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LM4981SQX/NOPB

LM4981SQX/NOPB

Product Overview

  • Category: Audio Amplifier
  • Use: The LM4981SQX/NOPB is a high-performance audio amplifier designed for use in various audio applications, including portable devices, headphones, and multimedia systems.
  • Characteristics: This amplifier offers high efficiency, low distortion, and excellent audio quality, making it suitable for demanding audio applications.
  • Package: The LM4981SQX/NOPB is available in a small outline package (SOIC) for easy integration into compact electronic designs.
  • Essence: The essence of this product lies in its ability to deliver high-quality audio amplification in a compact and efficient package.
  • Packaging/Quantity: The LM4981SQX/NOPB is typically available in reels containing a specific quantity, as per the manufacturer's specifications.

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: Up to 80mW per channel into 16Ω load at 3.6V
  • Total Harmonic Distortion + Noise (THD+N): 0.01% (typical) at 1kHz, 10mW into 16Ω
  • Shutdown Current: 0.1μA (typical)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LM4981SQX/NOPB features a standard pin configuration with input, output, power supply, and control pins. Please refer to the datasheet for the detailed pinout diagram.

Functional Features

  • High Efficiency: The amplifier offers high efficiency, making it suitable for battery-powered applications.
  • Low Distortion: With low total harmonic distortion and noise, the LM4981SQX/NOPB ensures clear and accurate audio reproduction.
  • Integrated Shutdown Function: The amplifier includes a shutdown mode to minimize power consumption when not in use.

Advantages and Disadvantages

Advantages

  • High efficiency
  • Low distortion
  • Integrated shutdown function for power savings

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • May require additional external components for certain applications

Working Principles

The LM4981SQX/NOPB operates on the principle of amplifying audio signals with high fidelity and minimal distortion. It utilizes advanced circuitry to achieve high efficiency and low power consumption while delivering clear and powerful audio output.

Detailed Application Field Plans

The LM4981SQX/NOPB is well-suited for a wide range of applications, including: - Portable audio devices - Headphone amplifiers - Multimedia systems - Portable speakers - Audio accessories for mobile devices

Detailed and Complete Alternative Models

  • LM4980SQX/NOPB: Similar performance with different package options
  • LM4982SQX/NOPB: Higher output power with similar characteristics
  • LM4990SQX/NOPB: Lower power consumption with comparable audio performance

In conclusion, the LM4981SQX/NOPB offers a balance of performance, efficiency, and compact design, making it an ideal choice for various audio amplification needs.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LM4981SQX/NOPB dalam penyelesaian teknikal

  1. Question: What is the maximum power supply voltage for LM4981SQX/NOPB?
    Answer: The maximum power supply voltage for LM4981SQX/NOPB is 15V.

  2. Question: Can LM4981SQX/NOPB be used in audio amplifier applications?
    Answer: Yes, LM4981SQX/NOPB is suitable for audio amplifier applications.

  3. Question: What is the typical output power of LM4981SQX/NOPB?
    Answer: The typical output power of LM4981SQX/NOPB is 1.5W into 8Ω at 10% THD+N.

  4. Question: Is LM4981SQX/NOPB a mono or stereo amplifier?
    Answer: LM4981SQX/NOPB is a mono amplifier.

  5. Question: What is the recommended operating temperature range for LM4981SQX/NOPB?
    Answer: The recommended operating temperature range for LM4981SQX/NOPB is -40°C to 85°C.

  6. Question: Does LM4981SQX/NOPB require an external heat sink?
    Answer: No, LM4981SQX/NOPB does not require an external heat sink.

  7. Question: Can LM4981SQX/NOPB operate on a single power supply?
    Answer: Yes, LM4981SQX/NOPB can operate on a single power supply.

  8. Question: What is the input impedance of LM4981SQX/NOPB?
    Answer: The input impedance of LM4981SQX/NOPB is typically 100kΩ.

  9. Question: Does LM4981SQX/NOPB have built-in short-circuit protection?
    Answer: Yes, LM4981SQX/NOPB features built-in short-circuit protection.

  10. Question: Can LM4981SQX/NOPB be used in portable audio devices?
    Answer: Yes, LM4981SQX/NOPB is suitable for use in portable audio devices.