{"product_id":"tda7297-bluetooth-digital-amplifier-board-bluetooth-5-0-amplifier-board-diy","title":"TDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY","description":"\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eFunction type: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAudio amplification\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eChip type: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eClass A and B\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eChip model: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eTDA7297\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eBluetooth version:\t5.0\t\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSupply voltage: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eDC12V – 18V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eNumber of channels: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eStereo * 2\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eOutput power: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e15W * 2\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eOutput impedance: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e4-8Ω\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eWorking temperature: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e0-70 ℃\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eSize: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e70x65x18mm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eWeight: \u003c\/span\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e65g\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePrompt:\t\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eWhat's wrong with Bluetooth?\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAnswer: when the Bluetooth indicator is working normally, it flashes regularly. If it is on or off for a long time, there may be a problem with the Bluetooth module. You can contact us to deal with it.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eThe mobile phone can be connected but the laptop or desktop computer can't be connected?\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAnswer: if the mobile phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board.\u003cbr\u003eMaybe there is a problem with the Bluetooth driver of the computer. The version is too old or the file is lost. It is recommended to uninstall it first and then install the latest driver from the new version.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eWhen the volume is turned up, the sound will jam, intermittently. When the volume is turned down, it can be played for a long time?\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAnswer: reason 1: because the power supply is too small, the total output power of this power amplifier board is 200W. When selecting the power supply, the recommended voltage is 12V and the current is above 18a.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eReason 2: if there is no problem with the power supply, it may be that the power of the speaker is too small. For example, if the output is 200W, but a 5W speaker is connected.\u003cbr\u003eIf the volume is turned up, there will be a jamming phenomenon, and the speaker may be burned.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e4.Noise is too loud when playing music, or there is noise floor when not playing music?\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003eAnswer: The function of the power amplifier board is to amplify the signal. The main source of noise is the radio clutter in the environment generated by the power amplifier board.\u003cbr\u003eSo as long as it is the power amplifier board, there will be noise. It is possible that the sound source is noisy, normal mobile phones and MP3s will not. Most of them are on some old front-end boards, which are not compatible with our amplifier board.\u003cbr\u003eYou can add audio isolators or coupling capacitors to test. Can't be removed.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003ePackage:\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\t\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e1* TDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-wrap-mode: nowrap;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40542069260417,"sku":"XH-A272","price":14.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/855b1cf112ff6ba2c5702d955a9bcff9.jpg?v=1763111573","url":"https:\/\/www.lilly-electronics.com\/fr\/products\/tda7297-bluetooth-digital-amplifier-board-bluetooth-5-0-amplifier-board-diy","provider":"Lilly Electronics","version":"1.0","type":"link"}