{"id":4772,"date":"2020-02-19T17:51:47","date_gmt":"2020-02-19T08:51:47","guid":{"rendered":"http:\/\/aval-global.com\/?p=4772"},"modified":"2020-03-24T19:59:39","modified_gmt":"2020-03-24T10:59:39","slug":"%e9%80%89%e6%8b%a9%e9%ab%98%e9%80%9f%e9%ab%98%e6%80%a7%e8%83%bddigitizer%e6%95%b0%e6%8d%ae%e9%87%87%e9%9b%86%e5%8d%a1%e7%9a%84%e5%85%b3%e9%94%ae%e5%9b%a0%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/aval-global.com\/?p=4772&lang=zh","title":{"rendered":"\u9009\u62e9\u9ad8\u901f,\u9ad8\u6027\u80fdDigitizer(\u6570\u636e\u91c7\u96c6\u5361)\u7684\u5173\u952e\u56e0\u7d20"},"content":{"rendered":"<p>\u5728\u673a\u5668\u89c6\u89c9\u884c\u4e1a\u4e2d\uff0c\u6211\u60f3\u4ecb\u7ecd\u4e00\u4e2a\u770b\u4f3c\u5947\u602a\u7684\u6a21\u62dfI \/ O\u63a5\u53e3\u677f\u3002\u901a\u5e38\uff0c\u6d4b\u91cf\u6e29\u5ea6\uff0c\u538b\u529b\uff0c\u6d41\u91cf\uff0c\u632f\u52a8\u7b49\u7684\u4f20\u611f\u5668\u5f88\u5bb9\u6613\u5728\u5468\u56f4\u73af\u5883\u4e2d\u4f7f\u7528\uff0c\u8f93\u51fa\u6a21\u62df\u4fe1\u53f7\uff0c\u5e76\u4e14\u7528\u4e8e\u63a7\u5236\u7684\u6267\u884c\u5668\u5927\u591a\u4f7f\u7528\u6a21\u62df\u4fe1\u53f7\u8fdb\u884c\u64cd\u4f5c\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u5728\u7528\u4e8e\u6d4b\u91cf\u548c\u68c0\u67e5\u7684PC\u4e2d\u5904\u7406\u6a21\u62df\u4fe1\u53f7\uff0c\u9700\u8981\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\u7684\u63a5\u53e3\u677f\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\u4f7f\u7528\u7684\u65e5\u672c\u7684AVALDATA\u7684\u9ad8\u901f\uff0c\u9ad8\u6027\u80fd\u6570\u5b57\u5316\u4eea\u677f\uff0c\u5e76\u8ba8\u8bba\u4e86\u9009\u62e9\u6570\u5b57\u5316\u4eea\u677f\u7684\u91cd\u8981\u56e0\u7d20\u3002<br \/>\nAVALDATA\u7684\u9ad8\u901f\u6a21\u62df\u677f\uff08Express Converter\uff09\u7cfb\u5217\u4e13\u4e3a\u8981\u6c42\u91c7\u6837\u7387\u572820Msps\u81f31Gsps\u8303\u56f4\u5185\u7684\u6d4b\u91cf\uff0c\u6d4b\u8bd5\u548c\u901a\u4fe1\u8bbe\u5907\u800c\u8bbe\u8ba1\u3002 \u8fd9\u6837\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u9ad8\u901fADC(Analog to Digital Conversion) \u8bbe\u5907\u548cAVALDATA\u7684PCI Express IP Core\u6280\u672f\u7ed3\u5408\u8d77\u6765\u8ba9\u6570\u636e\u4f20\u8f93\u5230PC\uff0c\u800c\u4e0d\u4f1a\u4e22\u5931\u6570\u636e\u3002\u4e00\u4e9b\u578b\u53f7\u5411\u5ba2\u6237\u5f00\u653e\u4e86\u677f\u8f7dFPGA\u7684\u4e00\u90e8\u5206\uff0c\u4ece\u800c\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u5b9a\u5236\u4ee5\u6ee1\u8db3\u4ed6\u4eec\u7684\u9700\u6c42\u3002<\/p>\n<h3><strong>1. \u793a\u6ce2\u5668\u4e0eDigitizer\u677f<\/strong><\/h3>\n<p>\u9996\u5148\uff0c\u4e3a\u5e2e\u52a9\u90a3\u4e9b\u521a\u63a5\u89e6Digitizer\u677f\u7684\u4eba\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u793a\u6ce2\u5668\u7684\u7279\u6027\uff0c\u4f18\u70b9\u548c\u7f3a\u70b9\uff0c\u793a\u6ce2\u5668\u5e7f\u6cdb\u7528\u4e8e\u5de5\u4e1a\u6d4b\u91cf\u3002<\/p>\n<div id=\"attachment_4724\" style=\"width: 210px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4724\" class=\"wp-image-4724 size-200\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-200x150.jpg\" alt=\"\" width=\"200\" height=\"150\" srcset=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-200x150.jpg 200w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-300x225.jpg 300w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-400x300.jpg 400w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-600x450.jpg 600w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-768x576.jpg 768w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp-800x600.jpg 800w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/oslsp.jpg 823w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><p id=\"caption-attachment-4724\" class=\"wp-caption-text\">\u56fe\u72471. \u793a\u6ce2\u5668<\/p><\/div>\n<div id=\"attachment_4725\" style=\"width: 210px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4725\" class=\"wp-image-4725 size-200\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/adb-200x147.png\" alt=\"\" width=\"200\" height=\"147\" srcset=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/adb-200x147.png 200w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/adb-300x221.png 300w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/adb.png 400w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><p id=\"caption-attachment-4725\" class=\"wp-caption-text\">\u56fe\u72472. \u6570\u636e\u91c7\u96c6\u5361<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u793a\u6ce2\u5668\u4e3b\u8981\u7528\u4e8e\u5bf9\u7535\u5b50\u7535\u8def\u8fdb\u884c\u6545\u969c\u6392\u9664\uff0c\u6700\u8fd1\uff0c\u9ad8\u901f\u7535\u5b50\u7535\u8def\u63d0\u4f9b\u4e86\u91c7\u6837\u7387\u8d85\u8fc7100 Gsps\u7684\u9ad8\u901f\u6a21\u578b\u3002 \u5206\u8fa8\u7387\u5927\u591a\u6570\u4e3a8\u4f4d\uff0c\u7528\u4e8e\u68c0\u67e5\u95ee\u9898\u65f6\u5e8f\u7684\u6ce2\u5f62\u4fe1\u606f\uff0c\u4f46\u7531\u4e8e\u6ca1\u6709\u5916\u90e8\u63a5\u53e3\uff0c\u56e0\u6b64\u4e0d\u9002\u5408\u4f20\u8f93\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u4e0a\u56fe\u72472\u662fAVALDATA\u7684PCI Express\u7c7b\u578b\uff0c\u53ef\u4ee5\u5b89\u88c5\u5728PC\u4e0a\u3002 \u5c3d\u7ba1\u91c7\u6837\u7387\u7ea6\u4e3a20M\u301c1Gsps\uff0c\u4f46\u5b83\u5177\u670912\u301c16bit\u7684\u9ad8\u5206\u8fa8\u7387\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8SNR\u7684\u4fe1\u53f7\u5206\u6790\u3002 \u53e6\u5916\uff0c\u7531\u4e8e\u5177\u6709\u9ad8\u901f\u63a5\u53e3\uff0c\u56e0\u6b64\u53ef\u4ee5\u5c06\u6570\u636e\u8fde\u7eed\u5730\u4f20\u8f93\u5230\u5916\u90e8\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u68c0\u67e5\u88c5\u7f6e\uff0c\u6d4b\u91cf\u88c5\u7f6e\uff0c\u56fe\u50cf\u5206\u6790\u88c5\u7f6e\u7b49\u8bb8\u591a\u9886\u57df\u4e2d\u4f7f\u7528\u3002<\/p>\n<table style=\"border-collapse: collapse; width: 61.8564%; height: 240px;\" border=\"1\">\n<tbody>\n<tr style=\"background-color: #0261bf;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\"><strong><span style=\"color: #ffffff;\">\u533a\u5206<\/span><\/strong><\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u00a0<span style=\"color: #ffffff;\">\u793a\u6ce2\u5668<\/span><\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\"><strong><span style=\"color: #ffffff;\">\u6570\u636e\u91c7\u96c6\u5361<\/span><\/strong><\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u91c7\u6837\u7387<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">20MSps ~ 100GSps \u4ee5\u4e0a<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">20MSps ~ 3.6GSps<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u5206\u8fa8\u7387<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">8bit(or 12bit)<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">12~16bit<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u9891\u9053\u6570<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">2~4Ch<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">2~4Ch<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u8f93\u5165\u963b\u5c3c<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">50\u03a9\/1M\u03a9\/10M\u03a9<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">50\u03a9\/1M\u03a9<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u8f93\u5165\u8303\u56f4<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u53ef\u53d8<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">\u56fa\u5b9a (\u4e5f\u6709\u53ef\u53d8\u66f4\u7684\u7248\u672c)<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">Probe<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u6709<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">\u6ca1\u6709<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u6570\u636e\u4f20\u9001\u901f\u5ea6<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u4f4e\u901f<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">\u9ad8\u901f<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">\u5b9a\u5236<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u4e0d\u53ef\u4ee5<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">\u53ef\u4ee5<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 11.3609%; text-align: center; height: 24px;\">S\/W<\/td>\n<td style=\"width: 25.2142%; text-align: center; height: 24px;\">\u6807\u51c6\u8f6f\u4ef6\u548c\u9009\u9879<\/td>\n<td style=\"width: 25.3982%; text-align: center; height: 24px;\">\u4e3a\u4f7f\u7528\u8005\u5e94\u7528\u91cf\u8eab\u5b9a\u505a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong><br \/>\n2. \u6570\u636e\u91c7\u96c6\u5361\u9009\u62e9\u6807\u51c6<\/strong><\/h3>\n<p>\u6839\u636e\u91c7\u6837\u7387\u548c\u4fe1\u53f7\u5e26\u5bbd\u9009\u62e9Digitizer\u677f\u65f6\uff0c\u4fe1\u53f7\u5e26\u5bbd\u5373Digitizer\u677f\u53ef\u4ee5\u8f93\u5165\u7684\u9891\u7387\u8303\u56f4\u5c06\u6210\u4e3a\u786e\u5b9a\u91c7\u6837\u7387\u7684\u91cd\u8981\u70b9\u3002 \u9009\u62e9\u677f\u3002 \u4e0b\u9762\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u91c7\u6837\u7387\u548c\u4fe1\u53f7\u5e26\u5bbd\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<p><span style=\"text-decoration: underline;\"><strong><u>\u91c7\u6837\u7387<\/u> Rate : 200MSps<\/strong><\/span><\/p>\n<div id=\"attachment_4773\" style=\"width: 810px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4773\" class=\"size-800 wp-image-4773\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-800x700.jpg\" alt=\"\" width=\"800\" height=\"700\" srcset=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-200x175.jpg 200w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-300x263.jpg 300w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-400x350.jpg 400w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-600x525.jpg 600w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-768x672.jpg 768w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn-800x700.jpg 800w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/sampling_cn.jpg 916w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-4773\" class=\"wp-caption-text\">\u56fe\u72473. \u4ece\u8f93\u5165\u4fe1\u53f7\u91c7\u6837\u7684\u6ce2\u5f62<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u4e9b\u56fe\u662f\u901a\u8fc7\u4f7f\u7528AVALDATA\u7684\u6570\u5b57\u5316\u4eea\u677f\u4ee5200Msps\u91c7\u6837\u7387\u91c7\u68375\u4e2a\u4e0d\u540c\u7684\u8f93\u5165\u4fe1\u53f7\uff0810MHz\uff0c50MHz\uff0c100MHz\uff0c150MHz\uff0c190MHz\uff09\u800c\u83b7\u5f97\u7684\u6ce2\u5f62\u3002\u800c\u4e14Digitizer\u677f\u7684\u4fe1\u53f7\u5e26\u5bbd\u8bbe\u7f6e\u4e3aDC~200MHz\u3002\u8f93\u5165\u4fe1\u53f7\u4e3a\u91c7\u6837\u7387\u76841\/20\u7684 Case1:10MHz\u548c190MHz\u663e\u793a\u51fa\u8f83\u9ad8\u7684\u4fe1\u53f7\u91cd\u73b0\u6027\uff0c\u5e76\u4e14\u53ef\u4ee5\u4ece\u89c6\u89c9\u4e0a\u770b\u5230\u4fe1\u53f7\u7684\u5e45\u5ea6\u3002\u8fd9\u4e24\u79cd\u8f93\u5165\u4fe1\u53f7\u7684\u6ce2\u957f\u662f\u4e00\u81f4\u7684\u3002\u5728\u5bf9\u5e94\u4e8e1\/4\u7684Case2\uff0850MHz\uff09\u548c\u5bf9\u5e94\u4e8e1\/2\u7684Case3\uff08100MHz\uff09\u4e2d\uff0c\u4fe1\u53f7\u518d\u73b0\u6027\u8f83\u4f4e\uff0c\u5e76\u4e14\u5f88\u96be\u76f4\u89c2\u5730\u68c0\u67e5\u539f\u59cb\u4fe1\u53f7\u7684\u72b6\u6001\u3002 \u6b64\u5916\uff0c\u5c06\u4fe1\u53f7\u901f\u5ea6\u63d0\u9ad8\u5230150MHz\u5b8c\u5168\u53ef\u4ee5\u6d88\u9664\u4fe1\u53f7\u7684\u5e45\u5ea6\uff0c\u8fd9\u7c7b\u4f3c\u4e8e\u5bf950MHz\u4fe1\u53f7\u8fdb\u884c\u91c7\u6837\u3002<\/p>\n<h3><strong>3. \u5feb\u901f\u5085\u7acb\u53f6\u53d8\u6362(Fast Fourier Transform)<\/strong><\/h3>\n<p>\u5728\u4ee5\u524d\u7684\u6d4b\u8bd5\u4e2d\uff0c150MHz\u548c50MHz\uff0c190MHz\u548c10MHz\u663e\u793a\u4e86\u76f8\u540c\u7684\u7ed3\u679c\uff0c\u4f46\u662f\u5982\u679c\u8fd0\u884c\u5feb\u901f\u5085\u7acb\u53f6\u53d8\u6362\uff0c\u5219\u53ef\u4ee5\u66f4\u8be6\u7ec6\u5730\u4e86\u89e3\u8fd9\u79cd\u73b0\u8c61\u3002\u5728200MHz\u7684\u91c7\u6837\u7387\u4e0b\uff0c\u5c06\u8f93\u5165\u4fe1\u53f7\u8bbe\u7f6e\u4e3a190MHz\u4f1a\u5bfc\u81f4\u6700\u521d\u768410MHz\u70b9\u4e0a\u6700\u521d\u4e0d\u5b58\u5728\u7684\u9891\u7387\u3002\u901a\u8fc7\u5c06\u91c7\u6837\u9891\u7387\u90e8\u5206\u5411\u5185\u6298\u53e0\u4e00\u534a\uff0c\u5c06\u91c7\u6837\u9891\u7387\u5411\u5185\u548c\u5411\u5916\u6298\u53e0\u6765\u590d\u5236\u8fd9\u79cd\u5173\u7cfb\u3002\u8fd9\u79cd\u590d\u5236\u5728\u903b\u8f91\u4e0a\u6cbf\u9ad8\u9891\u65b9\u5411\u7ee7\u7eed\uff0c\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a\u6df7\u53e0(Aliasing)\u73b0\u8c61\u3002<\/p>\n<div id=\"attachment_4774\" style=\"width: 810px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4774\" class=\"size-800 wp-image-4774\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/GRAPH-EN-1-800x600.jpg\" alt=\"\" width=\"800\" height=\"600\" \/><p id=\"caption-attachment-4774\" class=\"wp-caption-text\">\u56fe\u7247 4. FFT \u5206\u6790<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><\/h3>\n<h3><\/h3>\n<h3><\/h3>\n<h3><\/h3>\n<h3><\/h3>\n<h3><strong>4. Digitizer\u677f\u7684\u5173\u952e\u6027\u80fd (APX-5360G3, 1.8GSps, 12bit \u6807\u51c6)<\/strong><\/h3>\n<p>AVALDATA\u7684Digitizer\u677fAPX-5360\u7684\u89c4\u683c\u5305\u62ec\u4e00\u4e2a\u4f4e\u901a\u6ee4\u6ce2\u5668(Low pass filter)\uff0c\u8be5\u6ee4\u6ce2\u5668\u5728900Mhz\u65f6\u8870\u51cf-3dB\uff08\u7ea630\uff05\uff09\uff0c\u91c7\u6837\u7387\u4e3a1.8Gsps\uff0c50\uff05\u4e3a1.8Gsps\u3002\u5176\u4ed6\u516c\u53f8\u7684Digitizer\u677f\u8fd8\u914d\u5907\u4e86\u4f4e\u901a\u6ee4\u6ce2\u5668\u6216\u5e26\u901a\u6ee4\u6ce2\u5668(Band pass filter)\uff0c\u4ee5\u51cf\u5f31\u6df7\u53e0\uff0c\u9632\u6b62\u6df7\u53e0\u7684\u6ee4\u6ce2\u5668\u4e5f\u79f0\u4e3a\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668(Anti-aliasing filter)\u3002<\/p>\n<p><strong>\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668(Anti-aliasing Filter) ?\u00a0<\/strong><br \/>\n\u7531\u4e8e\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668\u7684\u622a\u6b62\u9891\u7387\u53d6\u51b3\u4e8eDigitizer\u677f\u7684\u5236\u9020\u5546\uff0c\u56e0\u6b64\u6709\u5fc5\u8981\u9009\u62e9\u5bbd\u5e26Digitizer\u677f\u800c\u4e0d\u662f\u8981\u6d4b\u91cf\u7684\u4fe1\u53f7\u7684\u9891\u7387\u3002 \u5bf9\u4e8eAVALDATA\u7684\u6570\u5b57\u5316\u4eea\u677f\uff0c\u9632\u6df7\u53e0\u6ee4\u6ce2\u5668\u7684\u622a\u6b62\u9891\u7387-3dB\u88ab\u8bbe\u7f6e\u4e3a\u9002\u7528\u4e8e\u5e7f\u6cdb\u5ba2\u6237\u7684\u6bcf\u4e2a\u6570\u5b57\u5316\u4eea\u677f\u7684\u5948\u594e\u65af\u7279\u9891\u7387(Nyquist frequency)\u3002<\/p>\n<div id=\"attachment_4775\" style=\"width: 810px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4775\" class=\"size-800 wp-image-4775\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-800x321.jpg\" alt=\"\" width=\"800\" height=\"321\" srcset=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-200x80.jpg 200w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-300x120.jpg 300w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-400x160.jpg 400w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-600x240.jpg 600w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-768x308.jpg 768w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-800x321.jpg 800w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn-1024x410.jpg 1024w, https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/table-5360-cn.jpg 1193w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-4775\" class=\"wp-caption-text\">\u8868 1. APX-5360\u4ea7\u54c1\u7684\u89c4\u683c<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><strong>5. Digitizer\u677f\u4e0a\u7684\u566a\u58f0\u6027\u80fd\u6307\u6807<\/strong><\/h3>\n<p>\u6570\u5b57\u5316\u4eea\u677f\u566a\u58f0\u6709\u56db\u4e2a\u6027\u80fd\u6307\u6807\uff1a\u9996\u5148\uff0c\u65e0\u6742\u6563\u52a8\u6001\u8303\u56f4\uff08SFDR\uff09\u662f\u6307\u8f93\u5165\u4fe1\u53f7\u4e0e\u4e0b\u4e00\u4e2a\u6700\u9ad8\u9891\u7387\u7684\u6bd4\u7387\uff0c\u8fd8\u5305\u62ec\u7531\u4e8e\u8f93\u5165\u4fe1\u53f7\u5f15\u8d77\u7684\u9ad8\u9891\u5206\u91cf\u3002\u6709\u6548\u4f4d\u6570\uff08ENOB\uff09\u662f\u6307\u793a\u6709\u6548\u4f4d\u6570\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528SINAD\u8ba1\u7b97ENOB\u3002<\/p>\n<ol>\n<li>SNR(Signal to Noise Ratio)\u662f\u8f93\u5165\u4fe1\u53f7\u4e0e\u5176\u4ed6\u9891\u7387\u5206\u91cf\u7684\u6bd4\u503c\u3002\u9ad8\u9891\u6210\u5206\u88ab\u6392\u9664\u5728\u566a\u58f0\u4e4b\u5916\u3002\u7406\u60f3\u7684\u6b63\u5f26\u6ce2\u4f1a\u4ea7\u751f\u4e00\u4e2a\u9ad8\u9891\u5206\u91cf\uff0c\u4f46\u662f\u5982\u679c\u4fe1\u53f7\u5177\u6709\u4efb\u4f55\u975e\u7ebf\u6027\uff0c\u5219\u4f1a\u5206\u89e3\u4e3a\u91cd\u590d\u9891\u7387\u548c\u9ad8\u9891\u5206\u91cf\u3002\u9ad8\u9891\u88ab\u6392\u9664\u5728\u566a\u58f0\u5206\u91cf\u4e4b\u5916\uff0c\u56e0\u4e3a\u5b83\u88ab\u8ba4\u4e3a\u662f\u8f93\u5165\u4fe1\u53f7\u672c\u8eab\u7684\u539f\u56e0\u3002<\/li>\n<li>SINAD(Signal to Noise And Distortion Ratio\uff09\u662f\u5bf9\u5305\u62ec\u9ad8\u9891\u548c\u5176\u4ed6\u9891\u7387\u5206\u91cf\u7684\u8f93\u5165\u4fe1\u53f7\u4e4b\u6bd4\u7684\u8ba1\u7b97\uff0c\u5e76\u4e14\u59cb\u7ec8\u4f4e\u4e8eSNR\u3002<\/li>\n<li>SFDR(Spurious Free Dynamic Range)\u662f\u6307\u8f93\u5165\u4fe1\u53f7\u4e0e\u4e0b\u4e00\u4e2a\u6700\u9ad8\u9891\u7387\u7684\u6bd4\u7387\uff0c\u8fd8\u5305\u62ec\u7531\u4e8e\u8f93\u5165\u4fe1\u53f7\u5f15\u8d77\u7684\u9ad8\u9891\u5206\u91cf\u3002<\/li>\n<li>ENOB(Effective number of bits)\u662f\u6307\u793a\u6709\u6548\u4f4d\u6570\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528SINAD\u8ba1\u7b97ENOB\u3002<br \/>\n<table style=\"border-collapse: collapse; width: 0%;\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\">ENOB = (SINAD &#8211; 1.76) \/ 6.02<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n<p>\u6839\u636e\u88681\u4e2d\u5217\u51fa\u7684\u89c4\u683c\uff0cAPX-5360\u7684\u5206\u8fa8\u7387\u4e3a12\u4f4d\uff0cSNR\u4e3a56.3 dB\u3002<br \/>\n\u5047\u8bbe\u8f93\u5165\u4fe1\u53f7\u7684\u503c\u4e3a1\uff0c\u5219\u566a\u58f0\u5206\u91cf\u7684\u603b\u91cf\u7ea6\u4e3a0.001531\u3002<\/p>\n<p><strong><br \/>\n6. \u5206\u8fa8\u7387\u548cSNR<\/strong><\/p>\n<p>\ubd84\u9ad8\u5206\u8fa8\u7387\u6570\u5b57\u8f6c\u6362\u5668\u677f\u53ef\u7528\u4e8e\u5b9e\u73b0\u9ad8SNR\u3002 \u5982\u679c\u8981\u6d4b\u91cf\u7684\u4fe1\u53f7\u5e45\u5ea6\u8f83\u5927\uff0c\u5219\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u662f\uff0c\u5982\u679c\u60a8\u6d4b\u91cf\u7684\u6570\u5b57\u4fe1\u53f7\u6bd4\u6570\u5b57\u5316\u4eea\u677f\u7684\u6ee1\u91cf\u7a0b\u5c0f\u7ea6-40dB\uff08\u7ea61\uff05\uff09\uff0c\u5373\u4f7fDigitizer\u677f\u5728\u6ee1\u91cf\u7a0b\u8f93\u5165\u4e0b\u7684\u6027\u80fd\u4e3a-70dB\uff0cSNR\u4e5f\u4e0d\u4f1a\u53d7\u5230\u5f71\u54cd\u3002 -30dB\u7684\u8f93\u5165\u4fe1\u53f7\u3002 \u901a\u5e38\uff0c\u4f17\u6240\u5468\u77e5\uff0c\u5f53\u4fe1\u53f7\u7535\u5e73\u4e0d\u9ad8\u4e8e\u566a\u58f0\u65f6\uff0c\u4fe1\u53f7\u7535\u5e73\u4e0d\u9ad8\u4e8e5\u301c6dB\u5f88\u96be\u5224\u65ad\uff0c\u56e0\u6b64\uff0c\u8981\u6d4b\u91cf\u7684\u4fe1\u53f7\u7535\u5e73\u8d8a\u5c0f\uff0cSNR\u9ad8\u7684Digitizer\u677f\u7684\u9891\u7387\u5206\u6790\u8d8a\u597d\u3002<\/p>\n<div>\n<p>\u9891\u8c31\u5f3a\u5ea6\u4ee5dB\u4e3a\u5355\u4f4d\u8868\u793a\u3002 \u5728\u6570\u5b57\u8f6c\u6362\u5668\u677f\u4e0a\uff0c\u8be5\u503c\u8868\u793a\u4e0e\u8f93\u5165\u4fe1\u53f7\u76f8\u6bd4\u7684\u566a\u58f0\u91cf\uff0c\u5728-40dB\u65f6\u8868\u793a\u4e3a1\/100\uff0c\u5728-80db\u65f6\u8868\u793a\u4e3a1\/10000\uff0c\u8be5\u503c\u8d8a\u5927\uff0c\u6027\u80fd\u8d8a\u597d\u3002 \u5728dB\u7684\u60c5\u51b5\u4e0b\uff0c\u76f8\u5bf9\u503c\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u4e0e\u5176\u4ed6\u503c\u8fdb\u884c\u6bd4\u8f83\u662f\u6ca1\u6709\u610f\u4e49\u7684\u3002<\/p>\n<div id=\"attachment_4776\" style=\"width: 610px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4776\" class=\"wp-image-4776 size-600\" src=\"https:\/\/aval-global.com\/wp-content\/uploads\/2020\/02\/graph-intensity-db-en-1-600x384.jpg\" alt=\"\" width=\"600\" height=\"384\" \/><p id=\"caption-attachment-4776\" class=\"wp-caption-text\">\u56fe\u7247 5. \u9891\u8c31\u56fe<\/p><\/div>\n<\/div>\n<p><strong>Decibel(dB) \u5173\u4e8e\u8bb0\u53f7<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 18.7958%; height: 311px;\" border=\"1\">\n<tbody>\n<tr style=\"background-color: #115dba;\">\n<td style=\"width: 6.61051%; text-align: center; height: 23px;\"><span style=\"color: #ffffff;\">\u500d\u7387<\/span><\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 23px;\"><span style=\"color: #ffffff;\">\u7535\u538b\u6bd4<\/span><\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">0.00dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/2<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-6.02dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/3<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-9.54dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/4<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-12.04dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/5<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-13.98dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/10<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-20.00dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/50<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-33.98dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/100<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-40.00dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/500<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-53.98dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/1,000<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-60.00dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/5,000<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-73.98dB<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 6.61051%; text-align: center; height: 24px;\">1\/10,000<\/td>\n<td style=\"width: 13.7346%; text-align: center; height: 24px;\">-80.00dB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u91c7\u7528PCI Express\u63a5\u53e3\u7684\u89e3\u51b3\u65b9\u6848\u5c06\u7ee7\u7eed\u52a0\u901f\u3002 PCI Express\u76ee\u524d\u6b63\u5728\u4ece2.0\u5347\u7ea7\u52303.0\u30014.0\uff0c\u5e76\u4e14\u5185\u5b58\u4eceDDR4\u5347\u7ea7\u5230DDR5\uff0cDigitizer\u677f\u4e5f\u5c06\u5f88\u5feb\u9762\u5e02\uff0c\u51765GSps\u4ee5\u4e0a\u7684ADC\u548c\u80fd\u591f\u540c\u65f6\u5bf9500MHz\u548c16bit\u7684\u56db\u4e2a\u901a\u9053\u8fdb\u884c\u91c7\u6837\u7684\u4ea7\u54c1\u3002 \u5c06\u6765\uff0c\u5728\u8003\u8651\u9ad8\u6027\u80fdDigitizer\u677f\u65f6\uff0c\u9664\u4e86\u4e0a\u8ff0\u6027\u80fd\u5916\uff0c\u8fd8\u5fc5\u987b\u8003\u8651\u4fe1\u53f7\u4e4b\u95f4\u7684\u540c\u6b65\u8bef\u5dee\uff0c\u5982\u4f55\u4f7f\u7528\u5916\u90e8\u65f6\u949f\u4ee5\u53ca\u9700\u8981\u901a\u8fc7FPGA\u5904\u7406\u4fe1\u53f7\u7684\u5fc5\u8981\u6027\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u673a\u5668\u89c6\u89c9\u884c\u4e1a\u4e2d\uff0c\u6211\u60f3\u4ecb\u7ecd\u4e00\u4e2a\u770b\u4f3c\u5947\u602a\u7684\u6a21\u62dfI \/ O\u63a5\u53e3\u677f\u3002\u901a\u5e38\uff0c\u6d4b\u91cf\u6e29\u5ea6\uff0c\u538b\u529b\uff0c\u6d41\u91cf\uff0c\u632f\u52a8\u7b49\u7684\u4f20\u611f\u5668\u5f88\u5bb9\u6613\u5728\u5468\u56f4\u73af\u5883\u4e2d\u4f7f\u7528\uff0c\u8f93\u51fa\u6a21\u62df\u4fe1\u53f7\uff0c\u5e76\u4e14\u7528\u4e8e\u63a7\u5236\u7684\u6267\u884c\u5668\u5927\u591a\u4f7f\u7528\u6a21\u62df\u4fe1\u53f7\u8fdb\u884c\u64cd\u4f5c\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u5728\u7528\u4e8e\u6d4b\u91cf\u548c\u68c0\u67e5\u7684PC\u4e2d\u5904\u7406\u6a21\u62df\u4fe1\u53f7\uff0c\u9700\u8981\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\u7684\u63a5\u53e3\u677f\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\u4f7f\u7528\u7684\u65e5\u672c\u7684AVALDATA\u7684\u9ad8\u901f\uff0c\u9ad8\u6027\u80fd\u6570\u5b57\u5316\u4eea\u677f\uff0c\u5e76\u8ba8\u8bba\u4e86\u9009\u62e9\u6570\u5b57\u5316\u4eea\u677f\u7684\u91cd\u8981\u56e0\u7d20\u3002 AVALDATA\u7684\u9ad8\u901f\u6a21\u62df\u677f\uff08Express Converter\uff09\u7cfb\u5217\u4e13\u4e3a\u8981\u6c42\u91c7\u6837\u7387\u572820Msps\u81f31Gsps\u8303\u56f4\u5185\u7684\u6d4b\u91cf\uff0c\u6d4b\u8bd5\u548c\u901a\u4fe1\u8bbe\u5907\u800c\u8bbe\u8ba1\u3002 \u8fd9\u6837\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u9ad8\u901fADC(Analog to Digital Conversion) \u8bbe\u5907\u548cAVALDATA\u7684PCI [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3863,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[245],"tags":[251],"class_list":["post-4772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-cn","tag-251"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/posts\/4772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/aval-global.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4772"}],"version-history":[{"count":2,"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/posts\/4772\/revisions"}],"predecessor-version":[{"id":4853,"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/posts\/4772\/revisions\/4853"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aval-global.com\/index.php?rest_route=\/wp\/v2\/media\/3863"}],"wp:attachment":[{"href":"https:\/\/aval-global.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aval-global.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aval-global.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}