LM4930LQ/NOPB

Product Overview

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

Specifications

• Power Supply Voltage: 2.5V - 5.5V
• Output Power: 1.2W per channel (8Ω load, 5V supply)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (1W, 1kHz)
• Signal-to-Noise Ratio (SNR): 95dB (A-weighted)
• Shutdown Current: <1μA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4930LQ/NOPB has a total of 24 pins. The pin configuration is as follows:

1. VDD
2. GND
3. SDZ
4. SDA
5. SCL
6. INT
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. SHDN

Functional Features

• High-quality stereo audio amplification
• Low power consumption
• Built-in shutdown mode for power saving
• I2C control interface for easy integration with microcontrollers
• Short-circuit and thermal protection

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Compact form factor - Shutdown mode for power saving - Easy integration with microcontrollers

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system implementation

Working Principles

The LM4930LQ/NOPB is a stereo audio amplifier that operates by amplifying the input audio signals received from a source. It utilizes a low-power architecture, allowing it to provide high-quality audio amplification while consuming minimal power. The amplifier can be controlled using the I2C interface, enabling easy integration with microcontrollers.

Detailed Application Field Plans

The LM4930LQ/NOPB is suitable for various applications where compact size and low power consumption are essential. Some potential application fields include:

1. Portable audio devices (e.g., smartphones, tablets, MP3 players)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. Bluetooth speakers
4. Gaming consoles
5. Automotive infotainment systems

Detailed and Complete Alternative Models

1. LM4863LQ/NOPB - Stereo Class AB Audio Amplifier
2. LM386N-1/NOPB - Low Voltage Audio Power Amplifier
3. TPA3116D2PWPR - Stereo Class D Audio Amplifier
4. MAX9744ETP+T - Mono Class D Speaker Amplifier
5. TAS5717PHPR - Digital Input Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4930LQ/NOPB based on specific requirements and design considerations.

In conclusion, the LM4930LQ/NOPB is a high-performance, low-power stereo audio amplifier that provides excellent audio amplification in a compact form factor. Its features, such as low power consumption and I2C control interface, make it suitable for various portable audio and consumer electronic applications. However, designers should consider the limited output power and external component requirements when selecting this amplifier for their specific application.