LM4929MMX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low power consumption - Small package size - Wide supply voltage range - Excellent audio quality

Package: 10-pin MSOP (Mini Small Outline Package)

Essence: The LM4929MMX/NOPB is a high-performance audio amplifier IC designed for various audio applications, including portable devices, smartphones, tablets, and multimedia systems.

Packaging/Quantity: The LM4929MMX/NOPB is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.2W
• Total Harmonic Distortion (THD): 0.1%
• Signal-to-Noise Ratio (SNR): 95dB
• Shutdown Current: 0.01µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4929MMX/NOPB has the following pin configuration:

1. INL-: Negative input for left channel
2. INL+: Positive input for left channel
3. GND: Ground
4. VDD: Power supply voltage
5. BYP: Bypass capacitor connection
6. SHDN: Shutdown control input
7. OUTL: Left channel audio output
8. OUTR: Right channel audio output
9. INR+: Positive input for right channel
10. INR-: Negative input for right channel

Functional Features

• Single-ended stereo audio amplifier
• Differential inputs for improved noise rejection
• Shutdown mode for power saving
• Short-circuit and thermal protection
• Pop and click suppression during power-up and shutdown

Advantages and Disadvantages

Advantages: - High-quality audio output - Low power consumption - Small package size for space-constrained applications - Wide supply voltage range for compatibility with various devices - Built-in protection features for enhanced reliability

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for proper operation

Working Principles

The LM4929MMX/NOPB is a class AB audio amplifier that amplifies the input audio signals from left and right channels. It utilizes differential inputs to reject common-mode noise and improve audio quality. The amplifier operates in single-ended mode, providing stereo audio output.

The device can be controlled using the SHDN pin, which allows the amplifier to enter a low-power shutdown mode when not in use. It also incorporates protection features such as short-circuit and thermal protection to ensure safe operation.

Detailed Application Field Plans

The LM4929MMX/NOPB is suitable for a wide range of audio applications, including but not limited to: - Portable devices (e.g., MP3 players, portable speakers) - Smartphones and tablets - Multimedia systems - Gaming consoles - Automotive audio systems

Detailed and Complete Alternative Models

1. LM4863M/NOPB: Dual 2.2W Audio Amplifier
2. LM386N-4/NOPB: Low Voltage Audio Power Amplifier
3. TPA3110D2PWP: Stereo Class D Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4929MMX/NOPB based on specific application requirements.

In conclusion, the LM4929MMX/NOPB is a high-performance audio amplifier IC designed for various audio applications. Its small package size, low power consumption, and excellent audio quality make it an ideal choice for portable devices, smartphones, tablets, and multimedia systems. With its wide supply voltage range and built-in protection features, the LM4929MMX/NOPB offers reliable and high-quality audio amplification.