{"id":312,"date":"2015-09-18T08:19:35","date_gmt":"2015-09-18T15:19:35","guid":{"rendered":"http:\/\/www.serdesdesign.com\/?page_id=312"},"modified":"2018-09-02T21:12:38","modified_gmt":"2018-09-03T04:12:38","slug":"typical-ctle-characteristics-and-displays","status":"publish","type":"page","link":"https:\/\/www.serdesdesign.com\/home\/typical-ctle-characteristics-and-displays\/","title":{"rendered":"Typical CTLE Characteristics and Displays"},"content":{"rendered":"<p>This\u00a0section discusses typical CTLE characteristics and displays.<span style=\"mso-spacerun: yes;\">\u00a0 <\/span>Let us know if you would like the CTLE\u00a0Analysis Tool enhanced with additional capability.<\/p>\n<div class=\"WordSection1\">\n<p><span style=\"font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;\">For\u00a0discussion, a typical CTLE for use with serial data at a bit rate (<span class=\"SpellE\">BitRate<\/span>) of 6.25 <span class=\"SpellE\">Gbps<\/span> is defined\u00a0with two zeros ( 1.0e9, 1.5e9 Hz) and three poles ( 1.8e9, 2.0e9, 10e9 Hz) with\u00a0unity gain at 0 Hz.<span style=\"mso-spacerun: yes;\">\u00a0 <\/span>This results in 6 dB\u00a0peaking gain at the <span class=\"SpellE\">Nyquist<\/span> frequency (3.125e9 Hz).<\/span><\/p>\n<p><span style=\"font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;\">This\u00a0CTLE is simulated with sample rate of 32 * <span class=\"SpellE\">BitRate<\/span> =\u00a0200e9 Hz to show its time domain impulse waveform and frequency domain\u00a0magnitude responses.<span style=\"mso-spacerun: yes;\">\u00a0 <\/span><\/span><span style=\"font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black; mso-themecolor: text1;\">For the 6.25 <span class=\"SpellE\">Gbps<\/span> data rate,\u00a0one unit bit time interval (UI) is 160 psec. <\/span><\/p>\n<p><span style=\"font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;\">Figure\u00a01:<span style=\"mso-spacerun: yes;\">\u00a0 <\/span>The CTLE spectrum magnitude response\u00a0is shown here.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-316\" src=\"https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_frequency_response.png\" alt=\"CTLE_frequency_response\" width=\"922\" height=\"292\" srcset=\"https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_frequency_response.png 922w, https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_frequency_response-300x95.png 300w\" sizes=\"auto, (max-width: 922px) 100vw, 922px\" \/><\/p>\n<p><span style=\"font-size: 10.0pt; font-family: 'Arial','sans-serif'; color: black;\">Figure\u00a02.<span style=\"mso-spacerun: yes;\">\u00a0 <\/span>The CTLE impulse waveform is shown\u00a0here.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-315\" src=\"https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_impulse_response.png\" alt=\"CTLE_impulse_response\" width=\"924\" height=\"294\" srcset=\"https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_impulse_response.png 924w, https:\/\/www.serdesdesign.com\/home\/wp-content\/uploads\/2015\/09\/CTLE_impulse_response-300x95.png 300w\" sizes=\"auto, (max-width: 924px) 100vw, 924px\" \/><\/p>\n<p>The CTLE Analysis Tool provides easy exploration of the\u00a0response characteristics for a defined CTLE.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This\u00a0section discusses typical CTLE characteristics and displays.\u00a0 Let us know if you would like the CTLE\u00a0Analysis Tool enhanced with additional capability. For\u00a0discussion, a typical CTLE for use with serial data at a bit rate (BitRate) of 6.25 Gbps is defined\u00a0with two zeros ( 1.0e9, 1.5e9 Hz) and three poles ( 1.8e9, 2.0e9, 10e9 Hz) with\u00a0unity [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-312","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/comments?post=312"}],"version-history":[{"count":1,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/312\/revisions"}],"predecessor-version":[{"id":906,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/312\/revisions\/906"}],"wp:attachment":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/media?parent=312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}