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MAX9750AEUI+T
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MAX9750AEUI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio amplifier
  • Characteristics: High-performance, mono Class D audio power amplifier
  • Package: 28-pin TSSOP (Thin Shrink Small Outline Package)
  • Essence: Amplifies audio signals with high efficiency and low distortion
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.5V to 14V
  • Output Power: Up to 20W
  • Efficiency: Up to 90%
  • Total Harmonic Distortion + Noise (THD+N): <0.1%
  • Signal-to-Noise Ratio (SNR): >100dB
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9750AEUI+T has a total of 28 pins. The pin configuration is as follows:

  1. SD (Shutdown) - Shutdown control input
  2. IN- (Negative Input) - Negative audio input
  3. IN+ (Positive Input) - Positive audio input
  4. GND (Ground) - Ground reference
  5. VDD (Supply Voltage) - Positive supply voltage
  6. BYP (Bypass Capacitor) - Bypass capacitor connection
  7. BST (Bootstrap) - Bootstrap capacitor connection
  8. PVDD (Power Supply) - Power supply for the output stage
  9. OUT (Output) - Amplified audio output
  10. FB (Feedback) - Feedback connection for gain control
  11. AGND (Analog Ground) - Analog ground reference
  12. PGND (Power Ground) - Power ground reference
  13. NC (No Connection) - No electrical connection
  14. NC (No Connection) - No electrical connection
  15. NC (No Connection) - No electrical connection
  16. NC (No Connection) - No electrical connection
  17. NC (No Connection) - No electrical connection
  18. NC (No Connection) - No electrical connection
  19. NC (No Connection) - No electrical connection
  20. NC (No Connection) - No electrical connection
  21. NC (No Connection) - No electrical connection
  22. NC (No Connection) - No electrical connection
  23. NC (No Connection) - No electrical connection
  24. NC (No Connection) - No electrical connection
  25. NC (No Connection) - No electrical connection
  26. NC (No Connection) - No electrical connection
  27. NC (No Connection) - No electrical connection
  28. NC (No Connection) - No electrical connection

Functional Features

  • High-efficiency Class D operation for reduced power consumption and heat dissipation
  • Low distortion and high signal fidelity for superior audio quality
  • Shutdown mode for power-saving when not in use
  • Wide supply voltage range for versatile applications
  • Bypass capacitor connection for improved stability
  • Bootstrap capacitor connection for efficient driving of the output stage

Advantages and Disadvantages

Advantages: - High efficiency results in lower power consumption - Low distortion ensures high-quality audio reproduction - Versatile supply voltage range allows for various applications - Shutdown mode saves power when amplifier is not in use

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

Working Principles

The MAX9750AEUI+T is a mono Class D audio power amplifier. It operates by using pulse-width modulation (PWM) to convert the input audio signal into a series of high-frequency pulses. These pulses are then amplified by the output stage and filtered to reconstruct the original audio waveform. The Class D operation ensures high efficiency, as the output transistors are either fully on or fully off, minimizing power dissipation.

Detailed Application Field Plans

The MAX9750AEUI+T is suitable for a wide range of audio amplification applications, including:

  1. Portable speakers
  2. Home theater systems
  3. Car audio systems
  4. Multimedia devices
  5. Gaming consoles
  6. Musical instruments
  7. Public address systems
  8. Professional audio equipment

Detailed and Complete Alternative Models

  • MAX9744: 20W stereo Class D audio power amplifier
  • MAX98357A: 3.2W mono Class D audio amplifier with digital interface
  • TPA3116D2: 50W stereo Class D audio amplifier with integrated volume control
  • TAS5611A: 150W mono Class D audio amplifier with advanced protection features
  • LM3886: 68W mono Hi-Fi audio amplifier with high signal fidelity

These alternative models offer different power levels, features, and performance characteristics to suit various audio amplification requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MAX9750AEUI+T dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of MAX9750AEUI+T in technical solutions:

  1. Q: What is the MAX9750AEUI+T? A: The MAX9750AEUI+T is a high-power Class D audio amplifier IC designed for use in various audio applications.

  2. Q: What is the maximum power output of the MAX9750AEUI+T? A: The MAX9750AEUI+T can deliver up to 20W per channel into an 8-ohm load.

  3. Q: Can the MAX9750AEUI+T be used in portable devices? A: Yes, the MAX9750AEUI+T is suitable for portable devices as it operates from a single 4.5V to 14V power supply.

  4. Q: Does the MAX9750AEUI+T require external components for operation? A: Yes, the MAX9750AEUI+T requires a few external components such as input coupling capacitors, feedback resistors, and output filter components.

  5. Q: What is the input voltage range of the MAX9750AEUI+T? A: The MAX9750AEUI+T has an input voltage range of -0.3V to VDD + 0.3V.

  6. Q: Can the MAX9750AEUI+T operate in stereo mode? A: Yes, the MAX9750AEUI+T can operate in both stereo and mono modes depending on the application requirements.

  7. Q: Is thermal protection included in the MAX9750AEUI+T? A: Yes, the MAX9750AEUI+T features built-in thermal protection to prevent overheating and ensure safe operation.

  8. Q: What is the efficiency of the MAX9750AEUI+T? A: The MAX9750AEUI+T offers high efficiency, typically around 90%, which helps in reducing power consumption.

  9. Q: Can the MAX9750AEUI+T be used with different speaker impedance ratings? A: Yes, the MAX9750AEUI+T can drive speakers with impedance ranging from 4 ohms to 8 ohms.

  10. Q: Are there any application notes or reference designs available for the MAX9750AEUI+T? A: Yes, Maxim Integrated provides application notes and reference designs that can help in implementing the MAX9750AEUI+T in various technical solutions.

Please note that these answers are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.