{"product_id":"3pcs-cjmcu-832-pam8302-single-channel-class-d-audio-power-amplifier-development-board-for_1106076","title":"3pcs CJMCU-832 PAM8302 Single Channel Class D Audio Power Amplifier Development Board For","description":"\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003eThis super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic \"LM386\" amps! CJMCU\u003cbr\u003e\u003cbr\u003eThe A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin  to ground. The output is \"Bridge Tied\" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly. CJMCU\u003cbr\u003e\u003cbr\u003eComes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach\/detach your speaker. You will be ready to rock in 15 minutes!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003e- Output Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply\u003cbr\u003e- 50dB PSRR at 1KHz\u003cbr\u003e- Filterless design, with ferrite bead + capacitors on output.\u003cbr\u003e- Fixed 24dB gain, onboard trim potentiometer for adjusting input volume.\u003cbr\u003e- Thermal and short-circuit\/over-current protection\u003cbr\u003e- Low current draw: 4mA quiescent and 1uA in shutdown mode\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003eSpeaker is not included, use any 4 ohm or greater impedance speaker.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size:14px;\"\u003e3 x Audio Power Amplifier\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv style=\"text-align: center;\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cdiv style=\"text-align: center;\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e,,","brand":"Banggood","offers":[{"title":"Default Title","offer_id":31968914636938,"sku":"U2I-BG-1106076","price":1878.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0300\/1588\/1354\/products\/63f68e8f-f51e-0290-f1b2-64307d04964a.jpg?v=1580171365","url":"https:\/\/shop2india.com\/products\/3pcs-cjmcu-832-pam8302-single-channel-class-d-audio-power-amplifier-development-board-for_1106076","provider":"SHOP2INDIA GATEWAY","version":"1.0","type":"link"}