LM49100GR/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low power consumption - Small form factor - Wide voltage range operation - Excellent audio quality

Package: 14-pin TSSOP (Thin Shrink Small Outline Package)

Essence: The LM49100GR/NOPB is a high-performance audio amplifier IC designed for various audio applications. It provides excellent audio quality while consuming low power and operating within a wide voltage range.

Packaging/Quantity: The LM49100GR/NOPB is available in a 14-pin TSSOP package. It is typically sold in reels containing multiple units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM49100GR/NOPB features the following pin configuration:

```

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| | --| VDD GND|-- Power supply pins --| INP INN|-- Audio input pins --| SHDN VDD|-- Shutdown control pin --| OUTL OUTR|-- Audio output pins |___________| ```

Functional Features

1. High-Quality Audio Amplification: The LM49100GR/NOPB delivers high-quality audio amplification with low distortion, ensuring clear and accurate sound reproduction.

2. Low Power Consumption: Designed for portable devices, this IC consumes minimal power, extending battery life without compromising audio performance.

3. Wide Voltage Range Operation: The LM49100GR/NOPB operates within a wide voltage range, making it suitable for various applications and power supply configurations.

4. Shutdown Control: The shutdown pin allows for easy power management, enabling the device to enter a low-power state when not in use.

Advantages

• High audio quality with low distortion
• Low power consumption for extended battery life
• Versatile voltage range operation
• Compact package size for space-constrained designs
• Easy integration into audio systems

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for full functionality
• Sensitive to improper circuit layout or noise interference

Working Principles

The LM49100GR/NOPB is based on a class AB amplifier architecture. It amplifies audio signals by modulating the input signal using a pair of complementary transistors. This design ensures efficient power usage and high fidelity audio reproduction.

Detailed Application Field Plans

The LM49100GR/NOPB is widely used in various audio applications, including but not limited to:

1. Mobile Devices: Smartphones, tablets, and portable media players benefit from its compact size, low power consumption, and high-quality audio amplification.

2. Personal Computers: It can be integrated into desktops, laptops, and all-in-one computers to enhance audio output for multimedia purposes.

3. Home Entertainment Systems: The IC can be utilized in audio receivers, soundbars, and home theater systems to improve audio performance and power efficiency.

4. Automotive Audio Systems: The LM49100GR/NOPB finds application in car audio amplifiers, providing clear and powerful sound reproduction in vehicles.

Detailed and Complete Alternative Models

1. LM4863: A similar audio amplifier IC with stereo output and built-in volume control.
2. TPA3116D2: A higher-power audio amplifier IC suitable for applications requiring more output wattage.
3. MAX9744: An audio amplifier IC with integrated digital volume control and automatic gain control (AGC) functionality.

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

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