LM4923MMX/NOPB

Product Overview

Category: Audio Amplifier
Use: Portable Devices, Headphone Amplifiers
Characteristics: Low Power Consumption, Small Package Size
Package: 14-pin TSSOP
Essence: Class AB Audio Amplifier
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Output Power: 80mW per channel into 32Ω at 3.6V
• Total Harmonic Distortion + Noise (THD+N): 0.1% at 65mW into 32Ω
• Quiescent Current: 4mA
• Shutdown Current: 0.6μA
• Supply Voltage Range: 2.7V to 5.5V
• Shutdown Control for Pop and Click Reduction
• External Gain Configuration Capability

Detailed Pin Configuration

1. SHDN (Pin 1) - Shutdown Control Input
2. INL (Pin 2) - Left Channel Input
3. VDD (Pin 3) - Positive Power Supply
4. GND (Pin 4) - Ground
5. BYP (Pin 5) - Bypass Capacitor Connection
6. OUTL (Pin 6) - Left Channel Output
7. OUTR (Pin 7) - Right Channel Output
8. PGND (Pin 8) - Power Ground
9. VREF (Pin 9) - Reference Voltage Output
10. GAIN (Pin 10) - Gain Configuration Input
11. INR (Pin 11) - Right Channel Input
12. BST (Pin 12) - Bootstrap Capacitor Connection
13. VDD (Pin 13) - Positive Power Supply
14. SHDN (Pin 14) - Shutdown Control Input

Functional Features

• Low Quiescent Current
• Shutdown Control for Pop and Click Reduction
• External Gain Configuration Capability
• Thermal Shutdown Protection
• Short-Circuit and Thermal Protection

Advantages and Disadvantages

Advantages: - Low power consumption - Small package size - Shutdown control for pop and click reduction

Disadvantages: - Limited output power compared to higher wattage amplifiers - Limited supply voltage range

Working Principles

The LM4923MMX/NOPB is a class AB audio amplifier designed to provide low power consumption while delivering high-quality audio output. It utilizes shutdown control to reduce pop and click noises during power on/off transitions and offers external gain configuration capability for flexibility in different applications.

Detailed Application Field Plans

The LM4923MMX/NOPB is ideal for use in portable devices such as smartphones, tablets, and portable media players, where space and power efficiency are crucial. It is also suitable for headphone amplifiers, providing clear and efficient audio amplification for personal listening experiences.

Detailed and Complete Alternative Models

• LM4863
• LM4881
• LM4950

This completes the requested content structure with approximately 450 words. If you need further details or modifications, feel free to ask!