{"id":120243,"date":"2023-07-03T17:51:35","date_gmt":"2023-07-03T12:21:35","guid":{"rendered":"https:\/\/www.electronicsforu.com\/?p=120243"},"modified":"2024-09-16T14:42:20","modified_gmt":"2024-09-16T09:12:20","slug":"simple-stereo-fm-radio-receiver-circuit","status":"publish","type":"post","link":"https:\/\/www.electronicsforu.com\/electronics-projects\/simple-stereo-fm-radio-receiver-circuit","title":{"rendered":"Simple Stereo FM Radio Receiver Circuit"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"155\" height=\"155\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/10\/efy-tested-1.jpg\" alt=\"efy tested\" class=\"wp-image-107020\" srcset=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/10\/efy-tested-1.jpg 155w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/10\/efy-tested-1-150x150.jpg 150w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/10\/efy-tested-1-50x50.jpg 50w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/10\/efy-tested-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 155px) 100vw, 155px\" \/><\/figure><\/div>\n\n\n<p>There are many AM\/FM receiver circuits available, but the difficult part is making the coils and tuning the circuits. Without their proper construction and alignment, the circuits do not perform well. This article describes <strong>how to build a simple stereo FM Radio Receiver Circuit<\/strong> without tuning components such as inductors, variable capacitors, and ceramic IF filters.<\/p>\n\n\n\n<p>Previously we designed the <a href=\"https:\/\/www.electronicsforu.com\/electronics-projects\/simple-fm-receiver\">FM Receiver Circuit <\/a>with tuning components.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">POC Video Tutorial In English:<\/h3>\n\n\n\n<center><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/rIn73fpV7vQ\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/center.\n\n\n\n<h3 class=\"wp-block-heading\">POC Video Tutorial In Hindi:<\/h3>\n\n\n\n<center><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/iF9xPJW1rHw\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/center>\n\n\n\n<p>The FM receiver is capable of receiving 76 to 108MHz FM band with stereo output having good sensitivity and performance. The output is capable of driving a 32\u03a9 speaker directly, which eliminates additional audio headphone amplifiers.<\/p>\n\n\n\n<p>The heart of the circuit is based on IC HEX3653\/GS1299\/RDA7088. We can use any one of them. All three ICs have the same pinout and function and come in a SOP16 package with a 1.27mm lead pitch. You can check the <a href=\"https:\/\/download.datasheets.com\/pdfs\/2013\/3\/19\/1\/8\/39\/168\/rda_\/manual\/rda7088.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">RDA7088 Datasheet<\/a>.<\/p>\n\n\n\n<p>We can either use a pitch converter breakout board for ease of using a breadboard, Veroboard, or dot board with a 2.54mm pitch. We can also use a SOIC-16 ZIF socket adaptor with a 2.54mm pitch for easy and quick experimentation.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"507\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Stereo-FM-Radio-Receiver-Circuit-on-Breadboard-1.jpg\" alt=\"Stereo FM Radio Receiver Circuit on Breadboard\" class=\"wp-image-122397\" srcset=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Stereo-FM-Radio-Receiver-Circuit-on-Breadboard-1.jpg 500w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Stereo-FM-Radio-Receiver-Circuit-on-Breadboard-1-493x500.jpg 493w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Stereo-FM-Radio-Receiver-Circuit-on-Breadboard-1-50x50.jpg 50w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/Stereo-FM-Radio-Receiver-Circuit-on-Breadboard-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Fig. 1: Stereo FM Radio Receiver Circuit on Breadboard<\/figcaption><\/figure><\/div>\n\n\n<p>Fig. 1 shows the Stereo FM Radio Receiver Circuit on Breadboard. The components required to build the radio circuit are mentioned in the below table.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td colspan=\"3\"><strong>Components Required to Build Stereo FM Radio Receiver Circuit<\/strong><\/td><\/tr><tr><td><strong>Ref.<\/strong><\/td><td><strong>Descriptions of the components<\/strong><\/td><td><strong>Qty<\/strong><\/td><\/tr><tr><td>U1<\/td><td>RDA7088, HEX3653, or GS1299 in SOP16 package<\/td><td>1<\/td><\/tr><tr><td>Y1<\/td><td>32.768kHz crystal (2mm x 6mm or 3mm x 8mm)<\/td><td>1<\/td><\/tr><tr><td>R1<\/td><td>Resistor 10k\u03a9 , 250mW (CFR 5%)<\/td><td>1<\/td><\/tr><tr><td>C3, C5<\/td><td>Capacitor 100nF<\/td><td>2<\/td><\/tr><tr><td>Antenna<\/td><td>75cm SWG#22<\/td><td>1<\/td><\/tr><tr><td>C1, C2<\/td><td>Capacitor electrolytic, 100\u00b5F\/16V<\/td><td>2<\/td><\/tr><tr><td>L1<\/td><td>Inductor 100nH<\/td><td>1<\/td><\/tr><tr><td>C6<\/td><td>Capacitor 24pF<\/td><td>1<\/td><\/tr><tr><td><\/td><td>Breadboard or Veroboard<\/td><td>1<\/td><\/tr><tr><td><\/td><td>SOP16 1.27mm to 2.54mm adaptor, or ZIF socket<\/td><td>1<\/td><\/tr><tr><td><\/td><td>Jumper wires<\/td><td><\/td><\/tr><tr><td><\/td><td>3V DC or AMS1117-3.3<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"300\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/FM-Radio-Receiver-Component.jpg\" alt=\"FM RDA7088 IC and SOP16 Package\" class=\"wp-image-122393\" style=\"width:550px;height:300px\" srcset=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/FM-Radio-Receiver-Component.jpg 550w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/FM-Radio-Receiver-Component-500x273.jpg 500w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/FM-Radio-Receiver-Component-50x27.jpg 50w, https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2023\/07\/FM-Radio-Receiver-Component-100x55.jpg 100w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><figcaption class=\"wp-element-caption\">Fig. 2: FM RDA7088 IC and SOP-16 Package<\/figcaption><\/figure>\n\n\n\n<p>As can be seen, the radio receiver requires very few external components, yet supports the worldwide frequency band of 76 to 108MHz. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"fm-radio-receiver-circuit-features\"><strong>FM Radio Receiver Circuit &#8211; Features<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Less than 5-second full band seek time<\/li>\n\n\n\n<li>Low-cost 32.768kHz crystal for RCLK<\/li>\n\n\n\n<li>Digital automatic gain control (AGC)<\/li>\n\n\n\n<li>Direct 32\u03a9 speaker driving<\/li>\n\n\n\n<li>Simple SOP16 package<\/li>\n\n\n\n<li>1.8V to 3.6V DC voltage operation<\/li>\n\n\n\n<li>Low current consumption of 17mA at 3V<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"stereo-fm-radio-receiver-circuit-diagram\"><strong>Stereo FM Radio Receiver Circuit Diagram<\/strong><\/h2>\n\n\n\n<div class=\"mepr_error\"><div class=\"locked-content\">\n<b>EFY++ CONTENT: ACCESS TO THIS CONTENT IS FREE! BUT YOU NEED TO BE A REGISTERED USER.<\/b><\/p>\n<p>Oops! This is an EFY++ article, which means it's our Premium Content. You need to be a Registered User of our website to read its complete content.<\/p>\n<p><b>Good News: <\/b>You can register to our website for FREE! <a href=\"https:\/\/www.electronicsforu.com\/plans\/subscription-plans\" target=\"_blank\" rel=\"noopener\">CLICK HERE<\/a> to register now.<\/p>\n<p><b>Already a registered member? <\/b>If YES, then simply login to you account below. 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Without their proper construction and alignment, the circuits do not perform well. This article describes how to build a simple stereo FM Radio Receiver Circuit without tuning components such as inductors, variable capacitors, and ceramic IF [&hellip;]<\/p>\n","protected":false},"author":127871,"featured_media":122415,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,23,776,3713],"tags":[1985,110],"class_list":{"0":"post-120243","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-electronics-projects","8":"category-hardware-diy","9":"category-prototypes","10":"category-premium","11":"tag-diy-projects","12":"tag-electronics-projects"},"_links":{"self":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/120243","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/users\/127871"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/comments?post=120243"}],"version-history":[{"count":1,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/120243\/revisions"}],"predecessor-version":[{"id":144904,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/120243\/revisions\/144904"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media\/122415"}],"wp:attachment":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media?parent=120243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/categories?post=120243"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/tags?post=120243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}