Meixin Integrated
图片可能具有代表性。
产品详情请参阅规格.
MAX9722AETE+T
查看详情 数据表

MAX9722AETE+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: High efficiency, low distortion, compact size
  • Package: 16-TQFN (3x3)
  • Essence: Class D amplifier
  • Packaging/Quantity: Tape & Reel (2500 units)

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: 1.4W per channel into 8Ω at 5V
  • Total Harmonic Distortion + Noise (THD+N): 0.15% at 1kHz, 1.2W into 8Ω
  • Signal-to-Noise Ratio (SNR): 100dB A-weighted
  • Shutdown Current: 0.1μA (typical)

Detailed Pin Configuration

The MAX9722AETE+T features a 16-pin TQFN package with the following pin configuration: 1. SHDN (Pin 1) - Shutdown 2. INL- (Pin 2) - Left Input Negative 3. INL+ (Pin 3) - Left Input Positive 4. VDD (Pin 4) - Power Supply 5. PGND (Pin 5) - Power Ground 6. OUTL (Pin 6) - Left Output 7. OUTL (Pin 7) - Left Output 8. BST (Pin 8) - Bootstrap 9. FB (Pin 9) - Feedback 10. INR+ (Pin 10) - Right Input Positive 11. INR- (Pin 11) - Right Input Negative 12. GAIN (Pin 12) - Gain Select 13. VDD (Pin 13) - Power Supply 14. PGND (Pin 14) - Power Ground 15. OUTR (Pin 15) - Right Output 16. OUTR (Pin 16) - Right Output

Functional Features

  • Class D Operation
  • Short-Circuit and Thermal Protection
  • Low Quiescent Current
  • Wide Voltage Range Operation

Advantages and Disadvantages

Advantages

  • High Efficiency
  • Low Distortion
  • Small Footprint
  • Wide Voltage Range Operation

Disadvantages

  • Limited Output Power
  • Sensitivity to External Noise

Working Principles

The MAX9722AETE+T is a class D audio amplifier that operates by rapidly switching the output transistors on and off to generate the audio signal. This results in high efficiency and low power dissipation.

Detailed Application Field Plans

The MAX9722AETE+T is suitable for various portable and battery-powered audio applications, including smartphones, tablets, portable speakers, and headphones. Its low power consumption and small form factor make it ideal for space-constrained designs.

Detailed and Complete Alternative Models

  • MAX98306
  • TPA2016
  • LM4863

In conclusion, the MAX9722AETE+T is a versatile audio amplifier IC with high efficiency and low distortion, making it suitable for a wide range of portable audio applications.

Word Count: 410

10个与MAX9722AETE+T在技术解决方案中的应用相关的常见问题及解答

  1. What is the MAX9722AETE+T?

    • The MAX9722AETE+T is a stereo DirectDrive headphone amplifier with integrated volume control and high output power.

  2. What is the typical application of MAX9722AETE+T?

    • The MAX9722AETE+T is commonly used in portable audio devices, smartphones, tablets, and other consumer electronics to drive headphones or earphones.

  3. What is the maximum output power of MAX9722AETE+T?

    • The MAX9722AETE+T can deliver up to 80mW per channel into a 32Ω load, making it suitable for driving a wide range of headphones and earphones.

  4. How does the integrated volume control work in MAX9722AETE+T?

    • The integrated volume control allows for easy adjustment of the audio level without the need for an external potentiometer, providing a convenient user interface.

  5. What are the key features of MAX9722AETE+T?

    • The key features of MAX9722AETE+T include low quiescent current, click-and-pop suppression, thermal overload protection, and short-circuit protection.

  6. Can MAX9722AETE+T operate from a single supply voltage?

    • Yes, MAX9722AETE+T can operate from a single supply voltage, typically ranging from 2.7V to 5.5V, making it suitable for battery-powered applications.

  7. Is MAX9722AETE+T suitable for driving high-impedance headphones?

    • Yes, MAX9722AETE+T is capable of driving high-impedance headphones, providing flexibility in design for different types of headphones.

  8. Does MAX9722AETE+T require external coupling capacitors?

    • No, MAX9722AETE+T does not require external coupling capacitors, simplifying the design and reducing component count.

  9. What is the typical THD+N (Total Harmonic Distortion plus Noise) performance of MAX9722AETE+T?

    • The typical THD+N performance of MAX9722AETE+T is very low, ensuring high-quality audio reproduction.

  10. Are there any application notes or reference designs available for MAX9722AETE+T?

    • Yes, Maxim Integrated provides application notes and reference designs to assist engineers in implementing MAX9722AETE+T in their technical solutions.