{"id":399,"date":"2026-02-12T08:18:31","date_gmt":"2026-02-12T00:18:31","guid":{"rendered":"https:\/\/gccircuit.com\/wordpress\/?p=399"},"modified":"2026-02-12T08:18:32","modified_gmt":"2026-02-12T00:18:32","slug":"usb-dac-gc-v2-0-plus-pcm2706tda1543ra1%e8%80%b3%e6%93%b4","status":"publish","type":"post","link":"https:\/\/gccircuit.com\/wordpress\/2026\/02\/12\/usb-dac-gc-v2-0-plus-pcm2706tda1543ra1%e8%80%b3%e6%93%b4\/","title":{"rendered":"USB DAC GC-V2.0 Plus\u00a0(PCM2706+TDA1543+RA1\u8033\u64f4)"},"content":{"rendered":"\n<p>\u6703\u6709\u9019\u6a23\u7684\u69cb\u60f3,&nbsp;\u5df2\u7d93\u4e00\u6bb5\u6642\u9593\u4e86\uff0c\u60f3\u898f\u5283\u4e00\u500bUSB DAC,\u4f7f\u7528PCM2706\u4f86\u7576USB\u7684\u63a5\u6536\u5668\uff0c\u4f46\u7d93I2S\u628a\u6578\u4f4d\u8a0a\u865f\u9001\u5230\u7368\u7acb\u7684DAC\u89e3\u78bcIC\uff0c\u751a\u81f3\u9084\u53ef\u4ee5\u76f4\u63a5\u7d93\u7531I2S\u5916\u63a5\u5230\u6a5f\u5916\u7684\u7368\u7acbDAC\u6a21\u7d44\uff0c\u8b93\u9019\u500bDAC\u66f4\u52a0\u7684\u9748\u6d3b!<\/p>\n\n\n\n<p>\u4f46\u7531\u65bc\u5de5\u4f5c\u7684\u95dc\u4fc2\uff0c\u9019\u500b\u898f\u5283\u904e\u7a0b\u537b\u8d85\u904e\u4e86\u534a\u5e74..\u70ba\u4e86\u65b9\u4fbf\u4ee5\u5f8c\u7684\u53ef\u80fd\u8b8a\u52d5,&nbsp;\u6211\u9084\u5728Layout\u6642\u7559\u4e86\u4e00\u4e9b\u4ecb\u9762\u7684\u63a5\u9ede\uff0c\u6211\u5728\u5f8c\u9762\u6703\u518d\u8aaa\u660e\u3002<\/p>\n\n\n\n<p>USB\u63a5\u6536\u6211\u525b\u6709\u63d0\u904e,&nbsp;\u4f7f\u7528\u4e86PCM2706\u9019\u65b9\u4fbf\u7684\u63a5\u6536\u6676\u7247\uff0cWindows\u6216MAC\u4e0a\u90fd\u4e0d\u7528\u518d\u5b89\u88ddDriver,&nbsp;\u6211\u628a\u5b83\u8a2d\u5b9a\u5728\u5916\u63a5\u96fb\u6e90\u3001I2S\u8f38\u51fa\u7684\u6a21\u5f0f\u4e0b\u3002<\/p>\n\n\n\n<p>DAC\u89e3\u78bc\u8981\u7528\u4ec0\u9ebc\u5462?&nbsp;\u76f8\u4fe1\u4e0d\u5c11\u4eba\u65e9\u5c31\u5728\u7db2\u8def\u4e0a\u770b\u4e86\u6216\u73a9\u4e86TDA1543\u9019\u500b\u89e3\u78bcIC\uff0cTDA1543\u5728NOS\u6a21\u5f0f\u4e0b\u7684\u73a9\u6cd5\u9084\u771f\u7684\u4e0d\u5c11!&nbsp;\u4e00\u822cDAC\u4f7f\u7528\u8907\u96dc\u591a\u968e\u7684\u4f4e\u901a\u6ffe\u6ce2\u7dda\u8def\u6ffe\u966420KHz\u4ee5\u4e0a\u7684\u6578\u4f4d\u9ad8\u983b\uff0c\u800cNOS DAC\u5176\u5be6\u53ea\u9808\u8981\u7c21\u55ae\u7684\u6ffe\u6ce2\uff0c\u751a\u81f3\u53ef\u4ee5\u5b8c\u5168\u4e0d\u6ffe\u6ce2\uff0c\u800c\u5f97\u5230\u66f4\u76f4\u63a5\u3001\u66f4\u81ea\u7136\u7684\u8072\u97f3\u300220KHZ\u4ee5\u4e0a\u7684\u9ad8\u983b\u5c31\u8b93\u8a2d\u5099\u3001\u5587\u5587\u3001\u8033\u6735\u81ea\u7136\u7684\u904e\u6ffe\u3002\u53e6\u5916TDA1543\u672c\u8eab\u6709\u4e00\u500b\u76f8\u7576\u7368\u7279\u7684\u689d\u4ef6\uff0c\u5c31\u662f\u6709\u76f8\u7576\u5927\u7684\u8f38\u51fa\uff0c\u61c9\u8a72\u662f\u6240\u6709DAC chip\u4e2d\uff0c\u8f38\u51fa\u6700\u5927\u7684\u3002\u6240\u4ee5\u53ea\u8981\u4f7f\u7528\u7c21\u55ae\u7684passive I\/V\u5c31\u53ef\u4ee5\u5f97\u5230\u8db3\u5920\u7684\u8f38\u51fa\u96fb\u58d3\u64fa\u5e45\uff0c\u540c\u6642\u4e5f\u4e0d\u6703\u5f71\u97ff\u52d5\u614b\uff0c\u56e0\u6b64\u53ef\u4ee5\u7701\u4e0bI\/V\u548c\u653e\u5927\u8f38\u51fa\u7d1a\uff0c\u8b93\u96fb\u8def\u66f4\u7c21\u6f54\uff0c\u4fdd\u6301\u8072\u97f3\u7684\u76f4\u63a5\u8207\u81ea\u7136\u3002\u6240\u4ee5\u96fb\u8def\u975e\u5e38\u7684\u7c21\u55ae\uff0c\u4e14\u53c8\u597d\u73a9\uff0c\u53ef\u4e26\u806f\uff0c\u53ef\u6539\u4f9b\u96fb\u58d3\uff0c\u53ef\u6539\u8f38\u51fa\u96fb\u5e73\u2026\u5982\u4f55\u73a9?\u7db2\u8def\u4e0a\u6709\u4e0d\u5c11\u7684\u5167\u5bb9\u53ef\u4ee5\u53c3\u8003\uff0c\u5927\u5bb6\u5c31Google\u4e00\u4e0b\u5427!<\/p>\n\n\n\n<p>\u800c\u6211\u628aTDA1543&nbsp;\u76ee\u6a19\u8a2d\u5b9a\u5728\u55ae\u9846\u89e3\u78bc\uff0c\u8f38\u51fa1Vrms\uff0c\u4f9b\u96fb\u96fb\u58d38V\u3002<\/p>\n\n\n\n<p>\u4e4b\u524d\u7684<a target=\"_blank\" href=\"http:\/\/www.jd-bbs.com\/www.diyzone.net\" rel=\"noreferrer noopener\">www.diyzone.net<\/a>\u4e0a\u6709\u5b8c\u6574\u7684\u8a08\u7b97\u4ecb\u7d39\uff0c\u4f46\u73feDIY ZONE\u5927\u5bb6\u4e5f\u90fd\u77e5\u9053\u201d\u95dc\u9589\u4e86\u201d\uff0c\u4f46\u9084\u662f\u6709\u4eba\u4fdd\u7559\u4e86\u4e0b\u4f86\u6709\u8208\u8da3\u7684\u4eba\u53ef\u4ee5\u597d\u597d\u8b80\u4e00\u4e0b:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"489\" height=\"246\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-98.png\" alt=\"\" class=\"wp-image-401\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-98.png 489w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-98-300x151.png 300w\" sizes=\"auto, (max-width: 489px) 100vw, 489px\" \/><\/figure>\n\n\n\n<p>\u5728\u9019\u7db2\u9801\u4e0a\u4ed6\u6b78\u7d0d\u51fa\u4e3b\u8981\u7684\u8a08\u7b97\uff0c\u5927\u5bb6\u53ef\u4ee5\u53c3\u8003\u4e00\u4e0b:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6709\u4e09\u652f\u96fb\u963b\u8981\u6c7a\u5b9a\u963b\u503c\uff0cRL1\u3001RL2\u3001Rbias\uff0c\u5176\u4e2dRL1\u7b49\u65bcRL2\u3002\u00a0<\/li>\n\n\n\n<li>\u6211\u5011\u8981\u6c7a\u5b9a\u4f9b\u61c9\u96fb\u58d3Vdd\u662f\u591a\u5c11\uff0cVdd\u6700\u5927\u53ef\u52308V,\u00a0\u6700\u5c0f\u53ef\u52303V\u3002\u00a0<\/li>\n\n\n\n<li>\u67e5\u51faTDA1543\u7684\u6a21\u64ec\u8f38\u51fa\u7684\u76f4\u6d41\u96fb\u58d3\u7bc4\u570dVoc\u662f\u591a\u5c11\uff0c\u662f1.8 ~ (Vdd &#8211; 1.2) VDC\u3002\u00a0<\/li>\n\n\n\n<li>\u67e5\u51faTDA1543\u5728\u5168\u7bc4\u570d\u8f38\u51fa\u6642\u7684\u96fb\u6d41Ifs\u662f\u591a\u5c11\uff0c\u662f2.3mA\u3002\u00a0<\/li>\n\n\n\n<li>\u7136\u5f8c\u6211\u5011\u8981\u6c7a\u5b9a\u4e00\u4e0b\u8f38\u51fa\u96fb\u58d3Vout\u7684\u5cf0\u503c\u96fb\u58d3\u64fa\u5e45\u662f\u591a\u5c11\u3002\u00a0<\/li>\n\n\n\n<li>\u7b97\u51faRL1\u548cRL2\uff0c\u516c\u5f0f\u662f(Vout \/ RL1 ) = 2.3mA\u3002\u00a0<\/li>\n\n\n\n<li>\u67e5\u51faVref\uff08\u504f\u58d3\u53c3\u8003\u96fb\u58d3\uff09\u548cAIbias\uff08\u504f\u58d3\u96fb\u6d41\u589e\u76ca\uff09\uff0cVref = 2.2VDC\u3001AIbias = 2\u3002\u00a0<\/li>\n\n\n\n<li>\u7b97\u51faR3\u8981\u8a2d\u591a\u5c11\uff0c\u516c\u5f0f\u662f\uff1a\u00a0<\/li>\n<\/ol>\n\n\n\n<p>    RL1 = (Vout \/ 2.3) Kohm\u00a0<br>    Vmp = (1.8 + 0.5 x Vout) VDC\u00a0<br>    (Ibias &#8211; Idac) = (Vmp\/RL1) mA\u00a0<br>    Idac = (Ifs \/ 2) mA\u00a0<br>    (Ibias &#8211; Idac) + Idac = AIbias x (Vref \/ Rbias)\u00a0<br>    \u800c\u4ee3\u5165\u5df2\u77e5\u7684\u6578\u503c\u4e4b\u5f8c\u6211\u5011\u53ef\u4ee5\u6574\u7406\u51fa\u5f88\u7c21\u55ae\u5c31\u53ef\u4ee5\u6c42\u51faRL1\u548cR3\u7684\u516c\u5f0f\uff1a\u00a0<br>    (0 &lt; Vout &lt; Vdd &#8211; 1.2) Vpp\u00a0<br>    RL1 = (Vout \/ 2.3) Kohm\u00a0<br>    Rbias = 4.4 \/ ( (4.14 \/ Vout) + 2.3) Kohm\u00a0<\/p>\n\n\n\n<p>\u6211\u6703\u4f7f\u75288V\u4f86\u7576\u4ed6\u7684\u96fb\u6e90,\u662f\u6c42\u5f97\u66f4\u5927\u7684\u52d5\u614b\u7bc4\u570d\uff0c\u5148\u4f86\u7b97\u51faRL:<br>\u8f38\u51fa\u6e96\u4f4d\u6211\u76ee\u6a19\u662f1Vrms,\u4e5f\u5c31\u662f2.8Vpp (1Vrms x 1.414 x 2=2.8Vpp)\uff0cVout\u9664\u8207Ifs\uff08\u5168\u7bc4\u570d\u8f38\u51fa\u96fb\u6d41\uff09\uff0c\u4e5f\u5c31\u662f2.8Vpp \/2.3mA = 1.21K,\u9019\u5c31\u662fRL1\u548cRL2\u3002<br>*\u4e0a\u8ff0\u7b2c6\u9805\u3002<br>\u518d\u4f86\u6c42Rbias:<br>TDA1543 \u7684\u8f38\u51fa\u96fb\u6d41 Ifs \u6a19\u6e96\u503c\u662f 2.3mA\uff0c\u5141\u8a31\u7684\u96fb\u58d3\u64fa\u5e45\u5728 1.8V \u5230 VDD &#8211; 1.2V \u4e4b\u9593\uff0c\u6240\u4ee5\u5982\u679c\u4f60\u7528 8V \u4f9b\u96fb\uff0c\u8f38\u51fa\u96fb\u58d3\u7684\u64fa\u5e45\u5c31\u5728 1.8V \u5230 6.8V\uff0c\u4e2d\u9ede\u5728 4.3V\u3002<br>\u9019\u500b\u4e2d\u9ede\u96fb\u58d3\u662f\u7531Ibias &#8211; Idac\u5f8c\u7684\u96fb\u6d41\u4e58\u4e0aRL1\/RL2\u96fb\u963b\u5f97\u4f86\u7684\u3002\u53cd\u63a8\u56de\u53bb\uff0c\u6211\u5011\u53ef\u4ee5\u5f97\u77e5 (Ibias &#8211; Idac) x 1.2K = 4.3VDC\uff0c\u6240\u4ee5(Ibias -Idac)\u9019\u6642\u300c\u5fc5\u9700\u300d\u8981\u662f3.58mA\u5de6\u53f3\uff0c\u9019\u6642\u85c9\u7531Ifs(\u5168\u7bc4\u570d\u8f38\u51fa\u96fb\u6d41)\u70ba2.3mA\u53ef\u5f97\u77e5\uff0c\u6c92\u8f38\u51fa\u6642\u5c31\u662fIfs\u7684\u4e00\u534a\u96fb\u6d41\uff0c\u4e5f\u5c31\u662f2.3mA \/ 2 = 1.15mA\uff0c\u6240\u4ee5\u6b64\u6642\u7684(Ibias &#8211; Idac) + Idac = 3.58 + 1.15 = 4.73mA\uff0c\u4e5f\u5c31\u662f\u8aaa\u5be6\u969b\u4e0a\u6b64\u6642\u6703\u901a\u904e\u7684\u7e3d\u96fb\u6d41\u70ba4.73mA\uff0c\u9019\u500b\u6642\u5019\u5c31\u8981\u9760TDA1543\u7684Vref\u8173\u4f4d\u4f86\u8a2d\u5b9a\uff0c\u5728Datasheet\u88e1Vref\u662f\u56fa\u5b9a\u57282.2 +- 0.1VDC\u7684\u96fb\u4f4d\uff0c\u4e14\u901a\u904eVref\u7684\u96fb\u6d41\u6703\u88ab\u4e58\u4ee5AIbais\uff08bias current gain\uff09\u4e4b\u5f8c\u8f38\u51fa\u5230DAC\u8f38\u51fa\uff0c\u6240\u4ee5\u7576\u6211\u5011\u8981\u8f38\u51fa4.37mA\u6642\uff0c\u5fc5\u9700\u5728Vref\u548cGND\u4e4b\u9593\u4e32\u4e00\u652f\u9069\u7576\u963b\u503c\u7684\u96fb\u963b\u4f86\u8a2d\u5b9a\u504f\u58d3\uff0c\u9019\u500b\u96fb\u963b\u5c31\u662fR3\uff01R3\u7684\u6578\u503c\u600e\u9ebc\u8a08\u7b97\uff1f\u6211\u5011\u77e5\u9053AIbias\u7d04\u70ba2\u500d\uff0c\u800cVref\u7d04\u70ba2.2VDC\uff0c\u6240\u4ee5 4.37mA = AIbias x (Vref \/R3) = 2 x (2.2 \/ R3)\uff0c\u6240\u4ee5\u53ef\u4ee5\u6c42\u5f97R3\u7d04\u70ba1.0K\u3002<\/p>\n\n\n\n<p>\u70ba\u4e86\u8b93\u5b83\u5728\u4f7f\u7528\u4e0a\u66f4\u6709\u5f48\u6027\uff0c\u9664\u4e86\u6a19\u6e96\u7684RCA\u97f3\u6e90\u8f38\u51fa\u5916\uff0c\u6211\u9084\u70ba\u5b83\u52a0\u4e0a\u4e86\u96fb\u8def\u7c21\u55ae\uff0c\u5927\u5bb6\u53c8\u611b\u7528\u7684<strong>RA1\u8033\u64f4<\/strong><br>\u96fb\u8def\uff0c\u9019\u6a23\u525b\u958b\u59cb\u6c92\u6709\u592a\u591a\u9810 \u7b97\u7684\u4eba\uff0c\u4e5f\u80fd\u76f4\u63a5\u7528\u5b83\u63a5\u4e0a\u8033\u6a5f\uff0c\u99ac\u4e0a\u4eab\u53d7!\u00a0\u6211\u7528\u7684OP\u9084\u662f\u8ddf\u539f\u5ee0\u4e00\u6a23\u7684\u578bNE4556\uff0c\u9019\u9846\u5927\u6d41\u6d41\u51fa\u529b\u7684OP\uff0c\u6548\u679c\u8001\u5be6\u8aaa\uff0c\u771f\u7684\u4e0d\u932f!\u00a0\u53ea\u662f\u6709\u807d\u904eRA1\u7684\u4eba\u4e5f\u8a31\u90fd\u6709\u611f\u89ba\uff0cNE4556\u7684\u5e95\u566a\u68a2\u5927\u4e86\u4e00\u4e9b\uff0c\u96d6\u662f\u9019\u6a23\u4e00\u76f4\u4ee5\u4f86RA1\u9084\u662f\u8ce3\u5f97\u4e0d\u932f\uff0c\u6211\u81ea\u5df1\u6709\u63db\u7528\u5225\u8173\u4f4d\u76f8\u5bb9\u7684\u96d9OP\u4f86\u5617\u8a66\uff0c\u6709\u7684\u5e95\u566a\u5c11\u4e86\u5f88\u591a\uff0c\u4f46\u63a8\u529b\u597d\u50cf\u5c0f\u4e86\u9ede\uff0c\u7562\u7adf\u9019\u8033\u64f4\u53ea\u662f\u9019DAC\u9644\u52a0\u7684\u529f\u80fd\uff0c\u4e5f\u5225\u5728\u610f\u4e86\uff0c\u9084\u662f\u4ee5\u5916\u63a5\u81f3\u64f4\u5927\u6a5f,\u00a0\u6216\u81ea\u5df1\u7684\u8033\u64f4\u70ba\u4e3b\u5566!\u00a0\u4f46\u9019\u9644\u52a0\u7684\u8033\u64f4\u5012\u70ba\u5165\u9580\u8005\u7701\u4e0b\u4e86\u4e0d\u5c11\u6210\u672c!<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\u96fb\u6e90\u7684\u914d\u7f6e\u6211\u4e5f\u4f86\u8aaa\u4e00\u4e0b\uff0c\u56e0\u70ba\u4f7f\u7528\u4e86RA1\u7684\u96fb\u8def\uff0cOP\u7684\u96fb\u6e90\u4fdd\u7559\u4e86\u96d9\u6e90\u7684\u914d\u7f6e\uff0c\u4f46\u56e0\u70ba\u539f\u4f86\u9810\u8a2d\u6a5f\u6bbc\u7684\u9ad4\u7a4d\u653e\u4e0d\u7528\u5920\u7528\u7684\u8b8a\u58d3\u5668\uff0c\u6240\u4ee5\u96fb\u6e90\u9084\u662f\u5916\u63a5\uff0c\u4f46\u5916\u63a5\u96fb\u6e90\u901a\u5e38\u90fd\u53ea\u6709\u55ae\u96fb\u6e90\uff0c\u6240\u4ee5\u6211\u7528\u4e86\u4e00\u500b\u865b\u64ec\u5730\u7684\u96fb\u8def\uff0c\u628a\u4f9b\u96fb\u58d3\u7684DC 24V\uff0c\u8f49\u63db\u70ba+-12V\u7684\u96d9\u96fb\u6e90\uff0c\u5b83\u662f\u5229\u7528OP\u4f3a\u670d\u7684\u65b9\u5f0f\uff0cOP\u7684\u8f38\u51fa\u6210\u70ba1\/2 VCC (12V)\uff0c\u62ff\u9019\u500b\u9ede\u4f86\u7576\u6211\u5011\u7684\u5730\u9ede\uff0c\u90a3\u539f+24V\u76f8\u5c0d\u5c31\u6210\u4e86+12V\uff0c\u539f0V\u76f8\u5c0d\u5c31\u6210\u4e86-12V\uff0c\u4e14\u70ba\u4e86\u8b93\u4ed6\u4e0d\u53d7\u8ca0\u8f09\u7684\u5f71\u97ff\u592a\u5927\uff0c\u6211\u7528\u4e86\u8f03\u5927\u529f\u7387\u7684\u64f4\u5927\u6a5f\u6676\u7247LM1875\u4f86\u66ff\u4ee3\u9019\u500bOP\uff0c\u5206\u58d3\u5f8c\u96fb\u6e90\u5e73\u8861\u7684\u6548\u679c\u4e0d\u932f!<\/p>\n\n\n\n<p>\u53e6\u5916\u518d\u5f9e+12V\u7d93\u4e007805\u7a69\u58d3IC\u7522\u751f+8V\u4f86\u4f9b\u61c9TDA1543\u7684\u6e90\uff0c\u4e26\u518d\u5f9e\u9019+8V\u7d93L1117-3.3V\u4f86\u7522\u751f+3.3V\u4f86\u4f9b\u7d66PCM2706\u7684\u4f9b\u96fb\u3002<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p>\u5916\u63a5I2S\uff0c\u6211\u5229\u7528\u4e86\u4e00\u500bRJ45\u7684\u63a5\u982d\u4f86\u9054\u6210\u5916\u63a5\u7684\u76ee\u7684\u3002\u63a5\u9ede\u7684\u5b9a\u7fa9\u5982\u4e0b\u5716:<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"449\" height=\"146\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-99.png\" alt=\"\" class=\"wp-image-402\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-99.png 449w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-99-300x98.png 300w\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>\u96fb\u8def\u677f\u7684LAYOUT\uff0c\u6211\u5011\u53ef\u80fd\u6703\u914d\u5408\u8ddf\u771f\u7a7a\u7ba1\u64f4\u4e00\u6a23\u5927\u5c0f\u7684\u5916\u6bbc\uff0c\u5230\u6642\u5169\u53f0\u653e\u4e00\u8d77\u53ef\u80fd\u883b\u8ff7\u4eba\u7684!<\/p>\n\n\n\n<p>\u70ba\u4e86\u518d\u7d66\u611b\u73a9\u7684\u4eba\u66f4\u5927\u7684\u5f48\u6027\uff0c\u96fb\u8def\u4e2dTDA1543\u89e3\u78bc\u7684\u4f4d\u7f6e\uff0c\u6703\u4fdd\u7559\u96fb\u8def\u4e2d\u7684I2S\u8f38\u5165\u9ede\u53ca\u89e3\u78bc\u5f8c\u7684\u97f3\u6e90\u8f38\u51fa\u9ede\uff0c\u4e26\u653e\u4e0a\u63d2\u5ea7\uff0c\u7576\u81ea\u5df1\u6709\u80fd\u529b\u8a2d\u8a08DAC\u89e3\u78bc\u677f\u6642(\u6bd4\u5982PCM1794\u7b49\u89e3\u78bc\u96fb\u8def)\uff0c\u53ef\u4ee5\u7528\u53d6\u4ee3TDA1543\uff0c\u5230\u6642\u62d4\u6389\u539f\u677f\u4e0a\u7684TDA1543\u53ca3\u500bJUMPER\uff0c\u5c31\u7528\u524d\u5f8c\u7684\u64f4\u5145\u63a5\u982d\u4f86\u63d2\u4e0a\u4f60\u7684\u65b0\u8a2d\u8a08\uff0c+-12\u53ca8V(\u53ef\u96a878XX\u800c\u6539\u8b8a\u96fb\u58d3)\u5e7e\u500b\u96fb\u58d3\u9ede\u4e5f\u8a2d\u8a08\u5728\u64f4\u5145\u63d2\u5ea7\u4e0a\uff0c\u7576\u7136\u53d7\u9650\u65bc\u6574\u9ad4\u7684\u9ad4\u7a4d\uff0c\u4f60\u8981\u81ea\u5df1\u8a2d\u8a08\u6b64\u64f4\u677f\u6642\uff0c\u4e0d\u80fd\u592a\u5927\uff0c\u6211\u6703\u628a\u5c0d\u7167\u5716\u7d66\u5927\u5bb6\u3002<\/p>\n\n\n\n<p><strong>\u4ee5\u4e0b\u662f\u6211\u6574\u5408\u5f8c\u7684\u96fb\u8def\u5716:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"894\" height=\"1024\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-894x1024.png\" alt=\"\" class=\"wp-image-403\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-894x1024.png 894w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-262x300.png 262w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-768x880.png 768w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-1341x1536.png 1341w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-100-1787x2048.png 1787w\" sizes=\"auto, (max-width: 894px) 100vw, 894px\" \/><\/figure>\n\n\n\n<p><strong>\u4ee5\u4e0b\u70ba\u662f\u96fb\u8def\u677f\u7684\u96f6\u4ef6\u914d\u7f6e\u5716\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"611\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101-1024x611.png\" alt=\"\" class=\"wp-image-404\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101-1024x611.png 1024w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101-300x179.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101-768x458.png 768w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101-1536x916.png 1536w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-101.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u96fb\u8def\u677f\u5e95\u7247\u5716:\u96d6\u7136\u4e0d\u5bb9\u6613\u88fd\u4f5c,\u6211\u9084\u662f\u628a\u96fb\u8def\u677f\u5e95\u7247\u7684PDF\u6a94\u5206\u4eab\u7d66\u5927\u5bb6,\u4e0b\u8f09\u5f8c\u5217\u5370\u6642\u8acb\u53d6\u6d88PDF\u5217\u5370\u6642\u81ea\u52d5\u7e2e\u653e\u7684\u9078\u9805!<a href=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/USBDACV2-FILM.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">USBDACV2-FILM.pdf<\/a><\/p>\n\n\n\n<p>\u53e6\u5916\u9644\u4e0a\u64f4\u5145\u7248\u63a5\u9ede\u5c3a\u540b\u5716,\u5982\u679c\u4f60\u81ea\u5df1\u8981\u81ea\u5df2\u8a2d\u8a08\u5916\u63d2DAC\u89e3\u78bc\u677f\u6642\u53ef\u4ee5\u53c3\u8003:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"959\" height=\"694\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-102.png\" alt=\"\" class=\"wp-image-405\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-102.png 959w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-102-300x217.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-102-768x556.png 768w\" sizes=\"auto, (max-width: 959px) 100vw, 959px\" \/><\/figure>\n\n\n\n<p>\u4ee5\u4e0a\u4ee5\u516c\u5236mm\u70ba\u55ae\u4f4d\u2191<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"963\" height=\"701\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-103.png\" alt=\"\" class=\"wp-image-406\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-103.png 963w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-103-300x218.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-103-768x559.png 768w\" sizes=\"auto, (max-width: 963px) 100vw, 963px\" \/><\/figure>\n\n\n\n<p>\u4ee5\u4e0a\u4ee5Mil\u70ba\u55ae\u4f4d\u2191<\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color wp-elements-908872f0f9b43494ac8afaa303a375b5\" style=\"color:#fdf20a;background-color:#fd2200\"><strong>\u96f6\u4ef6\u6e05\u55ae(\u4ee5\u96fb\u8def\u677f\u4e0a\u7de8\u865f\u70ba\u4e3b):<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u7de8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u865f<\/td><td>\u578b&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u865f<\/td><td>\u6578\u91cf<\/td><td>\u7de8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u865f<\/td><td>\u578b&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u865f<\/td><td>\u6578\u91cf<\/td><\/tr><tr><td>U1<\/td><td>LM1875<strong>(\u6b63\u5ee0)<\/strong><\/td><td>1<\/td><td>C1<\/td><td>0.1uF(104)\u91d1\u5c6c\u76ae\u819c<\/td><td>1<\/td><\/tr><tr><td>U2<\/td><td>L1117-3.3<\/td><td>1<\/td><td>C112 C113<\/td><td>0.1uF(104)\u91d1\u5c6c\u76ae\u819c<strong>(ARCOTRONICS AV MKT \u8584\u819c\u96fb\u5bb9(\u7fa9\u5927\u5229)<\/strong><\/td><td>2<\/td><\/tr><tr><td>U3<\/td><td>L7808<\/td><td>1<\/td><td>C3 C4 C7 C8 C11 C12 C101 C108 C109&nbsp; C115 C117<\/td><td>0.1uF(104)\u7a4d\u5c64\u96fb\u5bb9<\/td><td>11<\/td><\/tr><tr><td>U4(1)<\/td><td>TDA1543<\/td><td>1<\/td><td>C105 C106<\/td><td>33p \u9676\u74f7<\/td><td>2<\/td><\/tr><tr><td>U4(2)<\/td><td>PCM2706<strong>(\u6b63\u5ee0\u975eSAMPLE)<\/strong><\/td><td>1<\/td><td>C2 C5 C6<\/td><td>1000uF\/35V<strong>(\u65e5\u7cfb)<\/strong><\/td><td>3<\/td><\/tr><tr><td>U5<\/td><td>74HC08<\/td><td>1<\/td><td>C9<\/td><td>220uF<strong>(\u65e5\u7cfb)<\/strong><\/td><td>1<\/td><\/tr><tr><td>U6<\/td><td>NE4556<strong>(JRC)<\/strong><\/td><td>1<\/td><td>C10 C13<\/td><td>10uF<strong>(\u65e5\u7cfb)<\/strong><\/td><td>2<\/td><\/tr><tr><td>\u6563\u71b1\u7247<\/td><td>FOR TO-220<\/td><td>1<\/td><td>C107<\/td><td>1uF\u96fb\u89e3\u6216<strong>\u926d\u8cea<\/strong><\/td><td>1<\/td><\/tr><tr><td>R1 R2 R3 R4 R111<\/td><td>10K(\u7cbe\u5bc6)<\/td><td>5<\/td><td>C14 C110 C111 C114 C116 C1402<\/td><td>100uF<strong>(\u65e5\u7cfb)<\/strong><\/td><td>6<\/td><\/tr><tr><td>R101 R102 R103 R104 R107 R108<\/td><td>22R(\u7cbe\u5bc6)<\/td><td>6<\/td><td>J1<\/td><td>2.1mmDC&nbsp;\u5ea7<\/td><td>1<\/td><\/tr><tr><td>R112 RL2<\/td><td>1K(\u7cbe\u5bc6)<\/td><td>2<\/td><td>J2<\/td><td>USB+RJ45\u5ea7<\/td><td>1<\/td><\/tr><tr><td>R106<\/td><td>1M(\u7cbe\u5bc6)<\/td><td>1<\/td><td>J3<\/td><td>2&nbsp;\u5b54RCA&nbsp;\u5ea7<\/td><td>1<\/td><\/tr><tr><td>R113 R114<\/td><td>1.2K(\u7cbe\u5bc6)<\/td><td>2<\/td><td>J4<\/td><td>3.5mm\u7acb\u9ad4\u8033\u6a5f\u5ea7<\/td><td>1<\/td><\/tr><tr><td>R105 R109 R110<\/td><td>1.5K(\u7cbe\u5bc6)<\/td><td>3<\/td><td>J5<\/td><td>6.3mm\u7acb\u9ad4\u8033\u6a5f\u5ea7<\/td><td>1<\/td><\/tr><tr><td>R115 R116<\/td><td>100K(\u7cbe\u5bc6)<\/td><td>2<\/td><td>CON1<\/td><td>6&nbsp;Pin\u91dd\u8173<\/td><td>1<\/td><\/tr><tr><td>R117 R118<\/td><td>121K(\u7cbe\u5bc6)<\/td><td>2<\/td><td>CON2<\/td><td>5 Pin\u91dd\u8173<\/td><td>1<\/td><\/tr><tr><td>R119 R120<\/td><td>464K(\u7cbe\u5bc6)<\/td><td>2<\/td><td>JP<\/td><td>3 Pin\u91dd\u8173<\/td><td>2<\/td><\/tr><tr><td>RL1<\/td><td>200R~250R\/1W(\u70ad\u819c)<\/td><td>1<\/td><td>Jumper<\/td><td>\u8df3\u7dda\u593e<\/td><td>3<\/td><\/tr><tr><td>&nbsp;<\/td><td>&nbsp;<\/td><td>\u3000<\/td><td>VR1<\/td><td>50K\u96d9\u9023\u5e36\u958b\u95dc<\/td><td>1<\/td><\/tr><tr><td>L1<\/td><td>10uH<\/td><td>1<\/td><td>LED1<\/td><td>Red<\/td><td>1<\/td><\/tr><tr><td>BRAD1,BEAD2<\/td><td>\u78c1\u73e0<\/td><td>2<\/td><td>LED2<\/td><td>Blue<\/td><td>1<\/td><\/tr><tr><td>XTAL1<\/td><td>12MHz XTAL<\/td><td>1<\/td><td>USB Cable(\u50b3\u8f38\u7dda)<\/td><td>USB-A \u516c\u5c0d\u516c(\u542b\u78c1\u5fc3)<\/td><td>1<\/td><\/tr><tr><td>\u96fb\u6e90\u9069\u914d\u5668(\u4e0d\u542b\u5728\u96f6\u4ef6\u5305\u5167)<\/td><td><strong>24V\/1A&nbsp; Switching Power (\u5c08\u7528)<\/strong><\/td><td>1<\/td><td>\u7d55\u7de3\u588a\u53ca\u7d55\u7de3\u5e3d<\/td><td>\u3000<\/td><td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background has-link-color wp-elements-fa383f601d4cd9e95c0d0408015c997c\" style=\"color:#f9dd01;background-color:#fe0101\"><strong>DIY\u6ce8\u610f\u4e8b\u9805\u8aaa\u660e: (\u8acbDIY\u8005\u4e00\u5b9a\u8981\u4ed4\u7d30\u770b\u904e!)<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5148\u710aSMD\u7684\u96f6\u4ef6\uff0cSMD\u96f6\u4ef6\u63a5\u8173\u5f88\u8fd1,\u710a\u63a5\u6642\u53ef\u4ee5\u7528\u5c0f\u74e6\u6578(20~30W)\u3001\u7d30\u5c16\u982d\u7684\u70d9\u9435\u4f86\u65bd\u4f5c,\u53e6\u6709\u4e00\u7a2e2\u6bb5\u5f0f\u53ef\u77ac\u9593\u52a0\u71b1\u7684\u70d9\u9435\u4e5f\u4e0d\u932f\u3002<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"564\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-104.png\" alt=\"\" class=\"wp-image-407\" style=\"aspect-ratio:0.8865493835711318;width:264px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-104.png 500w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-104-266x300.png 266w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<p>SMD\u710a\u63a5\u53ef\u53c3\u8003:YOUTUBE,\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=t_gQvvZl9cM\">https:\/\/www.youtube.com\/watch?v=t_gQvvZl9cM<\/a><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"[\u6559\u5b78] PCM2706 SMD \u710a\u63a5\u6559\u5b78 surface mount soldering\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/t_gQvvZl9cM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u96f6\u4ef6\u5118\u91cf\u63d2\u5230\u5e95\u518d\u710a\u63a5\uff0c\u710a\u932b\u6642\u4e5f\u6700\u597d\u4e00\u6b21\u5230\u4f4d\uff0c\u4e0d\u8981\u56e0\u64d4\u5fc3\u628a\u96f6\u4ef6\u71d2\u58de\u800c\u591a\u6b21\u540c\u4e00\u500b\u710a\u9ede\u4e0a\u65bd\u4f5c,\u53cd\u800c\u628a\u9285\u7b94\u7d66\u71d2\u7684\u812b\u96e2\u96fb\u8def\u677f\u672c\u9ad4!<\/li>\n<\/ol>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>RL1(\u96fb\u6e90\u5e73\u8861\u8ca0\u8f09)\u96fb\u8def\u677f\u4e0a\u6a19200R\uff0c\u7d93\u6e2c\u8a66\u6539\u7528250R\/1W\u3002 \u70ba\u4e86\u5e6b\u808b\u9019\u9846\u96fb\u963b\u6563\u71b1\uff0c\u53ef\u4ee5\u76f4\u7acb\u7684\u65b9\u5f0f\u710a\u63a5!<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"428\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-105.png\" alt=\"\" class=\"wp-image-408\" style=\"aspect-ratio:1.4019203387974153;width:331px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-105.png 600w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-105-300x214.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>LM1875\u9700\u52a0\u88dd\u6563\u71b1\u7247\uff0c\u7d55\u7de3\u7247\u53ca\u7d55\u7de3\u5e3d\u7684\u76f8\u5c0d\u4f4d\u7f6e\u5716\u5982\u4e0b\uff0c\u78ba\u4fddLM1875\u7684\u6563\u71b1\u5c0e\u7247\u8207\u52a0\u88dd\u7684\u6563\u71b1\u7247\u662f\u7d55\u7de3\u7684\u3002<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"355\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-106.png\" alt=\"\" class=\"wp-image-409\" style=\"width:256px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-106.png 500w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-106-300x213.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>RCA\u5750\u7684\u5169\u5074\u6709\u56fa\u5b9a\u63d2\u68a2\uff0c\u5c0d\u61c9\u96fb\u8def\u677f\u4e0a\u7684\u56fa\u5b9a\u5b54\uff0c\u5982\u679c\u89ba\u5f97\u592a\u7dca\u4e0d\u597d\u63d2\u9032\u53bb\uff0c\u53ef\u4ee5\u5982\u4e0b\uff0c\u7528\u7f8e\u5de5\u5200\u6216\u659c\u53e3\u9257\u628a\u63d2\u68a2\u7684\u5bec\u5ea6\u524a\u7a84\u4e00\u9ede\u3002<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"559\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-107.png\" alt=\"\" class=\"wp-image-410\" style=\"aspect-ratio:1.4311670160726764;width:372px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-107.png 800w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-107-300x210.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-107-768x537.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<ol start=\"6\" class=\"wp-block-list\">\n<li>XTAL 12Mhz\u77f3\u82f1\u6676\u9ad4\uff0c\u6709\u90e8\u4efd\u7ad9\u53cb\u5728\u710a\u63a5\u6642\u767c\u73fe\uff0cXTAL\u7684\u91d1\u5c6c\u5916\u6bbc\uff0c\u56e0\u8cbc\u96fb\u8def\u677f\u710a,\u6709\u4e9b\u4eba\u6703\u8ddf\u96fb\u8def\u677f\u4e0a\u710a\u63a5\u5b54\u4f4d\u7684PAD\u77ed\u8def\uff0c\u5efa\u8b70\u53ef\u4ee5\u5728\u63d2\u4e0aXTAL\u524d\uff0c\u5148\u7528\u4e00\u900f\u660e\u81a0\u5e36\u8cbc\u5728\u96fb\u8def\u677f\u77f3\u82f1\u6676\u7684\u4f4d\u7f6e\u4e0a\uff0c\u5728\u63d2\u4e0aXTAL\u5c31\u4e0d\u6703\u77ed\u8def\u4e86!<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"555\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-108.png\" alt=\"\" class=\"wp-image-411\" style=\"aspect-ratio:1.4415077143415143;width:389px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-108.png 800w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-108-300x208.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-108-768x533.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<ol start=\"7\" class=\"wp-block-list\">\n<li>USB\u542bRJ-45\u7684\u5ea7\u56e0\u8173\u4f4d\u6578\u5f88\u591a\uff0c\u63d2\u4e0a\u6642\u6709\u9ede\u8010\u5fc3\uff0c\u78ba\u5b9a\u6bcf\u652f\u8173\u90fd\u63d2\u5165\u710a\u5b54\u3002<\/li>\n<\/ol>\n\n\n\n<ol start=\"8\" class=\"wp-block-list\">\n<li>\u56e0\u70ba\u5728\u6c92\u6709\u5916\u6bbc\u7684\u60c5\u6cc1\u4e0b\uff0c\u8033\u64f4\u8f38\u51fa\u5bb9\u6613\u6709\u54fc\u8072\uff0c\u5982\u679c\u914d\u5408\u9285\u67f1\u628a\u96fb\u8def\u677f\u9396\u5728\u4e00\u91d1\u5c6c\u677f\u4e0a\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u54fc\u8072\uff1b\u9084\u6709VR\u5728\u7528\u624b\u8e2b\u89f8\u6642\u4e5f\u6703\u6709\u54fc\u8072\uff0c\u5728\u6c92\u5916\u6bbc\u6642\u53ef\u4ee5\u628a\u5916\u6bbc\u63a5\u5730\uff0c\u65b9\u6cd5\u5c31\u662f\u5f9eVR\u7b2c\u4e00\u8173\u710a\u4e00\u5c0e\u7dda\u8b93VR\u7684\u87ba\u59c6\u9396\u4e0a\u3002<\/li>\n<\/ol>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.34%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/VR-GND.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/AD-GND0.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/AD-GND1.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<ol start=\"9\" class=\"wp-block-list\">\n<li>\u4ee5\u4e0b\u70ba\u96f6\u4ef6\u710a\u63a5\u5f8c\u7684\u5be6\u9ad4\u5716\uff0c\u7d66\u5927\u5bb6\u53c3\u8003:<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"600\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-109.png\" alt=\"\" class=\"wp-image-412\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-109.png 950w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-109-300x189.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-109-768x485.png 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<ol start=\"10\" class=\"wp-block-list\">\n<li>\u5b8c\u6210\u5f8c\u53ef\u4ee5\u5148\u6aa2\u6e2c\u4e00\u4e0b\u5e7e\u500b\u9ede\u7684\u96fb\u58d3,\u5982\u4e0b\u5716\uff1a<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"611\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110-1024x611.png\" alt=\"\" class=\"wp-image-413\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110-1024x611.png 1024w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110-300x179.png 300w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110-768x458.png 768w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110-1536x916.png 1536w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-110.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>*U5:\u96fb\u8def\u677f\u4e0a\u8aa4\u690d\u70ba74HC04\uff0c\u6b63\u78ba\u61c9\u70ba<strong>SN74HC08<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-e58c79a91fe75806609d6feb35e7f3e5\" style=\"color:#ff0000\"><strong>\u904b\u4f5c\u60c5\u5f62:<\/strong><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u9023\u63a5USB\u7dda\u81f3\u958b\u6a5f\u7684\u96fb\u8166\u5f8c,\u5c31\u7b97DAC\u6c92\u958b\u96fb\u6e90LED1\u6703\u4eae\u8d77,\u4ee3\u8868\u9023\u63a5\u81f3\u96fb\u8166USB\u3002<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"301\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-111.png\" alt=\"\" class=\"wp-image-414\" style=\"aspect-ratio:1.3289726418522556;width:258px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-111.png 400w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-111-300x226.png 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u96fb\u6e90\u70ba24V\/1A \u5c08\u7528Switching Power,\u8acb\u55ae\u7368\u4f7f\u7528\uff0c\u7d55\u5c0d\u4e0d\u8981\u8207\u5176\u4ed6\u76f8\u95dc\u8a2d\u5099\uff0c\u6bd4\u5982\u8033\u64f4\uff0c\u5171\u7528\u5206\u63a5\u540c\u4e00\u7d44\u96fb\u6e90\uff0c\u56e0\u70ba\u500bDIY\u4f7f\u7528\u4e86\u865b\u64ec\u5730\u7684\u8a2d\u8a08\uff0c\u5b83\u7684\u5730\u5c0d\u61c9\u96fb\u6e90\u4f9b\u61c9\u5668\u70ba1\/2 VCC,\u4e5f\u5c31\u662f+12V\uff0c\u5982\u679c\u8207\u5176\u4ed6\u8a2d\u5099\u5171\u7528\uff0c\u97f3\u6e90\u76f8\u4e92\u9023\u63a5\u5f8c\uff0c\u5730\u7dda\u4e0d\u540c\u96fb\u58d3\u6c34\u5e73\u6703\u7522\u751f\u77ed\u8def\u7684\u73fe\u8c61\uff01<\/li>\n\n\n\n<li>\u5f8c\u65b9RCA\u5ea7\u70ba\u8f38\u51fa\uff0c\u8acb\u9023\u63a5\u81f3\u4f60\u7684\u64f4\u5927\u6a5f\u3001\u4e3b\u52d5\u5f0f\u5587\u53ed\u6216\u8033\u64f4\u3002<\/li>\n\n\n\n<li>\u6253\u958bDAC\u96fb\u6e90\u5f8cLED2\u6703\u4eae\u8d77\uff0c\u4ee5Windows\u4f5c\u696d\u7cfb\u7d71\u9023\u63a5\u6703\u81ea\u52d5\u8fa6\u8a8d\u4e26\u5b89\u88ddDriver,\u00a0\u4e0d\u9700\u518d\u624b\u52d5\u5b89\u88dd\uff0c\u53ef\u4ee5\u958b\u555f\u63a7\u5236\u7684\u7684\u97f3\u6548\u770b\u770b\u3002<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"371\" height=\"422\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-112.png\" alt=\"\" class=\"wp-image-415\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-112.png 371w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-112-264x300.png 264w\" sizes=\"auto, (max-width: 371px) 100vw, 371px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"356\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-113.png\" alt=\"\" class=\"wp-image-416\" style=\"aspect-ratio:1.820260720712812;width:366px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-113.png 648w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-113-300x165.png 300w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"525\" src=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-114.png\" alt=\"\" class=\"wp-image-417\" style=\"aspect-ratio:0.908568707402006;width:375px;height:auto\" srcset=\"https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-114.png 477w, https:\/\/gccircuit.com\/wordpress\/wp-content\/uploads\/2026\/02\/image-114-273x300.png 273w\" sizes=\"auto, (max-width: 477px) 100vw, 477px\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>\u6b64\u6642\u96fb\u8166\u64ad\u653e\u97f3\u6a02\u5c31\u6703\u7531DAC\u8f38\u51fa\uff0c \u96fb\u8def\u677f\u5167\u5df2\u5167\u5efaRA1\u8033\u64f4\u96fb\u8def\uff0c\u96d6\u975e\u9802\u7d1a\u96fb\u8def\uff0c\u53ef\u4ee5\u7576\u6210\u76e3\u807d\uff0c\u6548\u679c\u7b97\u662f\u4e0d\u932f\uff0c\u76f4\u63a5\u63d2\u4e0a\u4f60\u7684\u8033\u6a5f\uff0c3.5mm\u62166.3mm\u7684\u7acb\u9ad4\u8033\u6a5f\uff0c\u64c7\u4e00\u63d2\u5230\u524d\u65b9\u7684\u63d2\u5ea7\u4e0a\uff0c\u8abf\u6574VR\u5230\u8a66\u7576\u97f3\u91cf\uff0c\u597d\u597d\u4eab\u53d7\u4f60DIY\u7684\u6210\u679c!<\/li>\n\n\n\n<li>RA-1\u8033\u64f4\u96fb\u8def\u7531\u65bc\u4f7f\u7528\u4e86JRC4556\u9019\u500bOP,\u5b83\u7684\u7279\u9ede\u662f\u529f\u7387\u5927\uff0c\u4f46\u4e5f\u4f34\u96a8\u8457\u5c0f\u5c0f\u7684\u7f3a\u61be\uff0c\u5c31\u662f\u6709\u9ede\u80cc\u666f\u5636\u8072\u8f03\u5927\u7684\u60c5\u6cc1\uff0c\u9019\u500b\u554f\u984c\u5728\u7db2\u8def\u4e0a\u662f\u5e38\u898b\u7684\u8a0e\u8ad6\uff0c\u5176\u5be6\u5728\u807d\u97f3\u6a02\u6642\u4e26\u6c92\u4ec0\u9ebc\u5927\u5f71\u97ff\uff0c\u4f46\u5c0d\u5b8c\u7f8e\u4e3b\u7fa9\u8005\u53ef\u80fd\u6703\u5e0c\u671b\u5b83\u80fd\u518d\u6539\u9032\uff0c\u7b2c\u4e00\uff0c\u63db\u5176\u4ed6\u96d9OP\u5982NE5532,OPA2604\u7b49&#8230;..\uff0c\u7b2c\u4e8c\uff0c\u539fRA-1\u5728\u8a31\u591a\u7db2\u8def\u7684\u8a0e\u8ad6\u4e2d\u53ef\u4ee5\u767c\u73fe\u518d\u5c0d\u90a3\u9846464K\u7684\u96fb\u963b\u6709\u722d\u8b70\uff0c\u56e0\u6709\u4eba\u53c8\u5728RA-1\u62c6\u89e3\u6642\u767c\u73fe\u9019\u9846\u963b\u4e5f\u6709\u7528464R\u7684\uff0c\u5927\u5bb6\u53ef\u80fd\u6703\u8aaa\uff0c\u600e\u6703\u5dee\u90a3\u9ebc\u591a? \u8a0e\u8ad6\u4e2d\u662f\u8aaa\u53ef\u80fd\u539f\u5ee0\u70ba\u4e86\u9ad8\u3001\u4f4e\u963b\u6297\u7684\u8033\u6a5f\u800c\u505a\u7684\u8b8a\u5316\uff0c\u4e5f\u56e0\u70ba\u5728\u63db\u6210464R\u6642\uff0cGain\u8b8a\u5c0f\u4e86\uff0c\u6709\u4eba\u5df2\u7d93\u767c\u73fe\u9019\u6a23\u53ef\u4ee5\u964d\u4f4e\u5636\u8072\u7684\u60c5\u6cc1\uff0c\u539f\u4f86\u4f7f\u7528464K\u6642\u7684\u653e\u5927\u500d\u7387G=1+(464K\/121K)=4.83\u500d\uff0c\u63db\u4e86\u4ee5\u5f8c\u96d6\u589e\u76ca\u8b8a\u5c0fG=1+(0.464K\/121K)=1.0\u500d\uff0c\u770b\u8d77\u4f86\u597d\u50cf\u5dee\u597d\u591a\uff0c\u4f46\u5be6\u969b\u4f7f\u7528\u4e0a\u5176\u5be6\u9084\u662f\u53ef\u4ee5\u5f97\u5230\u6211\u5011\u8981\u7684\u97f3\u91cf\u7684, \u4e14&#8221;\u5636&#8221;\u8072\u771f\u8b8a\u5c0f\u4e86!\u9084\u6709\u539f\u4f86\u56e0\u96d9VR\u7684\u96d9\u5c64\u7dda\u6027\u7121\u6cd5\u5b8c\u5168\u76f8\u540c\u800c\u7522\u751f\u7684\u5c0f\u97f3\u91cf\u5de6\u53f3\u4e0d\u5e73\u8861\u7684\u60c5\u6cc1\u4e5f\u8ddf\u8457\u6539\u5584\u4e86\uff0c\u6240\u4ee5\u5982\u6709\u4e00\u6a23\u56f0\u64fe\u7684\u4eba\u53ef\u4ee5\u8ddf\u64da\u6b64\u9ede\u4f86\u6539\u6a5f\u3002<\/li>\n\n\n\n<li>\u64f4\u5145\u6216\u5916\u63a5\u7684DAC\u89e3\u78bc\u677f\uff0c\u62d4\u6389Jumper\u4e0a\u76843\u500b\u8df3\u7dda\u593e\uff0c\u518d\u63d2\u4e0a\u66ff\u63db\u7684DAC\u89e3\u78bc\u677f\uff0c\u6211\u53ea\u7c21\u55ae\u7684\u505a\u4e86\u6e2c\u8a66\u7248\u4e26\u5b8c\u6210\u6e2c\u8a66\uff0c\u52d5\u4f5c\u6b63\u5e38\u3001\u53ef\u884c\uff0c\u76ee\u524d\u9084\u6c92\u6709\u5206\u4eab\u7684\u88fd\u4f5c\uff0c\u5927\u5bb6\u53ef\u4ee5\u81ea\u5df1\u73a9\u73a9\u770b\uff0c<\/li>\n<\/ol>\n\n\n\n<p><strong>\u96f6\u4ef6\u4f9b\u61c9:<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/USBDACV2-PCB-PIC.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/USBDAC-V2\/PARTS-PIC-s.jpg\" alt=\"\" style=\"aspect-ratio:0.8492890995260663;width:377px;height:auto\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/KITs\/TUBE&amp;FET-HPA\/NEW24VPWR.gif\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1.GC-USB DAC V2Plus\u96fb\u8def\u677f $220<\/li>\n\n\n\n<li>2.\u96f6\u4ef6\u5305,\u5982\u4ee5\u4e0a\u7167\u7247(\u96f6\u4ef6\u5982\u96f6\u4ef6\u6e05\u55ae\u6240\u793a,\u542bUSB Cable,\u4e0d\u542b\u9285\u67f1\u53ca\u96fb\u6e90\uff0c\u91cd\u9ede\u4f7f\u7528\u9032\u53e3\u96fb\u5bb9\u53c3\u8003\u96f6\u4ef6\u8868\u5167\u7d05\u5b57\u7684\u5099\u8a3b)\u6bcf\u5957&nbsp; $850.<\/li>\n\n\n\n<li>&nbsp; ***** \u70ba\u611f\u8b1d\u5927\u5bb6\u652f\u6301\uff0c\u9019\u5e7e\u5929\u53c8\u628a\u96f6\u4ef6\u5305\u5167\u7684\u96fb\u89e3\u96fb\u5bb9\u5168\u90e8\u5347\u7d1a\u70ba\u65e5\u7cfb\u96fb\u5bb9\u4e86,\u4e4b\u524d\u8cfc\u8cb7\u7684,\u6211\u4e5f\u90fd\u88dc\u5bc4\u51fa\u53bb\u4e86!<\/li>\n\n\n\n<li>&nbsp;&nbsp;(\u96f6\u4ef6\u5305\u4e2d\u63d0\u4f9b\u7684LED\uff0c\u5176\u4e2d\u4e00\u9846\u77ed\u8173\u6709\u6298\u5f4e\u7684\u70ba\u85cd\u5149LED)<\/li>\n\n\n\n<li>3.\u5c08\u7528DC24V\/1000mA \u4ea4\u63db\u5f0f(Switching)\u96fb\u6e90\u4f9b\u61c9\u5668(\u78c1\u5fc3),(\u5df2\u8a66\u6a5f\u5408\u683c)\u4ee3\u8cfc&nbsp;&nbsp;$280<\/li>\n<\/ol>\n\n\n\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n\n\n\n<p>****** \u6709\u4eba\u5efa\u8b70\u6211\u4ee3\u710a\u90a33\u9846SMD\u5143\u4ef6\uff0c\u5982\u679c\u6709\u6b64\u9700\u6c42\u7684\u4eba\uff0cEmail\u7d66\u6211\u6642\u8acb\u4e00\u4f75\u544a\u77e5\uff0c\u6211\u53ef\u4ee5\u4ee3\u710a\uff0c<strong>\u5de5\u672c\u8cbb30\u5143<\/strong>\uff0c\u4f46\u5bc4\u51fa\u6642\u9593\u53ef\u80fd\u6703\u665a\u500b\u4e00\u5929!<\/p>\n\n\n\n<p>\u904b\u8cbb\u53e6\u5916\u52a0\u7d04&nbsp;$65.<\/p>\n\n\n\n<p class=\"has-contrast-color has-text-color has-link-color wp-elements-7065abfb8d6f65e7683f28df290ddf3a\"><a href=\"mailto:georgeliao886@gmail.com?subject=%E5%B0%8DGC-USB%20DAC%20V2.0%20Plus%E6%9C%89%E8%88%88%E8%B6%A3\">\u5982\u679c\u4f60\u9700\u8981\u4ee5\u4e0a\u96fb\u8def\u677f\u53ca\u96f6\u4ef6\uff0c\u8acbEMAIL\u9023\u7d61:georgeliao886@gmail.com<\/a><\/p>\n\n\n\n<p>\u6a5f\u6bbc\u7684\u90e8\u4efd\u4e5f\u958b\u59cb\u4f9b\u61c9\u4e86\uff0c\u6bcf\u5957\u6a5f\u6bbc\u5957\u4ef6NT$1,150&nbsp;<\/p>\n\n\n\n<p>(\u5168\u90e8\u6a5f\u6bbc\u96f6\u3001\u4e0d\u92b9\u92fc\u87ba\u7d72\uff0c\u6ce1\u68c9\u81a0\u588a\u53ca\u65cb\u9215),\u53ef\u80fd\u6709\u4eba\u767c\u73fe\u50f9\u683c\u6bd4\u771f\u7a7a\u7ba1\u90a3\u500b\u6a5f\u6bbc\u9ad8\u4e86\u4e00\u9ede\uff0c\u539f\u56e0\u5728\u90e8\u4efd\u5de5\u5ee0\u6f32\u50f9\uff0c\u5c24\u5176\u967d\u6975\u8655\u7406\uff0c\u56e0\u70ba\u6240\u6709\u4e0d\u74b0\u4fdd\u7684\u5de5\u5ee0\u90fd\u88ab\u53d6\u7de0\u4e86\uff0c\u6309\u898f\u5b9a\u7684\u5de5\u5e8f\u6210\u672c\u9ad8\u4e86\u8a31\u591a\uff0c\u8acb\u5927\u5bb6\u898b\u8ad2!<\/p>\n\n\n\n<p>\u904b\u8cbb\u5916\u52a0,\u7d04$65<\/p>\n\n\n\n<p>\u5167\u5bb9\u8acb\u53c3\u8003\u5b89\u88dd\u6559\u5b78:<a href=\"https:\/\/gccircuit.com\/MyDocument\/U-DACV2-CASEINSTALL.htm\">USB DAC GC-V2+ \u6a5f\u6bbc\u5b89\u88dd\u6559\u5b78<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gccircuit.com\/MyDocument\/USB_DACV2_CASEINS\/U-DAC-PIC15.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-right has-small-font-size\">George Liao.(2015\/03\/29)<br>\u7248\u6b0a\u6240\u6709\uff0c\u8acb\u52ff\u8f49\u8f09<br>\u55ac\u6cbb\u67e5\u723e\u65af\u96fb\u5b50\u96fb\u8def\u7db2<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6703\u6709\u9019\u6a23\u7684\u69cb\u60f3,&nbsp;\u5df2\u7d93\u4e00\u6bb5\u6642\u9593\u4e86\uff0c\u60f3\u898f\u5283\u4e00\u500bUSB DAC,\u4f7f\u7528PCM2706\u4f86\u7576USB\u7684\u63a5\u6536\u5668\uff0c\u4f46 &#8230; <a title=\"USB DAC GC-V2.0 Plus\u00a0(PCM2706+TDA1543+RA1\u8033\u64f4)\" class=\"read-more\" href=\"https:\/\/gccircuit.com\/wordpress\/2026\/02\/12\/usb-dac-gc-v2-0-plus-pcm2706tda1543ra1%e8%80%b3%e6%93%b4\/\" aria-label=\"Read more about USB DAC GC-V2.0 Plus\u00a0(PCM2706+TDA1543+RA1\u8033\u64f4)\">\u95b1\u8b80\u5168\u6587<\/a><\/p>\n","protected":false},"author":1,"featured_media":400,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-399","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diy-"],"_links":{"self":[{"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/posts\/399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/comments?post=399"}],"version-history":[{"count":1,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/posts\/399\/revisions"}],"predecessor-version":[{"id":418,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/posts\/399\/revisions\/418"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/media\/400"}],"wp:attachment":[{"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/media?parent=399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/categories?post=399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gccircuit.com\/wordpress\/wp-json\/wp\/v2\/tags?post=399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}