TIDEP-0088 reference design

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'tablet' : 'desktop'; var tiVersion = "1.4.12" </script> <script type="text/javascript" language="javascript" src="//www.ti.com/assets/js/headerfooter/analytics.js"></script> </head> <body> <header id="tiResponsiveHeader" class="ti_p-responsiveHeader u-margin-bottom-0"> <script defer type="text/javascript" src="/assets/js/@ticom/header-content/1.latest/en/js/header-responsive.js"></script> <script defer type="text/javascript" src="/assets/js/@ticom/header-content/1.latest/en/js/footer.js"></script> <script type="text/javascript" src="/assets/js/headerfooter/personalization.js"></script> <script type="module" src="/assets/js/@ticom/ui-components/3.4.43/ui-components.esm.js"></script> <script type="module" src="/assets/js/@ticom/feature-components/2.2.71/feature-components.esm.js"></script> <script type="module" src="/assets/js/@ticom/folder-components/4.2.23/folder-components.esm.js"></script> <script type="module" 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href="/design-development/overview.html" >Design & development</a> </div> <div class="ti_p-breadcrumb-section" data-lid="breadcrumb_2-Reference designs"> <a id="ti-breadcrumb-section-2" data-navtitle="breadcrumb_Reference designs" href="/reference-designs/index.html" >Reference designs</a> </div> </div> </div> </div> <div class="ti_p-layout-space-small">  <div class="ti_p-row"> <div class="ti_p-col-9 ti_p-col-phone-12"> <h1 class="u-text-breakword u-font-weight-normal u-margin-bottom-1">TIDEP-0088</h1> <h2 class="u-margin-bottom-0">Audio Pre-Processing System Reference Design for Voice-Based Applications</h2> </div> <div class="ti_p-col-3 ti_p-col-phone-12 u-text-right u-text-left-only-on-phone"> <div class="u-padding-top-4 u-hide-only-on-desktop"></div> <ti-button class="u-fullWidth-only-on-phone"> <a href="#design-products" data-navtitle="Design files" onclick="event.preventDefault(); document.dispatchEvent(new CustomEvent('tiNavbarControl', { detail: { navbarId: '#design-products' } }));" >Design files</a> </ti-button> </div> </div> </div> </div> </section> <section class="ti_p-page-responsive mod-fullWidth"> <div class="ti_p-layout-space-small">  <ti-sticky-header> <div slot="top" class= "ti_p-page-responsive" > <div class="ti_p-row">  <div class="ti_p-col u-minWidth-0"> <div class="u-flex mod-align-center u-padding-vertical-2"> <h3 class="u-margin-right-6 u-margin-bottom-0 u-text-truncate">TIDEP-0088</h3> <ti-button appearance="compact" class="u-hide-only-on-phone" style="margin-left: auto;"> <a href="#design-products" data-navtitle="Design files" onclick="event.preventDefault(); document.dispatchEvent(new CustomEvent('tiNavbarControl', { detail: { navbarId: '#design-products' } }));" >Design files</a> </ti-button> </div> </div> </div> </div> <div slot="bottom"> <ti-navbar centered scroll-offset="56" page-width="1240px" top-label="Top"></ti-navbar> </div> </ti-sticky-header> </div> </section> <section class="ti_p-page-responsive"> <div class="ti_p-layout-space-large"> <div class="ti_p-row"> <div class="ti_p-col"> <span navbar-id="description"></span> <span navbar-id="overview" navbar-name="Overview" data-navtitle="Overview"></span> <h3 class="u-header-2 u-hide-only-on-phone" >Overview</h3> </div> </div> <div> <style> /* Addresses Cumalitive Layout Shift: Using placeholder spacing */ ti-tab-container:not(.hydrated) { padding-top: 412px; /* height of max height of overview tab group */ height: 0; transform: translateY(-412px); display: block; } ti-sticky-header:not(.hydrated) { padding-top: 80px; /* height of sticky header */ height: 0; transform: translateY(-80px); display: block; } </style> <div class="ti_p-row u-flex mod-wrapReverse-phone">  <div class="ti_p-col-7 ti_p-col-phone-12 u-paragraph-medium u-margin-bottom-0 u-overflow-x">  <div data-lid="folder_tool_overview"> <div> <ti-view-more expand-action-label="View all" locale="en-US" collapsed-height="390" > <div> <p>This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter.  The rapid increase in applications that are used in noise-prone environments for voice activated digital assitants creates demand for systems that extract clear voice from noisy environments.  The reference design uses a microphone array and a sophisticated signal processing to extract clear audio from noisy environments.</p> <h5 class="u-font-weight-heavy">Features</h5>  <div class="u-overflow-x" style="max-width: calc(100vw - 48px);"><ul> <li>Single digital signal processor (DSP) SoC for audio pre-processing</li> <li>Circular microphone board (CMB) with 360 degree coverage of audio source</li> <li>Audio preprocessing software</li> <li>Hardware and software with modularized components to build an audio preprocessing solution for clear voice triggering and recognition</li> </ul> </div> </div> </ti-view-more> </div> </div> </div> <div class="ti_p-col-5 ti_p-col-phone-12"> <div class="u-margin-top-2 u-padding-top-8 u-hide-only-on-phone"></div> <ti-media-gallery> <span slot="download-label">??image.gallery.download_en_US??</span> <span slot="video-transcript-link-text">View video with transcript</span> <span slot="dialog-title-video">Video</span> <ti-image slot="media" alt="TIDEP-0088 Audio Pre-Processing System Reference Design for Voice-Based Applications design image" src="/diagrams/tidep-0088_tidep-0088-image-board.JPG" src-lg="/diagrams/tidep-0088_tidep-0088-image-board.JPG" data-media-type="image" data-media-name="tidep-0088_tidep-0088-image-board.JPG" data-media-desc="TIDEP-0088 Audio Pre-Processing System Reference Design for Voice-Based Applications design image" data-media-thumbnail-url="/diagrams/tidep-0088_tidep-0088-image-board.JPG" data-media-image-url="/diagrams/tidep-0088_tidep-0088-image-board.JPG" ></ti-image> <ti-video-player slot="media" api-url="/bin/ti/folder/video?locale=en-us&type=toolname&id=14518" data-lid="media gallery" single-video-player lazy="false" data-media-type="video" locale="en-US" > <video-js id="ti-media-gallery-video-1" data-embed="default" controls="" class="vjs-fluid" style="height:100%; padding: 0" ></video-js> </ti-video-player> <ti-image slot="media" alt="TIDEP-0088 Audio Pre-Processing System Reference Design for Voice-Based Applications design image" src="/diagrams/tidep-0088_tidep-0088-image-blockdiagram-large.jpg" src-lg="/diagrams/tidep-0088_tidep-0088-image-blockdiagram-large.jpg" data-media-type="image" data-media-name="tidep-0088_tidep-0088-image-blockdiagram-large.jpg" data-media-desc="TIDEP-0088 Audio Pre-Processing System Reference Design for Voice-Based Applications design image" data-media-thumbnail-url="/diagrams/tidep-0088_tidep-0088-image-blockdiagram-large.jpg" data-media-image-url="/diagrams/tidep-0088_tidep-0088-image-blockdiagram-large.jpg" ></ti-image> </ti-media-gallery> <p class="u-margin-top-4">A fully assembled board has been developed for testing and performance validation only, and is not available for sale.</p> </div> </div> </div> </div> </section> <section class="ti_p-page-responsive"> <div class="ti_p-row"> <h3 navbar-id="design-products" navbar-name="Design files & products" data-navtitle="Design files & products" class="ti_p-col-12 u-header-2">Design files & products</h3> </div> <div class="ti_p-row ti_p-layout-space-small"> <div class="ti_p-col-12"> <h4 class="u-header-3">Design files</h4> <p>Download ready-to-use system files to speed your design process.</p> <div data-lid="folder_tool_design_files"> <div class="u-divide-y mod-no-top-line"> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tiducr7" data-navtitle="Design guide" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Design guide — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDUCR7A.PDF (4730 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Reference design overview and verified performance test data</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tidrqt3" data-navtitle="Schematic" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Schematic — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRQT3.PDF (334 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Detailed schematic diagram for design layout and components</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tidrle5" data-navtitle="Schematic" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Schematic — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRLE5A.PDF (1523 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Detailed schematic diagram for design layout and components</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tidrqt4" data-navtitle="Bill of materials (BOM)" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Bill of materials (BOM) — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRQT4.PDF (89 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Complete listing of design components, reference designators, and manufacturers/part numbers</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tidrle6" data-navtitle="Bill of materials (BOM)" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Bill of materials (BOM) — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRLE6A.PDF (119 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Complete listing of design components, reference designators, and manufacturers/part numbers</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/pdf/tidrqt5" data-navtitle="Assembly drawing" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Assembly drawing — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRQT5.PDF (196 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Detailed overview of design layout for component placement</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/zip/tidrle7" data-navtitle="Assembly drawing" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Assembly drawing — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRLE7A.ZIP (151 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Detailed overview of design layout for component placement</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/zip/tidrqt7" data-navtitle="CAD/CAE symbol" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>CAD/CAE symbol — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRQT7.ZIP (18998 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Files used for 3D models or 2D drawings of IC components</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/zip/tidrle8" data-navtitle="CAD/CAE symbol" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>CAD/CAE symbol — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRLE8A.ZIP (12389 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Files used for 3D models or 2D drawings of IC components</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/zip/tidcde5" data-navtitle="Gerber file" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>Gerber file — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDCDE5.ZIP (6085 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">Design file that contains information on physical board layer of design PCB</p></div> </div> </div> <div class="u-padding-vertical-4"> <div class="ti_p-row"> <div class="ti_p-col-3 ti_p-col-phone-12"> <a class="ti_p-iconText" href="/lit/zip/tidrqt6" data-navtitle="PCB layout" target="_blank" rel="noreferrer"> <ti-svg-icon class="ti_p-iconText-icon" icon-set="actions" size="s" appearance="secondary">download</ti-svg-icon> <span>PCB layout — TIDEP-0088</span> </a> </div> <div class="ti_p-col-2 ti_p-col-phone-12"> </div> <div class="ti_p-col-3 ti_p-col-phone-12"> <div class="u-padding-top-4 u-show-only-on-phone"></div> <span>TIDRQT6.ZIP (10228 K)</span> </div> <div class="ti_p-col-4 ti_p-col-phone-12"><p class="u-margin-bottom-0">PCB layer plot file used for generating PCB design layout</p></div> </div> </div> </div> </div> </div> </div> <div class="ti_p-row ti_p-layout-space-large"> <div class="ti_p-col-12"> <h4 class="u-header-3">Products</h4> <p>Includes TI products in the design and potential alternatives.</p> <div data-lid="folder_tool_products"> <div class="u-paragraph-medium u-margin-bottom-0 u-divide-y">  <div class="u-padding-vertical-4" > <div class="ti_p-row u-margin-horizontal-0"> <div class="ti_p-col-2 u-ie-flex-basis-auto u-hide-only-on-phone"> <div class="ti_p-asset-image mod-illustrative-icon"> <ti-image ratio="rectangle" target="_blank" rel="noreferrer noopener" href="/product/66AK2G12" data-lid="folder_tool_products_image|arm-based processors - 66ak2g12" src="/content/dam/ticom/images/products/package/a/aby0625a.png:singlesmall" ></ti-image> </div> </div> <div class="ti_p-col-10 ti_p-col-phone-12"> <div class="u-font-size-small u-text-uppercase u-margin-bottom-2">Arm-based processors</div> <h4 class="u-text-breakword u-margin-bottom-3"> <a target="_blank" rel="noreferrer noopener" class="u-font-weight-normal" href="/product/66AK2G12" data-navtitle="arm-based processors - 66ak2g12" >66AK2G12</a> — <span class="u-font-weight-light">High performance multicore DSP+Arm - 1x Arm A15 cores, 1x C66x DSP core</span> </h4> <span class="u-inline-flex"> <span class="u-margin-right-2">Data sheet:</span> <span class="u-text-nowrap u-inline-flex"> <a href="/lit/gpn/66ak2g12" target="_blank" data-navtitle="arm-based processors|data sheet pdf">PDF</a> <span class="u-inline-flex"> <span class="u-margin-left-2 u-margin-right-2">|</span> <a href="/document-viewer/66AK2G12/datasheet" target="_blank" data-navtitle="arm-based processors|data sheet html">HTML</a> </span> </span> </span> </div> </div> </div> <div class="u-padding-vertical-4" > <div class="ti_p-row u-margin-horizontal-0"> <div class="ti_p-col-2 u-ie-flex-basis-auto u-hide-only-on-phone"> <div class="ti_p-asset-image mod-illustrative-icon"> <ti-image ratio="rectangle" target="_blank" rel="noreferrer noopener" href="/product/PCM1864" data-lid="folder_tool_products_image|audio adcs - pcm1864" src="/content/dam/ticom/images/products/package/d/dbt0030a.png:singlesmall" ></ti-image> </div> </div> <div class="ti_p-col-10 ti_p-col-phone-12"> <div class="u-font-size-small u-text-uppercase u-margin-bottom-2">Audio ADCs</div> <h4 class="u-text-breakword u-margin-bottom-3"> <a target="_blank" rel="noreferrer noopener" class="u-font-weight-normal" href="/product/PCM1864" data-navtitle="audio adcs - pcm1864" >PCM1864</a> — <span class="u-font-weight-light">103dB 4-Channel Software-Controlled Audio ADC With Universal Front End</span> </h4> <span class="u-inline-flex"> <span class="u-margin-right-2">Data sheet:</span> <span class="u-text-nowrap u-inline-flex"> <a href="/lit/gpn/pcm1864" target="_blank" data-navtitle="audio adcs|data sheet pdf">PDF</a> <span class="u-inline-flex"> <span class="u-margin-left-2 u-margin-right-2">|</span> <a href="/document-viewer/PCM1864/datasheet" target="_blank" data-navtitle="audio adcs|data sheet html">HTML</a> </span> </span> </span> </div> </div> </div> </div> </div> </div> </div> </section> <section class="ti_p-page-responsive"> <div class="ti_p-row ti_p-layout-space-large"> <div class="ti_p-col-12"> <h3 navbar-id="tech-docs" navbar-name="Technical documentation" data-navtitle="Technical documentation" class="u-header-2">Technical documentation</h3> <div> <div class="u-margin-left-4 u-margin-bottom-2"> <div class="u-flex"> <ti-svg-icon appearance="tertiary" size="s">star</ti-svg-icon> <div class="u-margin-left-1"> = <em>Top documentation selected by TI</em></div> </div> </div> <ti-techdocs data-lid="folder_tool_technical_documents" doc-type-all-label="All" doc-type-all-value="All" search-placeholder="Filter title by keyword" metrics-name="folder_tool" > <div slot="error-message" style="height: 60px; border-bottom: 1px solid #e8e8e8" class="u-flex mod-justify-center mod-align-center" >No results found. Please clear your search and try again.</div> <span slot="show-all-label">View all 4</span> <table> <colgroup> <col /> <col /> <col /> <col /> <col /> </colgroup> <thead> <tr> <th prop-key="featured"></th> <th prop-key="type">Type</th> <th prop-key="title">Title</th> <th prop-key="pdf-html"></th> <th prop-key="date">Date</th> </tr> </thead> <tbody> <tr> <td>*</td> <td doc-type="Design guide">Design guide</td> <td> <a href="/lit/pdf/tiducr7" data-navtitle="Design guide|Featured|TIDUCR7A" target="_blank">Audio Pre-Proc Sys RD for Voice-Based Applications Using 66AK2Gx (Rev. A)</a> </td> <td > </td> <td utc-date="2018-06-12T00:00:00Z">Jun. 12, 2018</td> </tr> <tr> <td></td> <td doc-type="Technical article">Technical article</td> <td> <a href="/lit/pdf/sszta57" data-navtitle="Technical article|SSZTA57" target="_blank">A primer in voice interface technology</a> </td> <td > <a href="/lit/pdf/sszta57" target="_blank" data-navtitle="Technical article|SSZTA57|PDF">PDF</a> <span>|</span> <a href="/document-viewer/lit/html/sszta57" target="_blank" data-navtitle="Technical article|SSZTA57|HTML">HTML</a> </td> <td utc-date="2017-05-26T00:00:00Z">May 26, 2017</td> </tr> <tr> <td></td> <td doc-type="VID">VID</td> <td> <a href="https://training.ti.com/voice-preprocessing-demo-on-evmk2g" data-navtitle="VID|null">Demonstrating Voice Preprocessing</a> </td> <td > </td> <td utc-date="2017-05-18T00:00:00Z">May 18, 2017</td> </tr> <tr> <td></td> <td doc-type="White paper">White paper</td> <td> <a href="/lit/pdf/slyy116" data-navtitle="White paper|SLYY116" target="_blank">Voice as the user interface – a new era in speech processing white Paper</a> </td> <td > </td> <td utc-date="2017-05-09T00:00:00Z">May 09, 2017</td> </tr> </tbody> </table> </ti-techdocs> </div> </div> </div> </section> <section class="ti_p-page-responsive"> <div class="ti_p-row ti_p-layout-space-large"> <div class="ti_p-col-12"> <h3 class="u-header-2">Related design resources</h3> <div>  <div> <h4 class="u-header-3 u-margin-bottom-8">Hardware development</h4>  <div class="u-margin-bottom-8 u-paragraph-medium" data-lid="tools_rdr - Hardware development - Daughter card"> <h6 class="u-font-size-1 u-margin-bottom-2 u-font-weight-normal">DAUGHTER CARD</h6>  <ti-multicolumn-list row-dividers="true" compact="true" style="width:100%;"> <ti-multicolumn-list-row> <ti-multicolumn-list-cell class="u-padding-left-0"> <a href="/tool/AUDK2G">AUDK2G</a> <span>—</span> <span>66AK2Gx (K2G) audio daughter card</span> </ti-multicolumn-list-cell> </ti-multicolumn-list-row> </ti-multicolumn-list> </div> </div> <div> <h4 class="u-header-3 u-margin-bottom-8">Software development</h4>  <div class="u-margin-bottom-8 u-paragraph-medium" data-lid="tools_rdr - Software development - Software development kit (SDK)"> <h6 class="u-font-size-1 u-margin-bottom-2 u-font-weight-normal">SOFTWARE DEVELOPMENT KIT (SDK)</h6>  <ti-multicolumn-list row-dividers="true" compact="true" style="width:100%;"> <ti-multicolumn-list-row> <ti-multicolumn-list-cell class="u-padding-left-0"> <a href="/tool/PROCESSOR-SDK-K2G">PROCESSOR-SDK-K2G</a> <span>—</span> <span>Processor SDK for 66AK2Gx Processors - Linux and TI-RTOS Support</span> </ti-multicolumn-list-cell> </ti-multicolumn-list-row> </ti-multicolumn-list> </div> </div> <div> <h4 class="u-header-3 u-margin-bottom-8">Reference designs</h4>  <div class="u-margin-bottom-8 u-paragraph-medium" data-lid="tools_rdr - Reference designs - Reference design"> <h6 class="u-font-size-1 u-margin-bottom-2 u-font-weight-normal">REFERENCE DESIGN</h6>  <ti-multicolumn-list row-dividers="true" compact="true" style="width:100%;"> <ti-multicolumn-list-row> <ti-multicolumn-list-cell class="u-padding-left-0"> <a href="/tool/TIDA-01454">TIDA-01454</a> <span>—</span> <span>PCM1864-Based Circular Microphone Board (CMB) Reference Design</span> </ti-multicolumn-list-cell> </ti-multicolumn-list-row> </ti-multicolumn-list> </div> </div> </div> </div> </div> </section> <section> <div class="ti_p-page-responsive"> <div class="ti_p-row"> <h3 navbar-id="support-training" navbar-name="Support & training" data-navtitle="Support & training" class="ti_p-col-12 u-header-2">Support & training</h3> </div> </div> <article class="ti_p-page-responsive"> <div class="ti_p-row ti_p-layout-space-large"> <div class="ti_p-col-12"> <h4 class="u-header-3">TI E2E™ forums with technical support from TI engineers</h4> <div class="u-margin-bottom-0"> <ti-e2e-support-forums gpn="TIDEP-0088" api-url="/e2eservice/tool/TIDEP-0088?locale=en-US" locale="en-US" data-lid="folder_tool_e2e_support" lazy ></ti-e2e-support-forums> </div> <div class="u-margin-bottom-6 u-divide-y mod-no-top-line mod-dotted-line"> <div class="u-padding-bottom-6"> <style> @media (max-width: 766px) { .u-button-width-phone-only { width: 100%; } .u-margin-right-0-only-on-phone { margin-right: 0 !important; } } </style> <ti-button class="u-button-width-phone-only u-margin-right-4 u-margin-right-0-only-on-phone" appearance="secondary"> <a href="https://e2e.ti.com/search?category=forum&q=TIDEP-0088" data-navtitle="View all forum topics">View all forum topics</a> </ti-button> </div> </div> <p><i>Content is provided "as is" by TI and community contributors and does not constitute TI specifications. 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