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< p class = "- topic/p p" data-ofbid = "d84607e28__20250519091513" > Audio 是一个内置在 SOC 内部的音频模块。该模块内部集成了 ADC、DMIC 音频输入和 PWM 音频
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输出，经过数字信号的处理，实现音频信号的录入以及播放等功能。< / p >
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< div class = "- topic/p p" data-ofbid = "d84607e31__20250519091513" >
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< th class = "- topic/entry entry colsep-1 rowsep-1" id = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e49__20250519091513" > 术语< / p > < / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e53__20250519091513" > 定义< / p > < / th >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e63__20250519091513" > PCM< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e67__20250519091513" > 脉冲编码调制< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e74__20250519091513" > PDM< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e78__20250519091513" > 脉冲密度调制< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e85__20250519091513" > SDM< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e89__20250519091513" > Sigma Delta Modulation< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e96__20250519091513" > DF< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e100__20250519091513" > 抽值滤波器< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e107__20250519091513" > IF< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e111__20250519091513" > 插值滤波器< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e119__20250519091513" > HDF< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e123__20250519091513" > 高通滤波器< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e130__20250519091513" > DVC< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e134__20250519091513" > 数字音量控制器< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "id__table_lhz_5v3_ddc__entry__1" > < p class = "- topic/p p" data-ofbid = "d84607e141__20250519091513" > DMICI/F< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "id__table_lhz_5v3_ddc__entry__2" > < p class = "- topic/p p" data-ofbid = "d84607e145__20250519091513" > 数字 MIC 接口< / p > < / td >
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< / tr >
< / tbody > < / table > < / div >
< / div >
< section class = "- topic/section section" id = "id__id3" data-ofbid = "id__id3" > < h2 class = "- topic/title title sectiontitle" > 特性说明< / h2 >
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< ul class = "- topic/ul ul simple" id = "id__ul_mhz_5v3_ddc" data-ofbid = "id__ul_mhz_5v3_ddc" >
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< li class = "- topic/li li" data-ofbid = "d84607e162__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e164__20250519091513" > 支持 1 路模拟音频输入< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e168__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e170__20250519091513" > 支持数字 DMIC 立体声输入< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e174__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e176__20250519091513" > 支持 2 路单端输出(立体声)，或差分输出(单声道)< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e180__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e182__20250519091513" > 无 DAC 设计，输出采用 PWM 输出< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e186__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e188__20250519091513" > 输入和输出通路均支持数字音量控制< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e193__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e195__20250519091513" > 支持混音< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d84607e199__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d84607e201__20250519091513" > 只支持 16bit 音频数据< / p >
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< / li >
< / ul >
< / section >
< / div >
< / article > < / main > < / div >
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< div class = " wh_child_links d-print-none " > < nav aria-label = "Child Links" role = "navigation" class = "- topic/related-links related-links" > < ul class = "ullinks" > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/audio/audio_configure.html" > Audio 配置< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/audio/audio_test_guide.html" > 测试指南< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/audio/audio_design_guide.html" > 设计说明< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/audio/audio_faq.html" > 常见问题< / a > < / strong > < / li > < / ul > < / nav > < / div >
< / div >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
< / html >
