LM4927SDX

Introduction

The LM4927SDX is a versatile audio amplifier belonging to the category of integrated circuits (ICs) used for audio applications. This device offers a range of characteristics and features that make it suitable for various audio amplification needs.

Basic Information Overview

• Category: Integrated Circuits (ICs)
• Use: Audio Amplification
• Characteristics: High-quality sound output, compact design, low power consumption
• Package: 14-WSON (3x4)
• Essence: The LM4927SDX is designed to provide high-fidelity audio amplification in a compact form factor, making it ideal for portable and space-constrained applications.
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Output Power: 1.35W per channel into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.2W into 8Ω
• SNR (Signal-to-Noise Ratio): 95dB (typical) at 1kHz, 1.2W into 8Ω
• Operating Voltage Range: 2.7V to 5.5V
• Shutdown Current: 0.01μA (typical)

Detailed Pin Configuration

The LM4927SDX features a 14-pin WSON package with the following pin configuration: 1. VDD 2. SD 3. IN- 4. IN+ 5. GND 6. SHDN 7. BYP 8. OUTL 9. OUTR 10. BST 11. PGND 12. AGND 13. VDD 14. VDD

Functional Features

• Low Shutdown Current: The LM4927SDX features an ultra-low shutdown current, making it suitable for battery-powered applications.
• Integrated Boost Converter: The built-in boost converter allows the device to operate efficiently from low supply voltages.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection to prevent damage from excessive heat.

Advantages and Disadvantages

Advantages

• Compact form factor
• High-quality audio output
• Low power consumption
• Integrated boost converter for efficient operation at low voltages

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for full functionality

Working Principles

The LM4927SDX operates by amplifying the input audio signal and delivering it to the connected speakers or headphones. It utilizes a boost converter to efficiently generate the required voltage for audio amplification while maintaining low power consumption during operation.

Detailed Application Field Plans

The LM4927SDX is well-suited for a variety of applications, including: - Portable audio devices - Headphone amplifiers - Multimedia speakers - Mobile phones and tablets - Gaming consoles

Detailed and Complete Alternative Models

• LM4863: A higher-power audio amplifier with similar features but higher output capability.
• LM4881: An alternative audio amplifier with integrated volume control and stereo enhancement features.

In conclusion, the LM4927SDX is a versatile audio amplifier IC with a compact design, high-quality sound output, and low power consumption, making it suitable for a wide range of audio applications.

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