{"id":90669,"date":"2024-10-05T10:00:41","date_gmt":"2024-10-05T08:00:41","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/tda7294-audio-amplifier-sample-circuits\/"},"modified":"2026-04-08T10:48:29","modified_gmt":"2026-04-08T08:48:29","slug":"tda7294-audio-amplifier-sample-circuits","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/tda7294-audio-amplifier-sample-circuits\/","title":{"rendered":"TDA7294 audio amplifier &#8211; sample circuits"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time:<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"90669\" class=\"elementor elementor-90669 elementor-81345\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f1970f2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f1970f2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8106ddf\" data-id=\"8106ddf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a0f1ef5 elementor-widget elementor-widget-text-editor\" data-id=\"a0f1ef5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>It&#8217;s not hard to see that among audio equipment enthusiasts, numerous are also electronics enthusiasts who <strong>design, repair and build<\/strong> amplifiers, preamplifiers, loudspeakers and all the other devices and components that make it possible to play and reproduce music.<br \/>\nAlthough audio amplifiers based on discrete components continue to enjoy unflagging popularity, you can&#8217;t go wrong with audio amplifiers that use a simpler design solution in the form of a monolithic integrated circuit, and that is the <strong>TDA7294<\/strong> &#8211; we&#8217;ll take a look at several audio amplifier designs based on this IC! <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02ca711 elementor-widget elementor-widget-heading\" data-id=\"02ca711\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TDA7294 - general characteristics of the circuit<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-abc9b99 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"abc9b99\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-95b26f1\" data-id=\"95b26f1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-636895c elementor-widget elementor-widget-image\" data-id=\"636895c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"22920_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTA2NDAsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wOVwvMjI5MjBfMV9rd2FkcmF0LmpwZyJ9\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-90640\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat-300x300.jpg 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat-768x768.jpg 768w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/22920_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">TDA7294 - 100W audio amplifier.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f843a65 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"f843a65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.com.pl\/odtwarzacze-mp3-wav-ogg-midi\/22920-tda7294-wzmacniacz-audio-100w-.html\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">CHECK<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1b643e8\" data-id=\"1b643e8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-87e49a5 elementor-widget elementor-widget-text-editor\" data-id=\"87e49a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/botland.com.pl\/odtwarzacze-mp3-wav-ogg-midi\/22920-tda7294-wzmacniacz-audio-100w-.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">The TDA7294<\/a> is a highly innovative <strong>high-power audio amplifier<\/strong> IC with D-MOS technology, launched by the famous European company SGS-THOMSON STMicroelectronics in the 1990s.<br \/>\nlast century.<br \/>\nThe refined design of this amplifier, removes the harsh, cold and hard harmonics known from previous generations of linear integrated power amplifiers and thick-layer integration, and is widely used in HI-FI applications such as home theaters, active sound systems, etc.<br \/>\nThe design of this chip combines the advantages of a bipolar signal processing circuit and a power <a href=\"https:\/\/botland.com.pl\/91-tranzystory-unipolarne-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">MOSFET<\/a>.<br \/>\nThe chip features increased resistance to higher supply voltages, low noise, low distortion and high fidelity sound reproduction.<br \/>\nThe circuit also features stand-by, short-circuit and overheat protection, so its performance is greatly improved.     <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-2791ef1 elementor-widget elementor-widget-spacer\" data-id=\"2791ef1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-91348cf elementor-widget elementor-widget-text-editor\" data-id=\"91348cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The main parameters of this integrated amplifier are:<\/p>\n<ul style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\"><strong>VS<\/strong> (supply voltage) \u00b110\uff5e\u00b140V (maximum voltage without signal \u00b150V);<\/li>\n<li style=\"font-size: 16px;\"><strong>Io<\/strong> (peak output current) 10A;<\/li>\n<li style=\"font-size: 16px;\"><strong>Po<\/strong> (continuous RMS output power) 70W at VS=\u00b135 and Z=8 \u03a9; 70W at \u00b127V and Z = 4\u03a9; 100W at VS=\u00b138V and Z = 8\u03a9; and 100W at VS=\u00b129V and Z = 4\u03a9.<\/li>\n<\/ul>\n<p>The stand-by and mute circuit completely reduces power-on and power-off noise and eliminates overheating of the speaker protection circuit, short-circuit current protection and other features that make its performance excellent.<br \/>\nThis device is suitable for home theater and Hi-Fi amplifiers. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54ee9b6 elementor-widget elementor-widget-heading\" data-id=\"54ee9b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TDA7294 - OCL chip<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c6bb8d elementor-widget elementor-widget-text-editor\" data-id=\"3c6bb8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The circuit diagram of the amplifier in the <strong>OCL<\/strong> circuit is shown in Figure 1.<br \/>\nThe circuit is a two-channel 70-watt power amplifier composed of two TDA7294 chips.<br \/>\nThe circuit contains more than a dozen external components necessary for proper operation.<br \/>\nWhen the supply voltage is \u00b135 V, we can obtain a continuous output power of 70 W into an 8-ohm load.<br \/>\nThis is a very suitable circuit for driving speakers in a room of up to 30m2.<br \/>\nIf the speaker impedance is less than 8 ohms, the supply voltage of the circuit should be reduced accordingly.     <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-596e0f9 elementor-widget elementor-widget-image\" data-id=\"596e0f9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/09\/PPfDRQn1DB.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"PPfDRQn1DB\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTA2NDQsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wOVwvUFBmRFJRbjFEQi5wbmcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"479\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/PPfDRQn1DB.png\" class=\"attachment-large size-large wp-image-90644\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/PPfDRQn1DB.png 988w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/PPfDRQn1DB-300x179.png 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/PPfDRQn1DB-768x459.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Fig.\n1 - schematic of OCL circuit based on TDA7294. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-769685c elementor-widget elementor-widget-heading\" data-id=\"769685c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TDA7294 - BTL chip<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81a9649 elementor-widget elementor-widget-text-editor\" data-id=\"81a9649\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>The BTL circuit<\/strong> is shown in Figure 2.<br \/>\nIt uses two TDA7294 circuits operating in a bridge topology.<br \/>\nThe output power of such a circuit can reach even more than 150W.<br \/>\nIt is well suited for small concert halls.<br \/>\nTo play stereo, a total of four pieces of the TDA7294 chip are needed.<br \/>\nWhen the supply voltage is \u00b125 V, a continuous output power of 150 W can be achieved with an 8-ohm load.<br \/>\nWhen the supply voltage is \u00b135 V, you can get a continuous output power of 180 W into a 16-ohm load.<br \/>\nWhen you use the TDA7294 as a BTL power amplifier, the load must not be less than 8 ohms.       <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37c821c elementor-widget elementor-widget-image\" data-id=\"37c821c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/09\/TmvEYdFdjs.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"TmvEYdFdjs\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTA2NDgsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wOVwvVG12RVlkRmRqcy5wbmcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"376\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/TmvEYdFdjs.png\" class=\"attachment-large size-large wp-image-90648\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/TmvEYdFdjs.png 833w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/TmvEYdFdjs-300x141.png 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/TmvEYdFdjs-768x361.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Fig.\n1 - schematic of BTL circuit based on 2x TDA7294. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e89fcbf elementor-widget elementor-widget-heading\" data-id=\"e89fcbf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TDA7294 - constant-current amplifier<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e67063 elementor-widget elementor-widget-text-editor\" data-id=\"5e67063\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This power amplifier circuit on the <a href=\"https:\/\/botland.com.pl\/odtwarzacze-mp3-wav-ogg-midi\/22920-tda7294-wzmacniacz-audio-100w-.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">TDA7294<\/a> is slightly different from the previous two designs.<br \/>\nIts feedback circuit includes current sampling, voltage summing and negative feedback.<br \/>\nCompared with the traditional constant-voltage power amplifier, the constant-current amplifier has the following advantages:  <\/p>\n<ul>\n<li>The output current of a power amplifier does not depend on the load impedance.<br \/>\nEven if the load is short-circuited, it will not cause the amplifier to overheat. <\/li>\n<li>The output power increases as the load impedance increases.<br \/>\nIncreasing the speaker load within a certain power reserve can ensure the bass power and high-frequency resolution of the original music signal. <\/li>\n<li>The force acting on the speaker&#8217;s voice coil depends solely on the current.<br \/>\nThe use of fluid-controlled oscillations to promote the speaker must be faster than voltage-controlled oscillations so that the input and output impedance of the speaker vibration system can be easily adjusted. <\/li>\n<li>The DC power amplifier circuit is actually a controlled current source controlled by the input signal voltage.<br \/>\nIts internal feedback circuit implements current sampling, summing the negative feedback voltage, and has high input and output impedance.<br \/>\nThe input impedance is high, exactly what the amplifier circuit needs with a constant voltage of the previous stage, which is advantageous for sending the signal voltage to the input of the power amplifier without losses.<br \/>\nThe high output impedance can be reduced by the resistance of shunt R5, which is conducive to adding output signal current to the load.<br \/>\nIn Figure 3, the supply voltage is chosen as \u00b135V, and its magnification is determined by the ratio of the speaker to R6.    <\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbf414a elementor-widget elementor-widget-image\" data-id=\"cbf414a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/09\/UpZtB5BbIY.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"UpZtB5BbIY\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTA2NTIsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wOVwvVXBadEI1QmJJWS5wbmcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"777\" height=\"523\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/UpZtB5BbIY.png\" class=\"attachment-large size-large wp-image-90652\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/UpZtB5BbIY.png 777w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/UpZtB5BbIY-300x202.png 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/09\/UpZtB5BbIY-768x517.png 768w\" sizes=\"(max-width: 777px) 100vw, 777px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Fig.\n3 - DC amplifier on TDA7294. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b36cd25 elementor-widget elementor-widget-heading\" data-id=\"b36cd25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TDA7294 - not just for listening to music!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-becc900 elementor-widget elementor-widget-text-editor\" data-id=\"becc900\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sample circuits presented in this article, based on the TDA7294 chip, provide <strong>very good sound quality<\/strong> whether listening to music or watching movies.<br \/>\nHowever, the applications of this circuit do not end there.<br \/>\nWe can also successfully use it in amplifiers designed for amplifying electric musical instruments, such as guitars, synthesizers and many others.<br \/>\nThe circuit can be used with both solid-state and tube-based preamplifiers &#8211; the latter can be found, for example, in Marshall&#8217;s Valvestate series of guitar amplifiers.   <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The TDA7294 is a versatile audio power amplifier IC with high sound quality &#8211; learn about example designs based on it on the Botland blog.<\/p>\n","protected":false},"author":21,"featured_media":90665,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-90669","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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