{"product_id":"pam8302a-cjmcu-832-2-5w-class-d-audio-amplifier-module","title":"PAM8302 2.5W Class D Audio Amplifier Module – CJMCU-832","description":"\u003ch2\u003ePAM8302 2.5W Single-Channel Class D Audio Power Amplifier Module (CJMCU-832)\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY electronics projects with the \u003cstrong\u003eCJMCU-832 PAM8302A Audio Power Amplifier Module\u003c\/strong\u003e — a compact, high-efficiency Class D amplifier board ideal for makers, hobbyists, and engineers. Built around the PAM8302A IC, this SMD module delivers up to \u003cstrong\u003e2.5W of clean audio output\u003c\/strong\u003e from a wide supply voltage range, making it perfect for Arduino, Raspberry Pi, and other microcontroller-based audio applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.5W Output Power\u003c\/strong\u003e – Punchy, efficient single-channel Class D amplification for speakers and audio projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Supply Voltage:\u003c\/strong\u003e 2V – 5.5V — compatible with 3.3V and 5V logic systems including Arduino, ESP32, and Raspberry Pi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD Package\u003c\/strong\u003e – Compact form factor for easy integration into space-constrained builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature Range:\u003c\/strong\u003e -40°C to +85°C — reliable across demanding environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Efficiency Class D Design\u003c\/strong\u003e – Minimal heat generation, maximizing battery life in portable projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals\u003c\/strong\u003e – Clean build with no hazardous substances declared\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDevelopment Board Ready\u003c\/strong\u003e – Breakout-style layout with accessible pads for quick prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePAM8302A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5W (single channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Module\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi audio output circuits\u003c\/li\u003e\n  \u003cli\u003ePortable Bluetooth speaker prototypes\u003c\/li\u003e\n  \u003cli\u003eDIY intercom and sound alert systems\u003c\/li\u003e\n  \u003cli\u003eEmbedded electronics and maker projects\u003c\/li\u003e\n  \u003cli\u003eComputer and desktop audio amplification experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does the PAM8302 CJMCU-832 amplifier module operate at?\u003c\/h4\u003e\n\u003cp\u003eA: The PAM8302A CJMCU-832 module operates across a supply voltage range of \u003cstrong\u003e2V to 5.5V\u003c\/strong\u003e, making it fully compatible with 3.3V and 5V development boards such as Arduino, ESP32, STM32, and Raspberry Pi without requiring additional voltage regulation.\u003c\/p\u003e\n\u003ch4\u003eQ: What speaker impedance is recommended for this Class D amplifier module?\u003c\/h4\u003e\n\u003cp\u003eA: The PAM8302A is optimized for use with \u003cstrong\u003e4Ω or 8Ω speakers\u003c\/strong\u003e. For best audio output quality and efficiency, a 4Ω speaker is recommended when running at 5V supply voltage to achieve the rated 2.5W output power.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module suitable for battery-powered projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the high-efficiency Class D design of the PAM8302A minimizes power dissipation, making this module an excellent choice for battery-powered and portable audio applications where energy efficiency is important.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I connect this module to an Arduino or Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Connect the module's VIN and GND pins to your board's 3.3V or 5V supply, feed your audio signal into the IN+ and IN- pins, and connect a compatible speaker to the output pads. No external components are needed for basic operation, making it ideal for rapid prototyping.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does the PAM8302 CJMCU-832 amplifier module operate at?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PAM8302A CJMCU-832 module operates across a supply voltage range of 2V to 5.5V, making it fully compatible with 3.3V and 5V development boards such as Arduino, ESP32, STM32, and Raspberry Pi without requiring additional voltage regulation.\"}}, {\"@type\": \"Question\", \"name\": \"What speaker impedance is recommended for this Class D amplifier module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PAM8302A is optimized for use with 4Ω or 8Ω speakers. 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