MAX9720AEBE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo headphone amplifier
• Package: 16-pin TQFN (Thin Quad Flat No-Lead) package
• Essence: Amplifies audio signals to drive headphones or speakers
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 80mW per channel into 32Ω load
• Total Harmonic Distortion + Noise (THD+N): 0.01% at 1kHz, 10mW output power
• Signal-to-Noise Ratio (SNR): 100dB at 1kHz, 10mW output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9720AEBE+T has a total of 16 pins. The pin configuration is as follows:

1. SHDN - Shutdown Control Input
2. GND - Ground
3. INL- - Left Channel Input
4. INL+ - Left Channel Input
5. VDD - Positive Power Supply
6. BYP - Bypass Capacitor Connection
7. OUTL - Left Channel Output
8. OUTR - Right Channel Output
9. VREF - Reference Voltage Output
10. VCM - Common Mode Voltage Output
11. INR+ - Right Channel Input
12. INR- - Right Channel Input
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

• Low quiescent current consumption
• High power supply rejection ratio (PSRR)
• Short-circuit and thermal protection
• Pop-and-click suppression during power-up and shutdown

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Small package size - Built-in protection features

Disadvantages: - Limited output power compared to some other amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The MAX9720AEBE+T is a stereo headphone amplifier that operates on a low voltage supply. It utilizes a class AB amplifier architecture to provide high-quality audio amplification while minimizing power consumption. The device incorporates various protection features such as short-circuit and thermal protection, ensuring safe operation even under adverse conditions.

Detailed Application Field Plans

The MAX9720AEBE+T is commonly used in portable audio devices, such as smartphones, tablets, MP3 players, and portable gaming consoles. It is also suitable for applications where low-power consumption and small form factor are essential, such as wearable devices and wireless headphones.

Alternative Models

1. MAX9720AEBC+T: Similar specifications and features, but available in a 12-pin μMAX package.
2. MAX9720AEUE+T: Higher output power capability, suitable for driving higher impedance loads.
3. MAX9720AESE+T: Smaller package size (10-pin µDFN), ideal for space-constrained applications.

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

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