<h1>1.项目介绍</h1> <p>将输入的音频信号进行放大，应用于音响等设备上，还可以对输入信号的各频段进行调整，达到听感满意的效果<br>均衡器见：：<a title="LA3600五段音频均衡器" href="/13026918161/la3600_5" target="_blank">LA3600五段音频均衡器</a><br>除了放大信号，还可以让音乐信号“可视化”</p> <p>使用了集成IC，整个电路非常小巧，板子大小10*6cm，可以放进口袋。</p> <p>排针供debug使用，排针针脚定义如下：</p> <table style="width: 16.3655%;"> <tr> <th style="width: 18.8627%;">针脚</th> <th style="width: 26.3267%;">网络端口</th> <th style="width: 72.5519%;">释义</th> </tr> <tr> <td style="width: 18.8627%;">1</td> <td style="width: 26.3267%;">L IN</td> <td style="width: 72.5519%;">左声道输入</td> </tr> <tr> <td style="width: 18.8627%;">2</td> <td style="width: 26.3267%;">A GND</td> <td style="width: 72.5519%;">音频地</td> </tr> <tr> <td style="width: 18.8627%;">3</td> <td style="width: 26.3267%;">R IN</td> <td style="width: 72.5519%;">右声道输入</td> </tr> <tr> <td style="width: 18.8627%;">4</td> <td style="width: 26.3267%;">A GND</td> <td style="width: 72.5519%;">音频地</td> </tr> <tr> <td style="width: 18.8627%;">5</td> <td style="width: 26.3267%;">VCC</td> <td style="width: 72.5519%;">12V电源输入</td> </tr> <tr> <td style="width: 18.8627%;">6</td> <td style="width: 26.3267%;">GND</td> <td style="width: 72.5519%;">公共地</td> </tr> <tr> <td style="width: 18.8627%;">7</td> <td style="width: 26.3267%;">L OUT</td> <td style="width: 72.5519%;">左声道输出</td> </tr> <tr> <td style="width: 18.8627%;">8</td> <td style="width: 26.3267%;">A GND</td> <td style="width: 72.5519%;">音频地</td> </tr> <tr> <td style="width: 18.8627%;">9</td> <td style="width: 26.3267%;">R OUT</td> <td style="width: 72.5519%;">右声道输出</td> </tr> <tr> <td style="width: 18.8627%;">10</td> <td style="width: 26.3267%;">A GND</td> <td style="width: 72.5519%;">音频地</td> </tr> </table> <p>输入12V电源，可推动10W的扬声器</p> <p>从debug针脚或者电源插座插入9-18V电源，插入音频接口，调节输入设备的音量大小至合适，连接扬声器<br>调节端口旁边的可调电阻即可控制LM3915的灵敏度</p> <p>这款IC不持音量调节，所以直接在输入端串联电位器即可解决</p> <p><img src="https://image.lceda.cn/pullimage/XkYX93G7NkO0OaFCbzvs7KjYgjKjeTZcxWsA66Go.png" alt=""><br>非反向输入端与信号串联10uF滤波电容防止噪声</p> <p><img src="https://image.lceda.cn/pullimage/CjSqHbBRlQTh2QZGxrYxERKVWkVCFrv3MsvEH8MX.png" alt=""><br>电源端的电容可以实现开关机延迟，防止冲击噪声</p> <p><img src="https://image.lceda.cn/pullimage/e3E4VqPFs5vk5VEcQbsRFrnATA0MET8Qd1Pa2V7r.png" alt=""></p> <p>本电路接通后绿色led会亮，有信号时将会彩色闪烁</p> <p><img src="https://image.lceda.cn/pullimage/3R28I8Lh4leBIMuqqRIGoDe2kF0WiMiPtD8NLALP.png" alt=""></p> <p> </p> <p> </p> <h2>均衡器介绍</h2> <p> </p> <p>通过Base和NF到总NF端的电容即可更改频段，更改电位器即可更改电平</p> <p> </p> <p>本电路提供的电容和频率如下</p> <table width="528"> <tr> <td width="123" height="46"> <p><strong>C1(</strong><strong>nF</strong><strong>)</strong></p> </td> <td width="135"> <p><strong>C2</strong><strong>（</strong><strong>nF</strong><strong>）</strong></p> </td> <td colspan="2" width="270"> <p><strong>f</strong></p> </td> </tr> <tr> <td width="123" height="53"> <p>220.0000</p> </td> <td width="135"> <p>100.0000</p> </td> <td width="215"> <p>118.7857</p> </td> <td width="56"> <p>Hz</p> </td> </tr> <tr> <td width="123" height="53"> <p>47.0000</p> </td> <td width="135"> <p>47.0000</p> </td> <td width="215"> <p>374.8673</p> </td> <td width="56"> <p>Hz</p> </td> </tr> <tr> <td width="123" height="53"> <p>10.0000</p> </td> <td width="135"> <p>33.0000</p> </td> <td width="215"> <p>969.8810</p> </td> <td width="56"> <p>Hz</p> </td> </tr> <tr> <td width="123" height="53"> <p>0.4700</p> </td> <td width="135"> <p>22.0000</p> </td> <td width="215"> <p>5479.1747</p> </td> <td width="56"> <p>Hz</p> </td> </tr> <tr> <td width="123" height="53"> <p>0.2200</p> </td> <td width="135"> <p>10.0000</p> </td> <td width="215"> <p>11878.5677</p> </td> <td width="56"> <p>Hz</p> </td> </tr> </table> <p> </p> <p>输入方法：将3.5mm线插入输入端，拨码开关选择通道（左右声道），输出通道也同样输出到3.5mm线，也需要指定通道</p> <p>只支持单通道输入或者双通道混合为单通道输入，如果想要双通道可以使用debug针脚，定义如下</p> <p>排针排母自选，1*10p</p> <table style="width: 40.3011%; height: 242px;"> <tr style="height: 22px;"> <th style="width: 18.8627%; height: 22px;">针脚</th> <th style="width: 26.3267%; height: 22px;">网络端口</th> <th style="width: 218.795%; height: 22px;">释义</th> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">1</td> <td style="width: 26.3267%; height: 22px;">EQ OUT</td> <td style="width: 218.795%; height: 22px;">处理后音频输出</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">2</td> <td style="width: 26.3267%; height: 22px;">GND</td> <td style="width: 218.795%; height: 22px;">公共地</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">3</td> <td style="width: 26.3267%; height: 22px;">无</td> <td style="width: 218.795%; height: 22px;">悬空</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">4</td> <td style="width: 26.3267%; height: 22px;">GND</td> <td style="width: 218.795%; height: 22px;">公共地</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">5</td> <td style="width: 26.3267%; height: 22px;">LA Input</td> <td style="width: 218.795%; height: 22px;">左通道输入</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">6</td> <td style="width: 26.3267%; height: 22px;">RA Input</td> <td style="width: 218.795%; height: 22px;">右通道输入</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">7</td> <td style="width: 26.3267%; height: 22px;">GND</td> <td style="width: 218.795%; height: 22px;">公共地</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">8</td> <td style="width: 26.3267%; height: 22px;">VCC</td> <td style="width: 218.795%; height: 22px;">电源输入</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">9</td> <td style="width: 26.3267%; height: 22px;">空</td> <td style="width: 218.795%; height: 22px;">悬空</td> </tr> <tr style="height: 22px;"> <td style="width: 18.8627%; height: 22px;">10</td> <td style="width: 26.3267%; height: 22px;">空</td> <td style="width: 218.795%; height: 22px;">悬空</td> </tr> </table> <p>从debug针脚或者电源插座插入9-18V电源，插入音频接口，调节输入输出通道接入功放</p> <h1> </h1> <p> </p> <p> </p> <h1>2、项目属性</h1> <p>该项目为原创项目，首次公开，仅在立创开源平台进行公开<br>根据GPL3.0协议禁止作为商品出售，仅供学习，教育等用途</p> <p>这是一套简易功放和前级，音质和保真度媲美不上高端功放，但可以应用于运算放大</p> <h1>3、开源协议</h1> <p>该项目遵守GPL3.0协议，不可商用，仅作为学习教育使用，允许二次创作，但二次创作后也要相同协议开源</p> <h1>4、硬件部分</h1> <h2>均衡IC</h2> <p>弥补音响缺陷，加了LA3600五段均衡器芯片，采用DIP-16封装<br>它的中心频率和灵敏度可编程<br>宽电压输入，可承受5-15伏电压无错误输出<br>高稳定容性负载</p> <p><img src="//image.lceda.cn/pullimage/urNybhlAPmRIVm2ekSEqPea4l383AdCCvjwySmtm.png" alt="urNybhlAPmRIVm2ekSEqPea4l383AdCCvjwySmtm.png"></p> <p> </p> <p>这是它的针脚定义<img src="//image.lceda.cn/pullimage/V8x4MuITNPX75CIs4ZKFd75DO0ER3hkThv8EWJjJ.png" alt="V8x4MuITNPX75CIs4ZKFd75DO0ER3hkThv8EWJjJ.png"></p> <table width="398"> <tr> <td width="106" height="46"> <p><strong>针脚</strong></p> </td> <td width="107"> <p><strong>定义</strong></p> </td> <td width="186"> <p><strong>释义</strong></p> </td> </tr> <tr> <td width="106" height="38"> <p>1/3/5/7/9</p> </td> <td width="107"> <p>Base1-5</p> </td> <td width="186"> <p>基频设置</p> </td> </tr> <tr> <td width="106" height="38"> <p>2/4/6/8/10</p> </td> <td width="107"> <p>NF1-5</p> </td> <td width="186"> <p>频率参考端</p> </td> </tr> <tr> <td width="106" height="38"> <p>16</p> </td> <td width="107"> <p>GND</p> </td> <td width="186"> <p>公共地</p> </td> </tr> <tr> <td width="106" height="38"> <p>15</p> </td> <td width="107"> <p>DC</p> </td> <td width="186"> <p>解耦电容</p> </td> </tr> <tr> <td width="106" height="38"> <p>14</p> </td> <td width="107"> <p>VCC</p> </td> <td width="186"> <p>电源</p> </td> </tr> <tr> <td width="106" height="38"> <p>13</p> </td> <td width="107"> <p>OUT</p> </td> <td width="186"> <p>输出端</p> </td> </tr> <tr> <td width="106" height="38"> <p>12</p> </td> <td width="107"> <p>NF</p> </td> <td width="186"> <p>总参考端</p> </td> </tr> <tr> <td width="106" height="38"> <p>11</p> </td> <td width="107"> <p>IN</p> </td> <td width="186"> <p>输入端</p> </td> </tr> </table> <p> </p> <p>Base断串联一颗电容到nf端<br>再串联一颗电容到电位器到总参考端<br>即可实现中心频率调节<img src="//image.lceda.cn/pullimage/FAUMEvzJcKGknXSF6IjVoyp8KxcpRcFn1GKs1QRa.png" alt="FAUMEvzJcKGknXSF6IjVoyp8KxcpRcFn1GKs1QRa.png"></p> <p> </p> <p>如果想实现更多段的调节，把上一级LA3600输出端接入下一级输入端，调节C1,C2调节不同的中心频率<img src="//image.lceda.cn/pullimage/XfHTcFA8KzwR9QUnZhK4K3hC73TYm7DaXRHxPD92.png" alt="XfHTcFA8KzwR9QUnZhK4K3hC73TYm7DaXRHxPD92.png"></p> <p> </p> <p>中心频率计算公式：</p> <p><img src="//image.lceda.cn/pullimage/uLMVyqaCWuB5SAjcjT2moWIi20KC4dVmhfBcGWjN.png" alt="uLMVyqaCWuB5SAjcjT2moWIi20KC4dVmhfBcGWjN.png"></p> <p> </p> <p>该部分工程：<a href="/13026918161/la3600_5" target="_blank">#第六届立创电赛#LA3600 5段前级均衡器 - 立创EDA开源硬件平台 (oshwhub.com)</a></p> <h2>功放IC</h2> <p>TDA2003，提供了10W的功率放大，接口定义清晰，比较适合与应用在一般桌面音响，成本低，外围电路少</p> <h2>电平显示IC</h2> <p>LM3915，提供10点对数电平指示，具有3dB每灯，最大+30dB范围指示，可用电阻调节输出电流(1,30)mA，宽电压输入范围，通过修改MODE针脚电平修改显示模式（点状，条状）</p> <h1>5、软件部分</h1> <p>该项目无外围软件</p> <h1>6、BOM清单</h1> <p><strong>按照BOM清单</strong></p> <table width="1235"> <tr> <td width="72" height="19">ID</td> <td width="227">Name</td> <td width="72">Designator</td> <td width="72">Footprint</td> <td width="72">Quantity</td> <td width="72">Manufacturer Part</td> <td width="72">Manufacturer</td> <td width="72">Supplier</td> <td width="72">Supplier Part</td> <td width="72">Price</td> <td width="72">Pins</td> <td width="72">JLCPCB Part Class</td> <td width="72">Contributor</td> <td width="72">Description</td> <td width="72">link</td> </tr> <tr> <td align="right" height="19">1</td> <td>220nF</td> <td>C1</td> <td>C1210</td> <td align="right">1</td> <td>C1210X224K451T</td> <td>Holy Stone Enterprise</td> <td>LCSC</td> <td>C340313</td> <td align="right">1.0293</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/364452.html</td> </tr> <tr> <td align="right" height="19">2</td> <td>47nF</td> <td>C2</td> <td>C1206</td> <td align="right">1</td> <td>CC1206KKX7RABB473</td> <td>YAGEO</td> <td>LCSC</td> <td>C327004</td> <td align="right">0.2205</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">3</td> <td>10nF</td> <td>C3</td> <td>C1206</td> <td align="right">1</td> <td>C1206C103K5RAC7800</td> <td>KEMET</td> <td>LCSC</td> <td>C141181</td> <td align="right">0.1385</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">4</td> <td>470pF</td> <td>C4</td> <td>C1206</td> <td align="right">1</td> <td>CC1206KRX7RYBB471</td> <td>YAGEO</td> <td>LCSC</td> <td>C107212</td> <td align="right">0.1117</td> <td align="right">2</td> <td>Extended Part</td> <td>layout</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">5</td> <td>10nF</td> <td>C5</td> <td>C1206</td> <td align="right">1</td> <td>1206B103K102NT</td> <td>FH</td> <td>LCSC</td> <td>C9194</td> <td align="right">0.1076</td> <td align="right">2</td> <td>Extended Part</td> <td>layout</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">6</td> <td>100nF</td> <td>C6</td> <td>C1206</td> <td align="right">1</td> <td>1206B104K101</td> <td>WTC</td> <td>LCSC</td> <td>C77502</td> <td align="right">0.1559</td> <td align="right">2</td> <td> </td> <td>layout</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">7</td> <td>47nF</td> <td>C7</td> <td>C1206</td> <td align="right">1</td> <td>CC1206KRX7R9BB473</td> <td>YAGEO</td> <td>LCSC</td> <td>C107209</td> <td align="right">0.2785</td> <td align="right">2</td> <td>Extended Part</td> <td>layout</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">8</td> <td>33nF</td> <td>C8</td> <td>C1206</td> <td align="right">1</td> <td>CC1206JRX7R0BB333</td> <td>YAGEO</td> <td>LCSC</td> <td>C527315</td> <td align="right">0.3092</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">9</td> <td>22nF</td> <td>C9</td> <td>C1206</td> <td align="right">1</td> <td>1206B223K500CT</td> <td>Huaxin S&T</td> <td>LCSC</td> <td>C296114</td> <td align="right">0.1387</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">10</td> <td>220pF</td> <td>C10</td> <td>C1206</td> <td align="right">1</td> <td>1206N221J101CT</td> <td>Walsin Tech Corp</td> <td>LCSC</td> <td>C396803</td> <td align="right">0.1744</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/89171.html</td> </tr> <tr> <td align="right" height="19">11</td> <td>12Vin</td> <td>DC1</td> <td>DC-IN-TH_DC-470-2.1GP</td> <td align="right">1</td> <td>DC-470-2.1GP</td> <td>GANGYUAN</td> <td>LCSC</td> <td>C194407</td> <td align="right">0.4</td> <td align="right">3</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td>https://so.szlcsc.com/global.html?c=&k=C194407</td> </tr> <tr> <td align="right" height="19">12</td> <td>47uF</td> <td>C17</td> <td>CAP-TH_BD6.3-P2.50-D1.0-FD</td> <td align="right">1</td> <td>47uF 50V 6.3*11</td> <td>ValuePro</td> <td>LCSC</td> <td>C45101</td> <td align="right">0.1078</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">官方封装库</td> <td>https://item.szlcsc.com/44807.html</td> </tr> <tr> <td align="right" height="19">13</td> <td>22uF</td> <td>C18</td> <td>CAP-TH_BD5.0-P2.00-D0.8-FD</td> <td align="right">1</td> <td>22uF 50V 5*11</td> <td>ValuePro</td> <td>LCSC</td> <td>C43346</td> <td align="right">0.0736</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">官方封装库</td> <td>https://item.szlcsc.com/44805.html</td> </tr> <tr> <td align="right" height="19">14</td> <td>3.3uF</td> <td>C19,C21</td> <td>CAP-TH_BD6.3-P2.50-D1.0-FD</td> <td align="right">2</td> <td>47uF 50V 6.3*11</td> <td>ValuePro</td> <td>LCSC</td> <td>C45101</td> <td align="right">0.1078</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">官方封装库</td> <td>https://item.szlcsc.com/44807.html</td> </tr> <tr> <td align="right" height="19">15</td> <td align="right">1000</td> <td>C20</td> <td>CAP-TH_L8.0-W4.0-P5.00-D0.7</td> <td align="right">1</td> <td>R08B1B102KN0B0S0N0</td> <td>Songtian Elec</td> <td>LCSC</td> <td>C249166</td> <td align="right">0.1964</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td>https://item.szlcsc.com/265363.html</td> </tr> <tr> <td align="right" height="19">16</td> <td>Input</td> <td>CN2</td> <td>AUDIO-TH_PJ-3136-B</td> <td align="right">1</td> <td>PJ-3136-B</td> <td>XKB Enterprise</td> <td>LCSC</td> <td>C381131</td> <td align="right">0.5242</td> <td align="right">6</td> <td>Extended Part</td> <td colspan="2">立创EDA官方封装库</td> <td> </td> </tr> <tr> <td align="right" height="19">17</td> <td>排针排母1*10P</td> <td>H2</td> <td>排针排母10P</td> <td align="right">1</td> <td>-</td> <td>Shenzhen Cankemeng</td> <td>LCSC</td> <td>C35445</td> <td align="right">0.8744</td> <td align="right">10</td> <td> </td> <td colspan="2">PQG2030PQG</td> <td> </td> </tr> <tr> <td align="right" height="19">18</td> <td>110Hz</td> <td>R20</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">1</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C124974</td> <td align="right">7.64</td> <td align="right">5</td> <td> </td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/231612.html</td> </tr> <tr> <td align="right" height="19">19</td> <td>375Hz</td> <td>R21</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">1</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C124974</td> <td align="right">7.64</td> <td align="right">5</td> <td> </td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/231612.html</td> </tr> <tr> <td align="right" height="19">20</td> <td>969Hz</td> <td>R22</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">1</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C124974</td> <td align="right">7.64</td> <td align="right">5</td> <td> </td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/231612.html</td> </tr> <tr> <td align="right" height="19">21</td> <td>5480Hz</td> <td>R23</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">1</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C124974</td> <td align="right">7.64</td> <td align="right">5</td> <td> </td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/231612.html</td> </tr> <tr> <td align="right" height="19">22</td> <td>11878Hz</td> <td>R24</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">1</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C124974</td> <td align="right">7.64</td> <td align="right">5</td> <td> </td> <td colspan="2">立创EDA官方封装库</td> <td><a href="https://item.szlcsc.com/231612.html" target="_blank">https://item.szlcsc.com/231612.html</a></td> </tr> <tr> <td align="right" height="19">23</td> <td align="right">180</td> <td>R25</td> <td>RES-TH_BD2.5-L6.5-P10.50-D0.6</td> <td align="right">1</td> <td>MFR0W4F1800A50</td> <td>UniOhm</td> <td>LCSC</td> <td>C58665</td> <td align="right">0.0559</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/204066.html</td> </tr> <tr> <td align="right" height="19">24</td> <td>10K</td> <td>R26</td> <td>RES-TH_BD2.5-L6.5-P10.50-D0.6</td> <td align="right">1</td> <td>MFR0W4F1002A50</td> <td>UniOhm</td> <td>LCSC</td> <td>C57436</td> <td align="right">0.0538</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/204066.html</td> </tr> <tr> <td align="right" height="19">25</td> <td>4.7K</td> <td>R27</td> <td>RES-TH_BD2.5-L6.5-P10.50-D0.6</td> <td align="right">1</td> <td>MFR0W4F1002A50</td> <td>UniOhm</td> <td>LCSC</td> <td>C57436</td> <td align="right">0.0538</td> <td align="right">2</td> <td>Extended Part</td> <td colspan="2">立创EDA官方封装库</td> <td>https://item.szlcsc.com/204066.html</td> </tr> <tr> <td align="right" height="19">26</td> <td>LA3600</td> <td>U5</td> <td>DIP16</td> <td align="right">1</td> <td>LA3600</td> <td> </td> <td> </td> <td> </td> <td> </td> <td align="right">16</td> <td> </td> <td>Varadha_Eda</td> <td colspan="2">5Band Graphic Eq</td> </tr> <tr> <td align="right" height="19">27</td> <td>输入通道</td> <td>SW1</td> <td>KEY-TH_4P-L6.0-W6.2-P2.54-LS7.62-BL</td> <td align="right">1</td> <td>KF1027A-02P-LG-ON-01B</td> <td>凯峰</td> <td>LCSC</td> <td>C976334</td> <td align="right">1.487</td> <td align="right">4</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://atta.szlcsc.com/upload/public/pdf/source/20201230/C976343_CACF45B35FFD28514ED564B10108BF0E.pdf</td> </tr> <tr> <td align="right" height="19">28</td> <td>输出通道</td> <td>SW2</td> <td>KEY-TH_4P-L6.0-W6.2-P2.54-LS7.62-BL</td> <td align="right">1</td> <td>KF1027A-02P-LG-ON-01B</td> <td>凯峰</td> <td>LCSC</td> <td>C976334</td> <td align="right">1.487</td> <td align="right">4</td> <td> </td> <td>LCSC</td> <td> </td> <td>https://atta.szlcsc.com/upload/public/pdf/source/20201230/C976343_CACF45B35FFD28514ED564B10108BF0E.pdf</td> </tr> <tr> <td align="right" height="19">29</td> <td>PJ-3136-B</td> <td>CN3</td> <td>AUDIO-TH_PJ-3136-B</td> <td align="right">1</td> <td>PJ-3136-B</td> <td>XKB Enterprise</td> <td>LCSC</td> <td>C381131</td> <td align="right">0.5242</td> <td align="right">6</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td height="19"> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">30</td> <td>2200uF</td> <td>C1</td> <td>CAP-TH_BD13.0-P5.00-D1.2-FD</td> <td align="right">1</td> <td>EWH1EM222K20OT</td> <td>AISHI</td> <td>LCSC</td> <td>C106733</td> <td align="right">1.1189</td> <td align="right">2</td> <td colspan="2">Extended Part</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">31</td> <td>220nF</td> <td>C2,C3</td> <td>C0603</td> <td align="right">2</td> <td>AC0603KRX7R8BB224</td> <td>YAGEO</td> <td>LCSC</td> <td>C726561</td> <td align="right">0.146</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">32</td> <td>100nF</td> <td>C4</td> <td>C1206</td> <td align="right">1</td> <td>CL31B104KEHSNNE</td> <td>SAMSUNG</td> <td>LCSC</td> <td>C73745</td> <td align="right">0.2724</td> <td align="right">2</td> <td colspan="2">Extended Part</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">33</td> <td>10uF</td> <td>C5</td> <td>CAP-TH_BD5.0-P2.00-D0.8-FD</td> <td align="right">1</td> <td>10uF 25V 5*11</td> <td>ValuePro</td> <td>LCSC</td> <td>C43347</td> <td align="right">0.0611</td> <td align="right">2</td> <td colspan="2">Extended Part</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">34</td> <td>PJ-3136-B</td> <td>CN1</td> <td>AUDIO-TH_PJ-3136-B</td> <td align="right">1</td> <td>PJ-3136-B</td> <td>XKB Enterprise</td> <td>LCSC</td> <td>C381131</td> <td align="right">0.5242</td> <td align="right">3</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">35</td> <td>RL207_C179541</td> <td>D1</td> <td>DO-15_BD3.1-L6.7-P10.70-D0.9-RD</td> <td align="right">1</td> <td>RL207</td> <td>Suzhou Good-Ark Elec</td> <td>LCSC</td> <td>C908695</td> <td align="right">0.1147</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">36</td> <td>12Vin</td> <td>DC1</td> <td>DC-IN-TH_DC-470-2.1GP</td> <td align="right">1</td> <td>DC-470-2.1GP</td> <td>GANGYUAN</td> <td>LCSC</td> <td>C194407</td> <td align="right">0.4</td> <td align="right">3</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">37</td> <td>1*10P 反弯 排针</td> <td>H1</td> <td>2.54MM/1*10P</td> <td align="right">1</td> <td>1*10P 反弯 排针</td> <td>BOOMELE(博穆精密)</td> <td>LCSC</td> <td>C86750</td> <td align="right">0.2931</td> <td align="right">9</td> <td> </td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">38</td> <td>313-2SYGD/S530-E2</td> <td>LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8,LED9,LED10,LED11,LED12,LED13,LED14,LED15,LED16,LED17,LED18,LED19,LED20</td> <td>LED-TH_BD5.9-P2.54-FD</td> <td align="right">20</td> <td>313-2SYGD/S530-E2</td> <td>Everlight Elec</td> <td>LCSC</td> <td>C264310</td> <td align="right">0.3105</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">39</td> <td>204-10SDRD/S530-A3-L</td> <td>LED21</td> <td>LED-TH_BD3.8-P2.54-FD</td> <td align="right">1</td> <td>204-10SDRD/S530-A3-L</td> <td>EVERLIGHT</td> <td>LCSC</td> <td>C84774</td> <td align="right">0.2147</td> <td align="right">2</td> <td colspan="2">Extended Part</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">40</td> <td>RK09L1140A5P</td> <td>R1,R2</td> <td>RES-ADJ-TH_RK09L1140A5P</td> <td align="right">2</td> <td>RK09L1140A5P</td> <td>ALPSALPINE(阿尔卑斯阿尔派)</td> <td>LCSC</td> <td>C231764</td> <td align="right">7.64</td> <td align="right">3</td> <td> </td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">41</td> <td>47k</td> <td>R3,R4</td> <td>R1206</td> <td align="right">2</td> <td>CRCW120647K0FKEA</td> <td>Vishay Intertech</td> <td>LCSC</td> <td>C844663</td> <td align="right">0.0907</td> <td align="right">2</td> <td> </td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">42</td> <td>4.7K</td> <td>R5</td> <td>RES-TH_BD2.3-L6.5-P10.50-D0.5</td> <td align="right">1</td> <td>-</td> <td>Chian Chia Elec</td> <td>LCSC</td> <td>C120071</td> <td align="right">0.0246</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">43</td> <td>1.2K</td> <td>R6,R9</td> <td>R1206</td> <td align="right">2</td> <td>1206W4F1201T5E</td> <td>UniOhm</td> <td>LCSC</td> <td>C17891</td> <td align="right">0.025</td> <td align="right">2</td> <td colspan="2">Extended Part</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">44</td> <td>10K</td> <td>R7,R8</td> <td>RES-ADJ-TH_3P-L10.0-W10.0-P2.50-L</td> <td align="right">2</td> <td>3296W-1-103</td> <td>Chengdu Guosheng Tech</td> <td>LCSC</td> <td>C118955</td> <td align="right">1.0208</td> <td align="right">3</td> <td>Extended Part</td> <td>LCSC</td> <td>10K</td> <td> </td> </tr> <tr> <td align="right" height="19">45</td> <td>TDA7297 Ar</td> <td>U1</td> <td>MULTIWATT-15_L19.6-W5.0-P1.27-L</td> <td align="right">1</td> <td>TDA7297</td> <td>STMicroelectronics</td> <td>LCSC</td> <td>C96009</td> <td align="right">11.52</td> <td align="right">12</td> <td>Extended Part</td> <td>Ar-Sr-Na</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">46</td> <td>保护电路</td> <td>U2</td> <td>CONN-TH_XY350V-3.5-3P</td> <td align="right">1</td> <td>XY350V-3.5-3P</td> <td>--</td> <td>LCSC</td> <td>C557655</td> <td align="right">0.8578</td> <td align="right">3</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">47</td> <td>LM3915N-1</td> <td>U3,U4</td> <td>DIP18</td> <td align="right">2</td> <td>DILB18P-223T</td> <td>Boom Precision Elec</td> <td>LCSC</td> <td>C609778</td> <td align="right">0.2206</td> <td align="right">18</td> <td> </td> <td> </td> <td> </td> <td>DotBar Display Driver, 18-pin MDIP</td> </tr> <tr> <td align="right" height="19">48</td> <td>15*10.5*21H型散热块（黑色）</td> <td>U5</td> <td>HEATSINK-TH_L15.5-W10.5-XSD1226-005</td> <td align="right">1</td> <td>15*10.5*21H型散热块（黑色）</td> <td>XSD(鑫顺达)</td> <td>LCSC</td> <td>C116600</td> <td align="right">1.1687</td> <td align="right">1</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">49</td> <td>左声道输出</td> <td>U7</td> <td>CONN-TH_XY303V-3.81-2P</td> <td align="right">1</td> <td>XY303V-3.81-2P</td> <td>--</td> <td>LCSC</td> <td>C557683</td> <td align="right">0.695</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td align="right" height="19">50</td> <td>右声道输出</td> <td>U8</td> <td>CONN-TH_XY303V-3.81-2P</td> <td align="right">1</td> <td>XY303V-3.81-2P</td> <td>--</td> <td>LCSC</td> <td>C557683</td> <td align="right">0.695</td> <td align="right">2</td> <td>Extended Part</td> <td>LCSC</td> <td> </td> <td> </td> </tr> <tr> <td height="19"> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align="right">74.224</td> <td align="right">187</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> </table> <p> </p> <h1>7、大赛LOGO验证</h1> <p>正面背面均有立创商城的logo：</p> <p><img src="//image.lceda.cn/pullimage/KRP4AMD9Qtnyxy27aiLPxaDBu6XJrCfYCy7Ywl9p.jpeg" alt="" width="1200" height="1200"></p> <h1>8、演示您的项目并录制成视频上传</h1> <p>见附件</p>