{"id":281,"date":"2025-03-04T15:50:27","date_gmt":"2025-03-04T07:50:27","guid":{"rendered":"https:\/\/www.bihec.com\/srs-inc\/?p=281"},"modified":"2025-03-04T15:50:27","modified_gmt":"2025-03-04T07:50:27","slug":"srs-sr445a%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/srs-inc\/srs-sr445a%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/","title":{"rendered":"SRS SR445A\u524d\u7f6e\u653e\u5927\u5668"},"content":{"rendered":"<div class=\"w3-row\">\n<div class=\"w3-half w3-hide-medium w3-hide-small\">\n<div class=\"f3\"><span class=\"ProdPgTITLESb2021\"><a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/srs-sr445a%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" title=\"View all posts in SRS SR445A\u524d\u7f6e\u653e\u5927\u5668\" target=\"_blank\">SRS SR445A\u524d\u7f6e\u653e\u5927\u5668<\/a>-350 MHz<a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" title=\"View all posts in \u524d\u7f6e\u653e\u5927\u5668\" target=\"_blank\">\u524d\u7f6e\u653e\u5927\u5668<\/a><\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"w3-row\">\n<div class=\"w3-half w3-hide-medium w3-hide-small\" align=\"left\">\n<div class=\"e1\">\n<ul>\n<li class=\"Bullets2021\">4\u4e2a\u72ec\u7acb\u9891\u9053<\/li>\n<li class=\"Bullets2021\">DC\u81f3350 MHz\u5e26\u5bbd<\/li>\n<li class=\"Bullets2021\">1 ns\u4e0a\u5347\/\u4e0b\u964d\u65f6\u95f4<\/li>\n<li class=\"Bullets2021\">6.4 nV\/\u221aHz\u8f93\u5165\u566a\u58f0<\/li>\n<li class=\"Bullets2021\">\u7535\u538b\u589e\u76ca\u81f3625<\/li>\n<li class=\"Bullets2021\">50\u03c9\u8f93\u5165\u548c\u8f93\u51fa\u963b\u6297<\/li>\n<li class=\"Bullets2021\">3 ns\u8fc7\u8f7d\u6062\u590d<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"q1\" align=\"left\">\n<div class=\"w3-hide-small\"><span class=\"ProdPgTITLESb2021\">\u6982\u89c2<\/span><\/div>\n<div class=\"w3-hide-small\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.thinksrs.com\/images\/misc\/SRS%20lower%20Nav%20bar%20backgound.png\" width=\"45%\" height=\"1px\" \/><\/div>\n<\/div>\n<div class=\"w3-row\">\n<div class=\"w3-half w3-hide-small\">\n<div class=\"b1\">\n<table>\n<tbody>\n<tr>\n<td width=\"430px\"><span class=\"Text2021\">SR445A\u578b350 MHz\u524d\u7f6e\u653e\u5927\u5668\u5305\u542b\u56db\u4e2a\u5bbd\u5e26\u5bbd,\u00a0<a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/dc%e8%80%a6%e5%90%88%e7%9a%84%e6%94%be%e5%a4%a7%e5%99%a8\/\" title=\"View all posts in DC\u8026\u5408\u7684\u653e\u5927\u5668\" target=\"_blank\">DC\u8026\u5408\u7684\u653e\u5927\u5668<\/a>\uff0c\u6bcf\u4e2a\u90fd\u6709\u589e\u76ca\u51715\u4e2a\u3002\u8fd9\u56db\u4e2a\u901a\u9053\u53ef\u4ee5\u72ec\u7acb\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u7ea7\u8054\u4f7f\u7528\uff0c\u4ee5\u63d0\u4f9b\u6700\u9ad8\u7684\u603b\u589e\u76ca\u5230625\u3002SR445A\u7684\u5feb\u901f\u4e0a\u5347\u65f6\u95f4\u3001\u4f4e\u566a\u58f0\u548c\u51fa\u8272\u7684DC\u7cbe\u5ea6\u4f7f\u5176\u6210\u4e3a\u653e\u5927\u5feb\u901f\u5149\u7535\u500d\u589e\u7ba1\u548c\u5149\u7535\u4e8c\u6781\u7ba1\u8f93\u51fa\u7684\u7406\u60f3\u4eea\u5668\u3002<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<div class=\"w3-half w3-hide-small w3-padding-fprp\" align=\"center\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" src=\"https:\/\/www.thinksrs.com\/images\/instr\/sr445a\/SR445A_FPlg.jpg\" width=\"400\" height=\"107\" \/>\u00a0<img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" src=\"https:\/\/www.thinksrs.com\/images\/instr\/sr445a\/SR445A_RPlg.jpg\" width=\"438\" height=\"127\" \/><\/div>\n<div align=\"center\"><\/div>\n<\/div>\n<div class=\"d1\"><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div>\n<div class=\"w3-hide-small\">\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"ProdPgTITLESc2021\"><a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/sr445a-350-mhz%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" title=\"View all posts in SR445A 350 MHz\u524d\u7f6e\u653e\u5927\u5668\" target=\"_blank\">SR445A 350 MHz\u524d\u7f6e\u653e\u5927\u5668<\/a><\/p>\n<\/div>\n<p class=\"Text2021\">SR445A\u578b350 MHz\u524d\u7f6e\u653e\u5927\u5668\u5305\u542b\u56db\u4e2a\u5bbd\u5e26\u5bbd,\u00a0DC\u8026\u5408\u7684\u653e\u5927\u5668\uff0c\u6bcf\u4e2a\u90fd\u6709\u589e\u76ca\u51715\u4e2a\u3002\u8fd9\u56db\u4e2a\u901a\u9053\u53ef\u4ee5\u72ec\u7acb\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u7ea7\u8054\u4f7f\u7528\uff0c\u4ee5\u63d0\u4f9b\u6700\u9ad8\u7684\u603b\u589e\u76ca\u5230625\u3002SR445A\u7684\u5feb\u901f\u4e0a\u5347\u65f6\u95f4\u3001\u4f4e\u566a\u58f0\u548c\u51fa\u8272\u7684DC\u7cbe\u5ea6\u4f7f\u5176\u6210\u4e3a\u653e\u5927\u5feb\u901f\u5149\u7535\u500d\u589e\u7ba1\u548c\u5149\u7535\u4e8c\u6781\u7ba1\u8f93\u51fa\u7684\u7406\u60f3\u4eea\u5668\u3002SR445A\u53ef\u7528\u4e8e\u63d0\u9ad8\u793a\u6ce2\u5668\u3001\u5149\u5b50\u8ba1\u6570\u5668\u3001boxcar\u5e73\u5747\u5668\u3001\u9891\u8c31\u5206\u6790\u4eea\u7b49\u7684\u7075\u654f\u5ea6\u9ad8\u9891\u7387\u7684\u6d4b\u8bd5\u8bbe\u5907\u3002<\/p>\n<p class=\"Text2021\">\u6bcf\u4e2a\u901a\u9053\u7684\u8f93\u5165\u548c\u8f93\u51fa\u963b\u6297\u5747\u4e3a50\u03c9\u3002\u901a\u90531\u7684\u8f93\u5165\u963b\u6297\u53ef\u901a\u8fc7a\u63d0\u9ad8\u81f3\u7ea6500\u03c9\u524d\u9762\u677f\u5f00\u5173\u3002\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u6765\u81ea\u7535\u6d41\u548c\u7535\u8377\u8f93\u51fa\u8bbe\u5907(\u5982\u5149\u7535\u500d\u589e\u7ba1)\u7684\u4fe1\u53f7\u7684\u7075\u654f\u5ea6\u3002\u6bcf\u4e2a\u901a\u9053\u90fd\u6709\u5355\u72ec\u7684\u5931\u8c03\u8c03\u6574\uff0c\u5141\u8bb8\u60a8\u5feb\u901f\u6d88\u9664DC\u8bef\u5dee\u3002<\/p>\n<table>\n<tbody>\n<tr valign=\"top\">\n<td colspan=\"2\" height=\"21\">\n<p class=\"ProdPgTITLESc2021\">SR445A Specifications<\/p>\n<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td colspan=\"2\" valign=\"middle\" height=\"40\">\n<p class=\"TextTITLESb2021\">General<\/p>\n<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td width=\"150\"><span class=\"Specs2021\">Amplifier channels<\/span><\/td>\n<td><span class=\"Specs2021\">4<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Inputs and outputs<\/span><\/td>\n<td><span class=\"Specs2021\">50 \u03a9 (DC coupled)<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Bandwidth<\/span><\/td>\n<td><span class=\"Specs2021\">DC to 350 MHz (-3 dB)<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Rise\/fall time<\/span><\/td>\n<td><span class=\"Specs2021\">1 ns (single channel)<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Voltage gain<\/span><\/td>\n<td><span class=\"Specs2021\">5 per channel (up to 4 channels can be\u00a0cascaded)<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Input noise<\/span><\/td>\n<td><span class=\"Specs2021\">6.4 nV\/\u221aHz<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Operating range<\/span><\/td>\n<td><span class=\"Specs2021\">Inputs: \u00b1200 mV<br \/>\nOutputs: \u00b11.0 V<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Propagation delay<\/span><\/td>\n<td><span class=\"Specs2021\">2.7 ns per channel<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Recovery time<\/span><\/td>\n<td><span class=\"Specs2021\">3 ns for a 10\u00d7 overload<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Input protection<\/span><\/td>\n<td><span class=\"Specs2021\">\u00b150 V for &lt;1 ms<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Output clamp<\/span><\/td>\n<td><span class=\"Specs2021\">\u00b11.6 V<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Output overload detect<\/span><\/td>\n<td><span class=\"Specs2021\">\u00b11.3 V<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Crosstalk<\/span><\/td>\n<td><span class=\"Specs2021\">-60 dB<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Operating temperature<\/span><\/td>\n<td><span class=\"Specs2021\">0 \u00b0C to 40 \u00b0C, non-condensing<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Dimensions<\/span><\/td>\n<td><span class=\"Specs2021\">8.3&#8243; \u00d7 1.5&#8243; \u00d7 8.0&#8243; (WHL)<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Power<\/span><\/td>\n<td><span class=\"Specs2021\">10 W, 100\/120\/220\/240 VAC, 50\/60\u00a0Hz<\/span><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td><span class=\"Specs2021\">Warranty<\/span><\/td>\n<td><span class=\"Specs2021\">One year parts and labor on defects in materials and\u00a0workmanship<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<br><div class=\"tagcloud\"><a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/dc%e8%80%a6%e5%90%88%e7%9a%84%e6%94%be%e5%a4%a7%e5%99%a8\/\" class=\"tag-cloud-link tag-link-0 tag-link-position-1\" style=\"font-size: 16.615384615385pt;\" aria-label=\"DC\u8026\u5408\u7684\u653e\u5927\u5668 (4\u4e2a\u9879\u76ee)\">DC\u8026\u5408\u7684\u653e\u5927\u5668<\/a>\n<a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/sr445a-350-mhz%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-2\" style=\"font-size: 8pt;\" aria-label=\"SR445A 350 MHz\u524d\u7f6e\u653e\u5927\u5668 (1\u4e2a\u9879\u76ee)\">SR445A 350 MHz\u524d\u7f6e\u653e\u5927\u5668<\/a>\n<a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/srs-sr445a%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" class=\"tag-cloud-link tag-link-2 tag-link-position-3\" style=\"font-size: 8pt;\" aria-label=\"SRS SR445A\u524d\u7f6e\u653e\u5927\u5668 (1\u4e2a\u9879\u76ee)\">SRS SR445A\u524d\u7f6e\u653e\u5927\u5668<\/a>\n<a href=\"https:\/\/www.bihec.com\/srs-inc\/tag\/srs%e4%bd%8e%e5%99%aa%e5%a3%b0%e7%94%b5%e5%8e%8b%e5%89%8d%e7%bd%ae%e6%94%be%e5%a4%a7%e5%99%a8\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-4\" style=\"font-size: 22pt;\" aria-label=\"SRS\u4f4e\u566a\u58f0\u7535\u538b\u524d\u7f6e\u653e\u5927\u5668 (8\u4e2a\u9879\u76ee)\">SRS\u4f4e\u566a\u58f0\u7535\u538b\u524d\u7f6e\u653e\u5927\u5668<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>SRS SR445A\u524d\u7f6e\u653e\u5927\u5668-350 MHz\u524d\u7f6e\u653e\u5927\u5668 4\u4e2a\u72ec\u7acb\u9891\u9053 DC\u81f3350 MHz\u5e26\u5bbd 1 ns\u4e0a\u5347\/\u4e0b\u964d\u65f6\u95f4 6.4 nV\/\u221aHz\u8f93\u5165\u566a\u58f0 \u7535\u538b\u589e\u76ca\u81f3625 50\u03c9\u8f93\u5165 <\/p>\n","protected":false},"author":12,"featured_media":254,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[]},"categories":[42,4],"tags":[48,49,50,44],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SRS SR445A\u524d\u7f6e\u653e\u5927\u5668<\/title>\n<meta name=\"description\" content=\"SRS 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