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LM4889MA

Space-saving class-AB amp with high fidelity outpu

Inventory:8,622

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Overview of LM4889MA

The LM4889MA is a dual audio power amplifier IC designed for stereo applications. It features a compact package with built-in gain and shutdown control, making it ideal for portable audio devices and headphone amplifiers.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VDD: Positive power supply
  • IN1: Audio input channel 1
  • IN2: Audio input channel 2
  • GND: Power ground
  • SHDN: Shutdown pin
  • OUT1: Audio output channel 1
  • OUT2: Audio output channel 2

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM4889MA IC for a visual representation.

Key Features

  • Dual Audio Power Amplifier: Provides stereo amplification for audio applications.
  • Built-in Gain: Includes built-in gain settings for flexible audio signal amplification.
  • Shutdown Control: Features a shutdown pin for power-saving functionality.
  • Compact Package: Available in a small, space-saving package ideal for portable devices.
  • Low Quiescent Current: Consumes minimal power in standby mode.

Note: For detailed technical specifications, please refer to the LM4889MA datasheet.

Application

  • Portable Audio Devices: Ideal for use in portable audio players, headphones, and mobile devices.
  • Headphone Amplifiers: Suitable for driving headphones and improving audio output quality.
  • Stereo Systems: Used in stereo systems for amplifying audio signals.

Functionality

The LM4889MA is a dual audio power amplifier IC designed to amplify stereo audio signals with built-in gain control and shutdown functionality, suitable for a variety of audio applications.

Usage Guide

  • Power Supply: Connect VDD (Pin 1) to the positive power supply.
  • Audio Inputs: Connect IN1 (Pin 2) and IN2 (Pin 3) to the audio input sources.
  • Shutdown Control: Use the SHDN (Pin 5) pin to enable or disable the amplifier.

Frequently Asked Questions

Q: What is the typical application of the LM4889MA?
A: The LM4889MA is commonly used in portable audio devices and headphone amplifiers for stereo audio amplification.

Q: Does the LM4889MA have power-saving features?
A: Yes, the LM4889MA includes a shutdown pin (SHDN) for power-saving mode.

Equivalent

For similar functionalities, consider these alternatives to the LM4889MA:

  • LM4880: This is a similar dual audio power amplifier IC from Texas Instruments, offering comparable features and performance.
  • TDA2822M: This is a dual low-voltage power amplifier IC from STMicroelectronics, suitable for stereo applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Audio Amplifiers RoHS N
Product Audio Amplifiers Class Class-AB
Mounting Style SMD/SMT Package / Case SOIC-Narrow-8
Brand Texas Instruments Product Type Audio Amplifiers
Factory Pack Quantity 95 Subcategory Audio ICs
Unit Weight 0.005044 oz

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LM4889MA

Space-saving class-AB amp with high fidelity outpu

Inventory:

8,622