MAX9890BETA+T

Overview

• Category: Integrated Circuit
• Use: Audio Amplifier
• Characteristics: High-performance, low-power consumption
• Package: TQFN-16
• Essence: Single-Supply, Class AB, Stereo Headphone Amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: 80mW per channel (at 1% THD+N)
• Total Harmonic Distortion plus Noise (THD+N): 0.03% (typical)
• Quiescent Current: 3.5mA (typical)
• Shutdown Current: 0.01μA (typical)

Pin Configuration

The MAX9890BETA+T features a total of 16 pins, which are configured as follows:

1. VDD
2. SHDN
3. GND
4. OUTL
5. INL-
6. INL+
7. BYP
8. BIAS
9. NC
10. OUTR
11. INR+
12. INR-
13. VREF
14. NC
15. NC
16. NC

Functional Characteristics

• Single-supply operation
• Class AB amplifier architecture
• Low quiescent current
• Thermal shutdown protection
• Short-circuit and overcurrent protection
• Pop-and-click suppression during power-up and power-down

Advantages and Disadvantages

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

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Applicable Range of Products

The MAX9890BETA+T is suitable for a wide range of audio applications, including: - Portable media players - Smartphones and tablets - Laptop computers - Gaming consoles - Personal audio devices

Working Principles

The MAX9890BETA+T operates as a stereo headphone amplifier by amplifying the audio signal received from the input source. It utilizes a single-supply, Class AB architecture to provide high-quality audio amplification while minimizing power consumption.

Detailed Application Field Plans

1. Portable Media Players: The MAX9890BETA+T can be used to enhance the audio output of portable media players, providing users with a better listening experience.
2. Smartphones and Tablets: By integrating the MAX9890BETA+T into smartphones and tablets, manufacturers can improve the audio quality of these devices, making them more appealing to consumers.
3. Laptop Computers: Incorporating the MAX9890BETA+T into laptop computers allows for improved audio performance, enhancing the overall multimedia experience for users.
4. Gaming Consoles: The MAX9890BETA+T can be utilized in gaming consoles to deliver high-quality audio output, immersing gamers in a more realistic gaming environment.
5. Personal Audio Devices: By integrating the MAX9890BETA+T into personal audio devices such as MP3 players or headphones, manufacturers can provide users with enhanced audio quality on-the-go.

Detailed Alternative Models

• MAX9814
• MAX97220
• MAX98357A

5 Common Technical Questions and Answers

1. Q: What is the maximum supply voltage for the MAX9890BETA+T? A: The maximum supply voltage is 5.5V.

2. Q: Does the MAX9890BETA+T support stereo audio output? A: Yes, the MAX9890BETA+T is designed for stereo headphone amplification.

3. Q: What is the typical quiescent current of the MAX9890BETA+T? A: The typical quiescent current is 3.5mA.

4. Q: Does the MAX9890BETA+T have built-in protection features? A: Yes, the MAX9890BETA+T includes thermal shutdown, short-circuit, and overcurrent protection.

5. Q: Can the MAX9890BETA+T be used in high-power audio applications? A: No, the MAX9890BETA+T is not suitable for high-power audio applications due to its limited output power.

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