{"id":90226,"date":"2026-08-04T20:57:20","date_gmt":"2026-08-04T12:57:20","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/90226.html"},"modified":"2026-08-04T20:57:20","modified_gmt":"2026-08-04T12:57:20","slug":"48mhz%e6%97%b6%e9%92%9f%e4%b8%ba%e4%bd%95%e7%94%a8x1%e6%8e%a2%e5%a4%b4%e6%b5%8b%e4%b8%8d%e5%87%86%ef%bc%9f%e4%b8%80%e6%ac%a1%e7%a4%ba%e6%b3%a2%e5%99%a8%e6%b5%8b%e9%87%8f%e8%b8%a9%e5%9d%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/90226.html","title":{"rendered":"48MHz\u65f6\u949f\u4e3a\u4f55\u7528\u00d71\u63a2\u5934\u6d4b\u4e0d\u51c6\uff1f\u4e00\u6b21\u793a\u6ce2\u5668\u6d4b\u91cf\u8e29\u5751\u590d\u76d8"},"content":{"rendered":"<p>\u5728\u8c03\u8bd5 FPGA \u677f\u5361\u65f6&#xff0c;\u6211\u9047\u5230\u4e86\u4e00\u4e2a\u5f88\u5bb9\u6613\u628a\u4eba\u5e26\u504f\u7684\u73b0\u8c61&#xff1a;\u540c\u4e00\u4e2a 48 MHz \u65f6\u949f\u4fe1\u53f7&#xff0c;\u63a2\u5934\u62e8\u5230 \u00d71 \u548c \u00d710 \u540e&#xff0c;\u793a\u6ce2\u5668\u663e\u793a\u7684\u5e45\u503c\u3001\u6ce2\u5f62\u751a\u81f3\u9891\u7387\u8bfb\u6570\u90fd\u6709\u660e\u663e\u5dee\u522b\u3002<\/p>\n<p>\u7b2c\u4e00\u53cd\u5e94\u662f\u6000\u7591 FPGA \u65f6\u949f\u4e0d\u7a33\u5b9a\u3001PLL \u914d\u7f6e\u6709\u95ee\u9898&#xff0c;\u6216\u8005\u677f\u4e0a\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u51fa\u4e86\u6545\u969c\u3002\u4f46\u771f\u6b63\u7684\u95ee\u9898\u5e76\u4e0d\u4e00\u5b9a\u5728\u7535\u8def&#xff0c;\u800c\u53ef\u80fd\u51fa\u5728\u6d4b\u91cf\u65b9\u5f0f\u672c\u8eab\u3002<\/p>\n<p>\u8fd9\u6b21\u73b0\u8c61\u80cc\u540e\u7684\u5173\u952e\u70b9\u662f&#xff1a;<\/p>\n<p>\u00d71 \u548c \u00d710 \u4e0d\u53ea\u662f\u663e\u793a\u500d\u7387\u4e0d\u540c&#xff0c;\u5b83\u4eec\u7684\u8f93\u5165\u7535\u5bb9\u3001\u6709\u6548\u5e26\u5bbd\u4ee5\u53ca\u5bf9\u88ab\u6d4b\u8282\u70b9\u7684\u8d1f\u8f7d\u90fd\u4e0d\u4e00\u6837\u3002<\/p>\n<p>\u5bf9\u4e8e\u4f4e\u9891\u4fe1\u53f7&#xff0c;\u8fd9\u4e9b\u5dee\u522b\u53ef\u80fd\u4e0d\u660e\u663e&#xff1b;\u5230\u4e86 48 MHz&#xff0c;\u63a2\u5934\u5df2\u7ecf\u6210\u4e3a\u88ab\u6d4b\u7535\u8def\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<h3>\u5148\u8fd8\u539f\u4e00\u4e0b\u95ee\u9898<\/h3>\n<p>\u88ab\u6d4b\u4fe1\u53f7\u662f\u4e00\u6761 48 MHz \u6676\u632f\u8f93\u51fa\u4fe1\u53f7&#xff0c;\u5b9e\u9645\u6d4b\u91cf\u65f6\u51fa\u73b0\u4e86\u7c7b\u4f3c\u73b0\u8c61&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528 \u00d71 \u6863&#xff0c;\u6ce2\u5f62\u5e45\u503c\u504f\u4f4e&#xff0c;\u6d4b\u91cf\u4e0d\u7a33\u5b9a&#xff0c;\u751a\u81f3\u672c\u8be5\u662fDC\u4ea4\u6d41\u7684\u8f93\u51fa&#xff0c;\u6d4b\u51fa\u6765\u5c45\u7136\u5e26\u4e86\u76f4\u6d41\u504f\u7f6e\u91cf<\/li>\n<li>\u5207\u5230 \u00d710 \u6863\u540e&#xff0c;\u6ce2\u5f62\u5374\u660e\u663e\u6b63\u5e38<br \/>\n\u5982\u679c\u53ea\u628a \u00d71 \u548c \u00d710 \u7406\u89e3\u6210\u201c\u7535\u538b\u663e\u793a\u4e58\u6570\u201d&#xff0c;\u8fd9\u4e2a\u73b0\u8c61\u786e\u5b9e\u5f88\u96be\u89e3\u91ca\u3002<\/li>\n<\/ul>\n<h3>\u00d71\u548c\u00d710&#xff0c;\u5230\u5e95\u6539\u53d8\u4e86\u4ec0\u4e48<\/h3>\n<p>\u666e\u901a\u65e0\u6e90\u63a2\u5934\u63a5\u5230\u7535\u8def\u4e0a\u540e&#xff0c;\u76f8\u5f53\u4e8e\u5728\u6d4b\u91cf\u70b9\u4e0e\u5730\u4e4b\u95f4\u5e76\u8054\u4e86\u4e00\u4e2a\u9891\u7387\u76f8\u5173\u7684\u963b\u6297\u3002<\/p>\n<p>\u7b80\u5316\u6765\u770b&#xff1a;<\/p>\n<p>\u88ab\u6d4b\u8282\u70b9 \u2500\u2500\u2500\u252c\u2500\u2500 \u63a2\u5934\u8f93\u5165\u7535\u963b<br \/>\n           \u2514\u2500\u2500 \u63a2\u5934\u8f93\u5165\u7535\u5bb9<\/p>\n<p>\u4e0d\u540c\u63a2\u5934\u53c2\u6570\u4f1a\u6709\u5dee\u5f02&#xff0c;\u5e38\u89c1\u65e0\u6e90\u63a2\u5934\u5927\u81f4\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>\u53c2\u6570\u00d71\u6863\u00d710\u6863<\/tr>\n<tbody>\n<tr>\n<td>\u8870\u51cf\u6bd4<\/td>\n<td align=\"right\">1:1<\/td>\n<td align=\"right\">10:1<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u8f93\u5165\u7535\u963b<\/td>\n<td align=\"right\">\u7ea6 1 M\u03a9<\/td>\n<td align=\"right\">\u7ea6 10 M\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u8f93\u5165\u7535\u5bb9<\/td>\n<td align=\"right\">\u7ea6 80&#xff5e;150 pF<\/td>\n<td align=\"right\">\u7ea6 8&#xff5e;15 pF<\/td>\n<\/tr>\n<tr>\n<td>\u5e38\u89c1\u5e26\u5bbd<\/td>\n<td align=\"right\">\u7ea6 5&#xff5e;15 MHz<\/td>\n<td align=\"right\">\u7ea6 100&#xff5e;500 MHz<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u9ad8\u901f\u8282\u70b9\u7684\u8d1f\u8f7d<\/td>\n<td align=\"right\">\u8f83\u91cd<\/td>\n<td align=\"right\">\u8f83\u8f7b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f4e\u9891\u6d4b\u91cf\u65f6&#xff0c;\u6211\u4eec\u5f88\u5bb9\u6613\u53ea\u5173\u6ce8 1 M\u03a9 \u548c 10 M\u03a9\u3002\u5230\u4e86\u51e0\u5341 MHz&#xff0c;\u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662f\u8f93\u5165\u7535\u5bb9\u548c\u63a2\u5934\u5e26\u5bbd\u3002<\/p>\n<p>\u4e00\u53e5\u8bdd\u6982\u62ec&#xff1a;<\/p>\n<p>\u00d71&#xff1a;\u7535\u5bb9\u5927\u3001\u5e26\u5bbd\u4f4e<br \/>\n\u00d710&#xff1a;\u7535\u5bb9\u5c0f\u3001\u5e26\u5bbd\u9ad8<\/p>\n<h3>48MHz\u5230\u5e95\u6709\u591a\u5feb<\/h3>\n<p>48 MHz \u4fe1\u53f7\u4e00\u4e2a\u5b8c\u6574\u5468\u671f\u53ea\u6709\u7ea6 20.8 ns&#xff0c;\u534a\u5468\u671f\u7ea6 10.4 ns\u3002<\/p>\n<p>\u8fd9\u610f\u5473\u7740&#xff0c;\u6d4b\u91cf\u7cfb\u7edf\u53ea\u8981\u5f15\u5165\u51e0 ns \u5230\u51e0\u5341 ns \u7684\u54cd\u5e94\u5ef6\u8fdf&#xff0c;\u5c31\u8db3\u4ee5\u663e\u8457\u6539\u53d8\u6ce2\u5f62\u3002<\/p>\n<h3>\u8f93\u5165\u7535\u5bb9\u572848MHz\u4e0b\u6709\u591a\u5927\u5f71\u54cd<\/h3>\n<p>\u7535\u5bb9\u963b\u6297\u7684\u5e45\u503c\u4e3a&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u2223XC\u2223&#061;12\u03c0fC<br \/>\n|X_C|&#061;\\\\frac{1}{2\\\\pi fC}<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2223<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">X<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0785em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\">\u2223<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.2019em;vertical-align: -0.8804em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8804em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u5047\u8bbe \u00d71 \u6863\u603b\u8f93\u5165\u7535\u5bb9\u4e3a 100 pF&#xff0c;\u5728 48 MHz \u4e0b&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u2223XC\u2223&#061;12\u03c0\u00d748\u00d7106\u00d7100\u00d710\u221212\u224833.2\u00a0\u03a9<br \/>\n|X_C|<br \/>\n&#061;\\\\frac{1}{2\\\\pi\\\\times48\\\\times10^6\\\\times100\\\\times10^{-12}}<br \/>\n\\\\approx33.2\\\\ \\\\Omega<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2223<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">X<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0785em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\">\u2223<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0908em;vertical-align: -0.7693em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">48<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">6<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">100<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">\u2212<\/span><span class=\"mord mtight\">12<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7693em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord\">33.2<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord\">\u03a9<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u5047\u8bbe \u00d710 \u6863\u8f93\u5165\u7535\u5bb9\u4e3a 12 pF&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u2223XC\u2223&#061;12\u03c0\u00d748\u00d7106\u00d712\u00d710\u221212\u2248276\u00a0\u03a9<br \/>\n|X_C|<br \/>\n&#061;\\\\frac{1}{2\\\\pi\\\\times48\\\\times10^6\\\\times12\\\\times10^{-12}}<br \/>\n\\\\approx276\\\\ \\\\Omega<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2223<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">X<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0785em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">C<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\">\u2223<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0908em;vertical-align: -0.7693em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">48<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">6<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">12<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">\u2212<\/span><span class=\"mord mtight\">12<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7693em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord\">276<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord\">\u03a9<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u5bf9\u6bd4\u4e00\u4e0b&#xff1a;<\/p>\n<p>\u00d71\u6863&#xff0c;100 pF&#xff1a;\u5bb9\u6297\u5e45\u503c\u7ea6 33 \u03a9<br \/>\n\u00d710\u6863&#xff0c;12 pF&#xff1a;\u5bb9\u6297\u5e45\u503c\u7ea6 276 \u03a9<\/p>\n<p>\u8fd9\u53ea\u662f\u7528\u4e8e\u5efa\u7acb\u76f4\u89c9\u7684\u7b80\u5316\u8ba1\u7b97\u3002\u771f\u5b9e\u63a2\u5934\u8fd8\u5305\u542b\u8865\u507f\u7f51\u7edc\u3001\u7535\u7f06\u548c\u5bc4\u751f\u53c2\u6570&#xff0c;\u51c6\u786e\u963b\u6297\u5e94\u67e5\u770b\u63a2\u5934\u6570\u636e\u624b\u518c\u7ed9\u51fa\u7684\u9891\u7387\u54cd\u5e94\u6216\u963b\u6297\u66f2\u7ebf\u3002<\/p>\n<p>\u4f46\u5b83\u5df2\u7ecf\u8db3\u4ee5\u8bf4\u660e\u95ee\u9898&#xff1a;48 MHz \u4e0b&#xff0c;\u00d71 \u6863\u4e0d\u80fd\u518d\u7b80\u5355\u770b\u6210\u4e00\u4e2a\u201c1 M\u03a9 \u9ad8\u963b\u8f93\u5165\u201d\u3002\u5b83\u7684\u5927\u8f93\u5165\u7535\u5bb9\u4f1a\u7ed9\u4fe1\u53f7\u6e90\u5e26\u6765\u5f88\u91cd\u7684\u9ad8\u9891\u8d1f\u8f7d\u3002<\/p>\n<p>\u5982\u679c\u88ab\u6d4b\u8f93\u51fa\u7684\u7b49\u6548\u6e90\u963b\u6297\u662f\u51e0\u5341\u6b27\u59c6&#xff0c;\u5c31\u53ef\u80fd\u51fa\u73b0&#xff1a;<\/p>\n<ul>\n<li>\u4fe1\u53f7\u5e45\u503c\u4e0b\u964d<\/li>\n<li>\u4e0a\u5347\u6cbf\u548c\u4e0b\u964d\u6cbf\u53d8\u6162<\/li>\n<li>\u65b9\u6ce2\u8fb9\u6cbf\u53d8\u5706<\/li>\n<li>\u8fc7\u51b2\u3001\u632f\u94c3\u53d1\u751f\u53d8\u5316<\/li>\n<li>\u9ad8\u963b\u6297\u632f\u8361\u8282\u70b9\u7684\u5de5\u4f5c\u72b6\u6001\u88ab\u6539\u53d8<\/li>\n<\/ul>\n<p>\u6709\u65f6\u5e76\u4e0d\u662f\u793a\u6ce2\u5668\u201c\u663e\u793a\u9519\u4e86\u201d&#xff0c;\u800c\u662f\u63a2\u5934\u63a5\u4e0a\u53bb\u4ee5\u540e&#xff0c;\u7535\u8def\u672c\u8eab\u5df2\u7ecf\u53d8\u4e86\u3002<\/p>\n<h3>\u00d71\u6863\u7684\u53e6\u4e00\u4e2a\u95ee\u9898&#xff1a;\u5e26\u5bbd\u901a\u5e38\u4e0d\u591f<\/h3>\n<p>\u666e\u901a\u65e0\u6e90\u63a2\u5934\u7684 \u00d71 \u6863\u5e26\u5bbd\u5f80\u5f80\u53ea\u6709 5&#xff5e;15 MHz\u3002\u5047\u8bbe\u5e26\u5bbd\u662f 10 MHz&#xff0c;\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u8fd1\u4f3c\u5173\u7cfb\u4f30\u7b97\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u5347\u65f6\u95f4&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">tr\u22480.35BW<br \/>\nt_r\\\\approx\\\\frac{0.35}{BW}<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.7651em;vertical-align: -0.15em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">t<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.1514em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0278em\">r<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0074em;vertical-align: -0.686em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0502em\">B<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1389em\">W<\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">0.35<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.686em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u4ee3\u5165 10 MHz&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">tr\u22480.3510\u00d7106&#061;35\u00a0ns<br \/>\nt_r\\\\approx\\\\frac{0.35}{10\\\\times10^6}<br \/>\n&#061;35\\\\text{ ns}<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.7651em;vertical-align: -0.15em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">t<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.1514em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0278em\">r<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0908em;vertical-align: -0.7693em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">10<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">6<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">0.35<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7693em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6444em\"><\/span><span class=\"mord\">35<\/span><span class=\"mord text\"><span class=\"mord\">\u00a0ns<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u4f46 48 MHz \u4fe1\u53f7\u7684\u6574\u4e2a\u5468\u671f\u53ea\u6709 20.8 ns\u3002<\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u00d71 \u6863\u6d4b\u91cf\u7cfb\u7edf\u81ea\u5df1\u7684\u4e0a\u5347\u65f6\u95f4\u6bd4\u4e00\u4e2a\u4fe1\u53f7\u5468\u671f\u8fd8\u957f&#xff0c;\u5b83\u4e0d\u53ef\u80fd\u6b63\u786e\u8fd8\u539f 48 MHz \u65b9\u6ce2\u3002<\/p>\n<p>\u7ed3\u679c\u901a\u5e38\u662f&#xff1a;<\/p>\n<p>\u771f\u5b9e\u4fe1\u53f7&#xff1a;48 MHz\u65b9\u6ce2<br \/>\n\u5c4f\u5e55\u663e\u793a&#xff1a;\u5e45\u5ea6\u8f83\u4f4e\u7684\u5706\u6ed1\u6ce2\u5f62\u3001\u8fd1\u4f3c\u6b63\u5f26\u6ce2\u6216\u4e0d\u7a33\u5b9a\u6ce2\u5f62<\/p>\n<p>\u5982\u679c \u00d710 \u6863\u5e26\u5bbd\u4e3a 100 MHz&#xff0c;\u5bf9\u5e94\u4e0a\u5347\u65f6\u95f4\u7ea6\u4e3a&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">tr\u22483.5\u00a0ns<br \/>\nt_r\\\\approx3.5\\\\text{ ns}<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.7651em;vertical-align: -0.15em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\">t<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.1514em\"><span class=\"\" style=\"top: -2.55em;margin-left: 0em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0278em\">r<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6444em\"><\/span><span class=\"mord\">3.5<\/span><span class=\"mord text\"><span class=\"mord\">\u00a0ns<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u867d\u7136\u5b83\u4ecd\u672a\u5fc5\u80fd\u5b8c\u6574\u8fd8\u539f\u975e\u5e38\u9661\u7684\u8fb9\u6cbf&#xff0c;\u4f46\u5df2\u7ecf\u6bd4 10 MHz \u7684 \u00d71 \u6863\u53ef\u9760\u5f97\u591a\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u540c\u9891\u65b9\u6ce2\u6bd4\u6b63\u5f26\u6ce2\u66f4\u96be\u6d4b<\/h3>\n<p>48 MHz \u6b63\u5f26\u6ce2\u4e3b\u8981\u5305\u542b 48 MHz \u57fa\u6ce2&#xff1b;48 MHz \u65b9\u6ce2\u8fd8\u5305\u542b\u5927\u91cf\u5947\u6b21\u8c10\u6ce2&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">48,\u00a0144,\u00a0240,\u00a0336\u00a0MHz,\u2026<br \/>\n48,\\\\ 144,\\\\ 240,\\\\ 336\\\\text{ MHz},\\\\dots<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8778em;vertical-align: -0.1944em\"><\/span><span class=\"mord\">48<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\">144<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\">240<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"mord\">336<\/span><span class=\"mord text\"><span class=\"mord\">\u00a0MHz<\/span><\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right: 0.1667em\"><\/span><span class=\"minner\">\u2026<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u8fd9\u4e9b\u9ad8\u6b21\u8c10\u6ce2\u5171\u540c\u5f62\u6210\u65b9\u6ce2\u7684\u9661\u5ced\u8fb9\u6cbf\u548c\u5e73\u5766\u9876\u90e8\u3002<\/p>\n<p>\u5f53\u63a2\u5934\u6216\u793a\u6ce2\u5668\u5e26\u5bbd\u4e0d\u8db3\u65f6&#xff0c;\u9ad8\u6b21\u8c10\u6ce2\u4f1a\u88ab\u9010\u6e10\u6ee4\u6389&#xff0c;\u6700\u540e\u7559\u4e0b\u7684\u6ce2\u5f62\u8d8a\u6765\u8d8a\u63a5\u8fd1\u6b63\u5f26\u3002<\/p>\n<p>\u5c4f\u5e55\u4e0a\u770b\u5230\u8fd1\u4f3c\u6b63\u5f26\u6ce2&#xff0c;\u4e0d\u4ee3\u8868\u7535\u8def\u4e00\u5b9a\u8f93\u51fa\u6b63\u5f26\u6ce2&#xff0c;\u4e5f\u53ef\u80fd\u662f\u6d4b\u91cf\u7cfb\u7edf\u53ea\u4fdd\u7559\u4e86\u57fa\u6ce2\u3002<\/p>\n<p>\u5982\u679c\u53ea\u60f3\u786e\u8ba4\u201c\u6709\u6ca1\u6709 48 MHz\u201d&#xff0c;\u7cfb\u7edf\u5e26\u5bbd\u8986\u76d6\u57fa\u6ce2\u53ef\u80fd\u5df2\u7ecf\u591f\u7528&#xff1b;\u5982\u679c\u8fd8\u60f3\u89c2\u5bdf\u8fb9\u6cbf\u3001\u8fc7\u51b2\u548c\u632f\u94c3&#xff0c;\u901a\u5e38\u9700\u8981\u8986\u76d6\u4e09\u6b21\u751a\u81f3\u4e94\u6b21\u8c10\u6ce2&#xff0c;\u4e5f\u5c31\u662f\u5927\u7ea6 150&#xff5e;250 MHz \u7684\u6d4b\u91cf\u5e26\u5bbd\u3002<\/p>\n<h3>\u4e0d\u80fd\u53ea\u770b\u793a\u6ce2\u5668\u6807\u79f0\u5e26\u5bbd<\/h3>\n<p>\u5b8c\u6574\u6d4b\u91cf\u94fe\u8def\u7531\u793a\u6ce2\u5668\u548c\u63a2\u5934\u5171\u540c\u7ec4\u6210\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>\u793a\u6ce2\u5668&#xff1a;100 MHz<br \/>\n\u00d71\u63a2\u5934&#xff1a;10 MHz<\/p>\n<p>\u7cfb\u7edf\u603b\u5e26\u5bbd\u7ea6\u4e3a 9.95 MHz\u3002100 MHz \u793a\u6ce2\u5668\u5e76\u4e0d\u80fd\u8865\u6551 10 MHz \u63a2\u5934\u7684\u9650\u5236\u3002<\/p>\n<p>\u5982\u679c\u793a\u6ce2\u5668\u548c \u00d710 \u63a2\u5934\u90fd\u662f 100 MHz&#xff0c;\u7cfb\u7edf\u603b\u5e26\u5bbd\u4e5f\u53ea\u6709\u7ea6 70.7 MHz\u3002\u8fd9\u8db3\u4ee5\u5e2e\u52a9\u786e\u8ba4 48 MHz \u57fa\u6ce2\u548c\u57fa\u672c\u5f62\u72b6&#xff0c;\u4f46\u4ecd\u4e0d\u9002\u5408\u51c6\u786e\u8bc4\u4ef7\u5f88\u5feb\u7684\u8fb9\u6cbf\u3002<\/p>\n<p>\u91c7\u6837\u7387\u4e5f\u662f\u540c\u6837\u7684\u9053\u7406&#xff1a;\u66f4\u9ad8\u91c7\u6837\u7387\u80fd\u63d0\u4f9b\u66f4\u591a\u91c7\u6837\u70b9&#xff0c;\u5374\u4e0d\u80fd\u5f25\u8865\u6a21\u62df\u524d\u7aef\u5e26\u5bbd\u4e0d\u8db3\u3002<\/p>\n<h3>\u957f\u63a5\u5730\u7ebf\u4f1a\u5236\u9020\u53e6\u4e00\u4e2a\u5047\u8c61<\/h3>\n<p>\u666e\u901a\u63a2\u5934\u4e0a\u7684\u957f\u9cc4\u9c7c\u5939\u5730\u7ebf&#xff0c;\u5728\u51e0\u5341 MHz \u4e0b\u5df2\u7ecf\u4e0d\u662f\u7406\u60f3\u5bfc\u7ebf&#xff0c;\u800c\u662f\u4e00\u6bb5\u660e\u663e\u7684\u7535\u611f\u3002<\/p>\n<p>\u7535\u611f\u963b\u6297\u4e3a&#xff1a;<br \/>\n<span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u2223XL\u2223&#061;2\u03c0fL<br \/>\n|X_L|&#061;2\\\\pi fL<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2223<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">X<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0785em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">L<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\">\u2223<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"mord mathnormal\">L<\/span><\/span><\/span><\/span><\/span><\/span><br \/>\n\u5047\u8bbe\u957f\u5730\u7ebf\u7684\u7b49\u6548\u7535\u611f\u7ea6\u4e3a 100 nH&#xff0c;\u5728 48 MHz \u4e0b&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">\u2223XL\u2223&#061;2\u03c0\u00d748\u00d7106\u00d7100\u00d710\u22129\u224830\u00a0\u03a9<br \/>\n|X_L|<br \/>\n&#061;2\\\\pi\\\\times48\\\\times10^6\\\\times100\\\\times10^{-9}<br \/>\n\\\\approx30\\\\ \\\\Omega<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2223<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">X<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.0785em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">L<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mord\">\u2223<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.7278em;vertical-align: -0.0833em\"><\/span><span class=\"mord\">2<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0359em\">\u03c0<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.7278em;vertical-align: -0.0833em\"><\/span><span class=\"mord\">48<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.9474em;vertical-align: -0.0833em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8641em\"><span class=\"\" style=\"top: -3.113em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">6<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.7278em;vertical-align: -0.0833em\"><\/span><span class=\"mord\">100<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u00d7<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.8641em\"><\/span><span class=\"mord\">1<\/span><span class=\"mord\"><span class=\"mord\">0<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.8641em\"><span class=\"\" style=\"top: -3.113em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">\u2212<\/span><span class=\"mord mtight\">9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">\u2248<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord\">30<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord\">\u03a9<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u5730\u7ebf\u7535\u611f\u518d\u548c\u63a2\u5934\u8f93\u5165\u7535\u5bb9\u7ec4\u5408&#xff0c;\u5c31\u53ef\u80fd\u5f62\u6210\u8c10\u632f\u7f51\u7edc&#xff0c;\u5e26\u6765&#xff1a;<\/p>\n<ul>\n<li>\u5047\u632f\u94c3<\/li>\n<li>\u5047\u8fc7\u51b2<\/li>\n<li>\u5e45\u503c\u504f\u5dee<\/li>\n<li>\u8fb9\u6cbf\u9644\u8fd1\u7684\u9ad8\u9891\u6bdb\u523a<\/li>\n<\/ul>\n<p>\u8fd9\u7c7b\u6ce2\u5f62\u5f88\u5bb9\u6613\u88ab\u8bef\u5224\u4e3a PCB \u963b\u6297\u4e0d\u8fde\u7eed\u6216\u8005 FPGA \u9a71\u52a8\u8fc7\u5f3a\u3002<\/p>\n<p>\u6d4b\u91cf 48 MHz \u65f6&#xff0c;\u66f4\u5408\u9002\u7684\u63a5\u5730\u65b9\u5f0f\u662f&#xff1a;<\/p>\n<p>\u5730\u5f39\u7c27<br \/>\n\u77ed\u63a5\u5730\u7247<br \/>\n\u540c\u8f74\u6d4b\u8bd5\u70b9<br \/>\n\u4fe1\u53f7\u9644\u8fd1\u7684\u5c31\u8fd1\u5730<\/p>\n<p>\u6838\u5fc3\u539f\u5219\u53ea\u6709\u4e00\u4e2a&#xff1a;\u63a2\u5934\u5c16\u7aef\u548c\u63a5\u5730\u70b9\u56f4\u6210\u7684\u56de\u8def\u9762\u79ef\u8d8a\u5c0f\u8d8a\u597d\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u81ea\u52a8\u9891\u7387\u8bfb\u6570\u4e5f\u4f1a\u9519<\/h3>\n<p>\u6ce2\u5f62\u53d8\u5706\u4e0d\u4e00\u5b9a\u7acb\u523b\u5bfc\u81f4\u9891\u7387\u9519\u8bef\u3002\u53ea\u8981\u4fe1\u53f7\u8fd8\u80fd\u7a33\u5b9a\u8de8\u8fc7\u89e6\u53d1\u9608\u503c&#xff0c;\u793a\u6ce2\u5668\u4ecd\u6709\u673a\u4f1a\u6b63\u786e\u8ba1\u7b97\u5468\u671f\u3002<\/p>\n<p>\u4f46 \u00d71 \u6863\u7684\u91cd\u8d1f\u8f7d\u3001\u4f4e\u5e26\u5bbd\u548c\u957f\u5730\u7ebf\u53ef\u80fd\u540c\u65f6\u5e26\u6765&#xff1a;<\/p>\n<ul>\n<li>\u5e45\u503c\u592a\u4f4e&#xff0c;\u89e6\u53d1\u9608\u503c\u96be\u4ee5\u7a33\u5b9a\u8de8\u8d8a<\/li>\n<li>\u8fb9\u6cbf\u53d8\u6210\u7f13\u6162\u659c\u5761&#xff0c;\u566a\u58f0\u5bfc\u81f4\u591a\u6b21\u8fc7\u9608\u503c<\/li>\n<li>\u632f\u94c3\u88ab\u8bc6\u522b\u4e3a\u989d\u5916\u8fb9\u6cbf<\/li>\n<li>\u63a2\u5934\u6539\u53d8\u632f\u8361\u5668\u6216\u9ad8\u963b\u8282\u70b9\u7684\u771f\u5b9e\u9891\u7387<\/li>\n<\/ul>\n<p>\u793a\u6ce2\u5668\u7684\u81ea\u52a8\u9891\u7387\u3001\u5468\u671f\u548c\u5360\u7a7a\u6bd4\u6d4b\u91cf\u901a\u5e38\u4f9d\u8d56\u9608\u503c\u4ea4\u53c9\u70b9\u3002\u6ce2\u5f62\u8d28\u91cf\u4e00\u65e6\u53d8\u5dee&#xff0c;\u81ea\u52a8\u6d4b\u91cf\u7ed3\u679c\u4e5f\u53ef\u80fd\u8ddf\u7740\u8df3\u52a8\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u9762\u5bf9\u5f02\u5e38\u8bfb\u6570\u65f6&#xff0c;\u4e0d\u8981\u53ea\u770b\u5c4f\u5e55\u53f3\u4e0b\u89d2\u7684\u81ea\u52a8\u6d4b\u91cf\u503c&#xff0c;\u8fd8\u8981\u68c0\u67e5\u89e6\u53d1\u662f\u5426\u7a33\u5b9a\u3001\u6ce2\u5f62\u662f\u5426\u5355\u8c03\u8de8\u8d8a\u9608\u503c\u3002<\/p>\n<h3>\u6211\u6700\u540e\u91c7\u7528\u768448MHz\u6d4b\u91cf\u914d\u7f6e<\/h3>\n<p>\u5bf9\u4e8e\u666e\u901a FPGA \u5355\u7aef\u65f6\u949f\u6216 GPIO \u8f93\u51fa&#xff0c;\u53ef\u4ee5\u5148\u91c7\u7528\u4e0b\u9762\u8fd9\u5957\u914d\u7f6e&#xff1a;<\/p>\n<p>\u63a2\u5934\u6863\u4f4d&#xff1a;\u00d710<br \/>\n\u793a\u6ce2\u5668\u901a\u9053\u500d\u7387&#xff1a;10X<br \/>\n\u901a\u9053\u8026\u5408&#xff1a;DC<br \/>\n\u8f93\u5165\u963b\u6297&#xff1a;1 M\u03a9<br \/>\n20 MHz\u5e26\u5bbd\u9650\u5236&#xff1a;\u5173\u95ed<br \/>\n\u63a5\u5730\u65b9\u5f0f&#xff1a;\u5730\u5f39\u7c27\u6216\u6781\u77ed\u5730\u7ebf<br \/>\n\u89e6\u53d1\u7c7b\u578b&#xff1a;Edge<br \/>\n\u89e6\u53d1\u7535\u5e73&#xff1a;\u4fe1\u53f7\u5e45\u503c\u4e2d\u95f4\u4f4d\u7f6e<\/p>\n<p>\u65f6\u57fa\u53ef\u4ee5\u5148\u4ece 5 ns\/div\u300110 ns\/div \u6216 20 ns\/div \u5f00\u59cb&#xff0c;\u6839\u636e\u9700\u8981\u89c2\u5bdf 1&#xff5e;10 \u4e2a\u5468\u671f\u3002<\/p>\n<p>\u91c7\u6837\u7387\u65b9\u9762&#xff0c;\u51e0\u767e MSa\/s \u53ef\u4ee5\u7528\u4e8e\u786e\u8ba4\u9891\u7387&#xff1b;\u82e5\u8981\u89c2\u5bdf\u8fb9\u6cbf\u548c\u632f\u94c3&#xff0c;\u66f4\u5e0c\u671b\u8fbe\u5230 1 GSa\/s \u6216\u66f4\u9ad8\u3002\u540c\u65f6\u8fd8\u8981\u4fdd\u8bc1\u63a2\u5934\u548c\u6a21\u62df\u524d\u7aef\u5e26\u5bbd\u8db3\u591f\u3002<\/p>\n<h4>\u00d710\u63a2\u5934\u4f7f\u7528\u524d\u5148\u8865\u507f<\/h4>\n<p>\u00d710 \u63a2\u5934\u5185\u90e8\u662f\u7535\u963b\u3001\u7535\u5bb9\u5171\u540c\u6784\u6210\u7684\u8865\u507f\u5206\u538b\u7f51\u7edc\u3002\u8865\u507f\u4e0d\u6b63\u786e\u65f6&#xff0c;\u65b9\u6ce2\u540c\u6837\u4f1a\u5931\u771f&#xff1a;<\/p>\n<ul>\n<li>\u6b20\u8865\u507f&#xff1a;\u8fb9\u6cbf\u53d1\u5706&#xff0c;\u5e73\u53f0\u7f13\u6162\u53d8\u5316<\/li>\n<li>\u8fc7\u8865\u507f&#xff1a;\u8fb9\u6cbf\u51fa\u73b0\u660e\u663e\u5c16\u5cf0<\/li>\n<li>\u8865\u507f\u6b63\u786e&#xff1a;\u5e73\u53f0\u8f83\u5e73&#xff0c;\u8fb9\u6cbf\u65e0\u5f02\u5e38\u5c16\u5cf0<\/li>\n<\/ul>\n<p>\u57fa\u672c\u6b65\u9aa4\u5982\u4e0b&#xff1a;<\/p>\n<li>\u63a2\u5934\u62e8\u5230 \u00d710\u3002<\/li>\n<li>\u793a\u6ce2\u5668\u901a\u9053\u8bbe\u7f6e\u4e3a 10X\u3002<\/li>\n<li>\u8fde\u63a5\u793a\u6ce2\u5668\u81ea\u5e26\u7684\u6821\u51c6\u65b9\u6ce2\u3002<\/li>\n<li>\u8c03\u8282\u63a2\u5934\u8865\u507f\u87ba\u4e1d&#xff0c;\u76f4\u5230\u65b9\u6ce2\u5e73\u53f0\u548c\u8fb9\u6cbf\u5408\u7406\u3002<\/li>\n<p>1 kHz \u6821\u51c6\u65b9\u6ce2\u53ea\u80fd\u6821\u51c6\u8865\u507f\u5173\u7cfb&#xff0c;\u5e76\u4e0d\u80fd\u8bc1\u660e\u63a2\u5934\u5728 48 MHz \u4e0b\u7684\u5e26\u5bbd\u548c\u63a5\u5730\u65b9\u5f0f\u4e00\u5b9a\u5408\u683c\u3002<\/p>\n<h3>\u4e00\u5957\u53ef\u4ee5\u76f4\u63a5\u7167\u505a\u7684\u6392\u67e5\u987a\u5e8f<\/h3>\n<p>\u5f53 \u00d71 \u548c \u00d710 \u7684\u7ed3\u679c\u5dee\u5f02\u5f88\u5927\u65f6&#xff0c;\u53ef\u4ee5\u6309\u4e0b\u9762\u987a\u5e8f\u68c0\u67e5\u3002<\/p>\n<h4>1. \u67e5\u63a2\u5934\u53c2\u6570<\/h4>\n<p>\u4e0d\u8981\u53ea\u770b\u5916\u58f3\u4e0a\u7684\u201c100 MHz\u201d\u3002\u786e\u8ba4\u8bf4\u660e\u4e66\u5206\u522b\u6807\u6ce8\u7684 \u00d71\/\u00d710 \u5e26\u5bbd\u3001\u8f93\u5165\u7535\u5bb9\u548c\u6700\u5927\u8f93\u5165\u7535\u538b\u3002<\/p>\n<h4>2. \u6821\u51c6\u00d710\u8865\u507f<\/h4>\n<p>\u5148\u7528\u6821\u51c6\u65b9\u6ce2\u628a\u63a2\u5934\u8c03\u6b63\u786e&#xff0c;\u518d\u6d4b\u76ee\u6807\u4fe1\u53f7\u3002<\/p>\n<h4>3. \u6838\u5bf9\u901a\u9053\u500d\u7387<\/h4>\n<p>\u7269\u7406\u63a2\u5934\u62e8\u5230 \u00d710 \u540e&#xff0c;\u793a\u6ce2\u5668\u901a\u9053\u4e5f\u5fc5\u987b\u8bbe\u7f6e\u4e3a 10X&#xff0c;\u5426\u5219\u7535\u538b\u663e\u793a\u4f1a\u76f8\u5dee 10 \u500d\u3002<\/p>\n<h4>4. \u5173\u95ed20MHz\u9650\u5e26<\/h4>\n<p>\u6d4b\u91cf 48 MHz \u65f6&#xff0c;\u5982\u679c\u901a\u9053\u4ecd\u5f00\u542f 20 MHz Bandwidth Limit&#xff0c;\u4fe1\u53f7\u4f1a\u88ab\u660e\u663e\u8870\u51cf\u3002<\/p>\n<h4>5. \u6362\u6210\u5730\u5f39\u7c27<\/h4>\n<p>\u5148\u6392\u9664\u957f\u5730\u7ebf\u5236\u9020\u7684\u5047\u632f\u94c3&#xff0c;\u518d\u8ba8\u8bba PCB \u4fe1\u53f7\u5b8c\u6574\u6027\u3002<\/p>\n<h4>6. \u6362\u4e00\u4e2a\u4f4e\u963b\u6297\u6d4b\u91cf\u70b9<\/h4>\n<p>\u4e0d\u5efa\u8bae\u76f4\u63a5\u7528\u666e\u901a\u65e0\u6e90\u63a2\u5934\u6d4b\u6676\u632f\u53cd\u9988\u811a\u3001PLL \u73af\u8def\u8282\u70b9\u7b49\u9ad8\u963b\u6297\u654f\u611f\u4f4d\u7f6e\u3002<\/p>\n<p>\u4f18\u5148\u9009\u62e9&#xff1a;<\/p>\n<ul>\n<li>\u65f6\u949f\u7f13\u51b2\u5668\u8f93\u51fa<\/li>\n<li>FPGA \u4e13\u95e8\u5f15\u51fa\u7684\u6d4b\u8bd5 GPIO<\/li>\n<li>PCB \u9884\u7559\u6d4b\u8bd5\u70b9<\/li>\n<li>\u6709\u660e\u786e\u9a71\u52a8\u80fd\u529b\u7684\u4f4e\u963b\u6297\u8282\u70b9<\/li>\n<\/ul>\n<h4>7. \u68c0\u67e5\u6574\u6761\u6d4b\u91cf\u94fe\u8def<\/h4>\n<p>\u786e\u8ba4\u793a\u6ce2\u5668\u5e26\u5bbd\u3001\u63a2\u5934\u5e26\u5bbd\u3001\u91c7\u6837\u7387\u3001\u89e6\u53d1\u8bbe\u7f6e\u548c\u6d4b\u91cf\u70b9\u90fd\u6ee1\u8db3\u9700\u6c42&#xff0c;\u800c\u4e0d\u662f\u53ea\u770b\u5176\u4e2d\u4e00\u4e2a\u53c2\u6570\u3002<\/p>\n<h3>\u54ea\u4e9b\u573a\u666f\u4e0d\u80fd\u53ea\u9760\u666e\u901a\u00d710\u63a2\u5934<\/h3>\n<p>\u00d710 \u65e0\u6e90\u63a2\u5934\u662f\u6570\u5b57\u677f\u8c03\u8bd5\u7684\u5e38\u7528\u8d77\u70b9&#xff0c;\u4f46\u4e0d\u662f\u4e07\u80fd\u5de5\u5177\u3002<\/p>\n<table>\n<tr>\u6d4b\u91cf\u5bf9\u8c61\u66f4\u5408\u9002\u7684\u65b9\u6cd5<\/tr>\n<tbody>\n<tr>\n<td>\u6676\u632f\u53cd\u9988\u8282\u70b9\u3001\u9ad8\u963b\u6297\u5c04\u9891\u8282\u70b9<\/td>\n<td>\u4f4e\u8f93\u5165\u7535\u5bb9\u6709\u6e90\u63a2\u5934<\/td>\n<\/tr>\n<tr>\n<td>LVDS\u3001MIPI\u3001PCIe\u7b49\u5dee\u5206\u4fe1\u53f7<\/td>\n<td>\u5dee\u5206\u63a2\u5934\u6216\u4e13\u7528\u6d4b\u8bd5\u5939\u5177<\/td>\n<\/tr>\n<tr>\n<td>\u660e\u786e\u8bbe\u8ba1\u4e3a50 \u03a9\u7684\u5c04\u9891\u8f93\u51fa<\/td>\n<td>\u540c\u8f74\u7ebf\u52a050 \u03a9\u7ec8\u7aef<\/td>\n<\/tr>\n<tr>\n<td>100 MHz\u4ee5\u4e0a\u4e14\u9700\u8981\u770b\u771f\u5b9e\u8fb9\u6cbf<\/td>\n<td>\u66f4\u9ad8\u5e26\u5bbd\u65e0\u6e90\u63a2\u5934\u6216\u6709\u6e90\u63a2\u5934<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u666e\u901a FPGA CMOS \u8f93\u51fa\u4e0d\u80fd\u968f\u610f\u63a5\u5230\u793a\u6ce2\u5668 50 \u03a9 \u8f93\u5165\u3002<\/p>\n<p>\u4f8b\u5982 3.3 V \u76f4\u63a5\u52a0\u5230 50 \u03a9 \u8d1f\u8f7d\u4e0a&#xff0c;\u7406\u60f3\u8ba1\u7b97\u7535\u6d41\u4e3a&#xff1a;<\/p>\n<p><span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\">I&#061;3.350&#061;66mA<br \/>\nI&#061;\\\\frac{3.3}{50}&#061;66\\\\text{mA}<br \/>\n<\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0785em\">I<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0074em;vertical-align: -0.686em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3214em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">50<\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\">3.3<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.686em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord\">66<\/span><span class=\"mord text\"><span class=\"mord\">mA<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>\u8fd9\u53ef\u80fd\u8d85\u8fc7 FPGA IO \u7684\u9a71\u52a8\u80fd\u529b\u3002\u4f7f\u7528 50 \u03a9 \u7ec8\u7aef\u524d&#xff0c;\u5fc5\u987b\u786e\u8ba4\u4fe1\u53f7\u6e90\u5c31\u662f\u6309 50 \u03a9 \u7cfb\u7edf\u8bbe\u8ba1\u7684&#xff0c;\u6216\u8005\u5df2\u7ecf\u914d\u7f6e\u4e86\u5408\u9002\u7684\u4e32\u8054\u7ec8\u7aef\u548c\u7535\u538b\u5e45\u503c\u3002<\/p>\n<p>\u666e\u901a\u53f0\u5f0f\u793a\u6ce2\u5668\u63a2\u5934\u7684\u5730\u5939\u901a\u5e38\u8fd8\u4e0e\u4fdd\u62a4\u5730\u76f8\u8fde&#xff0c;\u4e0d\u80fd\u968f\u610f\u5939\u5230\u975e\u5730\u8282\u70b9&#xff0c;\u5426\u5219\u53ef\u80fd\u9020\u6210\u77ed\u8def\u6216\u635f\u574f\u8bbe\u5907\u3002<\/p>\n<h3>\u00d71\u548c\u00d710\u5feb\u901f\u9009\u62e9\u8868<\/h3>\n<table>\n<tr>\u88ab\u6d4b\u4fe1\u53f7\u63a8\u8350\u6863\u4f4d\u6216\u63a2\u5934\u539f\u56e0<\/tr>\n<tbody>\n<tr>\n<td>\u7535\u6c60\u3001\u4f4e\u9891\u7535\u6e90\u7eb9\u6ce2<\/td>\n<td>\u00d71\u6216\u00d710<\/td>\n<td>\u6839\u636e\u5e45\u503c\u548c\u5206\u8fa8\u7387\u9009\u62e9<\/td>\n<\/tr>\n<tr>\n<td>\u4f4e\u9891\u3001\u5c0f\u5e45\u4f20\u611f\u5668\u4fe1\u53f7<\/td>\n<td>\u00d71\u53ef\u7528<\/td>\n<td>\u9700\u786e\u8ba4\u4fe1\u53f7\u6e90\u963b\u6297\u4e0d\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u4f4e\u901fGPIO<\/td>\n<td>\u00d710\u4f18\u5148<\/td>\n<td>\u5bf9\u8282\u70b9\u8d1f\u8f7d\u66f4\u5c0f<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u767ekHz\u5230\u6570MHz PWM<\/td>\n<td>\u00d710<\/td>\n<td>\u66f4\u9002\u5408\u89c2\u5bdf\u8fb9\u6cbf<\/td>\n<\/tr>\n<tr>\n<td>10&#xff5e;50 MHz SPI<\/td>\n<td>\u00d710<\/td>\n<td>\u00d71\u901a\u5e38\u5e26\u5bbd\u4e0d\u8db3<\/td>\n<\/tr>\n<tr>\n<td>48 MHz FPGA\u65f6\u949f<\/td>\n<td>\u00d710\u52a0\u5730\u5f39\u7c27<\/td>\n<td>\u51cf\u5c0f\u7535\u5bb9\u548c\u63a5\u5730\u7535\u611f<\/td>\n<\/tr>\n<tr>\n<td>100 MHz\u4ee5\u4e0a\u5355\u7aef\u4fe1\u53f7<\/td>\n<td>\u9ad8\u5e26\u5bbd\u00d710\u6216\u6709\u6e90\u63a2\u5934<\/td>\n<td>\u666e\u901a\u63a2\u5934\u53ef\u80fd\u65e0\u6cd5\u8fd8\u539f\u8fb9\u6cbf<\/td>\n<\/tr>\n<tr>\n<td>\u9ad8\u901f\u5dee\u5206\u4fe1\u53f7<\/td>\n<td>\u5dee\u5206\u63a2\u5934<\/td>\n<td>\u4e0d\u80fd\u7528\u666e\u901a\u5355\u7aef\u63a2\u5934\u8de8\u63a5<\/td>\n<\/tr>\n<tr>\n<td>\u6676\u632f\u53cd\u9988\u8282\u70b9<\/td>\n<td>\u4f4e\u7535\u5bb9\u6709\u6e90\u63a2\u5934<\/td>\n<td>\u907f\u514d\u63a2\u5934\u5bfc\u81f4\u9891\u504f\u6216\u505c\u632f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5bf9\u6570\u5b57\u7535\u8def\u6765\u8bf4&#xff0c;\u9664\u4e86\u5f88\u5c0f\u3001\u5f88\u4f4e\u9891\u7684\u4fe1\u53f7&#xff0c;\u9ed8\u8ba4\u5148\u7528 \u00d710 \u901a\u5e38\u66f4\u7a33\u59a5\u3002<\/p>\n<h3>\u56de\u5230\u8fd9\u6b2148MHz\u6d4b\u91cf<\/h3>\n<p>\u628a\u5173\u952e\u6570\u636e\u653e\u5728\u4e00\u8d77\u770b&#xff0c;\u95ee\u9898\u5c31\u5f88\u76f4\u89c2\u4e86&#xff1a;<\/p>\n<p>48 MHz\u5468\u671f&#xff1a;\u7ea620.8 ns<br \/>\n\u00d71\u6863100 pF\u5bb9\u6297\u5e45\u503c&#xff1a;\u7ea633 \u03a9<br \/>\n\u00d710\u686312 pF\u5bb9\u6297\u5e45\u503c&#xff1a;\u7ea6276 \u03a9<br \/>\n10 MHz\u5e26\u5bbd\u5bf9\u5e94\u4e0a\u5347\u65f6\u95f4&#xff1a;\u7ea635 ns<br \/>\n100 MHz\u5e26\u5bbd\u5bf9\u5e94\u4e0a\u5347\u65f6\u95f4&#xff1a;\u7ea63.5 ns<br \/>\n100 nH\u5730\u7ebf\u572848 MHz\u4e0b\u611f\u6297\u5e45\u503c&#xff1a;\u7ea630 \u03a9<\/p>\n<p>\u00d71 \u6863\u540c\u65f6\u9762\u4e34&#xff1a;<\/p>\n<p>\u8f93\u5165\u7535\u5bb9\u5927<br \/>\n&#043; \u5e26\u5bbd\u4e0d\u8db3<br \/>\n&#043; \u957f\u5730\u7ebf\u7535\u611f<br \/>\n&#043; \u89e6\u53d1\u8d28\u91cf\u4e0b\u964d<br \/>\n&#061; \u6ce2\u5f62\u548c\u9891\u7387\u8bfb\u6570\u4e0d\u53ef\u4fe1<\/p>\n<p>\u5207\u6362\u5230\u6b63\u786e\u8865\u507f\u7684 \u00d710 \u63a2\u5934&#xff0c;\u518d\u914d\u5408\u5730\u5f39\u7c27\u3001\u5173\u95ed 20 MHz 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