[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-562975-105":59,"doc-detail-562975-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","pir-sensor-interface-ls6522","PIR SENSOR INTERFACE - LS6522","","LSI LS6522 is a CMOS integrated circuit for detecting motion from a PIR sensor and initiating controlled outputs for occupancy sensing and outdoor motion-triggered lighting. The design combines a two-stage differential amplifier with selectable gain/bandwidth, a window comparator with noise filtering, and a comparator digital filter that requires motion for a defined duration. A regulated +5V output powers the PIR sensor interface and the device supports inhibit, selectable dead time, and single or dual pulse detection modes, including triac or relay drive control.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/pir-sensor-interface-ls6522/562975/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/pir-sensor-interface-ls6522/562975.png","ImageObject",300,407,{"name":92,"@type":93},"dawugda","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-13","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the LS6522 designed to do?","Question",{"text":112,"@type":113},"LS6522 detects motion from a PIR sensor and initiates appropriate responses through controlled output logic for lighting and sensing applications.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the LS6522 filter noise and recognize motion?",{"text":117,"@type":113},"A window comparator enables only signals meeting fixed thresholds after the differential amplifier, and a comparator digital filter requires motion to be present for a certain duration before producing output pulses.",{"name":119,"@type":110,"acceptedAnswer":120},"What output switching options does the LS6522 support?",{"text":121,"@type":113},"The LS6522 provides an open-drain output that can drive a triac when the oscillator input is grounded and AC is applied, or drive a relay when AC is grounded and an RC network is connected to the oscillator input.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},562975,1791858252,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":46},3985747870947,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","LSI/CSI  LS6522  \nLSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405  \n\n| PIR SENSOR INTERFACE February 2014 |  |  |  |\n| --- | --- | --- | --- |\n| FEATURES:\u003Cbr>• Low Quiescent Current\u003Cbr>• Direct Interface with PIR Sensor\u003Cbr>• Two-Stage Differential Amplifier\u003Cbr>• Amplifier Gain and Bandwidth externally controlled\u003Cbr>• Window Comparator and Digital Filter limit Noise\u003Cbr>• Triac or Relay Output Drive\u003Cbr>• Programmable Output Duration Timer\u003Cbr>• Ambient Light Level Inhibit input\u003Cbr>• Selectable Dead Time\u003Cbr>• Single or Dual Pulse Detection\u003Cbr>• Timing derived from RC Oscillator or 50Hz/60Hz AC\u003Cbr>• Regulated 5V Output for PIR Sensor\u003Cbr>• Motion Detection LED Indicator\u003Cbr>• LS6522 (DIP); LS6522-S (SOIC-NB); LS6522-SW (SOIC-WB) -See Figure 1\u003Cbr>APPLICATIONS:\u003Cbr>Indoor occupancy sensors and outdoor motion-triggered\u003Cbr>lighting for energy savings, security and convenience..\u003Cbr>DESCRIPTION: (See Figure 2)\u003Cbr>The LS6522 is a CMOS integrated circuit, designed for detecting motion from a PIR Sensor and initiating appropriate responses. The detailed description of the functional blocks is as follows:\u003Cbr>DIFFERENTIAL AMPLIFIER\u003Cbr>Each stage of the two stage Differential Amplifier can be set to have its own amplification and bandwidth. The two inputs to the first stage allow for single ended or differential connection to PIR Sensors. This stage can be biased anywhere in its dynamic range. The second stage is internally biased so that the Window Comparator’s lower and higher thresholds can be fixed relative to this bias.\u003Cbr>WINDOW COMPARATOR\u003Cbr>The Window Comparator provides noise filtering by enabling only those signals equal to or greater than a fixed threshold at the output of the Differential Amplifier to appear at the output of the Window Comparator.\u003Cbr>COMPARATOR DIGITAL FILTER\u003Cbr>The output of the Window Comparator is filtered so that motion must be present for a certain duration before it can be recognized and appear as pulses at the Digital Filter output. | PIN ASSIGNMENT-TOP VIEW |  |  |\n|  | DIFF. AMP. 1 OUTPUT\u003Cbr>DIFF. AMP. 2 INPUT (- )\u003Cbr>DIFF. AMP. 2 OUTPUT OSCILLATOR INPUT\u003Cbr>AC INPUT\u003Cbr>VSS\u003Cbr>TRIAC/RELAY OUTPUT\u003Cbr>V DD | | DIFF. AMP 1 INPUT (- )\u003Cbr>DIFF. AMP 1 INPUT (+ )\u003Cbr>5V REGULATOR OUTPUT\u003Cbr>TIMER CONTROL INPUT\u003Cbr>DEAD TIME SELECT INPUT\u003Cbr>INHIBIT INPUT\u003Cbr>PULSE MODE SELECT INPUT\u003Cbr>LED OUTPUT |\n|  | OUTPUT DURATION TIMER\u003Cbr>The voltage level at the TIMER CONTROL input can select 16 different timeouts for this Timer (See Table 1) . The selection can be made by varying the setting of a potentiometer. The Timer is retriggerable and controls the ON duration of the TRIAC/RELAY output. The trigger for the Timer is generated from pulses appearing at the Digital Filter output.\u003Cbr>SINGLE PULSE/DUAL PULSE MODES\u003Cbr>A Single Pulse or Dual Pulse (two pulses occurring within a specified time period) at the Digital Filter output can be selected as the trigger for the Output Duration Timer. This selection is made by the logic level at the PULSE MODE SELECT input. Logic 0 = Single Pulse Mode, logic 1 = Dual Pulse Mode.\u003Cbr>LED OUTPUT\u003Cbr>This is an open drain output which is turned on by pulses generated by a retriggerable one-shot. The one-shot is triggered by the leading edge of pulses appearing at the Digital Filter output. When turned on, this output can sink current from a series Resistor-LED network returned to a positive voltage (VDD to 12.5V maximum) . This results in the LED lighting whenever motion is detected. |  |  |\n| 6522-021214-1 |  |  |  |\n\n\n| INHIBIT\u003Cbr>The Output Duration Timer can be inhibited from triggering by the voltage level at the INHIBIT input. When this voltage level exceeds the Inhibit Threshold, the Timer will be prevented from triggering if it is OFF. If the Timer is ON, the INHIBIT input is blocked from affecting the Timer. There is approximately 10% hysteresis between the Inhibit and Enable thresholds at the INHIBIT input. The LED output is not affecte","cbCaicUEixQUjjIB","https://ap.wps.com/l/cbCaicUEixQUjjIB","pdf",285575,"English","# Features\n## Differential Amplifier\n## Window Comparator and Digital Filter\n## Output Duration Timer\n## Pulse Modes, LED Output, and Inhibit\n## Dead Time and Oscillator\n## DC Power Supply and Regulator\n## Triac/Relay Output Drive","[{\"question\":\"What is the LS6522 designed to do?\",\"answer\":\"LS6522 detects motion from a PIR sensor and initiates appropriate responses through controlled output logic for lighting and sensing applications.\"},{\"question\":\"How does the LS6522 filter noise and recognize motion?\",\"answer\":\"A window comparator enables only signals meeting fixed thresholds after the differential amplifier, and a comparator digital filter requires motion to be present for a certain duration before producing output pulses.\"},{\"question\":\"What output switching options does the LS6522 support?\",\"answer\":\"The LS6522 provides an open-drain output that can drive a triac when the oscillator input is grounded and AC is applied, or drive a relay when AC is grounded and an RC network is connected to the oscillator input.\"}]","PIR SENSOR INTERFACE - LS6522 | PDF",1791810246]