{"title":"Audio","description":"","products":[{"product_id":"dual-40w-audio-power-amplifier-with-mute","title":"Dual 40W Audio Power Amplifier with Mute","description":"\u003cp\u003e\u003cbr\u003eThe stereo audio amplifier project shown here is capable of delivering typically 40W per channel continuous average output power into an 8Ω load with less than 0.1% (THD+N). The project is built using an LM4766 chip from Texas Instruments, The performance of the LM4766, utilizing its Self-Peak Instantaneous Temperature (°Ke) (Spike) Protection Circuitry, places it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA).\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply +\/-30V DC for 40W Output, Power Supply Range Dual 10V to 32V DC (+\/-10V to +\/-32V) @ 4Amps\u003c\/li\u003e\n\u003cli\u003eLoad 8 Ohms Speaker\u003c\/li\u003e\n\u003cli\u003eQuiet Fade-In\/Out Mute Switch\u003c\/li\u003e\n\u003cli\u003eTHD+N at 1kHz at 2 x 40W Continuous Average Output Power Into 8Ω 0.1% (Max)\u003c\/li\u003e\n\u003cli\u003eFrequency Response 20 to 20Khz\u003c\/li\u003e\n\u003cli\u003eInput Level Signal 1V Peak to Peak\u003c\/li\u003e\n\u003cli\u003eInput Impedance 47K Ohms\u003c\/li\u003e\n\u003cli\u003eGain 21\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 93.35 x 81.92 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319449309356,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/dual40waudio_1.jpg?v=1780054390"},{"product_id":"pre-amplifier-for-mems-microphone","title":"Pre-Amplifier for MEMS Microphone","description":"\u003cp\u003e\u003cbr\u003eThis is a low-cost, small-size audio pre-amplifier for MEMS microphone, OPAMP-based circuit amplifies the low-level analog signal coming from MEMS microphone to the desired level required for the next stage which is an audio amplifier, basically microphone level to line level. Resistor R4 and R7 are used to generate a voltage reference to bias the input common-mode voltage of the op-amp at VCC\/2, C7, C8, and R7 help to reduce power supply noise.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply 3.3V\u003c\/li\u003e\n\u003cli\u003eVery Low Noise Output\u003c\/li\u003e\n\u003cli\u003eOn-Board Power LED\u003c\/li\u003e\n\u003cli\u003eDual Microphone Option (Onboard or External Microphone)\u003c\/li\u003e\n\u003cli\u003eThe OPAMP gain is set to 32 (Gain = 1+R2\/R3)\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 27.78 x 14.29 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319450325164,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/memsmike_1.jpg?v=1780054417"},{"product_id":"audio-line-driver-using-drv135-with-balanced-output","title":"Audio Line Driver using DRV135 with Balanced Output","description":"\u003cp\u003eThe project presented here is a differential output amplifier that converts a single-ended audio signal input to a balanced output pair. This balanced audio project consists of high-performance OPAMPS with on-chip precision resistors.\u003c\/p\u003e\n\u003cp\u003eThe project presented here is a differential output amplifier that converts a single-ended audio signal input to a balanced output pair. This balanced audio project consists of high-performance OPAMPS with on-chip precision resistors. They are fully specified for high-performance audio applications and have excellent AC specifications, including low distortion (0.0005% at 1 kHz) and high slew rate (15 V\/µs). The board is based on DRV135 from Texas Instruments.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-Ended Audio Input and Balanced Output\u003c\/li\u003e\n\u003cli\u003eLow Distortion: 0.0005% at f = 1 kHz\u003c\/li\u003e\n\u003cli\u003eWide Output Swing: 17Vrms into 600 Ω\u003c\/li\u003e\n\u003cli\u003eHigh Capacitive Load Drive\u003c\/li\u003e\n\u003cli\u003eHigh Slew Rate: 15 V\/µs\u003c\/li\u003e\n\u003cli\u003eWide Supply Range: ±4.5 V to ±18 V @ 15mA without Load\u003c\/li\u003e\n\u003cli\u003eLow Quiescent Current: ±5.2 mA\u003c\/li\u003e\n\u003cli\u003eCompanion to Audio Differential Line Receivers: INA134\u003c\/li\u003e\n\u003cli\u003eImproved Replacement for SSM2142\u003c\/li\u003e\n\u003cli\u003eImproved Replacement for SSM2142\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319453241516,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/Audioline_3.jpg?v=1780054451"}],"url":"https:\/\/dotfry.com\/collections\/audio.oembed","provider":"dotfry","version":"1.0","type":"link"}