[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-561233-105":59,"doc-detail-561233-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","tda9817-tda9818-data-sheet","TDA9817; TDA9818 - Data Sheet","","TDA9817 and TDA9818 are integrated circuits for vision IF signal processing and FM demodulation, supporting single-standard and multistandard vision modes. They provide wideband, gain-controlled VIF amplification, true synchronous demodulation with active carrier regeneration, and robust over-modulation handling via a gated phase detector and PLL bandwidth control. The devices include PLL- and AFC-related detection, sound IF (QSS/intercarrier) processing, AM demodulation without extra reference circuits, and stabilizer circuitry for ripple rejection, with ESD protection on all pins.",{"@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/tda9817-tda9818-data-sheet/561233/",{"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/tda9817-tda9818-data-sheet/561233.png","ImageObject",300,407,{"name":92,"@type":93},"supergirl","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What are the main functions of TDA9817 and TDA9818?","Question",{"text":112,"@type":113},"TDA9817 processes single standard vision IF and performs FM demodulation. TDA9818 supports multistandard vision IF processing and provides sound AM and FM demodulation.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the demodulation operate in the PLL/synchronous mode?",{"text":117,"@type":113},"Both devices support alignment-free FM phase-locked loop (PLL) demodulation with high linearity, including true synchronous demodulation with active carrier regeneration.",{"name":119,"@type":110,"acceptedAnswer":120},"What sound IF and AM/FM demodulation options are provided?",{"text":121,"@type":113},"They include sound IF (SIF) input for a single reference QSS mode with PLL control, an SIF AGC detector and QSS mixer, plus AM demodulation without extra reference circuits.","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},561233,1791858270,{"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":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962088121634,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","INTEGRATED CIRCUITS  \nDATA SHEET  \nTDA9817; TDA9818  \nSingle/multistandard VIF/SIF-PLLand FM-PLL/AM demodulators  \nPreliminary specification Supersedes data of 1997 May 12 File under Integrated Circuits, IC02  \n2001 Oct 19  \nSingle/multistandard VIF/SIF-PLL and FM-PLL/AM demodulators  \nTDA9817; TDA9818  \nFEATURES  \n• 5 V supply voltage  \n• Applicable for Intermediate Frequencies (IFs) of  \n38.9, 45.75 and 58.75 MHz  \n• Gain controlled wide band Video IF (VIF) amplifier (AC-coupled)  \n• True synchronous demodulation with active carrier regeneration (very linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response)  \n• Robustness for over-modulation better than 105% due to gated phase detector at L/L accent standard and PLL-bandwidth control at negative modulated standards  \n• Voltage Controlled Oscillator (VCO) frequency switchable between L and L accent (alignment external) picture carrier frequency  \n• VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for B/G, peak white detector for L; signal controlled reaction time for L  \n• Tuner AGC with adjustable TakeOver Point (TOP)  \n• Automatic Frequency Control (AFC) detector without extra reference circuit  \n• AC-coupled limiter amplifier for sound intercarrier signal  \n• Alignment-free FM Phase-Locked Loop (PLL) demodulator with high linearity  \n• Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode (PLL controlled); SIF AGC detector for gain controlled SIF amplifier; single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode  \n• AM demodulator without extra reference circuit  \n• Stabilizer circuit for ripple rejection and to achieve constant output signals  \n• ElectroStatic Discharge (ESD) protection for all pins.  \nGENERAL DESCRIPTION  \nThe TDA9817 is an integrated circuit for single standard vision IF signal processing and FM demodulation. The TDA9818 is an integrated circuit for multistandard vision IF signal processing, sound AM and FM demodulation.  \nORDERING INFORMATION  \n\n| TYPE NUMBER | PACKAGE |  |  |\n| --- | --- | --- | --- |\n|  | NAME | DESCRIPTION | VERSION |\n| TDA9817 | SDIP24 | plastic shrink dual in-line package; 24 leads (400 mil) | SOT234-1 |\n| TDA9817T | SO24 | plastic small outline package; 24 leads; body width 7.5 mm | SOT137-1 |\n| TDA9817TS | SSOP24 | plastic shrink small outline package; 24 leads; body width 5.3 mm | SOT340-1 |\n| TDA9818 | SDIP24 | plastic shrink dual in-line package; 24 leads (400 mil) | SOT234-1 |\n| TDA9818T | SO24 | plastic small outline package; 24 leads; body width 7.5 mm | SOT137-1 |\n| TDA9818TS | SSOP24 | plastic shrink small outline package; 24 leads; body width 5.3 mm | SOT340-1 |\n\n2001 Oct 19 2  \nSingle/multistandard VIF/SIF-PLL and FM-PLL/AM demodulators  \nTDA9817; TDA9818  \nQUICK REFERENCE DATA  \n\n| SYMBOL | PARAMETER | CONDITIONS | MIN. | TYP. | MAX. | UNIT |\n| --- | --- | --- | --- | --- | --- | --- |\n| VP | supply voltage |  | 4.5 | 5 | 5.5 | V |\n| IP | supply current |  | 76 | 90 | 104 | mA |\n| Vi(VIF)(rms) | vision IF input signal voltage sensitivity (RMS value) | −1 dB video at output | − | 60 | 100 | µV |\n| Vo(CVBS)(p-p) | video output signal voltage (peak-to-peak value) |  | 0.97 | 1.1 | 1.23 | V |\n| B v(−3dB) | −3 dB video bandwidth on pin CVBS | B/G and L standard;\u003Cbr>CL \u003C 50 pF; RL > 1 kΩ; AC load | 7 | 8 | − | MHz |\n| S/NW | weighted signal-to-noise ratio for video |  | 56 | 60 | − | dB |\n| α IM(1.1) | intermodulation attenuation at ‘blue’ | f = 1.1 MHz | 58 | 64 | − | dB |\n| α IM(3.3) | intermodulation attenuation at ‘blue’ | f = 3.3 MHz | 58 | 64 | − | dB |\n| α H(sup) | suppression of video signal harmonics |  | 35 | 40 | − | dB |\n| Vi(SIF)(rms) | sound IF input signal voltage sensitivity (RMS value) | −3 dB at intercarrier output | − | 50 | 100 | µV |\n| Vo(FM)(rms) | audio output signal voltage for FM (RMS value) | B/G standard; 27 kHz, 54% modulation | 0.4 | 0.5 |","cbCaipawu6zsW92O","https://ap.wps.com/l/cbCaipawu6zsW92O","pdf",208000,41,"English","# Features\n# General Description\n# Ordering Information\n# Quick Reference Data\n# Block Diagram\n# Pinning","[{\"question\":\"What are the main functions of TDA9817 and TDA9818?\",\"answer\":\"TDA9817 processes single standard vision IF and performs FM demodulation. TDA9818 supports multistandard vision IF processing and provides sound AM and FM demodulation.\"},{\"question\":\"How does the demodulation operate in the PLL/synchronous mode?\",\"answer\":\"Both devices support alignment-free FM phase-locked loop (PLL) demodulation with high linearity, including true synchronous demodulation with active carrier regeneration.\"},{\"question\":\"What sound IF and AM/FM demodulation options are provided?\",\"answer\":\"They include sound IF (SIF) input for a single reference QSS mode with PLL control, an SIF AGC detector and QSS mixer, plus AM demodulation without extra reference circuits.\"}]","TDA9817; TDA9818 - Data Sheet | PDF",1791805359,103]