The lm386 is a type of operational amplifier opamp. Lm386 datasheet, lm386 pdf, pinouts, circuit texas instruments. Jrc386d datasheet pdf low voltage audio power amplifier. The integrated chip lm386 is a low power audio frequency amplifier requiring a low level power supply most often batteries. The lm386m chip is available in a so package m manufactured by texas instruments, and operates on a voltage range. On ebay, it goes by various names and descriptions such as lm386 audio amplifier module 200 times 5v12v input 10k adjustable resistance.
Lm386 audio amplifier fxlms adaptive algorithm tms320c30 evaluation module adaptive filteredx lms algorithm cd550 spra021 tms320c30x text. The lm386 takes anywhere from 412 volts of dc voltage to operate. The lm386 is a type of operational amplifier op amp. Low voltage audio power amplifier, lm386 datasheet, lm386 pdf, datasheets pdf lm386, pinout, data sheet, circuits. Ti1 low voltage audio power amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
Surprisingly, even though the circuit is built on a breadboard, there was very less noise from the speaker. Lm386 low voltage audio power amplifier echelle inconnue. Low voltage audio power amplifier sop8 description the utc lm386 is a power amplifier, designed for use in low voltage consumer applications. Nsc low voltage audio power amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Value is not critical, but should be in the range of a 220470uf or so.
The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will. It includes the very popular lm386 audio power amplifier 8pin ic, a welldesigned pcb for the lm386, schematics, and the parts to build it. Lm386 snas545c may 2004revised may 2017 lm386 low voltage audio power amplifier 1 1 features 1 battery operation minimum. Lm386 low voltage audio power amplifier general description the lm386 is a power amplifier designed for use in low voltage consumer applications. Lm386 audio amplifier the lm386 is a low voltage audio amplifier ic manufactured by national semiconductor. How to make audio amplifier using lm386 lm386 audio. The working of the circuit is very straight forward as all the work is done by the lm386 ic itself. Lm386 datasheet, lm386 datasheets, lm386 pdf, lm386 circuit. Lm386 low voltage audio power amplifier datasheet catalog. Wide input voltage low power audio amplifier with internal gain. K application notes gain control to make the lm386 a more versatile amplifier, two pins1and 8 are provided for gain control.
Lm386 amplifier circuit working specifications explained. Next, from the lm386 data sheet available free from ti, i can see that the capacitor at pins 18 is setting your circuit up for the maximum gain of 200. The gain range is 20 to 200, gain is internally set to 20 without using external component but can be increased to 200 by using resistor and capacitor between pin 1 and 8, or just with a capacitor. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pin 1 and pin 8 will increase the gain to any value up from 20 to 200. Lm386 datasheet texas instruments, download pdf radiolocman. Makes a fantastic headphone amplifier for our drummer as well. Jrc386d datasheet pdf low voltage audio power amplifier, jrc386d pdf, jrc386d pinout, equivalent, njm386, njm386d, jrc386d schematic, jrc386d manual. The lm386 amplifies the sound input into it by a factor of 200. Lm386 audio amplifier circuit working and pin of lm 386. Circuit diagram of the lm386 based audio amplifier is shown in fig. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. Some of the features of lm 386 audio power amplifier. The lm386 is a power amplifier designed for use in low voltage consumer applications.
Small, battery powered, variable gain 1w lm386 ic based mono audio amplifier electronic kit. Lm386n3 low voltage audio power amplifier the lm386 is a power amplifier designed for use in low voltage consumer applications. Lm741 general purpose opamp u4 4093 quad schmitt trigger nand gate u5 lm386n audio. Try wiring the 386 the conventional way, as shown in the datasheet. The gain is internally set to 20 tokeep external part count low, but the addition of an externalresistor and capacitor between pins 1 and 8 will increase thegain to any value from 20 to 200. Thats a lot of gain, and high gain opens up any monolithic amplifier circuit up to all kinds of stability issues, especially if this circuit is being built up on a development breadboard.
The lm386 is a low power audio frequency amplifier which is very commonly used in small audio amplifiers. The lm386 audio ampifier is a general purpose singlechannel audio amplifier that can handle up to 700mw and is easy to use. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8. Circuit lm386 audio and rf probe amplifier signal tracer. Electronic manufacturer, part no, datasheet, electronics description.
When the system is powered on and proper audio input is given at the input, the lm386 amplifier the input signal by a factor of 200 and drives the output speaker. Wide vin low power audio amplifier with internal gain. Apr 30, 2011 this is a build video of a very simple audio amplifier based on the lm386 chip. Download lm386 datasheet pdf texas instruments document. Even though the datasheet of audio amplifier advises the bypasscapacitor at the 7th pin is an option, we form that connecting a capacitor 100 f was truly helpful because it assists in the noise reduction. Lm386 wide input voltage low power audio amplifier with internal. Here, in the above diagram lm386 audio amplifier circuit using transistors, r1 is a potentiometer, which is used as a volume control for the audio signal. The ic lm386 is a power amplifier used for amplifying small audio signals with low supply voltages. Lm386 datasheet58 pages utc low voltage audio power.
Low voltage audio power amplifier online from elcodis, view and download lm386n pdf datasheet, tools specifications. They work just as well and are better than a handfull of jumper wires reply. The gain is internally set to 20 tokeep external part count low, but the addition of an externalresistor and capacitor between pins 1 and 8 will increase thegain to any value up to 200. A simple but efficient audio amplifier is designed using lm386 audio amplifier ic. Dec 20, 2018 what you need to build this audio amplifier using lm386 lm386 resistors 4. An important notice at the end of this data sheet addresses availability, warranty, changes, use in safetycritical applications, intellectual property matters and other important disclaimers. To make the lm 386 more flexible, two pins 1and 8 of the audio amplifier are provided for gain control and gain adjustments.
They take an input potential voltage and produce an output potential thats tens, hundreds, or thousands of times the magnitude of the input potential. First i tried connecting the circuit to a 9v battery. Voltage gain simply means that voltage out is 200 times the voltage in. Low voltage audio power amplifier low voltage audio power amplifier wing shing computer components. It will operate best from 612v dc and will work well from a battery since the quiescent current drain is only 4 ma, if the. The lm386 is an integrated circuit containing a low voltage audio power amplifier. The ic is designed to deliver a voltage amplification of 20 without external addon parts. The lm386 is a power amplifier designed for use in low volt age consumer applications. This is one of the worlds most popular audio power amplifier integrated circuits ever made. Great sounding lm386 audio amplifier with bass boost. Oscillation can turns familiar sounds into the unrecognizable. Lm386 datasheet pdf audio power amplifier national. Working operation of audio amplifier ic lm386 gadgetronicx.
The inputs are ground referenced while the output is automatically. To make the lm386 a more versatile amplifier two pins 1 and 8 are provided for gain control with pins 1 and 8 open the 5 k x resistor sets the gain at 20 26 db if a capacitor is put from pin 1 to 8 bypassing the 5 k x resistor the gain will go up to 200 46 db if a resistor is placed in series. Texas instruments, lm386, old version datasheet low voltage audio power amplifier. As a probe of audio signal and rf, can make maintenance of equipment such as amplifiers, preamplifier, radios, car audio, transmitters, recorders, televisions and more. It is suitable for batterypowered devices such as radios, guitar amplifiers, and hobby electronics projects. Lm386 low voltage audio amplifier page 1 of 1 his is a 1 watt mono amplifier module kit using the lm386n ic from national semiconductor. The ic consumes very less power and hence can be operated using a 9v battery easily. The lm386m1 and lm386mx1 are power amplifiers designed for use in low voltage consumer applications. Hi every body i want to design an audio amplifier circuit using lm386 and lm358. Ic lm386 amplifier circuit becomes suitable for applying in small low power audio gadgets like in fm radios, door bells, telephones etc.
Office distributors for availability and specifications. Lm386 based audio amplifier full project with circuit available. This article was meant to make you understand the working of lm386 ic and how to use in amplifier circuits. Lm386 low voltage audio power amplifier 1 1 features 1 battery operation minimum external parts wide supply voltage range. The ic consists of an 8 pin dual inline package and can output 0. Lm386 mono audio amplifier kit quasar electronics as3017kt. Build a great sounding audio amplifier with bass boost from. Many people use lm386 to increase sound up to a speaker.
Utc low voltage audio power amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Lm386 datasheet pdf, lm386 pdf datasheet, equivalent, schematic, lm386 datasheets, lm386 wiki, transistor, cross reference, pdf download,free search site, pinout. Lm386 low voltage audio power amplifier generaldescription the lm386 is a power amplifier designed for use in low voltage consumer applications the gain is internally set to. May 29, 2019 jrc386d datasheet pdf low voltage audio power amplifier, jrc386d pdf, jrc386d pinout, equivalent, njm386, njm386d, jrc386d schematic, jrc386d manual. First, let us look into detail on the chip, lm 386. The inputs of the ic operate with respect to the ground. Lm386 wide input voltage low power audio amplifier with. C5 improves the stability of the lm386 amplifier to prevent problems such as oscillation. Texas instruments lm386 audio amplifiers are available at mouser electronics. How to connect a lm386 audio amplifier chip to a circuit. Build a great sounding audio amplifier with bass boost. Lm386 snas545c may 2004revised may 2017 lm386 low voltage audio power amplifier 1 1 features 1 battery operation minimum external parts wide supply voltage range.
Audio amplifier ic lm386 is a widely known audio amplifier used in many audio circuits due to its miniature size and affordable cost. To begin with, the signal goes to the input pin 3, noninverting input. Happlication notesgain controlto make the lm386 a more versatile amplifier, two pins1and 8 are provided for gain control. Lm386 datasheet211 pages ti1 low voltage audio power. This is a signal amplifier in the nonreturn phase form.
One of the main problems with audio amplifiers like lm386 is the noise. Low voltage audio power amplifier, lm386 datasheet, lm386 circuit, lm386 data sheet. How to build small, simple audio amplifiers using ic lm386. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value up to 200. Lm380 1features description wide supply voltage range. But this voltage gain can be raised up to 200 vu 200 by adding external parts. Lm386 datasheet, lm386 pdf, lm386 data sheet, lm386 manual, lm386 pdf, lm386, datenblatt, electronics lm386, alldatasheet, free, datasheet, datasheets, data sheet, datas sheets, databook, free datasheet. If militaryaerospace specified devices are required, please contact the national semiconductor sales office. The ic lm386 is a 8pin tiny power amplifier chip, specially made for operating under relatively low voltage parameters, yet provide considerable amplification. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Lm386, datasheet, datasheets, pdf, national semiconductor, texas instruments, datasheetcatalog. Lm386low voltage audio power amplifiergeneral descriptionthe lm386 is a power amplifier designed for use in low voltage consumer applications. Dec 06, 2017 a simple but efficient audio amplifier is designed using lm386 audio amplifier ic. The inputs are ground referenced while the output automati.
Lm386 is a low voltage audio amplifier and frequently used in battery powered music devices like radios, guitars, toys etc. In order to hold system cost to a low quiescent power drain. There are three versions of this ic, lm386n1, lm386n3, lm386n4, capable of providing power output of 0. Low voltage audio power amplifier general description the lm386 is a power amplifier designed for use in low voltage consumer applications. Lm386 pdf, lm386 description, lm386 datasheets, lm386 view. Lm386 low voltage audio power amplifier december 1994 lm386 low voltage audio power amplifier general description the lm386 is a power amplifier designed for use in low voltage consumer applications.
Lm386 datasheet, lm386 pdf, lm386 data sheet, lm386 manual, lm386 pdf, lm386, datenblatt, electronics lm386, alldatasheet, free, datasheet, datasheets, data sheet. The lm386 audio amplifier module is a mono audio amplifier based on the lm386 chip. Here is a simple lm386 based audio amplifier circuit with the authors prototype shown below. The signal tracer rf and audio probe using lm386 integrated circuit is geared towards maintaining preamplifier, power amplifiers and even rf devices. May 07, 2020 the output capacitor between the amplifier and speaker is needed to avoid overheating the lm386 or damaging the speaker. Lm386 based audio amplifier full project with circuit. Lm 386 is available in dual inline package dip8 and small outline integrated circuit soic8 package where dip is the through hole version while soic is the smd version. Wide vin low power audio amplifier with internal gain 8pdip 0 to 70. Jan 02, 2020 the ic lm386 is a 8pin tiny power amplifier chip, specially made for operating under relatively low voltage parameters, yet provide considerable amplification. Lm4871, ad620, ic6283, jrc4558, where to use the lm386 audio amplifier. Lm386 low voltage audio power amplifier datasheet rev.