LM4861MX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: Surface Mount
• Essence: Amplifies audio signals for various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: 1.1W per channel (at 5V, 10% THD+N, 8Ω load)
• Total Harmonic Distortion + Noise (THD+N): 0.2% (typical)
• Shutdown Current: 0.6μA (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LM4861MX/NOPB has a total of 20 pins. The pin configuration is as follows:

1. VDD (Power Supply)
2. INL- (Left Channel Negative Input)
3. INL+ (Left Channel Positive Input)
4. SHUTDOWN (Shutdown Control)
5. BYPASS (Bypass Capacitor Connection)
6. GND (Ground)
7. OUTL (Left Channel Output)
8. OUTR (Right Channel Output)
9. INR+ (Right Channel Positive Input)
10. INR- (Right Channel Negative Input)
11. VDD (Power Supply)
12. NC (No Connection)
13. NC (No Connection)
14. NC (No Connection)
15. NC (No Connection)
16. NC (No Connection)
17. NC (No Connection)
18. NC (No Connection)
19. NC (No Connection)
20. NC (No Connection)

Functional Features

• High-quality audio amplification for stereo applications
• Low power consumption for extended battery life
• Shutdown mode for power-saving when not in use
• Bypass capacitor connection for improved audio performance
• Small package size for space-constrained designs

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Shutdown mode for power-saving - Improved audio performance with bypass capacitor connection - Compact package size

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Working Principles

The LM4861MX/NOPB is a stereo audio amplifier that operates by amplifying low-level audio signals from input sources. It utilizes a low-power architecture, allowing it to operate efficiently even with limited power supply voltage. The amplifier can deliver up to 1.1W of power per channel, making it suitable for small-scale audio applications.

The device features a shutdown mode, which reduces power consumption to a minimum when the amplifier is not in use. This feature is particularly useful in portable devices where battery life is crucial.

To enhance audio performance, the LM4861MX/NOPB includes a bypass capacitor connection. This connection helps reduce noise and distortion, resulting in cleaner and more accurate sound reproduction.

Detailed Application Field Plans

The LM4861MX/NOPB is commonly used in various audio applications, including:

1. Portable media players
2. Mobile phones
3. Tablets
4. Laptop computers
5. Bluetooth speakers
6. Gaming consoles
7. Personal audio devices

Its compact size, low power consumption, and decent output power make it an ideal choice for these portable and consumer electronic devices.

Detailed and Complete Alternative Models

1. LM4863MX/NOPB: Similar to LM4861MX/NOPB but with higher output power (1.3W per channel)
2. LM4864MX/NOPB: Stereo audio amplifier with integrated DC volume control
3. LM4865MX/NOPB: Mono audio amplifier with shutdown mode and low-power operation

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

In conclusion, the LM4861MX/NOPB is a high-performance, low-power stereo audio amplifier that finds applications in various portable and consumer electronic devices. Its compact size, low power consumption, and decent output power make it an excellent choice for audio amplification needs.