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MAX9750BETI+T
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MAX9750BETI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: High-performance, stereo Class D audio amplifier
  • Package: 28-pin TQFN (Thin Quad Flat No-Lead) package
  • Essence: Provides high-quality audio amplification in a compact form factor
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Power Supply Voltage Range: 4.5V to 14V
  • Output Power: 2 x 20W into 8Ω at 10% THD+N
  • Efficiency: Up to 90%
  • Total Harmonic Distortion + Noise (THD+N): 0.1%
  • Signal-to-Noise Ratio (SNR): 100dB
  • Shutdown Current: <1µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9750BETI+T has a total of 28 pins. The pin configuration is as follows:

  1. SD (Shutdown)
  2. GND (Ground)
  3. INL- (Left Channel Negative Input)
  4. INL+ (Left Channel Positive Input)
  5. VDD (Power Supply)
  6. INR+ (Right Channel Positive Input)
  7. INR- (Right Channel Negative Input)
  8. BST (Bootstrap)
  9. PVDD (Power Supply)
  10. PGND (Ground)
  11. OUTL- (Left Channel Negative Output)
  12. OUTL+ (Left Channel Positive Output)
  13. OUTR+ (Right Channel Positive Output)
  14. OUTR- (Right Channel Negative Output)
  15. AGND (Analog Ground)
  16. BYP (Bypass)
  17. MUTE (Mute Control)
  18. SCL (I2C Serial Clock)
  19. SDA (I2C Serial Data)
  20. VDDIO (I2C Interface Power Supply)
  21. NC (No Connection)
  22. NC (No Connection)
  23. NC (No Connection)
  24. NC (No Connection)
  25. NC (No Connection)
  26. NC (No Connection)
  27. NC (No Connection)
  28. NC (No Connection)

Functional Features

  • High-quality stereo audio amplification
  • Class D amplifier architecture for high efficiency
  • Low total harmonic distortion and noise
  • Shutdown mode for power saving
  • I2C interface for control and configuration

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Compact package size - Efficient power consumption - Low distortion and noise levels - Flexible control options through I2C interface

Disadvantages: - Limited output power compared to larger amplifiers - Requires external components for proper operation

Working Principles

The MAX9750BETI+T is a stereo Class D audio amplifier that utilizes pulse-width modulation (PWM) to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the desired audio output. The Class D architecture ensures high efficiency by minimizing power dissipation.

The amplifier can be controlled and configured using the I2C interface, allowing for adjustments such as volume control, mute function, and other settings. The shutdown mode enables power-saving when the amplifier is not in use.

Detailed Application Field Plans

The MAX9750BETI+T is suitable for various audio amplification applications, including:

  1. Portable speakers
  2. Home theater systems
  3. Automotive audio systems
  4. Gaming consoles
  5. Personal computers
  6. Mobile devices

Detailed and Complete Alternative Models

  1. TPA3116D2: Class D audio amplifier with similar power output and efficiency.
  2. LM3886: High-performance audio amplifier with higher output power capability.
  3. TAS5630: Digital input Class D amplifier with advanced features and high fidelity.

These alternative models offer different specifications and features, providing options for various audio amplification requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق MAX9750BETI+T في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of MAX9750BETI+T in technical solutions:

  1. Q: What is the MAX9750BETI+T? A: The MAX9750BETI+T is a high-power Class D audio amplifier IC designed for audio applications.

  2. Q: What is the maximum power output of the MAX9750BETI+T? A: The MAX9750BETI+T can deliver up to 20W per channel into an 8-ohm load.

  3. Q: What is the input voltage range of the MAX9750BETI+T? A: The input voltage range of the MAX9750BETI+T is typically between 4.5V and 14V.

  4. Q: Can the MAX9750BETI+T operate with a single power supply? A: Yes, the MAX9750BETI+T can operate with a single power supply, typically ranging from 8V to 14V.

  5. Q: Does the MAX9750BETI+T require any external components for operation? A: Yes, the MAX9750BETI+T requires a few external components such as capacitors, resistors, and inductors for proper operation.

  6. Q: What is the efficiency of the MAX9750BETI+T? A: The MAX9750BETI+T has a high efficiency of up to 90%, making it suitable for battery-powered applications.

  7. Q: Can the MAX9750BETI+T be used in stereo or mono configurations? A: Yes, the MAX9750BETI+T can be used in both stereo and mono configurations, depending on the application requirements.

  8. Q: What is the thermal shutdown feature of the MAX9750BETI+T? A: The MAX9750BETI+T has a built-in thermal shutdown feature that protects the IC from overheating by shutting down the amplifier when the temperature exceeds a certain threshold.

  9. Q: Can the MAX9750BETI+T be used in automotive applications? A: Yes, the MAX9750BETI+T is suitable for automotive applications as it can operate over a wide temperature range and has built-in protection features.

  10. Q: Are there any evaluation boards or reference designs available for the MAX9750BETI+T? A: Yes, Maxim Integrated provides evaluation boards and reference designs for the MAX9750BETI+T to help with the development and testing process.

Please note that these answers are general and may vary based on specific application requirements and design considerations.