LM4925SDX

Product Overview

Category: Integrated Circuit (IC)

Use: LM4925SDX is a stereo audio amplifier IC designed for portable devices such as smartphones, tablets, and portable media players. It provides high-quality audio amplification for small-sized speakers or headphones.

Characteristics: - Small package size - Low power consumption - High efficiency - Wide supply voltage range - Thermal shutdown protection

Package: LM4925SDX is available in a small outline package (SOP) with 8 pins.

Essence: The essence of LM4925SDX lies in its ability to provide high-quality audio amplification in a compact form factor, making it suitable for portable electronic devices.

Packaging/Quantity: LM4925SDX is typically sold in reels containing 2500 units per reel.

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

Pin Configuration

The LM4925SDX IC has the following pin configuration:

```

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| | --| VDD GND |-- Power Supply Pins --| INL OUTL |-- Left Channel Input and Output Pins --| INR OUTR |-- Right Channel Input and Output Pins --| SHDN |-- Shutdown Control Pin |___________| ```

Functional Features

1. High-Quality Audio Amplification: LM4925SDX provides clear and distortion-free audio amplification for stereo output.
2. Low Power Consumption: The IC operates efficiently with low power consumption, extending the battery life of portable devices.
3. Thermal Shutdown Protection: LM4925SDX incorporates thermal shutdown protection to prevent overheating and ensure safe operation.
4. Wide Supply Voltage Range: The IC can operate within a wide range of supply voltages, making it compatible with various power sources.

Advantages and Disadvantages

Advantages: - Compact size suitable for portable devices - High-quality audio amplification - Low power consumption - Thermal shutdown protection

Disadvantages: - Limited output power compared to larger audio amplifiers - May require additional external components for optimal performance

Working Principles

LM4925SDX operates as a class AB stereo audio amplifier. It takes the input audio signals from the left and right channels, amplifies them, and delivers the amplified signals to the corresponding output channels. The IC ensures high fidelity audio reproduction while maintaining low power consumption.

Application Field Plans

LM4925SDX finds applications in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles

Alternative Models

1. MAX98357A: Similar stereo audio amplifier IC with higher output power capability.
2. TPA3116D2: Class D audio amplifier IC with higher efficiency and power output.
3. NJM2073D: Dual-channel audio amplifier IC with similar characteristics and package size.

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

In conclusion, LM4925SDX is a compact and efficient stereo audio amplifier IC designed for portable devices. Its high-quality audio amplification, low power consumption, and thermal shutdown protection make it an ideal choice for various applications in the portable electronics industry.