RC microcontroller, which functions as an audio decoder.</p> <p>These microphones are analog-to-digital transducers. They are capable of sensing sound pressure and converting it to a digital signal using the PDM technique. The STM32 microcontroller decodes the PDM signals from the microphones and streams the audio via USB.</p> <p>The STEVAL-MKI138V1 is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable, which both powers the board and streams the audio collected from the microphones to the PC. It is also possible to use the STEVAL-MKI138V1 as an interface board for other microphone boards (STEVAL-MKI126Vx), in which case use of the APWorkbench software tool is recommended.</p> <p><strong>Applications</strong>: Mobile terminals, Laptop and notebook computers, Portable media players, VoIP, Speech recognition, A/V eLearning devices, Gaming and virtual reality input devices, Digital still and video cameras, Antitheft systems</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Powered and connected to PC through USB</li> <li>Sound card automatically recognized by the PC as an audio device.</li> <li>MEMS microphones provide a high frequency data stream (1 to 3.25 MHz) of 1 bit digital samples (PDM technique)</li> <li>Audio collected from the microphones is sent to the PC through USB</li> <li>LED status indicator</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Demo Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00061574.pdf" target="_blank">AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00067272.pdf" target="_blank">AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00073270.pdf" target="_blank">AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00039779.pdf" target="_blank">MP34DT01 MEMS audio sensor omnidirectional stereo digital microphone (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00220364.pdf" target="_blank">STM32F107RC Mainstream Connectivity line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">User Manual/Guide</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00079432.pdf" target="_blank">DB1918: STAudioHub USB interface board based on MP34DT01 and STM32 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-mki138v1_bom.pdf" target="_blank">STEVAL-MKI138V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Design Package</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/st_prod_software_internet/resource/technical/software/sw_development_suite/apworkbench.zip" target="_blank">APWorkbench Audio Processor Workbench software development suite (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-mki138v1_gerber.zip" target="_blank">STEVAL-MKI138V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-mki138v1_schematic.pdf" target="_blank">STEVAL-MKI138V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: audio_video, stm, stm32, MP34DT01, analog_demo_boards</div> https://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32/revision/1Mon, 18 Oct 2021 20:19:33 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5c6f62d5-94a9-47c6-961b-192cfbe109ace14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/21797/staudiohub-usb-interface-board-based-on-mp34dt01-and-stm32#commentsRevision 1 posted to Documents by e14-publisher on 10/18/2021 8:19:33 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 1960, "type": "devtool", "part_number": "STEVAL-MKI138V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">STAudioHub USB interface board based on MP34DT01 and STM32</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x331_1579630226.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/staudiohub_usb_interface_board_based_on_mp34dt01_and_stm32_500x358_1579630227.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="STAudioHub USB interface board based on MP34DT01 and STM32" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-MKI138V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-38cf7" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('38cf7'));" data-farnell="" data-newark="53X2502" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The purpose of STEVAL-MKI138V1 is to provide a demonstration of decoding and streaming of digital MEMS microphone outputs. The STEVAL-MKI138V1 demonstration board hosts the MP34DT01 (top-port digital microphone), working as a sensor and the STM32F107RC microcontroller, which functions as an audio decoder.</p> <p>These microphones are analog-to-digital transducers. They are capable of sensing sound pressure and converting it to a digital signal using the PDM technique. The STM32 microcontroller decodes the PDM signals from the microphones and streams the audio via USB.</p> <p>The STEVAL-MKI138V1 is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable, which both powers the board and streams the audio collected from the microphones to the PC. It is also possible to use the STEVAL-MKI138V1 as an interface board for other microphone boards (STEVAL-MKI126Vx), in which case use of the APWorkbench software tool is recommended.</p> <p><strong>Applications</strong>: Mobile terminals, Laptop and notebook computers, Portable media players, VoIP, Speech recognition, A/V eLearning devices, Gaming and virtual reality input devices, Digital still and video cameras, Antitheft systems</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Powered and connected to PC through USB</li> <li>Sound card automatically recognized by the PC as an audio device.</li> <li>MEMS microphones provide a high frequency data stream (1 to 3.25 MHz) of 1 bit digital samples (PDM technique)</li> <li>Audio collected from the microphones is sent to the PC through USB</li> <li>LED status indicator</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Demo Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00061574.pdf" target="_blank">AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00067272.pdf" target="_blank">AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00073270.pdf" target="_blank">AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00039779.pdf" target="_blank">MP34DT01 MEMS audio sensor omnidirectional stereo digital microphone (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00220364.pdf" target="_blank">STM32F107RC Mainstream Connectivity line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">User Manual/Guide</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00079432.pdf" target="_blank">DB1918: STAudioHub USB interface board based on MP34DT01 and STM32 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-mki138v1_bom.pdf" target="_blank">STEVAL-MKI138V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Design Package</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/st_prod_software_internet/resource/technical/software/sw_development_suite/apworkbench.zip" target="_blank">APWorkbench Audio Processor Workbench software development suite (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-mki138v1_gerber.zip" target="_blank">STEVAL-MKI138V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-mki138v1_schematic.pdf" target="_blank">STEVAL-MKI138V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: audio_video, stm, stm32, MP34DT01, analog_demo_boards</div>