{"product_id":"mini-audioverstarker-pam8403-2x-3w-2-5v-5v","title":"PAM8403 audio amplifier - 2x 3 W stereo, 2.5-5 V","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDigital audio amplifier with two channels, 3 W output power each\u003c\/li\u003e \u003cli\u003eOperating voltage 5 V, powered directly by a standard USB power supply\u003c\/li\u003e \u003cli\u003eInput level up to 1 V, compatible with line-out and headphone outputs of mobile devices and boards\u003c\/li\u003e \u003cli\u003eI2C address 0*48, multiple modules can be operated on one data bus\u003c\/li\u003e \u003cli\u003eShutdown function for power saving and protection circuits against overheating and short circuits\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThe audio amplifier converts digital audio signals into speaker power. With two independent channels of 3 W each, the module is suitable for stereo output in multimedia projects, robotics and real-time applications. Its high level of integration makes it an ideal choice for space-constrained embedded systems.\u003c\/p\u003e \u003cp\u003eThe module operates with a 5 V power supply and can be connected directly to USB power sources. Line-in signals from microcontroller boards or mobile devices are amplified; the input voltage of up to 1 V is sufficient to deliver full power. Shutdown and thermal protection enable efficient, reliable operation without external regulators.\u003c\/p\u003e \u003cp\u003eApplications include audio playback in robots, music projects and interactive installations. A robot project with audio output, such as a voice output module that plays notification messages, can connect the amplifier with just a few wires. I2C addressing allows multiple modules to be operated on a single data bus, for example under the control of a central microcontroller.\u003c\/p\u003e \u003cp\u003eTwo passive speakers up to 8 Ω can be connected; the input impedance should be at least 10 kΩ to prevent signal losses. A simple power supply is sufficient; no additional switching power supply is required.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThis module is intended exclusively for building prototypes and for testing and development purposes, not for permanent installation in household appliances or mains-powered systems. When operating with speakers, observe the overtemperature shutdown limits and ensure adequate heat dissipation. Work on the power supply, or any uncertainty regarding commissioning, should be clarified with a qualified electrician.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x Mini audio amplifier PAM8403 - 2x 3W, 2.5V - 5V\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66045655515485,"sku":"F23107658","price":1.31,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/mini-audioverstaerker-pam8403-2x-3w-25v-5v-funduino-1354257.png?v=1791492278","url":"https:\/\/funduino.com\/en\/products\/mini-audio-amplifier-pam8403-2x-3w-2-5v-5v","provider":"Funduino","version":"1.0","type":"link"}