LM386N DATASHEET PDF

The LM is a low power audio frequency amplifier which is very commonly used in small audio amplifiers. The IC consumes very less power and hence can be operated using a 9V battery easily. It can easily drive an 8-ohm speaker with a variable gain of 20 to Volume control and gain control is also possible in this. So, if you are looking for an audio amplifier IC which can be powered using a battery for a portable application to drive an 8-ohm speaker then this IC might be the right choice for you. For driving heavy speakers you have to use the power amplifier ICs.

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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 PDF , 1. Extract from the document. The primary equipment used for the measurements consists of the System Two audio measurement system by Audio Precision , a digital multimeter DMM , and a dc power supply.

PDF , Kb , Revision: A , File published: Sep 1, This application report explains the different types of audio power amplifier configurations, such as the single-ended SE , the bridge-tied load BTL , and the fully differential audio amplifier. Each configuration is illustrated with a block diagram, gain equations, and an example using realistic scenarios to illustrate to engineers how to calculate the gain of their audio amplifier.

PDF , Kb , Revision: C , File published: Apr 22, This application note describes the sine wave generation techniques to control frequency amplitude anddistortion levels. Related publications. Privacy Policy Change Privacy Settings. Texas Instruments.

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