LM4674ATL/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel
• Total Harmonic Distortion + Noise: 0.03% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4674ATL/NOPB IC has a total of 20 pins. The pin configuration is as follows:

1. VDD
2. GND
3. SD
4. INL-
5. INL+
6. BYP
7. OUTL
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. N.C.
16. OUTR
17. BYN
18. INR+
19. INR-
20. VDD

Functional Features

• High-quality audio amplification for stereo applications
• Low power consumption for extended battery life
• Wide operating voltage range for flexibility in various applications
• Minimal distortion and noise for clear audio reproduction
• Shutdown mode for power-saving when not in use

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Compact package size - Low power consumption - Wide operating voltage range

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

Working Principles

The LM4674ATL/NOPB is a stereo audio amplifier that operates by amplifying the input audio signals received on the INL+ and INR+ pins. The amplified signals are then sent to the OUTL and OUTR pins, respectively, for output to the speakers or headphones. The BYP pin allows for bypassing the internal gain stage, providing flexibility in the amplification process.

Detailed Application Field Plans

The LM4674ATL/NOPB is commonly used in various audio applications, including:

1. Portable audio devices such as smartphones, tablets, and MP3 players
2. Laptop and desktop computers
3. Bluetooth speakers and wireless audio systems
4. Gaming consoles and handheld gaming devices
5. Automotive audio systems
6. Home theater systems

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier
2. TPA3110D2: 15W Stereo Class-D Audio Power Amplifier
3. MAX9744: 20W Stereo Class D Speaker Amplifier
4. TDA7266: Dual Bridge Audio Amplifier - 7W+7W

These alternative models offer similar functionality and can be considered as alternatives to the LM4674ATL/NOPB based on specific requirements and application needs.

In conclusion, the LM4674ATL/NOPB is a high-performance, low-power stereo audio amplifier IC. It provides clear and high-quality audio amplification in a compact package, making it suitable for a wide range of audio applications. While it may have limitations in terms of output power, it offers advantages such as low power consumption and a wide operating voltage range.