NJR Corporation/NJRC
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NJU7262M50
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NJU7262M50

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: Low-power, high-performance audio amplifier
  • Package: SOP-8
  • Essence: Single-channel audio amplifier IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Operating Voltage: 2.5V - 5.5V
  • Output Power: 1W (at 5V, 10% THD+N, 8Ω load)
  • Total Harmonic Distortion + Noise: 0.1% (typical)
  • Shutdown Current: 0.1μA (typical)
  • Input Impedance: 32kΩ (typical)
  • Gain: 20dB (fixed)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NJU7262M50 has a SOP-8 package with the following pin configuration:

  1. VDD: Power supply voltage input
  2. IN+: Non-inverting input
  3. IN-: Inverting input
  4. GND: Ground
  5. SHDN: Shutdown control input
  6. OUT: Output
  7. NC: No connection
  8. VSS: Negative power supply voltage input

Functional Features

  • Low-power consumption
  • High output power
  • Wide operating voltage range
  • Fixed gain for simplified design
  • Shutdown mode for power saving
  • Low total harmonic distortion and noise

Advantages

  • Compact SOP-8 package for space-constrained applications
  • Wide operating temperature range for versatile usage
  • Low shutdown current for extended battery life
  • High-quality audio output with low distortion and noise

Disadvantages

  • Fixed gain may not be suitable for all applications requiring variable gain
  • Limited output power may not be sufficient for high-power audio systems

Working Principles

The NJU7262M50 is a single-channel audio amplifier IC designed to amplify low-power audio signals. It operates within a wide voltage range of 2.5V to 5.5V, making it suitable for various portable and battery-powered devices. The IC features a fixed gain of 20dB, ensuring consistent amplification without the need for external components.

By connecting the audio input signal to the non-inverting input (IN+) and providing a negative feedback through the inverting input (IN-), the NJU7262M50 amplifies the audio signal and delivers it at the output pin (OUT). The shutdown control input (SHDN) allows the IC to enter a low-power mode when not in use, reducing power consumption to a minimum.

Detailed Application Field Plans

The NJU7262M50 is commonly used in the following applications:

  1. Portable audio devices: MP3 players, smartphones, tablets
  2. Wearable devices: Smartwatches, fitness trackers
  3. Home entertainment systems: Soundbars, multimedia speakers
  4. Automotive audio systems: Car stereos, amplifiers
  5. Industrial equipment: Intercoms, public address systems

Detailed and Complete Alternative Models

  1. TPA301: Audio amplifier IC with adjustable gain and higher output power
  2. LM386: Low-power audio amplifier IC with variable gain and compact package
  3. MAX9744: Class D audio amplifier IC with high efficiency and integrated volume control

These alternative models offer different features and specifications, allowing designers to choose the most suitable option based on their specific requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av NJU7262M50 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of NJU7262M50 in technical solutions:

  1. Q: What is NJU7262M50? A: NJU7262M50 is a specific integrated circuit (IC) manufactured by New Japan Radio Co., Ltd. It is commonly used in various technical solutions.

  2. Q: What are the key features of NJU7262M50? A: NJU7262M50 is a low-power, high-precision operational amplifier with rail-to-rail input/output capabilities. It also has a wide operating voltage range and low noise characteristics.

  3. Q: In what applications can NJU7262M50 be used? A: NJU7262M50 can be used in a wide range of applications, including sensor signal conditioning, audio amplification, data acquisition systems, and portable devices.

  4. Q: What is the power supply voltage range for NJU7262M50? A: The power supply voltage range for NJU7262M50 is typically between 2.7V and 5.5V.

  5. Q: What is the typical gain bandwidth product (GBW) of NJU7262M50? A: The typical gain bandwidth product of NJU7262M50 is around 1 MHz.

  6. Q: Can NJU7262M50 operate with a single power supply? A: Yes, NJU7262M50 can operate with a single power supply, making it suitable for battery-powered applications.

  7. Q: Does NJU7262M50 have built-in protection features? A: Yes, NJU7262M50 includes built-in protection features such as overcurrent protection and thermal shutdown.

  8. Q: What is the input offset voltage of NJU7262M50? A: The input offset voltage of NJU7262M50 is typically very low, in the range of microvolts.

  9. Q: Can NJU7262M50 drive capacitive loads? A: Yes, NJU7262M50 has a high output current capability, allowing it to drive capacitive loads without significant degradation in performance.

  10. Q: Is NJU7262M50 available in different package options? A: Yes, NJU7262M50 is available in various package options, including SOP8 and DMP8, providing flexibility for different design requirements.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements.