{"product_id":"3-wire-electret-microphone-pre-amplifier","title":"3-Wire Electret Microphone Pre-Amplifier","description":"\u003cp\u003eThis\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3-wire microphone pre-amplifier\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed using the low-power, low-noise, and low-distortion\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOPA1692\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaudio operational amplifier, making it ideal for high-performance electret microphone applications. The circuit is optimized for electret microphones that use a 3-wire interface, providing excellent audio quality while maintaining minimal power consumption.\u003c\/p\u003e\n\u003cp\u003eThe primary application of this pre-amplifier is in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewireless microphone systems\u003c\/strong\u003e, where high audio fidelity and long battery life are essential. A typical wireless microphone consists of an electret microphone element, an analog pre-amplifier stage, and a transmission circuit that may use either analog or digital communication methods.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply +\/-5V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Consumption less than 1.5mA (Without LED)\u003c\/li\u003e\n\u003cli\u003eMaximum Sound Level Pressure SPL 120dB\u003c\/li\u003e\n\u003cli\u003eOn Board Power LED\u003c\/li\u003e\n\u003cli\u003eBandwidth 20Hz to 20Khz\u003c\/li\u003e\n\u003cli\u003eGain 11.79 V\/V or 21.43 dB\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions: 25.88 x 13.34 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConnections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCN1: Pin 1 = +5V DC, Pin 2 = GND, Pin 3 = -5V\u003c\/li\u003e\n\u003cli\u003eCN2: Pin 1 = Audio Output, Pin 2 = GND\u003c\/li\u003e\n\u003cli\u003eD1: Power LED\u003c\/li\u003e\n\u003cli\u003eMIC: Pin 1 = +5V, Pin Signal, Pin 3 = GND\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47186769805484,"sku":"A124","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/A124A.jpg?v=1789125462","url":"https:\/\/dotfry.com\/products\/3-wire-electret-microphone-pre-amplifier","provider":"dotfry","version":"1.0","type":"link"}