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LM4881MX/NOPB
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Amplifier
Characteristics: - High-performance audio amplifier - Low power consumption - Small package size - Wide supply voltage range - Excellent audio quality
Package: SOP-8 (Small Outline Package)
Essence: The LM4881MX/NOPB is a high-performance audio amplifier IC designed for various audio applications. It provides excellent audio quality while consuming low power and comes in a small package, making it suitable for space-constrained designs.
Packaging/Quantity: The LM4881MX/NOPB is available in a SOP-8 package. Each package contains one LM4881MX/NOPB IC.
Specifications
- Supply Voltage Range: 2.5V to 5.5V
- Output Power: Up to 1W per channel
- Total Harmonic Distortion (THD): <0.1%
- Signal-to-Noise Ratio (SNR): >90dB
- Shutdown Current: <1μA
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The LM4881MX/NOPB IC has the following pin configuration:
___________
| |
NC |1 8| VDD
IN- |2 7| SHUTDOWN
IN+ |3 6| OUT-
GND |4 5| OUT+
|___________|
Functional Features
- High-quality audio amplification: The LM4881MX/NOPB provides clear and accurate audio amplification, ensuring faithful reproduction of sound.
- Low power consumption: With its efficient design, the LM4881MX/NOPB minimizes power consumption, making it suitable for battery-powered devices.
- Shutdown mode: The SHUTDOWN pin allows the IC to enter a low-power shutdown mode, reducing power consumption when not in use.
- Short-circuit and thermal protection: The LM4881MX/NOPB incorporates built-in protection mechanisms to prevent damage from short circuits and excessive heat.
Advantages and Disadvantages
Advantages: - High audio quality - Low power consumption - Small package size - Wide supply voltage range - Built-in protection mechanisms
Disadvantages: - Limited output power compared to higher wattage amplifiers
Working Principles
The LM4881MX/NOPB is a class AB audio amplifier that amplifies low-power audio signals. It utilizes a combination of transistors and resistors to amplify the input signal while maintaining low distortion and high fidelity. The IC operates within a specified supply voltage range and provides a regulated amplified output signal.
Detailed Application Field Plans
The LM4881MX/NOPB is suitable for various audio applications, including but not limited to: - Portable audio devices (e.g., MP3 players, smartphones) - Headphone amplifiers - Multimedia speakers - Personal computer audio systems - Home theater systems
Detailed and Complete Alternative Models
- LM4881M: Similar to LM4881MX/NOPB but available in a different package (SOIC-8).
- LM4861M: Higher output power version of LM4881MX/NOPB (up to 2W per channel).
- LM386N-4: Lower power version with simplified circuitry (up to 325mW output power).
These alternative models offer similar functionality and can be considered based on specific design requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LM4881MX/NOPB en soluciones técnicas
Q: What is the maximum power output of LM4881MX/NOPB? A: The LM4881MX/NOPB has a maximum power output of 1.1W per channel into an 8Ω load.
Q: What is the supply voltage range for LM4881MX/NOPB? A: The supply voltage range for LM4881MX/NOPB is 2.7V to 5.5V.
Q: Can LM4881MX/NOPB be used in portable applications? A: Yes, LM4881MX/NOPB is suitable for portable applications due to its low supply voltage and low power consumption.
Q: Does LM4881MX/NOPB require external coupling capacitors? A: No, LM4881MX/NOPB does not require external coupling capacitors, which simplifies the design.
Q: What is the typical quiescent current of LM4881MX/NOPB? A: The typical quiescent current of LM4881MX/NOPB is 4.6mA.
Q: Is LM4881MX/NOPB suitable for headphone amplification? A: Yes, LM4881MX/NOPB can be used for driving headphones as well as speakers.
Q: What is the typical total harmonic distortion (THD) of LM4881MX/NOPB? A: The typical THD of LM4881MX/NOPB is 0.2% at 1kHz and 10mW into an 8Ω load.
Q: Can LM4881MX/NOPB operate in a single-supply configuration? A: Yes, LM4881MX/NOPB can operate in a single-supply configuration, making it versatile for various applications.
Q: What is the shutdown current of LM4881MX/NOPB? A: The shutdown current of LM4881MX/NOPB is typically 0.15µA.
Q: Does LM4881MX/NOPB have built-in thermal shutdown protection? A: Yes, LM4881MX/NOPB features built-in thermal shutdown protection to prevent overheating.