{"id":146919,"date":"2024-04-27T12:59:09","date_gmt":"2024-04-27T12:59:09","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%9c%84%ec%83%81-%eb%8f%99%ea%b8%b0-%eb%a3%a8%ed%94%84\/"},"modified":"2024-04-27T12:59:09","modified_gmt":"2024-04-27T12:59:09","slug":"%ec%9c%84%ec%83%81-%eb%8f%99%ea%b8%b0-%eb%a3%a8%ed%94%84","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%9c%84%ec%83%81-%eb%8f%99%ea%b8%b0-%eb%a3%a8%ed%94%84\/","title":{"rendered":"\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504"},"content":{"rendered":"<p class=\"sidekick\">\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL)\ub294 \uc804\uc790 \ubc0f \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc758 \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \uc81c\uc5b4\ud558\ub294 \ud53c\ub4dc\ubc31 \ud68c\ub85c\ub85c, \uc815\ud655\ud55c \ub3d9\uae30\ud654\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\uc704\uc0c1-\ub3d9\uae30-\ub8e8\ud504.png\" alt=\"\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504\"\/><\/p>\n<h2>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(Phase-Locked Loop, PLL)\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n<p>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(Phase-Locked Loop, PLL)\ub294 \ubcf5\uc7a1\ud55c \uc804\uc790 \uc2dc\uc2a4\ud15c\uacfc \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ud53c\ub4dc\ubc31 \ud68c\ub85c\uc785\ub2c8\ub2e4. PLL\uc740 \uc785\ub825 \uc2e0\ud638\uc758 \uc704\uc0c1\uc744 \ucd94\uc801\ud558\uace0 \uc77c\uce58\uc2dc\ud0a4\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc73c\uba70, \uc774\ub97c \ud1b5\ud574 \uc2e0\ud638\uc758 \uc9c4\ub3d9\uc218\ub97c \uc81c\uc5b4\ud558\ub294\ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504\uc758 \ud575\uc2ec \ubaa9\uc801\uc740 \uc8fc\uc5b4\uc9c4 \uae30\uc900 \uc2e0\ud638 \ud639\uc740 &#8216;\uc6d0\ud558\ub294&#8217; \uc2e0\ud638\uc5d0 \ub300\ud574 \uc9c4\ub3d9\uc218 \uc0c1\uc5d0 \ub3d9\uae30\ud654\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2>PLL\uc758 \uad6c\uc131 \uc694\uc18c<\/h2>\n<ul>\n<li><strong>\uc704\uc0c1 \uac80\ucd9c\uae30(Phase Detector, PD)<\/strong> &#8211; \uc785\ub825\uc2e0\ud638\uc640 \ube44\uad50\uc2e0\ud638(VCO\uc5d0\uc11c \ub098\uc628 \ucd9c\ub825 \uc2e0\ud638)\uc758 \uc704\uc0c1 \ucc28\uc774\ub97c \uac80\ucd9c\ud558\uc5ec \uc804\uc555 \uc2e0\ud638\ub85c \ubcc0\ud658\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc704\uc0c1 \ucc28\uc774\uac00 \ud074\uc218\ub85d PD\uc5d0\uc11c \ub098\uc624\ub294 \uc804\uc555\ub3c4 \ub192\uc544\uc9d1\ub2c8\ub2e4.<\/li>\n<li><strong>\ub8e8\ud504 \ud544\ud130(Loop Filter)<\/strong> &#8211; \uc704\uc0c1 \uac80\ucd9c\uae30 \ucd9c\ub825\uc758 \ubd88\ud544\uc694\ud55c \ub178\uc774\uc988\ub97c \uc81c\uac70\ud558\uace0, PLL\uc758 \ub3d9\uc791 \uc2dc\uac04(\uc751\ub2f5 \uc2dc\uac04)\uc744 \uacb0\uc815\uc9c0\uc744 \uc218 \uc788\ub294 \ubd80\ud488\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uc804\uc555 \uc81c\uc5b4 \ubc1c\uc9c4\uae30(Voltage-Controlled Oscillator, VCO)<\/strong> &#8211; \ub8e8\ud504 \ud544\ud130\ub85c\ubd80\ud130 \uc624\ub294 \uc804\uc555\uc5d0 \uc758\ud574 \uadf8 \uc9c4\ub3d9\uc218\uac00 \uc870\uc808\ub418\ub294 \ubc1c\uc9c4\uae30\ub85c, PLL\uc758 \ucd9c\ub825 \uc2e0\ud638\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ubd84\uc8fc\uae30(Divider)<\/strong> &#8211; \uc120\ud0dd\uc801\uc73c\ub85c PLL \ud68c\ub85c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294\ub370, VCO\uc758 \uc8fc\ud30c\uc218\ub97c \ub098\ub220\uc11c PD\ub85c \ubcf4\ub0b4 \uc704\uc0c1 \ube44\uad50\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \uc774 \ubd84\uc8fc \ube44\uc728\uc740 PLL\uc774 \ub3d9\uae30\ud654\ud574\uc57c \ud560 \ub300\uc0c1 \uc8fc\ud30c\uc218\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>PLL\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>PLL\uc740 \uae30\ubcf8\uc801\uc73c\ub85c &#8216;\uc7a0\uae08(Lock)&#8217;\uacfc &#8216;\ucd94\uc801(Track)&#8217; \ub450 \uac00\uc9c0 \ub3d9\uc791 \uc0c1\ud0dc\ub97c \uac16\uc2b5\ub2c8\ub2e4. \uc7a0\uae08 \uc0c1\ud0dc\uc5d0\uc11c\ub294 PLL\uc774 \ucc38\uc870 \uc2e0\ud638\uc5d0 \ub300\ud55c VCO\uc758 \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \uc815\ud655\ud558\uac8c \ub9de\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ucd94\uc801 \uc0c1\ud0dc\uc5d0\uc11c\ub294 \ucc38\uc870 \uc2e0\ud638\uc758 \ubbf8\uc138\ud55c \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\uace0, \uc774\uc5d0 \ub530\ub77c VCO\uc758 \uc8fc\ud30c\uc218\ub97c \uc870\uc808\ud558\uc5ec \uacc4\uc18d\ud574\uc11c \uc704\uc0c1\uc744 \ub9de\ucd94\uace0 \ub4a4\ub530\ub985\ub2c8\ub2e4.<\/p>\n<p>\uc544\ub798\ub294 PLL\uc774 \uc791\ub3d9\ud558\ub294 \uae30\ubcf8\uc801\uc778 \ub2e8\uacc4\uc785\ub2c8\ub2e4:<\/p>\n<ol>\n<li>\ucc38\uc870 \uc2e0\ud638\uc640 VCO \uc2e0\ud638\ub294 \uc704\uc0c1 \uac80\ucd9c\uae30\uc5d0\uc11c \ube44\uad50\ub429\ub2c8\ub2e4.<\/li>\n<li>\uc704\uc0c1 \uac80\ucd9c\uae30\ub294 \ub450 \uc2e0\ud638 \uc0ac\uc774\uc758 \uc704\uc0c1 \ucc28\uc774\ub97c \uc804\uc555 \uc2e0\ud638\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uc704\uc0c1 \uc624\ucc28\uac00 \uc5c6\uc73c\uba74 \uc804\uc555\uc740 0\uc785\ub2c8\ub2e4.<\/li>\n<li>\uc774 \uc624\ucc28 \uc804\uc555\uc740 \ub8e8\ud504 \ud544\ud130\ub97c \ud1b5\uacfc\ud574 \uace0\uc8fc\ud30c \ub178\uc774\uc988\uac00 \uc81c\uac70\ub418\uace0, VCO\ub97c \uc81c\uc5b4\ud558\ub294 \ub370 \uc801\ud569\ud55c \ud615\ud0dc\ub85c \ubcc0\uacbd\ub429\ub2c8\ub2e4.<\/li>\n<li>\ub8e8\ud504 \ud544\ud130\ub97c \ud1b5\uacfc\ud55c \uc804\uc555\uc740 VCO\uc758 \uc8fc\ud30c\uc218\ub97c \uc870\uc808\ud569\ub2c8\ub2e4. \uc624\ucc28 \uc804\uc555\uc774 \ub192\uc73c\uba74 VCO\uc758 \uc8fc\ud30c\uc218\ub294 \uc99d\uac00\ud558\uace0, \uc624\ucc28 \uc804\uc555\uc774 \ub0ae\uc73c\uba74 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/li>\n<li>VCO\uc758 \ubcc0\uacbd\ub41c \uc8fc\ud30c\uc218\ub294 \ud544\uc694\uc5d0 \ub530\ub77c \ubd84\uc8fc\uae30\ub97c \ud1b5\ud574 \ub2e4\uc2dc PD\ub85c \uc804\ub2ec\ub418\uc5b4 \uc704\uc0c1\ube44\uad50 \uacfc\uc815\uc774 \ubc18\ubcf5\ub429\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>PLL\uc758 \uc751\uc6a9<\/h2>\n<p>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504\ub294 \ub2e4\uc591\ud55c \uc804\uc790 \uae30\uae30\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub418\uba70, \uc8fc\ub41c \uc751\uc6a9 \ubd84\uc57c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc2e0\ud638\uc758 \uc8fc\ud30c\uc218\ub97c \uc548\uc815\uc801\uc73c\ub85c \uc720\uc9c0\ud558\ub294 \ub3d9\uae30\ud654<\/li>\n<li>\ub370\uc774\ud130 \ud1b5\uc2e0\uc5d0\uc11c \ud074\ub7ed \uc2e0\ud638\uc758 \uc0dd\uc131\uacfc \ub3d9\uae30\ud654<\/li>\n<li>FM(\uc8fc\ud30c\uc218 \uc870\uc815)\uacfc PM(\uc704\uc0c1 \uc870\uc815) \uc218\uc2e0\uae30\uc5d0\uc11c \ud0c4\ub825\uc801\uc778 \uc8fc\ud30c\uc218 \ub3d9\uae30\ud654 \uc218\ud589<\/li>\n<li>CPU\uc640 \ub2e4\ub978 \ub514\uc9c0\ud138 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ud074\ub7ed \uc138\ub300\uc640 \ubd84\ubc30<\/li>\n<\/ul>\n<p>PLL\uc740 \uadf8 \uc791\ub3d9 \uc6d0\ub9ac\uac00 \ube44\uad50\uc801 \uac04\ub2e8\ud568\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \uace0\ub3c4\ub85c \uc815\ud655\ud558\uace0 \uc720\uc5f0\ud55c \uc8fc\ud30c\uc218 \uad00\ub9ac\ub97c \uac00\ub2a5\ud558\uac8c \ud558\ub294 \uae30\uc220\ub85c, \ud604\ub300 \uc804\uc790 \ubc0f \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub450\ub8e8 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uae30\uc220\uc758 \ubc1c\uc804\uc73c\ub85c \ub354\uc6b1 \ud1b5\ud569\ub418\uace0 \ubbf8\uc138\ud574\uc9c4 PLL \ud68c\ub85c\ub4e4\uc774 \uac1c\ubc1c\ub418\uc5b4, \uc18c\ud615\ud654\uc640 \uace0\uc131\ub2a5\ud654\ub97c \ub3d9\uc2dc\uc5d0 \ucd94\uad6c\ud558\ub294 \ud604\ub300 \uae30\uae30\uc5d0\uc11c \ud544\uc218\uc801\uc778 \ubd80\ud3ec\uac00\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL)\ub294 \uc804\uc790 \ubc0f \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc758 \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \uc81c\uc5b4\ud558\ub294 \ud53c\ub4dc\ubc31 \ud68c\ub85c\ub85c, \uc815\ud655\ud55c \ub3d9\uae30\ud654\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":172151,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-146919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL)\ub294 \uc804\uc790 \ubc0f \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc758 \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \uc81c\uc5b4\ud558\ub294 \ud53c\ub4dc\ubc31 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