LM4675TL/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low power consumption - Small form factor - Wide voltage range operation

Package: TL package (Thin Shrink Small Outline Package)

Essence: The LM4675TL/NOPB is a high-performance audio amplifier IC designed for various audio applications. It provides excellent sound quality while consuming minimal power.

Packaging/Quantity: The LM4675TL/NOPB is available in a TL package and is typically sold in reels containing a specified quantity of units.

Specifications

The LM4675TL/NOPB has the following specifications:

• Power 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
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LM4675TL/NOPB has a total of 20 pins, each serving a specific function. The detailed pin configuration is as follows:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SD: Shutdown control input
4. INL: Left channel audio input
5. INR: Right channel audio input
6. BYP: Bypass capacitor connection
7. AGND: Analog ground reference
8. OUTL: Left channel audio output
9. OUTR: Right channel audio output
10. VDD: Power supply voltage input
11. GND: Ground reference
12. SD: Shutdown control input
13. INL: Left channel audio input
14. INR: Right channel audio input
15. BYP: Bypass capacitor connection
16. AGND: Analog ground reference
17. OUTL: Left channel audio output
18. OUTR: Right channel audio output
19. VDD: Power supply voltage input
20. GND: Ground reference

Functional Features

The LM4675TL/NOPB offers the following functional features:

• High-quality audio amplification for stereo applications
• Low power consumption, making it suitable for portable devices
• Wide operating voltage range allows flexibility in power supply selection
• Shutdown control for power-saving mode
• Built-in protection circuitry against short circuits and thermal overload

Advantages and Disadvantages

Advantages: - Excellent sound quality - Low power consumption - Small form factor - Wide voltage range operation - Built-in protection circuitry

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional external components for specific applications

Working Principles

The LM4675TL/NOPB operates as a class D audio amplifier, utilizing pulse-width modulation (PWM) techniques to convert the audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the desired audio output.

Detailed Application Field Plans

The LM4675TL/NOPB can be used in various audio applications, including but not limited to: - Portable audio devices (e.g., smartphones, tablets, MP3 players) - Bluetooth speakers - Gaming consoles - Automotive audio systems - Home theater systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4675TL/NOPB include: - LM4863 - TPA3116D2 - MAX98357A

These alternative models provide comparable audio amplification capabilities and can be considered as substitutes for the LM4675TL/NOPB in specific applications.

In conclusion, the LM4675TL/NOPB is a high-performance audio amplifier IC that offers excellent sound quality, low power consumption, and a small form factor. Its wide voltage range operation and built-in protection circuitry make it suitable for various audio applications. However, it has limited output power compared to higher wattage amplifiers and may require additional external components for specific applications.