MAX9728AETC+T

Product Overview

• Category: Audio Amplifier
• Use: The MAX9728AETC+T is a stereo audio amplifier designed for portable devices such as smartphones, tablets, and portable media players.
• Characteristics: It provides high-quality audio amplification with low distortion and noise. The device operates on a single 2.7V to 5.5V power supply, making it suitable for battery-powered applications. It also features a shutdown mode to conserve power when not in use.
• Package: The MAX9728AETC+T comes in a small 12-pin TDFN package, which is compact and ideal for space-constrained designs.
• Essence: This audio amplifier enhances the audio output of portable devices, delivering clear and powerful sound.
• Packaging/Quantity: The MAX9728AETC+T is typically sold in reels of 2500 units.

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: Up to 1.2W per channel into 8Ω load
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1.2W output power
• Signal-to-Noise Ratio (SNR): 100dB at 1kHz, 1.2W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9728AETC+T has the following pin configuration:

```

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| | --| VDD | --| GND | --| SD | --| SHDN | --| INL- | --| INL+ | --| INR- | --| INR+ | --| OUTR | --| OUTL | |___________| ```

Functional Features

• High-Quality Audio Amplification: The MAX9728AETC+T provides excellent audio amplification with low distortion and noise, resulting in clear and immersive sound reproduction.
• Low Power Consumption: The device operates on a low power supply voltage and features a shutdown mode to minimize power consumption when not in use.
• Small Form Factor: The compact TDFN package allows for easy integration into space-constrained designs, making it suitable for portable devices.

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low distortion and noise - Low power consumption - Compact form factor

Disadvantages: - Limited output power compared to larger audio amplifiers - May require additional components for certain applications

Working Principles

The MAX9728AETC+T is a class AB stereo audio amplifier. It amplifies the audio signal received from the input channels (INL+, INL-, INR+, INR-) and delivers the amplified signal to the respective output channels (OUTL, OUTR). The device operates on a single power supply voltage and utilizes internal circuitry to provide high-quality audio amplification while minimizing distortion and noise.

Detailed Application Field Plans

The MAX9728AETC+T is commonly used in various portable audio applications, including:

1. Smartphones: Enhancing the audio output quality of smartphones for better music playback and multimedia experiences.
2. Tablets: Improving the audio performance of tablets for enhanced gaming and movie watching experiences.
3. Portable Media Players: Providing high-quality audio amplification for portable media players, ensuring clear and powerful sound reproduction.

Detailed and Complete Alternative Models

• MAX9728AETC+ (Same as MAX9728AETC+T, but without tape and reel packaging)
• MAX9728AEBC+T (Similar to MAX9728AETC+T, but in a 10-pin μMAX package)
• MAX9728BETC+T (An upgraded version with improved specifications)

These alternative models offer similar functionality and can be considered based on specific design requirements and preferences.

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