LM4923LQX/NOPB

Product Overview

• Category: Audio Amplifier
• Use: Amplifying audio signals for various applications
• Characteristics: High-quality sound reproduction, low power consumption, compact size
• Package: QFN (Quad Flat No-Lead)
• Essence: Integrated audio amplifier with advanced features
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel
• Total Harmonic Distortion + Noise: 0.1% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4923LQX/NOPB has a total of 20 pins arranged as follows:

Pin 1: VDD Pin 2: GND Pin 3: SD Pin 4: INL- Pin 5: INL+ Pin 6: BYP Pin 7: OUTL Pin 8: PVDD Pin 9: PGND Pin 10: OUTR Pin 11: INR+ Pin 12: INR- Pin 13: SHDN Pin 14: BST Pin 15: VDD Pin 16: GND Pin 17: VDD Pin 18: GND Pin 19: VDD Pin 20: GND

Functional Features

• High-quality audio amplification for portable devices
• Low power consumption for extended battery life
• Integrated shutdown mode for power saving
• Short-circuit and thermal protection for enhanced reliability
• Wide operating voltage range for flexibility in various applications

Advantages and Disadvantages

Advantages: - High-quality sound reproduction - Low power consumption - Compact size for space-constrained designs - Integrated shutdown mode for power saving

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

Working Principles

The LM4923LQX/NOPB is a class AB audio amplifier that utilizes advanced circuitry to amplify audio signals. It operates by receiving an input audio signal through the INL+ and INR+ pins, which are then amplified and delivered to the OUTL and OUTR pins respectively. The BYP pin allows bypassing of the internal gain setting resistors, enabling customization of the gain levels.

Detailed Application Field Plans

The LM4923LQX/NOPB is suitable for a wide range of applications including:

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

Alternative Models

Here are some alternative models that can be considered as alternatives to the LM4923LQX/NOPB:

1. TPA3116D2 - Class D audio amplifier with higher output power
2. MAX98357A - Integrated digital audio amplifier with I2S interface
3. TDA7498E - Dual channel audio amplifier with higher output power
4. STA540 - Power amplifier with built-in volume control

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

Word count: 400 words