前言:
之前以QCS405晶片推出2.1CH音源擴大機參考設計方案, 因有增減些功能而衍伸出第二版線路及PCB。 
應用場景圖: <img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/_______________.jpg" alt="應用場景圖" /> 
介面介紹: <img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/function_introduced.jpg" alt="介面介紹" />
按鍵功能: <img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/bottom_function.jpg" alt="按鍵功能" /> 
方案規格:
<ul>
<li>音源輸入
<ul>
<li>AUX X1</li>
<li>RCA X1</li>
<li>SPDIF-RCA X1</li>
<li>SPDIF-Optical X1</li>
<li>0 X1</li>
<li>eARC X1 (第二版)</li>
</ul>
</li>
<li>11 a/b/g/n/ac X1</li>
<li>Dual Channel 6~10W 輸出.</li>
<li>One Channel Subwoofer輸出</li>
<li>4組DMIC介面</li>
<li>1組 I2S介面 ,最多8條data Line</li>
<li>1組0</li>
<li>2組 UART</li>
<li>線路預留</li>
</ul>
方案方塊圖:
<img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/qcs405_function_block_v2.jpg" alt="方案方塊圖" /> 
PCB板差異:
<img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/qcs405_evk_variance_v1v2_top.jpg" alt="PCB板差異1" /> &nbsp;<img src="https://edit.wpgdadawant.com/uploads/news_file/blog/2021/5231/tinymce/qcs405_evk_variance_v1v2_bottom.jpg" alt="PCB板差異2" />
結語:
eARC 為主要新增功能 ,若有需要相關資料 ,請聯絡相關PM或Sales.

AIT_QCS405 demo Board加強版介紹

參考來源