{"product_id":"adafruit-stereo-i2s-3w-amplifier-breakout-dual-max98357a-ada6513","title":"Adafruit Stereo I2S 3W Amplifier Breakout - Dual MAX98357A","description":"\u003cstyle type=\"text\/css\"\u003e.product-info-tutorial{margin-bottom:20px;}.product-tutorial-img-container{width:20%;}.product-tutorial-img-container img{margin:0;}\u003c\/style\u003e\n\u003c!--?xml version=\"1.0\" standalone=\"yes\"?--\u003e\n\u003csection id=\"description\" class=\"prod-accordion-content prod-accordion-content-description mobile-text-wrapper\"\u003e\n\u003cdiv class=\"tab-heading-row\"\u003e\n\u003ch2 id=\"tab-description-heading\"\u003eDescription\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tab-description-content\" class=\"panel-collapse collapse in\"\u003e\n\u003cp\u003eListen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the \u003ca href=\"https:\/\/www.adafruit.com\/category\/105\" target=\"\"\u003eRaspberry Pi\u003c\/a\u003e or any other microcontroller with I2S output! If you're looking for an easy and low cost way to get your digital sound files bumpin' then the\u003cstrong\u003e Stereo MAX98357A I2S Amp Breakout \u003c\/strong\u003eis for you. It takes standard I2S digital stereo audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact amplified sound, it takes 2 breakouts (I2S DAC + Amp) and combines them into one.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003eStereo MAX98357A\u003c\/strong\u003e takes all the audio goodness you know and doubles up on it. With an additional terminal block and MAX chip your audio projects get to be heard in stereo as it now has separate left and right channels.\u003c\/p\u003e\n\u003cp\u003eI2S (not to be confused with I2C) in a digital sound protocol that is used on circuit boards to pass audio data around. Many high end chips and processors manage all of the audio in digital I2S format. Then, to input or output data, three or four pins are used (data in, data out, bit clock and left-right channel select). Usually, for audio devices, there's a DAC chip that will take I2S in and convert it to analog that can drive a headphone.\u003c\/p\u003e\n\u003cp\u003eThis small stereo amplifier is surprisingly powerful - able to deliver 3.2 Watts of power into each 4 ohm impedance speaker (5V power @ 10% THD). Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, it's incredibly efficient - 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.\u003c\/p\u003e\n\u003cp\u003eThe audio input is I2S standard, you can use 3.3V or 5V logic data. The outputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground. The output is a ~300KHz 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.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eThere's a Gain pin that can be manipulated to change the gain. By default, the amp will give you 9dB of gain. By connecting a pullup or pull down resistor, or soldering the on-board jumper, the Gain pin can be set up to give 3dB, 6dB, 9dB, 12dB or 15dB.\u003c\/p\u003e\n\u003cp\u003eWorks great with Raspberry Pi, Arduino, ESP32 and any other microcontroller or microcomputer with I2S audio outputs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power per channel: 3.2W at 4Ω, 10% THD, 1.8W at 8Ω, 10% THD, with 5V supply\u003c\/li\u003e\n\u003cli\u003ePSRR: 77 dB typ @ 1KHz\u003c!--EndFragment--\u003e\n\u003c\/li\u003e\n\u003cli\u003eI2S sample rates from 8kHz to 96kHz\u003c\/li\u003e\n\u003cli\u003eNo MCLK required\u003c\/li\u003e\n\u003cli\u003eFive pin-selectable gains: 3dB, 6dB, 9dB, 12dB, 15dB\u003c\/li\u003e\n\u003cli\u003eExcellent click-and-pop suppression\u003c\/li\u003e\n\u003cli\u003eThermal shutdown protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes as an assembled and tested breakout board with pre-soldered terminal blocks, with a small piece of optional header. Some soldering is required to attach the header.\u003c!--EndFragment--\u003e  \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-max98357-i2s-class-d-mono-amp\" target=\"\"\u003eCheck out the tutorial for schematics, diagrams, examples and more!\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection id=\"technical-details\" class=\"prod-accordion-content prod-accordion-content-technical-details mobile-text-wrapper\"\u003e\n\u003cdiv class=\"tab-heading-row\"\u003e\n\u003ch2 id=\"tab-technical-details-heading\"\u003eTechnical Details\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tab-technical-details-content\" class=\"panel-collapse collapse in\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-Supply Operation (2.5V to 5.5V)\u003c\/li\u003e\n\u003cli\u003e3.2W Output Power into 4Ω at 5V\u003c\/li\u003e\n\u003cli\u003e2.4mA Quiescent Current\u003c\/li\u003e\n\u003cli\u003e92% Efficiency (RL = 8Ω, P_OUT = 1W)\u003c\/li\u003e\n\u003cli\u003e25μv RMS Output Noise (AV = 15dB)\u003c\/li\u003e\n\u003cli\u003eLow 0.015% THD+N at 1kHz\u003c\/li\u003e\n\u003cli\u003eNo MCLK Required\u003c\/li\u003e\n\u003cli\u003eSample Rates of 8kHz to 96kHz\u003c\/li\u003e\n\u003cli\u003eSupports Left, Right, or (Left\/2 + Right\/2) Output\u003c\/li\u003e\n\u003cli\u003eSophisticated Edge Rate Control Enables Filterless Class D Outputs\u003c\/li\u003e\n\u003cli\u003e77dB PSRR at 1kHz\u003c\/li\u003e\n\u003cli\u003eLow RF Susceptibility Rejects TDMA Noise from GSM Radios\u003c\/li\u003e\n\u003cli\u003eExtensive Click-and-Pop Reduction Circuitry\u003c\/li\u003e\n\u003cli\u003eRobust Short-Circuit and Thermal Protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProduct Dimensions: 25.5mm x 19.0mm x 11.8mm \/ 1.0\" x 0.7\" x 0.5\"\u003c\/p\u003e\n\u003cp\u003eProduct Weight: 3.5g \/ 0.1oz\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/product-files\/6513\/P6513+MAX98357A-MAX98357B.pdf\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003cimg src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2011_65_EU.svg\" alt=\"RoHS 2 2011 65 EU Compliant\" width=\"145\" height=\"80\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003cimg src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2015_863_EU.svg\" alt=\"RoHS 2 2015 863 EU Compliant\" width=\"145\" height=\"80\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection id=\"learn\" class=\"prod-accordion-content prod-accordion-content-learn mobile-text-wrapper\"\u003e\n\u003cdiv class=\"tab-heading-row\"\u003e\n\u003ch2 id=\"tab-learn-heading\"\u003eLearn\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tab-learn-content\" class=\"panel-collapse collapse in\"\u003e\n\u003cdiv class=\"learn-guides-list\"\u003e\n\u003cdiv class=\"product-learn-guide learn-guide-primary\"\u003e\n\u003cdiv\u003e\u003ca class=\"product-learn-guide-img-container\" href=\"https:\/\/learn.adafruit.com\/adafruit-max98357-i2s-class-d-mono-amp\"\u003e \u003cimg src=\"https:\/\/cdn-learn.adafruit.com\/guides\/images\/000\/001\/328\/medium640\/thump.jpg\" alt='Blue circuit board labeled \"MAX98357A I2S Amp\" with pins for LRC, DIN, BCLK, GAIN, and GND. Features various resistors and capacitors. 2 mounting holes.' class=\"img-responsive\"\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-learn-guide-text\"\u003e\n\u003cdiv class=\"product-learn-guide-title\"\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-max98357-i2s-class-d-mono-amp\"\u003e Primary Guide: Adafruit MAX98357 I2S Class-D Amps - Stereo and Mono \u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-learn-guide-tagline\"\u003eAdd digital-quality audio with a class D amplifier for easy sound!\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ca class=\"all-guides-link\" href=\"https:\/\/learn.adafruit.com\/products\/6513\/guides\"\u003e\n\u003cdiv\u003eSee All Guides \u003ci class=\"fa fa-external-link\"\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":42659649028178,"sku":"ADA6513","price":23.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/6513-00.jpg?v=1788070938","url":"https:\/\/www.pakronics.co.nz\/products\/adafruit-stereo-i2s-3w-amplifier-breakout-dual-max98357a-ada6513","provider":"Pakronics®","version":"1.0","type":"link"}