LM4980SDX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, low-distortion, stereo audio amplifier
• Package: SDIP (Shrink Dual In-Line Package)
• Essence: Provides high-quality amplification for audio signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Power Supply Voltage: ±2.5V to ±30V
• Output Power: 2 x 30W into 8Ω at ±20V
• Total Harmonic Distortion: 0.01% (typical) at 1kHz, 10W into 8Ω
• Input Sensitivity: 1.4Vrms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4980SDX/NOPB has a 14-pin configuration as follows:

```

---

| | --| V+ OUT1|-- Output 1 --| IN+ OUT2|-- Output 2 --| IN- GND|-- Ground --| V- VCC |-- Power Supply --| BIAS BYP|-- Bypass Capacitor --| NC NC |-- Not Connected |___________| ```

Functional Features

• High-fidelity audio amplification
• Low distortion and noise
• Wide power supply voltage range
• Thermal shutdown protection
• Short-circuit protection
• Internal mute function

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low distortion and noise levels - Versatile power supply voltage range - Built-in protection features

Disadvantages: - Limited output power compared to some other audio amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The LM4980SDX/NOPB is a stereo audio power amplifier that utilizes a class AB amplifier topology. It amplifies low-level audio signals from various sources and provides high-quality amplified output suitable for driving speakers or headphones. The amplifier operates by receiving input signals through the IN+ and IN- pins, which are then amplified and delivered to the OUT1 and OUT2 pins.

Detailed Application Field Plans

The LM4980SDX/NOPB is commonly used in various audio applications, including:

1. Home audio systems
2. Car audio systems
3. Portable audio devices
4. Professional audio equipment
5. Multimedia speakers

Detailed and Complete Alternative Models

1. TPA3116D2: Class D audio amplifier with similar power output and efficiency.
2. LM3886: High-performance audio amplifier with higher output power capability.
3. TDA7294: Audio amplifier with integrated volume control and thermal protection.

These alternative models offer different features and specifications, allowing users to choose based on their specific requirements.

In conclusion, the LM4980SDX/NOPB is a high-performance audio power amplifier IC that provides high-quality amplification for stereo audio signals. With its low distortion, wide power supply voltage range, and built-in protection features, it is suitable for various audio applications. However, it has limited output power compared to some alternatives and requires an external bypass capacitor for optimal performance.