MAX9728BETC+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX9728BETC+ is a high-performance audio amplifier designed for use in various audio applications. It provides excellent sound quality and power efficiency, making it suitable for portable devices, headphones, and multimedia systems.

Characteristics: - High-quality audio amplification - Low power consumption - Small form factor - Wide voltage range operation - Thermal and short-circuit protection

Package: The MAX9728BETC+ is available in a compact 12-pin TQFN package, which ensures easy integration into different electronic designs.

Essence: This audio amplifier IC enhances the audio signal while maintaining low distortion and noise levels, resulting in an improved listening experience.

Packaging/Quantity: The MAX9728BETC+ is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.4W (into 8Ω load)
• Total Harmonic Distortion + Noise (THD+N): <0.03% (at 1kHz, 1.2W)
• Signal-to-Noise Ratio (SNR): >100dB (A-weighted)
• Shutdown Current: <1μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9728BETC+ features the following pin configuration:

1. VDD - Power supply input
2. SHDN - Shutdown control input
3. GND - Ground reference
4. IN+ - Positive audio input
5. IN- - Negative audio input
6. BYP - Bypass capacitor connection
7. OUT - Audio output
8. GND - Ground reference
9. GND - Ground reference
10. VDD - Power supply input
11. GND - Ground reference
12. GND - Ground reference

Functional Features

• High-quality audio amplification with low distortion and noise levels
• Wide voltage range operation allows flexibility in power supply selection
• Thermal and short-circuit protection ensures safe operation
• Shutdown control feature for power-saving mode
• Bypass capacitor connection for improved audio performance

Advantages and Disadvantages

Advantages: - Excellent sound quality - Low power consumption - Compact size for easy integration - Wide operating voltage range - Protection features enhance reliability

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for optimal performance

Working Principles

The MAX9728BETC+ operates as a class AB audio amplifier. It amplifies the audio signal received at the input pins (IN+ and IN-) and delivers it to the output pin (OUT). The amplifier circuitry ensures minimal distortion and noise, resulting in high-fidelity audio reproduction.

Detailed Application Field Plans

The MAX9728BETC+ is suitable for various audio applications, including: 1. Portable devices such as smartphones, tablets, and portable media players 2. Headphone amplifiers for improved audio quality 3. Multimedia systems, including speakers and soundbars 4. Automotive audio systems 5. Gaming consoles and accessories

Detailed and Complete Alternative Models

1. TPA3116D2 - A high-performance audio amplifier IC with similar characteristics and power output.
2. LM386 - A popular low-power audio amplifier IC suitable for small-scale applications.
3. TAS5630 - A digital audio amplifier IC with advanced features and high power efficiency.

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

In conclusion, the MAX9728BETC+ is a high-performance audio amplifier IC that offers excellent sound quality, low power consumption, and compact size. Its wide range of applications and availability of alternative models make it a versatile choice for various audio amplification needs.