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#第六届立创电赛#迷你小蓝牙功放

创建时间:3年前

描述

<div class="document"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">注:* 为必填项</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><strong><span style="color:#0093e6;">请在报名阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;"><span style="font-size:14px;">   <span style="font-size:16px;color:#000000;">这是一个小功放,音源可以来自音频线信号输入,也可以来自蓝牙。需要typec口给他进行供电。经过测试,这个小功放的音质挺不错,手机音量调到最大也几乎没有失真,正常作为家用小音响效果不错。</span></span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;"><span style="font-size:14px;">首次公开,原创</span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">GPL3.0</span></p> <p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><strong><span style="color:#0093e6;">请在竞赛阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#000000;font-size:16px;">  使用PAM8406作为功放芯片,功放板上有多个电容(2个470uF,2个100uF,再加上其他小电容)进行滤波处理,增强音质(其实我也不知道有没有效果,但出来的音质确实不错)。隔离电容采用的是1uF的薄膜电容,是立创商城1块多一个的进口电容。整体电路板是对称布局,并且考虑了器件的高低,做出来的外观我认为十分帅气。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;"><span style="font-size:14px;"><img style="margin-left:auto;margin-right:auto;" src="//image.lceda.cn/pullimage/8Qff0rTMCGyVq2QzrU0PuTIfOagRtjhF1rBEy3Mb.jpeg" alt="" width="840" height="1120"></span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;"><span style="font-size:14px;"> 不用进行编程</span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/zwgyPBCN6JHlzFcwPyI0BI6U9fNhfe939bpg0IRg.png" alt="zwgyPBCN6JHlzFcwPyI0BI6U9fNhfe939bpg0IRg.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/5xDAADiI6c02iD0pCbujahOj9BTsQfY4GMCjNChj.png" alt="5xDAADiI6c02iD0pCbujahOj9BTsQfY4GMCjNChj.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img style="margin-left:auto;margin-right:auto;" src="//image.lceda.cn/pullimage/Du1x7g4Txn0mRA2tPNAjXHjXc0TRFV3b5n40JwKa.png" alt="Du1x7g4Txn0mRA2tPNAjXHjXc0TRFV3b5n40JwKa.png" width="796" height="1061"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="font-size:14px;">更多详情:<a href="/posts/06c94d90c2c447dfbd9ed7339ff4a5b1" target="_blank">https://diy.szlcsc.com/posts/06c94d90c2c447dfbd9ed7339ff4a5b1</a></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> </div>
  • 音频线输入演示.mp4

  • 蓝牙输入音频.mp4

文档

蓝牙小功放

蓝牙小功放

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part
1 470uF C1,C2 CAP-TH_BD6.3-P2.50-D1.0-FD 2
2 100uF C3,C4 CAP-SMD_BD5.0-L5.3-W5.3-FD 2
3 1uF C9,C10,C11,C12 C0805 4
4 104 C13 C0805 1
5 10uF C14 C0805 1
6 10uF C47 C0805 1
7 TS-1102S-C-A-B DOWN,ON/OFF,PAUSE,UP KEY-SMD_4P-L6.0-W6.0-P4.50-LS8.6 4
8 PJ-307C IN AUDIO-TH_PJ307C 1
9 100mH L5 C0805 1
10 2.0-2P WT LOUT,ROUT CONN-SMD_2.0-2PWT 2
11 LED-TH-5mm_B POW LED-TH_BD5.0_BLUE 1
12 S8050 Q1 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 1
13 9.1K R1,R40 R0805 2
14 0R R2,R41,R42 R0805 3
15 10k R3,R15 R0603 2
16 100 R14 R0603 1
17 51K R38 R0805 1
18 33K R39 R0805 1
19 SS-12D06L5 SW1 SW-TH_3P-P4.70_L11.1-W12.7 1
20 MFP211N SW2 SW-TH_MFP211N 1
21 TYPE-C-31-M-17 TYPE_C1 USB-C-SMD_10P-P1.00-L6.8-W8.9 1
22 1uF U1,U2 CAP-TH_L7.2-W6.0-P5.00-D0.6 2
23 PAM8406DR U4 SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL 1
24 BT_M18 U7 MH-M18蓝牙模块 1

附件

附件名 下载
音频线输入演示.mp4
BOM_#第六届立创电赛#迷你小蓝牙功放_2021-07-29.csv
PCB_蓝牙小功放_2021-07-29.pdf
Schematic_#第六届立创电赛#迷你小蓝牙功放_2021-07-29.pdf
蓝牙输入音频.mp4

成员

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独孤老人 回复
<p>这线路上没有电位器 怎么调节音量呢  求赐教。<br><br/>如果加电位器 是增加在 滤波前还是滤波后?</p>
Alexwen 回复
<p>通过音频输入端来调,就是比如手机音量键就能调,如果加电位器的话就加在滤波前</p>
独孤老人 回复
<p>多谢大佬  成品已经成功使用了。</p>
YHB1 回复
<p>不订钢网好焊吗</p>
独孤老人 回复
<p>我没弄钢网 用刀头焊的 5片样板  焊了3片焊  两片焊好 一片没焊好 (因我只需要一片,所以对我来说很完美。  2片没焊</p>
YHB1 回复
<p>谢谢</p>
亿滋年华 回复
<p>楼主用的喇叭链接有吗</p>
adan 回复
<p><a href="https://x.jlc.com/platform/detail/dfd88cbd53b64169a7c7042d79178efc%E6%80%8E%E4%B9%88%E8%BF%99%E4%B8%AA%E5%92%8C%E4%BD%A0%E7%9A%84%E6%96%B9%E6%A1%88%E4%B8%80%E6%A8%A1%E4%B8%80%E6%A0%B7%E7%9A%84" target="_blank">https://x.jlc.com/platform/detail/dfd88cbd53b64169a7c7042d79178efc怎么这个和你的方案一模一样的</a></p>
hdjdjdk 回复
<p>0603的100是100k还是100R?</p>
ZimaStraw 回复
<p>请问为什么INL&amp;INR没有像数据手册中那样在输入电容旁边加个输入电阻?[emojis:抱拳]</p>
fwtg 回复
<p>请问一下那个L5是电感还是磁珠?</p>
茴香豆的茴z 回复
<p>为什么我的蓝牙模块不亮啊,第一版key引脚没接,后来接地了能亮了,但是断断续续的。第二版接了key引脚,但是还是不亮</p>
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