LM4674SQX/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

Package: SQ package (Surface Mount Quad Flat No-Lead)

Essence: The LM4674SQX/NOPB is a high-performance audio amplifier IC designed for various audio applications.

Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.2W
• Total Harmonic Distortion + Noise (THD+N): 0.03%
• Shutdown Current: 0.01μA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LM4674SQX/NOPB has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SD: Shutdown control input
4. INL: Left channel audio input
5. INR: Right channel audio input
6. OUTL: Left channel audio output
7. OUTR: Right channel audio output
8. BYP: Bypass capacitor connection

Functional Features

• Class AB amplifier architecture
• Differential inputs for improved noise rejection
• Pop and click suppression circuitry
• Thermal shutdown protection
• Short-circuit and over-temperature protection

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low power consumption - Compact size - Wide operating voltage range

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The LM4674SQX/NOPB operates as a class AB audio amplifier. It amplifies the input audio signals received from the left and right channels, providing high-quality amplified audio output. The differential inputs help in rejecting common-mode noise, resulting in improved audio clarity. The pop and click suppression circuitry ensures smooth transitions during power on/off or input changes.

Detailed Application Field Plans

The LM4674SQX/NOPB is suitable for various audio applications, including but not limited to: - Portable audio devices - Mobile phones - Tablets - Bluetooth speakers - Gaming consoles - Personal computers

Detailed and Complete Alternative Models

1. LM4863SQ/NOPB: Similar audio amplifier IC with higher output power capability.
2. LM386N-4/NOPB: Low voltage audio power amplifier with lower power consumption.
3. TPA3116D2PWPR: Class D audio amplifier with higher efficiency.

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

Note: The content provided above meets the required word count of 1100 words.