LM4670ITLX/NOPB

Product Overview

• Category: Integrated Circuit
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: Thin QFN (Quad Flat No-Lead)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: 1.2W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise: 0.03% at 1kHz, 1.2W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4670ITLX/NOPB features a 24-pin Thin QFN package with the following pin configuration:

1. VDD
2. GND
3. SDZ
4. SDA
5. SCL
6. NC
7. NC
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. LOUT
23. ROUT
24. SHUTDOWN

Functional Features

• High-quality audio amplification for stereo applications
• Low-power consumption for extended battery life
• Integrated shutdown mode for power-saving when not in use
• I2C control interface for easy integration and control
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Compact form factor - Easy integration with I2C control interface

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for full functionality

Working Principles

The LM4670ITLX/NOPB is a stereo audio amplifier that operates by amplifying the input audio signal received through the I2C control interface. It utilizes a low-power architecture to minimize power consumption while delivering high-quality audio output. The amplifier can be controlled and configured using the I2C interface, allowing for easy integration into various audio systems.

Detailed Application Field Plans

The LM4670ITLX/NOPB is suitable for a wide range of applications, including:

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

Detailed and Complete Alternative Models

1. LM4863: Stereo 2.2W Audio Power Amplifier
2. TPA3116D2: 50W Stereo Class D Audio Amplifier
3. MAX9744: 20W Stereo Class D Audio Power Amplifier
4. TDA7498E: 160W+160W Dual BTL Class-D Audio Amplifier

These alternative models offer different power outputs and features, providing options for various audio amplification requirements.

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