[{"data":1,"prerenderedAt":556},["ShallowReactive",2],{"schematic:lm386-audio-amplifier-gain-20:es":3},{"schematic":4,"title":19,"shortDescription":22,"proseSource":514,"localizationFallbackIssues":515,"related":516,"confirmations":515},{"schemaVersion":5,"governance":6,"slug":18,"title":19,"cluster":20,"tier":21,"shortDescription":22,"deepTechnicalOverview":23,"theoryOfOperation":24,"keySpecifications":25,"applications":47,"gotchas":52,"formulas":72,"bom":115,"interactiveElements":163,"circuitJson":212,"svg":510,"relatedSchematicSlugs":511,"relatedComponentSlugs":512,"relatedBoardSlugs":513},"1.0",{"publication":7,"verification":10,"provenance":15},{"status":8,"publishedDate":9},"published","2026-10-18",{"status":11,"verifiedDate":9,"verifiedBy":12,"checklist":13},"verified","Claude (draft and CAD redraw); Gemini (independent documentary review against TI SNAS545D); owner publication GO; no bench or native-human claim",{"schema":14,"technicalFacts":14,"relationships":14,"sources":14},true,{"sourceUrls":16},[17],"https:\u002F\u002Fwww.ti.com\u002Flit\u002Fds\u002Fsymlink\u002Flm386.pdf","lm386-audio-amplifier-gain-20","Amplificador de audio LM386 con ganancia 20","audio_amplifiers","Tier 1","El amplificador para altavoz con el mínimo de componentes de la hoja de datos LM386 de TI: un potenciómetro de volumen, el LM386 con su ganancia interna de 20, un condensador de salida y una red RC que excitan un altavoz de 8 Ω desde una pila de 9 V.","Es la figura 9-1 de la hoja de datos LM386 de Texas Instruments (SNAS545D), la forma de excitar un altavoz con el LM386 usando el menor número de componentes. La ganancia está fijada internamente en 20, así que no hacen falta componentes de realimentación; las entradas están referidas a masa, de modo que la señal puede ir directamente a la patilla 3 a través del control de volumen; y la salida se polariza sola a la mitad de la alimentación, así que un solo condensador la acopla al altavoz. Como alimentación se dibuja una pila de 9 V; cualquier alimentación dentro del rango de la hoja de datos, de 5 V a 12 V, funciona igual. TI indica que sus circuitos de aplicación no forman parte de la especificación del componente y que el diseño final debe validarse.","### 1. Entrada y volumen\nLa señal de entrada VIN llega al extremo superior de RV1, un potenciómetro de 10 kΩ cuyo otro extremo va a masa. El cursor toma una parte de la señal y la lleva a la patilla 3 (+INPUT). La patilla 2 (−INPUT) está conectada a masa. Dentro del LM386, ambas entradas están polarizadas a masa mediante resistencias de 50 kΩ. La figura 9-1 no incluye condensador de acoplamiento en la entrada; TI indica que añadirlo elimina por completo los problemas de offset de entrada. Mantenga la señal en la patilla 3 entre −0,4 V y +0,4 V, la tensión de entrada máxima absoluta; en este circuito se consigue bajando RV1.\n\n### 2. Ganancia fija de 20\nLas patillas 1 y 8 quedan al aire. En ese estado, la resistencia interna de 1,35 kΩ fija la ganancia de tensión en 20, es decir, 26 dB:\n$$A_V = 20,\\quad 20\\log_{10}(20) \\approx 26\\text{ dB}$$\nUn condensador entre las patillas 1 y 8 subiría la ganancia a 200 (46 dB); este circuito no lo usa.\n\n### 3. Polarización de la salida y acoplamiento al altavoz\nLa etapa de salida se polariza sola a aproximadamente la mitad de la tensión de alimentación, unos 4,5 V con una pila de 9 V. C1 bloquea ese nivel de continua, de modo que no circula corriente continua por el altavoz, y deja pasar la señal de audio. Su terminal positivo mira hacia la patilla 5. Junto con el altavoz de 8 Ω forma un filtro paso alto con una frecuencia de corte calculada de unos 80 Hz:\n$$f_c = \\frac{1}{2\\pi R_L C_1} = \\frac{1}{2\\pi \\cdot 8\\,\\Omega \\cdot 250\\,\\mu\\text{F}} \\approx 80\\text{ Hz}$$\nLas frecuencias por debajo del corte llegan atenuadas al altavoz.\n\n### 4. Red RC en la salida\nC2 (0,05 µF) y R1 (10 Ω) en serie van de la patilla 5 a masa. TI coloca una red así en la salida de la mayoría de los circuitos de aplicación de la hoja de datos sin explicar su función. Una red RC serie de este tipo suele llamarse red de Zobel o de Boucherot: a altas frecuencias, donde la impedancia de la bobina del altavoz aumenta, ofrece al amplificador una carga de unos 10 Ω, lo que ayuda a mantenerlo estable.\n\n### 5. Alimentación\nEl LM386N-1 funciona de 4 V a 12 V y consume 4 mA típicos (8 mA como máximo) sin señal a 6 V. TI recomienda un condensador a GND cerca de la patilla 6; la hoja de datos no indica su valor y la figura 9-1 no lo dibuja.",[26,29,32,35,38,41,44],{"label":27,"value":28},"Tensión de alimentación de funcionamiento","Pila de 9 V, como en el esquema; rango de funcionamiento del LM386N-1 4 V – 12 V (TI §6.5); tabla de diseño 5 V – 12 V (TI, tabla 9-1)",{"label":30,"value":31},"Ganancia de tensión","20 (26 dB) con las patillas 1 y 8 al aire (TI §9.2.1.2.1)",{"label":33,"value":34},"Carga","Altavoz de 8 Ω; tabla de diseño 4 Ω – 32 Ω (TI, tabla 9-1)",{"label":36,"value":37},"Potencia de salida","325 mW típicos, 250 mW mínimos con VS = 6 V, RL = 8 Ω, THD = 10% (LM386N-1); la hoja de datos no especifica la potencia de salida del LM386N-1 a 9 V",{"label":39,"value":40},"Corriente de reposo","4 mA típicos, 8 mA máximos con VS = 6 V, VIN = 0 (TI §6.5)",{"label":42,"value":43},"Tensión de entrada en la patilla 3","de −0,4 V a +0,4 V (máximo absoluto y rango recomendado)",{"label":45,"value":46},"Frecuencia de corte inferior","≈ 80 Hz, calculado con C1 = 250 µF y una carga de 8 Ω; no medido",[48,49,50,51],"Amplificadores de radio AM\u002FFM","Intercomunicadores","Sistemas de sonido de televisores","Salida de altavoz alimentada por pila para proyectos de audio portátiles",[53,58,63,67],{"title":54,"trap":55,"solution":56,"severity":57},"Saturar la entrada","La tensión de entrada máxima absoluta es de ±0,4 V. Una señal de auriculares o de nivel de línea puede ser mayor; aplicada directamente a la patilla 3 puede superar ese límite, y la salida recorta mucho antes de que la entrada lo alcance.","Mantenga RV1 entre la fuente y la patilla 3, como en el esquema, y empiece con el volumen al mínimo; mantenga la señal en la patilla 3 dentro de ±0,4 V.","critical",{"title":59,"trap":60,"solution":61,"severity":62},"Falta el desacoplo de la alimentación","La figura 9-1 no dibuja condensador en la alimentación, pero TI recomienda uno cerca de la patilla 6. Sin él, los cables largos de la pila y el rizado de la alimentación llegan a la salida como zumbido o inestabilidad.","Añada un condensador entre la patilla 6 y GND junto al circuito integrado (la hoja de datos no da el valor) y mantenga cortos los cables del altavoz (TI §10, §11.1).","warning",{"title":64,"trap":65,"solution":66,"severity":62},"C1 montado al revés","La patilla 5 está a aproximadamente la mitad de la alimentación, así que C1 soporta una tensión continua permanente. Un electrolítico montado al revés queda polarizado en inversa.","Monte C1 con el terminal positivo hacia la patilla 5 y el negativo hacia el altavoz, y use una tensión nominal superior a la de alimentación.",{"title":68,"trap":69,"solution":70,"severity":71},"Esperar más ganancia","Con las patillas 1 y 8 al aire la ganancia es solo 20. Una fuente débil, como un micrófono, sonará baja.","Para una ganancia de 200, conecte un condensador de 10 µF entre las patillas 1 y 8 (TI, figura 9-3) y desacople o lleve a masa la entrada no usada, como exige TI §9.2.1.2.2 con ganancia alta.","info",[73,82,102],{"name":30,"latexOrText":74,"description":75,"variables":76},"A_{V(dB)} = 20\\log_{10}(A_V) = 20\\log_{10}(20) \\approx 26\\text{ dB}","Ganancia fijada por la resistencia interna de 1,35 kΩ con las patillas 1 y 8 al aire.",[77],{"symbol":78,"name":79,"typicalValue":80,"unit":81},"A_V","Ganancia de tensión (relación)","20","V\u002FV",{"name":83,"latexOrText":84,"description":85,"variables":86},"Frecuencia de corte del acoplamiento de salida","f_c = \\frac{1}{2\\pi R_L C_1}","Frecuencia por debajo de la cual C1 y el altavoz atenúan la señal (−3 dB), considerando el altavoz como una resistencia pura de 8 Ω.",[87,92,97],{"symbol":88,"name":89,"typicalValue":90,"unit":91},"R_L","Impedancia del altavoz","8","Ω",{"symbol":93,"name":94,"typicalValue":95,"unit":96},"C_1","Condensador de acoplamiento de salida","250","µF",{"symbol":98,"name":99,"typicalValue":100,"unit":101},"f_c","Frecuencia de corte (calculada)","80","Hz",{"name":103,"latexOrText":104,"description":105,"variables":106},"Tensión de polarización de la salida","V_{OUT(DC)} \\approx \\frac{V_S}{2}","La salida se polariza sola a aproximadamente la mitad de la tensión de alimentación; C1 impide que ese nivel de continua llegue al altavoz.",[107,112],{"symbol":108,"name":109,"typicalValue":110,"unit":111},"V_S","Tensión de alimentación","9","V",{"symbol":113,"name":103,"typicalValue":114,"unit":111},"V_{OUT(DC)}","4.5",[116,125,131,138,145,150,156],{"refDes":117,"componentName":118,"value":119,"package":120,"quantity":121,"componentSlug":122,"role":123,"notes":124},"U1","Amplificador de potencia de audio de baja tensión","LM386N-1","PDIP-8",1,"lm386","Amplificador de potencia, ganancia 20","TI LM386N-1\u002FNOPB. LM386N-3 y LM386N-4 comparten el pinout, pero tienen límites distintos de alimentación y potencia de salida.",{"refDes":126,"componentName":127,"value":128,"package":129,"quantity":121,"role":130},"RV1","Potenciómetro rotativo","10kΩ","Panel \u002F PCB mount","Control de volumen y atenuador de entrada",{"refDes":132,"componentName":133,"value":134,"package":135,"quantity":121,"role":136,"notes":137},"C1","Condensador electrolítico de aluminio","250µF","Radial","Acoplamiento de la salida al altavoz","Valor de la hoja de datos. 220 µF es el valor comercial más cercano y sube la frecuencia de corte calculada a unos 90 Hz. Tensión nominal superior a la alimentación; + hacia la patilla 5.",{"refDes":139,"componentName":140,"value":141,"package":142,"quantity":121,"role":143,"notes":144},"C2","Condensador cerámico o de película","0.05µF","Radial \u002F 0805","Red RC de salida","Valor de la hoja de datos; 47 nF es el valor comercial más cercano.",{"refDes":146,"componentName":147,"value":148,"package":149,"quantity":121,"role":143},"R1","Resistencia de 1\u002F4 W","10Ω","Axial \u002F 0805",{"refDes":151,"componentName":152,"value":153,"package":154,"quantity":121,"role":33,"notes":155},"LS1","Altavoz","8Ω","Wired","De 4 Ω a 32 Ω según la tabla 9-1 de TI.",{"refDes":157,"componentName":158,"value":159,"package":160,"quantity":121,"role":161,"notes":162},"BT1","Pila de 9 V","9V","PP3 \u002F 6LR61","Alimentación","Cualquier alimentación de 5 V a 12 V (TI, tabla 9-1).",{"BT1":164,"RV1":170,"U1":177,"C1":185,"C2":193,"R1":200,"LS1":206},{"refDes":157,"name":158,"value":159,"role":161,"description":165,"footprint":166,"specs":167},"Alimenta VS en la patilla 6. 9 V está dentro del rango de funcionamiento del LM386N-1, de 4 V a 12 V, y de los 5 V a 12 V de la tabla de diseño de la hoja de datos.","PP3 \u002F 6LR61 battery clip",{"Tensión nominal":168,"Rango de alimentación del LM386N-1":169},"9 V","4 V – 12 V (TI §6.5)",{"refDes":126,"name":171,"value":128,"role":172,"description":173,"footprint":174,"specs":175},"Potenciómetro de volumen","Atenuador de entrada","Conectado entre la entrada y masa; su cursor fija qué parte de la señal de entrada llega a la patilla 3 y, por tanto, el volumen. También mantiene la patilla 3 dentro de su rango de entrada de ±0,4 V.","Rotary, panel or PCB mount",{"Resistencia":176},"10 kΩ (TI, figura 9-1)",{"refDes":117,"name":178,"value":119,"role":123,"description":179,"componentSlug":122,"footprint":120,"specs":180},"Amplificador de potencia de audio LM386","Con las patillas 1 y 8 al aire, la resistencia interna de 1,35 kΩ fija la ganancia de tensión en 20 (26 dB). Las entradas están referidas a masa y la salida se polariza sola a la mitad de la alimentación. La patilla 2 va a masa; la patilla 7 (BYPASS) queda al aire, como en el circuito de la hoja de datos.",{"Ganancia de tensión":181,"Corriente de reposo":182,"Potencia de salida":183,"Tensión de entrada":184},"20 (26 dB), patillas 1 y 8 al aire","4 mA típicos, 8 mA máximos con VS = 6 V (TI §6.5)","325 mW típicos con VS = 6 V, RL = 8 Ω, THD = 10% (LM386N-1)","de −0,4 V a +0,4 V",{"refDes":132,"name":94,"value":134,"role":186,"description":187,"footprint":188,"specs":189},"Impide que la polarización de continua de la salida llegue al altavoz","La salida está a aproximadamente la mitad de la tensión de alimentación. C1 deja pasar la señal de audio al altavoz y bloquea ese nivel de continua; con el altavoz de 8 Ω fija una frecuencia de corte inferior calculada de unos 80 Hz. Su terminal positivo mira hacia la patilla 5.","Radial electrolytic",{"Capacidad":190,"Polaridad":191,"Tensión nominal":192},"250 µF (TI, figura 9-1)","+ hacia la patilla 5","Superior a la alimentación de 9 V",{"refDes":139,"name":194,"value":141,"role":195,"description":196,"footprint":197,"specs":198},"Condensador de la red de salida","Red RC en serie en la salida","Junto con R1 forma la red RC en serie de la patilla 5 a masa que TI usa en la salida de la mayoría de los circuitos de aplicación de la hoja de datos.","Ceramic or film",{"Capacidad":199},"0,05 µF (50 nF) (TI, figura 9-1)",{"refDes":146,"name":201,"value":148,"role":195,"description":202,"footprint":203,"specs":204},"Resistencia de la red de salida","Junto con C2 forma la red RC en serie de la patilla 5 a masa. A altas frecuencias ofrece a la salida una carga de unos 10 Ω.","Axial 1\u002F4 W",{"Resistencia":205},"10 Ω (TI, figura 9-1)",{"refDes":151,"name":152,"value":153,"role":33,"description":207,"footprint":208,"specs":209},"Altavoz de 8 Ω entre C1 y masa. Las tablas de diseño de la hoja de datos indican cargas de 4 Ω a 32 Ω; la impedancia mínima recomendada del altavoz es 4 Ω.","Wired speaker",{"Impedancia":210,"Rango admitido":211},"8 Ω","4 Ω – 32 Ω (TI, tabla 9-1)",{"schemaVersion":213,"id":214,"meta":215,"components":222,"nets":316,"junctions":381,"netLabels":387,"wires":388},"1.5","lm386_gain_20",{"title":216,"locale":217,"grid":218,"source":219},"Amplificador de audio LM386, ganancia 20","es",20,{"type":220,"ref":221,"url":17},"datasheet","Texas Instruments LM386 Low Voltage Audio Power Amplifier, SNAS545D, revised August 2023: §9.2.1 Figure 9-1 \"LM386 with Gain = 20\" (p. 10), Table 9-1; §6 (pp. 4–5); §10 (p. 17). Adaptation: 9 V battery as the supply (Table 9-1: 5 V to 12 V), 8 Ω speaker (Table 9-1: 4 Ω to 32 Ω).",[223,230,238,247,255,261,266,274,280,286,292,297,304,311],{"id":224,"symbolId":225,"refDes":157,"position":226,"rotation":228,"properties":229},"comp-bt1","battery.cell",{"x":218,"y":227},40,0,{"value":159},{"id":231,"symbolId":232,"refDes":233,"position":234,"rotation":228,"properties":236},"comp-gnd-bt1","gnd.port","P_GND_BT1",{"x":218,"y":235},140,{"value":237},"GND",{"id":239,"symbolId":240,"refDes":241,"position":242,"rotation":228,"properties":245},"comp-j1","port.input","J1",{"x":243,"y":244},100,160,{"value":246},"VIN",{"id":248,"symbolId":249,"refDes":126,"position":250,"rotation":253,"properties":254},"comp-rv1","potentiometer.iec",{"x":251,"y":252},200,260,270,{"value":128},{"id":256,"symbolId":232,"refDes":257,"position":258,"rotation":228,"properties":260},"comp-gnd-rv1","P_GND_RV1",{"x":251,"y":259},280,{"value":237},{"id":262,"symbolId":232,"refDes":263,"position":264,"rotation":228,"properties":265},"comp-gnd-u1-2","P_GND_IN",{"x":252,"y":244},{"value":237},{"id":267,"symbolId":268,"refDes":117,"position":269,"rotation":228,"properties":271},"comp-u1","ic.audio.lm386",{"x":270,"y":243},300,{"value":119,"package":120,"manufacturer":272,"mpn":273},"Texas Instruments","LM386N-1\u002FNOPB",{"id":275,"symbolId":232,"refDes":276,"position":277,"rotation":228,"properties":279},"comp-gnd-u1-4","P_GND_U1",{"x":278,"y":259},320,{"value":237},{"id":281,"symbolId":282,"refDes":132,"position":283,"rotation":228,"properties":285},"comp-c1","capacitor.electrolytic",{"x":284,"y":244},500,{"value":134},{"id":287,"symbolId":288,"refDes":139,"position":289,"rotation":290,"properties":291},"comp-c2","capacitor.ceramic",{"x":284,"y":251},90,{"value":141},{"id":293,"symbolId":294,"refDes":146,"position":295,"rotation":290,"properties":296},"comp-r1","resistor.iec",{"x":284,"y":270},{"value":148},{"id":298,"symbolId":232,"refDes":299,"position":300,"rotation":228,"properties":303},"comp-gnd-r1","P_GND_R1",{"x":301,"y":302},460,400,{"value":237},{"id":305,"symbolId":306,"refDes":151,"position":307,"rotation":228,"properties":310},"comp-ls1","speaker.iec",{"x":308,"y":309},600,220,{"value":153},{"id":312,"symbolId":232,"refDes":313,"position":314,"rotation":228,"properties":315},"comp-gnd-ls1","P_GND_LS1",{"x":308,"y":278},{"value":237},[317,326,347,354,361,369,375],{"id":318,"name":319,"class":320,"pins":321},"net_vs","VS","power",[322,324],{"component":224,"pin":323},"+",{"component":267,"pin":325},"6",{"id":327,"name":237,"class":328,"pins":329},"net_gnd","ground",[330,332,334,336,337,339,340,342,343,344,345,346],{"component":224,"pin":331},"-",{"component":231,"pin":333},"in",{"component":248,"pin":335},"1",{"component":256,"pin":333},{"component":267,"pin":338},"2",{"component":262,"pin":333},{"component":267,"pin":341},"4",{"component":275,"pin":333},{"component":293,"pin":338},{"component":298,"pin":333},{"component":305,"pin":338},{"component":312,"pin":333},{"id":348,"name":246,"class":349,"pins":350},"net_vin","signal",[351,353],{"component":239,"pin":352},"out",{"component":248,"pin":338},{"id":355,"name":356,"class":349,"pins":357},"net_in_pos","IN+",[358,360],{"component":248,"pin":359},"3",{"component":267,"pin":359},{"id":362,"name":363,"class":349,"pins":364},"net_vout","VOUT",[365,367,368],{"component":267,"pin":366},"5",{"component":281,"pin":335},{"component":287,"pin":335},{"id":370,"name":371,"class":349,"pins":372},"net_spk","SPK",[373,374],{"component":281,"pin":338},{"component":305,"pin":335},{"id":376,"name":377,"class":349,"pins":378},"net_zobel","ZOBEL",[379,380],{"component":287,"pin":338},{"component":293,"pin":335},[382],{"id":383,"netId":362,"position":384},"j-vout",{"x":385,"y":386},480,180,[],[389,399,408,416,424,432,441,449,458,466,474,485,493,501],{"id":390,"netId":318,"endpoints":391,"path":394},"w-vs",[392,393],{"component":224,"pin":323},{"component":267,"pin":325},[395,396,398],{"x":227,"y":227},{"x":397,"y":227},340,{"x":397,"y":243},{"id":400,"netId":327,"endpoints":401,"path":404},"w-bt1-gnd",[402,403],{"component":224,"pin":331},{"component":231,"pin":333},[405,407],{"x":227,"y":406},120,{"x":227,"y":235},{"id":409,"netId":348,"endpoints":410,"path":413},"w-vin",[411,412],{"component":239,"pin":352},{"component":248,"pin":338},[414,415],{"x":244,"y":386},{"x":309,"y":386},{"id":417,"netId":327,"endpoints":418,"path":421},"w-rv1-gnd",[419,420],{"component":248,"pin":335},{"component":256,"pin":333},[422,423],{"x":309,"y":252},{"x":309,"y":259},{"id":425,"netId":355,"endpoints":426,"path":429},"w-wiper",[427,428],{"component":248,"pin":359},{"component":267,"pin":359},[430,431],{"x":252,"y":309},{"x":270,"y":309},{"id":433,"netId":327,"endpoints":434,"path":437},"w-u1-2-gnd",[435,436],{"component":267,"pin":338},{"component":262,"pin":333},[438,439,440],{"x":270,"y":235},{"x":259,"y":235},{"x":259,"y":244},{"id":442,"netId":327,"endpoints":443,"path":446},"w-u1-4-gnd",[444,445],{"component":267,"pin":341},{"component":275,"pin":333},[447,448],{"x":397,"y":252},{"x":397,"y":259},{"id":450,"netId":362,"endpoints":451,"path":454},"w-out-j",[452,453],{"component":267,"pin":366},{"junctionId":383},[455,457],{"x":456,"y":386},440,{"x":385,"y":386},{"id":459,"netId":362,"endpoints":460,"path":463},"w-j-c1",[461,462],{"junctionId":383},{"component":281,"pin":335},[464,465],{"x":385,"y":386},{"x":284,"y":386},{"id":467,"netId":362,"endpoints":468,"path":471},"w-j-c2",[469,470],{"junctionId":383},{"component":287,"pin":335},[472,473],{"x":385,"y":386},{"x":385,"y":251},{"id":475,"netId":370,"endpoints":476,"path":479},"w-c1-ls1",[477,478],{"component":281,"pin":338},{"component":305,"pin":335},[480,482,484],{"x":481,"y":386},580,{"x":483,"y":386},620,{"x":483,"y":309},{"id":486,"netId":327,"endpoints":487,"path":490},"w-ls1-gnd",[488,489],{"component":305,"pin":338},{"component":312,"pin":333},[491,492],{"x":483,"y":270},{"x":483,"y":278},{"id":494,"netId":376,"endpoints":495,"path":498},"w-c2-r1",[496,497],{"component":287,"pin":338},{"component":293,"pin":335},[499,500],{"x":385,"y":259},{"x":385,"y":270},{"id":502,"netId":327,"endpoints":503,"path":506},"w-r1-gnd",[504,505],{"component":293,"pin":338},{"component":298,"pin":333},[507,509],{"x":3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9-9 de ti: lm386 con una rama de realimentación de 10 kω y 33 nf, control de volumen y altavoz de 8 ω alimentado por una pila de 9 v.\nlm386 audio amplifier with bass boost\nti figure 9-9 redrawn as an editable lm386 bass-boost amplifier: a 10 kω and 33 nf feedback branch, volume control and an 8 ω speaker powered from a 9 v battery.\naudio_amplifiers\namplificador de potencia de audio de baja tensión\nlm386n-1\nu1\npotenciómetro rotativo\n10kω\nrv1\ncondensador electrolítico de aluminio\n250µf\nc1\ncondensador cerámico o de película\n0.05µf\nc2\nresistencia de 1\u002F4 w\n10ω\nr1\naltavoz\n8ω\nls1\npila de 9 v\n9v\nbt1\nresistencia de realimentación\n10kω\nr2\ncondensador de realimentación\n0.033µf\nc3",{"slug":532,"cluster":20,"tier":21,"supplyVoltage":533,"voltageSpecification":535,"signalDomain":525,"breadboardFriendly":538,"title":539,"shortDescription":540,"bomCount":528,"formulaCount":541,"search":542},"ne5532-ultra-low-noise-inverting-mic-preamp",[521,534],"dual_rail",{"kind":523,"value":536,"label":537},"±15 V simétricos regulados (±3 V a ±20 V)","Raíles de alimentación (V+ \u002F V-)",false,"Preamplificador de micrófono inversor de ultra bajo ruido NE5532","Preamplificador de audio inversor de ultra bajo ruido monocanal basado en el amplificador operacional Texas Instruments NE5532, con ganancia de +33.4 dB en bucle cerrado, bloqueo de CC de entrada y compensación de fase de alta frecuencia.",4,"preamplificador de micrófono inversor de ultra bajo ruido ne5532\npreamplificador de audio inversor de ultra bajo ruido monocanal basado en el amplificador operacional texas instruments ne5532, con ganancia de +33.4 db en bucle cerrado, bloqueo de cc de entrada y compensación de fase de alta frecuencia.\npreamplificador de micrófono inversor de ultra bajo ruido ne5532\npreamplificador de audio inversor de ultra bajo ruido monocanal basado en el amplificador operacional texas instruments ne5532, con ganancia de +33.4 db en bucle cerrado, bloqueo de cc de entrada y compensación de fase de alta frecuencia.\nne5532 ultra-low-noise inverting microphone preamplifier\nsingle-channel ultra-low-noise inverting audio preamplifier based on the texas instruments ne5532 op-amp, featuring +33.4 db closed-loop gain, input dc blocking, and high-frequency phase compensation.\naudio_amplifiers\namplificador operacional de audio dual de bajo ruido y alta velocidad\nne5532p\nu1\nresistencia serie de entrada\n1kω\nr1\nresistencia de realimentación de bucle cerrado\n47kω\nr2\nresistencia de polarización de entrada no inversora\n1kω\nr3\nresistencia de aislamiento para cable de salida\n47ω\nr4\ncondensador de acoplamiento de ca de entrada\n10µf\nc1\ncondensador de compensación de fase de realimentación\n47pf\nc2\ncondensador de desacoplo de ruido de polarización no inversora\n10µf\nc3\ncondensador de acoplamiento de ca de salida\n10µf\nc6",{"slug":544,"cluster":545,"tier":21,"supplyVoltage":546,"voltageSpecification":548,"signalDomain":551,"breadboardFriendly":14,"title":552,"shortDescription":553,"bomCount":554,"formulaCount":541,"search":555},"2n2222-relay-driver-flyback-protection","microcontroller_interfaces",[547,520,521],"3.3v",{"kind":523,"value":549,"label":550},"+12.0 V CC nominal (rango operativo de +10.8 V a +13.2 V)","Tensión de alimentación del relé (VLOAD)","digital","Controlador de relé con BJT NPN 2N2222 \u002F 2N2222A y diodo flyback 1N4007","Circuito de conmutación de lado bajo con transistor bipolar NPN para relé de 12V con diodo flyback 1N4007, excitación en saturación y desacoplo de alimentación para MCU de 3.3V\u002F5V.",7,"controlador de relé con bjt npn 2n2222 \u002F 2n2222a y diodo flyback 1n4007\ncircuito de conmutación de lado bajo con transistor bipolar npn para relé de 12v con diodo flyback 1n4007, excitación en saturación y desacoplo de alimentación para mcu de 3.3v\u002F5v.\ncontrolador de relé con bjt npn 2n2222 \u002F 2n2222a y diodo flyback 1n4007\ncircuito de conmutación de lado bajo con transistor bipolar npn para relé de 12v con diodo flyback 1n4007, excitación en saturación y desacoplo de alimentación para mcu de 3.3v\u002F5v.\n2n2222 \u002F 2n2222a npn bjt relay driver with 1n4007 flyback clamping diode\ndiscrete npn bipolar junction transistor low-side relay driver circuit with 1n4007 flyback suppression diode, base saturation drive, and supply decoupling for 3.3v\u002F5v mcu control.\nmicrocontroller_interfaces\ntransistor bipolar npn de uso general\n2n2222a\nq1\ndiodo rectificador \u002F fijador de uso general\n1n4007\nd1\nrelé subminiatura electromecánico spdt\ng5v-1-dc12\nk1\nresistencia limitadora de base 1 kω\n1kω\nr1\nresistencia pull-down de base 10 kω\n10kω\nr2\ncondensador cerámico de desacoplo mlcc\n100nf 50v\nc1\ncondensador electrolítico de desacoplo de aluminio\n47µf 25v\nc2",1793836432333]