Meixin Integrated
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MAX9779ETI+T
Voir les détails DataSheets

MAX9779ETI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: High-performance, stereo audio amplifier with integrated volume control and advanced protection features.
  • Package: 28-pin TQFN package
  • Essence: The MAX9779ETI+T is a versatile audio amplifier designed for various applications requiring high-quality sound amplification.
  • Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Supply Voltage: 2.7V to 5.5V
  • Output Power: Up to 3W per channel
  • Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1W output power
  • Signal-to-Noise Ratio (SNR): 100dB
  • Shutdown Current: Less than 1µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9779ETI+T has a total of 28 pins. Here is the detailed pin configuration:

  1. VDD
  2. GND
  3. SD (Shutdown)
  4. INL- (Left Channel Negative Input)
  5. INL+ (Left Channel Positive Input)
  6. BYP (Bypass Capacitor)
  7. OUTL- (Left Channel Negative Output)
  8. OUTL+ (Left Channel Positive Output)
  9. AGND (Analog Ground)
  10. VREF (Reference Voltage)
  11. VCM (Common Mode Voltage)
  12. INR- (Right Channel Negative Input)
  13. INR+ (Right Channel Positive Input)
  14. BYN (Bypass Capacitor)
  15. OUTR- (Right Channel Negative Output)
  16. OUTR+ (Right Channel Positive Output)
  17. VDD
  18. GND
  19. MUTE
  20. SDA (I2C Serial Data)
  21. SCL (I2C Serial Clock)
  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

  • Integrated volume control for precise audio level adjustment.
  • Advanced protection features including thermal shutdown, short-circuit protection, and overvoltage protection.
  • Low power consumption in shutdown mode.
  • I2C interface for easy control and configuration.

Advantages and Disadvantages

Advantages: - High-quality sound amplification with low distortion. - Versatile application possibilities due to integrated volume control. - Robust protection features ensure reliable operation. - Low power consumption in standby mode.

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

Working Principles

The MAX9779ETI+T operates as a stereo audio amplifier by amplifying the input audio signals received from the left and right channels. It utilizes an internal volume control circuitry to adjust the audio levels precisely. The amplifier also incorporates advanced protection features to safeguard against thermal issues, short circuits, and overvoltage conditions. The I2C interface allows for easy control and configuration of the amplifier's settings.

Detailed Application Field Plans

The MAX9779ETI+T finds applications in various audio systems, including:

  1. Portable Bluetooth speakers
  2. Home theater systems
  3. Automotive audio systems
  4. Gaming consoles
  5. Multimedia devices
  6. Soundbars

Its high-performance characteristics and integrated volume control make it suitable for applications requiring high-quality sound amplification.

Detailed and Complete Alternative Models

  1. MAX9778ETI+T: Similar audio amplifier with a different pin configuration.
  2. MAX9777ETI+T: Lower power version of the MAX9779ETI+T with reduced output power.
  3. MAX9776ETI+T: Audio amplifier with integrated volume control and additional features like equalization.

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

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Énumérez 10 questions et réponses courantes liées à l'application de MAX9779ETI+T dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MAX9779ETI+T in technical solutions:

  1. Q: What is the MAX9779ETI+T? A: The MAX9779ETI+T is a high-performance, stereo Class D audio amplifier with integrated digital volume control.

  2. Q: What is the maximum output power of the MAX9779ETI+T? A: The MAX9779ETI+T can deliver up to 2.8W per channel into an 8-ohm load.

  3. Q: Can the MAX9779ETI+T operate on a single power supply? A: Yes, the MAX9779ETI+T can operate on a single power supply ranging from 2.7V to 5.5V.

  4. Q: Does the MAX9779ETI+T require any external components for operation? A: Yes, the MAX9779ETI+T requires a few external components such as input coupling capacitors, feedback resistors, and output filter components.

  5. Q: Can the MAX9779ETI+T be used in portable devices? A: Yes, the low power consumption and small form factor make the MAX9779ETI+T suitable for use in portable devices like smartphones, tablets, and portable speakers.

  6. Q: Does the MAX9779ETI+T support I2C control interface? A: Yes, the MAX9779ETI+T features an I2C-compatible serial interface for controlling volume, gain, and other settings.

  7. Q: What is the typical efficiency of the MAX9779ETI+T? A: The typical efficiency of the MAX9779ETI+T is around 90%, making it an energy-efficient choice for audio amplification.

  8. Q: Can the MAX9779ETI+T drive low-impedance loads? A: Yes, the MAX9779ETI+T is capable of driving loads as low as 4 ohms.

  9. Q: Does the MAX9779ETI+T have built-in thermal protection? A: Yes, the MAX9779ETI+T includes thermal shutdown protection to prevent overheating.

  10. Q: Are there any evaluation kits available for the MAX9779ETI+T? A: Yes, Maxim Integrated offers evaluation kits that include the MAX9779ETI+T, allowing engineers to easily test and evaluate its performance in their designs.

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