LM4819MMX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: Low voltage, mono audio amplifier
• Package: Miniature surface-mount package
• Essence: Enhances audio signals for various applications
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Operating Voltage: 2.7V to 5.5V
• Output Power: Up to 1W
• Total Harmonic Distortion: 0.1% (typical)
• Shutdown Current: 0.01μA (typical)
• Package Type: 10-pin VSSOP

Pin Configuration

The LM4819MMX/NOPB has the following pin configuration:

Pin 1: Shutdown Pin 2: Bypass Capacitor Pin 3: Input Pin 4: GND Pin 5: Output Pin 6: Gain Setting Pin 7: Gain Setting Pin 8: Gain Setting Pin 9: VDD Pin 10: Bypass Capacitor

Functional Features

• Single-ended mono audio amplifier
• Low voltage operation suitable for portable devices
• Excellent power supply rejection ratio
• Thermal shutdown protection
• Pop and click suppression during power-up and shutdown

Advantages and Disadvantages

Advantages: - Low voltage operation extends battery life - Small package size allows for compact designs - High-quality audio amplification - Protection features ensure reliable performance

Disadvantages: - Mono output limits stereo sound reproduction - Limited output power compared to higher wattage amplifiers

Working Principles

The LM4819MMX/NOPB is a low voltage audio amplifier designed to enhance audio signals in portable devices. It operates on a low voltage supply, making it suitable for battery-powered applications. The amplifier accepts an input audio signal and amplifies it to drive a speaker or headphone.

The device incorporates thermal shutdown protection, preventing damage due to excessive heat. It also features pop and click suppression during power-up and shutdown, ensuring smooth transitions and eliminating any audible disturbances.

Detailed Application Field Plans

The LM4819MMX/NOPB is widely used in various applications, including:

1. Portable audio devices: MP3 players, smartphones, tablets
2. Personal computers and laptops
3. Gaming consoles and handheld gaming devices
4. Bluetooth speakers and wireless headphones
5. Automotive audio systems

Alternative Models

• LM4861MM/NOPB
• TPA2005D1PWPR
• MAX9814ETD+
• NJM2073D

These alternative models offer similar functionality and can be considered as replacements for the LM4819MMX/NOPB in specific applications.

In conclusion, the LM4819MMX/NOPB is a low voltage mono audio amplifier that provides high-quality audio amplification for portable devices. Its small package size, low voltage operation, and protection features make it a popular choice in various applications.