NJR Corporation/NJRC
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NJM2374AM
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NJM2374AM

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: Low noise, low distortion, high gain
  • Package: SOP (Small Outline Package)
  • Essence: High-performance audio amplifier
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Supply Voltage: 2.5V to 5.5V
  • Input Voltage Range: -0.3V to VDD+0.3V
  • Output Power: 1.2W (VDD = 5V, RL = 8Ω, THD = 10%)
  • Total Harmonic Distortion: 0.1% (VDD = 5V, RL = 8Ω, POUT = 0.5W)
  • Quiescent Current: 6mA (typical)

Detailed Pin Configuration

The NJM2374AM has a total of 8 pins:

  1. IN-
  2. IN+
  3. GND
  4. VDD
  5. OUT
  6. NC (No Connection)
  7. NC (No Connection)
  8. SHUTDOWN

Functional Features

  • Low noise and low distortion audio amplification
  • Wide input voltage range for compatibility with various audio sources
  • High gain for improved signal amplification
  • Shutdown mode for power-saving when not in use

Advantages and Disadvantages

Advantages: - Low noise and distortion result in high-quality audio output - Wide input voltage range allows for versatile applications - Small package size enables space-saving designs - Shutdown mode helps conserve power

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for driving low impedance loads

Working Principles

The NJM2374AM is a class AB audio amplifier that operates on a single supply voltage. It utilizes a differential input stage to minimize noise and distortion. The amplified audio signal is then delivered to the output stage, which drives the connected load, such as a speaker. The shutdown pin allows the amplifier to enter a low-power mode when not in use.

Detailed Application Field Plans

The NJM2374AM is commonly used in various audio applications, including:

  1. Portable audio devices
  2. Headphone amplifiers
  3. Multimedia speakers
  4. Car audio systems
  5. Home theater systems

Detailed and Complete Alternative Models

  • LM386: Low voltage audio power amplifier
  • TDA7265: Dual bridge audio amplifier
  • MAX9744: 20W stereo class D audio power amplifier
  • TPA3116D2: 50W stereo class D audio amplifier

(Note: This list is not exhaustive and there are other alternative models available in the market.)

This encyclopedia entry provides an overview of the NJM2374AM audio amplifier, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

10 سوال و پاسخ رایج مربوط به کاربرد NJM2374AM در راه حل های فنی را فهرست کنید

Sure! Here are 10 common questions and answers related to the application of NJM2374AM in technical solutions:

  1. Q: What is NJM2374AM? A: NJM2374AM is a voltage regulator IC (integrated circuit) commonly used in electronic circuits to provide stable and regulated power supply.

  2. Q: What is the input voltage range of NJM2374AM? A: The input voltage range of NJM2374AM is typically between 4.5V and 18V.

  3. Q: What is the output voltage range of NJM2374AM? A: The output voltage range of NJM2374AM can be adjusted from 1.2V to 15V using external resistors.

  4. Q: What is the maximum output current of NJM2374AM? A: The maximum output current of NJM2374AM is typically around 1A, but it can vary depending on the specific application and operating conditions.

  5. Q: Can NJM2374AM handle both step-up and step-down voltage regulation? A: No, NJM2374AM is primarily designed for step-down (buck) voltage regulation. For step-up (boost) applications, a different voltage regulator IC should be used.

  6. Q: Is NJM2374AM suitable for battery-powered applications? A: Yes, NJM2374AM is commonly used in battery-powered applications due to its low dropout voltage and low quiescent current, which helps conserve battery life.

  7. Q: Does NJM2374AM have built-in protection features? A: Yes, NJM2374AM includes built-in protection features such as thermal shutdown, overcurrent protection, and short-circuit protection to ensure safe operation.

  8. Q: Can NJM2374AM be used in automotive applications? A: Yes, NJM2374AM is suitable for automotive applications as it can withstand a wide range of operating temperatures and has built-in protection against voltage transients.

  9. Q: What are the typical applications of NJM2374AM? A: NJM2374AM is commonly used in various electronic devices such as power supplies, battery chargers, audio amplifiers, and other circuits requiring stable voltage regulation.

  10. Q: Are there any recommended external components to use with NJM2374AM? A: Yes, to ensure proper operation and stability, it is recommended to use input and output capacitors as specified in the datasheet of NJM2374AM. These capacitors help filter noise and improve transient response.

Please note that these answers are general and may vary depending on the specific requirements and conditions of your technical solution. It is always advisable to refer to the datasheet and consult with an experienced engineer for accurate and application-specific information.