{"id":146987,"date":"2024-04-27T13:08:03","date_gmt":"2024-04-27T13:08:03","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%9c%84%ec%83%81-%eb%8f%99%ea%b8%b0-%eb%a3%a8%ed%94%84pll-%eb%94%94%ec%bd%94%eb%8d%94\/"},"modified":"2024-04-27T13:08:03","modified_gmt":"2024-04-27T13:08:03","slug":"%ec%9c%84%ec%83%81-%eb%8f%99%ea%b8%b0-%eb%a3%a8%ed%94%84pll-%eb%94%94%ec%bd%94%eb%8d%94","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%84pll-%eb%94%94%ec%bd%94%eb%8d%94\/","title":{"rendered":"\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL) \ub514\ucf54\ub354"},"content":{"rendered":"<p class=\"sidekick\">\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL) \ub514\ucf54\ub354\uc758 \uc6d0\ub9ac\uc640 \uad6c\uc131\uc744 \uc124\uba85\ud558\uba70, \ubb34\uc120 \ud1b5\uc2e0 \ub4f1 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c\uc758 \uc751\uc6a9 \ubc29\uc2dd\uc744 \uc18c\uac1c\ud558\ub294 \uae30\uc220 \uae30\ubc18 \uae00\uc785\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(PLL)-\ub514\ucf54\ub354.png\" alt=\"\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL) \ub514\ucf54\ub354\"\/><\/p>\n<h2>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL) \ub514\ucf54\ub354\uc758 \uae30\ucd08<\/h2>\n<p>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(Phase-Locked Loop, PLL) \ub514\ucf54\ub354\ub294 \uc804\uc790\uacf5\ud559\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \ucef4\ud3ec\ub10c\ud2b8\uc785\ub2c8\ub2e4. \ubcf5\uc7a1\ud558\uac8c \ub4e4\ub9b4 \uc218 \uc788\uc9c0\ub9cc, PLL\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud55c\ub2e4\uba74, \uc774 \uae30\uc220\uc774 \uc5b4\ub5bb\uac8c \uc6b0\ub9ac \uc77c\uc0c1 \uc0dd\ud65c \uc18d\uc758 \ub2e4\uc591\ud55c \uc804\uc790 \uc7a5\uce58\uc5d0 \ud65c\uc6a9\ub418\ub294\uc9c0 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 PLL \ub514\ucf54\ub354\uc758 \uac1c\ub150, \uad6c\uc131, \uc6d0\ub9ac \ubc0f \uc751\uc6a9\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>PLL \ub514\ucf54\ub354\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n<p>PLL\uc740 \uc785\ub825 \uc2e0\ud638\uc758 \uc8fc\ud30c\uc218\ub098 \uc704\uc0c1\uc744 \uac10\uc9c0\ud558\uc5ec \uc790\ub3d9\uc73c\ub85c \ub3d9\uae30\ud654\ud558\ub294 \uc2dc\uc2a4\ud15c\uc785\ub2c8\ub2e4. \ub514\ucf54\ub354\ub77c\ub294 \uc6a9\uc5b4\ub294 PLL\uc774 \uc8fc\ud30c\uc218\ub098 \ubcc0\uc870\ub41c \uc2e0\ud638\ub97c \ud574\uc11d\ud558\uc5ec \uc6d0\ub798\uc758 \ub370\uc774\ud130\ub098 \uc815\ubcf4\ub97c \ucd94\ucd9c\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\uae30 \ub54c\ubb38\uc5d0 \ubd99\uc5ec\uc9c4 \uac83\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131 \ub54c\ubb38\uc5d0 PLL\uc740 \ubb34\uc120 \ud1b5\uc2e0, \ub370\uc774\ud130 \uc804\uc1a1, \uc2e0\ud638 \ucc98\ub9ac \ub4f1 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c \ud544\uc218\uc801\uc778 \uae30\uc220\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>PLL \ub514\ucf54\ub354\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c<\/h2>\n<ul>\n<li>\uc704\uc0c1 \uac80\ucd9c\uae30(Phase Detector, PD): \uc785\ub825 \uc2e0\ud638\uc640 \ube44\uad50 \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.<\/li>\n<li>\ub8e8\ud504 \ud544\ud130(Loop Filter): \uc704\uc0c1 \uac80\ucd9c\uae30\uc5d0\uc11c \ucd9c\ub825\ub41c \uc804\uc555 \uc2e0\ud638\ub97c \ud544\ud130\ub9c1\ud558\uc5ec \uace0\uc8fc\ud30c \uc7a1\uc74c\uc744 \uc81c\uac70\ud558\uace0, PLL\uc758 \ub3d9\uc801 \ud2b9\uc131\uc744 \uc870\uc808\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc804\uc555 \uc81c\uc5b4 \ubc1c\uc9c4\uae30(Voltage-Controlled Oscillator, VCO): \ub8e8\ud504 \ud544\ud130\uc5d0\uc11c \uc804\ub2ec\ub41c \uc804\uc555\uc5d0 \ub530\ub77c \uc8fc\ud30c\uc218\ub098 \uc704\uc0c1\uc744 \uc870\uc815\ud558\uc5ec \ucd9c\ub825 \uc2e0\ud638\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li>\ubd84\uc8fc\uae30(Divider): VCO\uc5d0\uc11c \ubc1c\uc0dd\ub41c \uace0\uc8fc\ud30c \uc2e0\ud638\ub97c \ubd84\uc8fc\ud558\uc5ec PD\ub85c \uc804\uc1a1\ud558\uae30 \uc804\uc5d0 \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218\ub85c \ub9de\ucda5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>PLL \ub514\ucf54\ub354\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>PLL\uc758 \ud575\uc2ec\uc801\uc778 \uc791\ub3d9 \uc6d0\ub9ac\ub294 &#8216;\uc704\uc0c1 \uc7a0\uae08&#8217;\uc785\ub2c8\ub2e4. \uc704\uc0c1 \uc7a0\uae08\uc774\ub780 PD\uc5d0\uc11c \uac10\uc9c0\ub41c \uc785\ub825 \uc2e0\ud638\uc640 VCO\uc5d0\uc11c \uc0dd\uc131\ub41c \ube44\uad50 \uc2e0\ud638\uc758 \uc704\uc0c1 \ucc28\uc774\ub97c \ucd5c\uc18c\ud654\ud558\uc5ec \ub450 \uc2e0\ud638\uac00 \ub3d9\uae30\ud654\ub418\ub3c4\ub85d \ud558\ub294 \uacfc\uc815\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc704\uc0c1\uc774 \uc7a0\uae08 \uc0c1\ud0dc\uac00 \ub418\uba74, VCO\ub294 \uc785\ub825 \uc2e0\ud638\uc640 \ub3d9\uc77c\ud55c \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \uac16\ub294 \uc2e0\ud638\ub97c \uc9c0\uc18d\uc801\uc73c\ub85c \ucd9c\ub825\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uc9c4\ud589\ub429\ub2c8\ub2e4.<\/p>\n<ol>\n<li>PD\uac00 \uc785\ub825 \uc2e0\ud638\uc640 VCO\uc758 \ube44\uad50 \uc2e0\ud638\uc758 \uc704\uc0c1 \ucc28\uc774\ub97c \uac80\ucd9c\ud558\uc5ec \uc624\ucc28 \uc804\uc555 \uc2e0\ud638\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li>\ub8e8\ud504 \ud544\ud130\uac00 \uc624\ucc28 \uc804\uc555 \uc2e0\ud638\ub97c \uc815\ub9ac\ud558\uc5ec \uc7a1\uc74c\uc744 \uc81c\uac70\ud558\uace0 VCO\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/li>\n<li>VCO\ub294 \uc804\ub2ec\ubc1b\uc740 \uc804\uc555\uc5d0 \ub530\ub77c \ucd9c\ub825 \uc2e0\ud638\uc758 \uc8fc\ud30c\uc218\ub97c \uc870\uc808\ud569\ub2c8\ub2e4.<\/li>\n<li>\ubd84\uc8fc\uae30\uac00 VCO\uc758 \ucd9c\ub825\uc744 \ubd84\uc8fc\ud558\uc5ec PD\ub85c \ub2e4\uc2dc \uc804\uc1a1\ud558\uc5ec \uc774 \uacfc\uc815\uc744 \ubc18\ubcf5\ud558\uba70 \uc704\uc0c1 \uc7a0\uae08\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\ud558\ub098\uc758 \ub2e4\ub978 \ubc29\uc2dd\uc73c\ub85c \uae30\uc220\ud560 \uc218 \uc788\ub294 \uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<p><i>V<sub>CO<\/sub> = K<sub>VCO<\/sub>*(V<sub>PD<\/sub>)<\/i><\/p>\n<p>\uc5ec\uae30\uc11c <i>V<sub>CO<\/sub><\/i>\ub294 VCO\uc758 \ucd9c\ub825 \uc8fc\ud30c\uc218, <i>K<sub>VCO<\/sub><\/i>\ub294 VCO\uc758 \uc774\ub4dd(\uc804\uc555\uc5d0 \ub300\ud55c \uc8fc\ud30c\uc218 \uc751\ub2f5 \ube44\uc728), \uadf8\ub9ac\uace0 <i>V<sub>PD<\/sub><\/i>\ub294 PD\uc758 \uc624\ucc28 \uc804\uc555\uc785\ub2c8\ub2e4.<\/p>\n<h2>PLL \ub514\ucf54\ub354\uc758 \uc751\uc6a9<\/h2>\n<p>PLL \ub514\ucf54\ub354\ub294 \ubb34\uc120 \ud1b5\uc2e0, \uc704\uc131 \ud1b5\uc2e0, \ub514\uc9c0\ud138 \uc2dc\uacc4, \ucef4\ud4e8\ud130 \ubaa8\ub378\ub9c1 \ubc0f \uc2e0\ud638 \ubcf5\uc870\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud734\ub300\ud3f0\uc740 PLL\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc140\ub8f0\ub7ec \ub124\ud2b8\uc6cc\ud06c\uc758 \uae30\uc9c0\uad6d\uacfc \uc815\ud655\ud55c \uc8fc\ud30c\uc218\ub85c \ud1b5\uc2e0\ud569\ub2c8\ub2e4. \ub610\ud55c, \uc704\uc131 TV \uc218\uc2e0\uae30\ub294 PLL\uc744 \ud65c\uc6a9\ud558\uc5ec \uc704\uc131 \uc2e0\ud638\ub97c \uc815\ud655\ud558\uac8c \ud29c\ub2dd\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>PLL \ub514\ucf54\ub354\ub294 \uc804\uc790\uacf5\ud559 \uae30\uc220\uc758 \uc911\uc694\ud55c \ubd80\ubd84\uc774\uba70, \uadf8 \uc6d0\ub9ac\ub294 \ub9e4\uc6b0 \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \ubc1c\uacac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac04\ub2e8\ud55c \uc6d0\ub9ac\uc640 \uad6c\uc131\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, PLL\uc740 \uace0\ub3c4\uc758 \uc815\ubc00\ud568\uacfc \ubcf5\uc7a1\ud55c \uc2dc\uc2a4\ud15c\uc744 \uc694\uad6c\ud558\ub294 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc911\ucd94\uc801\uc778 \uc5ed\ud560\uc744 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uae00\uc744 \ud1b5\ud574 PLC \ub514\ucf54\ub354\uc758 \uae30\ubcf8\uc801\uc778 \uc774\ud574\ub97c \uc5bb\uc73c\uc168\uae30\ub97c \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc704\uc0c1 \ub3d9\uae30 \ub8e8\ud504(PLL) \ub514\ucf54\ub354\uc758 \uc6d0\ub9ac\uc640 \uad6c\uc131\uc744 \uc124\uba85\ud558\uba70, \ubb34\uc120 \ud1b5\uc2e0 \ub4f1 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c\uc758 \uc751\uc6a9 \ubc29\uc2dd\uc744 \uc18c\uac1c\ud558\ub294 \uae30\uc220 \uae30\ubc18 \uae00\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":172763,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-146987","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(PLL) \ub514\ucf54\ub354 | \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) \ub514\ucf54\ub354\uc758 \uc6d0\ub9ac\uc640 \uad6c\uc131\uc744 \uc124\uba85\ud558\uba70, \ubb34\uc120 \ud1b5\uc2e0 \ub4f1 \uc5ec\ub7ec 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