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LM4990LDX/NOPB

LM4990LDX/NOPB

Product Overview

Category

The LM4990LDX/NOPB belongs to the category of audio amplifiers.

Use

It is commonly used as a high-performance audio amplifier for various applications such as portable devices, headphones, and multimedia speakers.

Characteristics

  • High performance
  • Low distortion
  • Wide supply voltage range
  • Thermal shutdown protection

Package

The LM4990LDX/NOPB is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of LM4990LDX/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4990LDX/NOPB is typically packaged in reels of 2500 units.

Specifications

  • Supply Voltage Range: 2.7V to 5.5V
  • Output Power: 1.1W at 3.6V, 10% THD+N, 16Ω Load
  • Total Harmonic Distortion + Noise (THD+N): 0.04% (Typical)
  • Shutdown Current: 0.01μA (Typical)

Detailed Pin Configuration

  1. OUT-
  2. OUT+
  3. V-
  4. GND
  5. BYP
  6. SHDN
  7. V+
  8. IN+

Functional Features

  • Low quiescent current
  • Short-circuit and thermal protection
  • Differential inputs

Advantages and Disadvantages

Advantages

  • High-quality audio amplification
  • Wide supply voltage range
  • Thermal shutdown protection

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires external components for operation

Working Principles

The LM4990LDX/NOPB operates by amplifying the input audio signal and delivering it to the connected load, such as headphones or speakers. It utilizes differential inputs and low-distortion circuitry to ensure high-fidelity audio reproduction.

Detailed Application Field Plans

The LM4990LDX/NOPB is well-suited for use in various portable audio devices, including smartphones, tablets, and portable media players. It can also be integrated into headphone amplifiers and multimedia speaker systems to deliver clear and powerful audio output.

Detailed and Complete Alternative Models

Some alternative models to the LM4990LDX/NOPB include: - TPA6130A2 - MAX97220 - NJM4556A

In summary, the LM4990LDX/NOPB is a high-performance audio amplifier suitable for a wide range of portable and consumer electronic applications, offering high-quality audio amplification in a compact and efficient package.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng LM4990LDX/NOPB trong giải pháp kỹ thuật

  1. Question: What is the maximum input voltage for LM4990LDX/NOPB?
    Answer: The maximum input voltage for LM4990LDX/NOPB is 15V.

  2. Question: What is the typical output power of LM4990LDX/NOPB?
    Answer: The typical output power of LM4990LDX/NOPB is 1W into 8Ω at 5V.

  3. Question: Can LM4990LDX/NOPB operate with a single supply voltage?
    Answer: Yes, LM4990LDX/NOPB can operate with a single supply voltage ranging from 2.7V to 5.5V.

  4. Question: What is the recommended operating temperature range for LM4990LDX/NOPB?
    Answer: The recommended operating temperature range for LM4990LDX/NOPB is -40°C to 125°C.

  5. Question: Does LM4990LDX/NOPB require external compensation?
    Answer: No, LM4990LDX/NOPB does not require external compensation.

  6. Question: What is the typical quiescent current of LM4990LDX/NOPB?
    Answer: The typical quiescent current of LM4990LDX/NOPB is 4.6mA.

  7. Question: Can LM4990LDX/NOPB be used in portable audio applications?
    Answer: Yes, LM4990LDX/NOPB is suitable for use in portable audio applications.

  8. Question: What is the typical total harmonic distortion (THD) of LM4990LDX/NOPB?
    Answer: The typical THD of LM4990LDX/NOPB is 0.1% at 1kHz and 0.5W.

  9. Question: Is LM4990LDX/NOPB short-circuit protected?
    Answer: Yes, LM4990LDX/NOPB is internally protected against short circuits.

  10. Question: What is the package type of LM4990LDX/NOPB?
    Answer: LM4990LDX/NOPB is available in a 14-pin LLP package.