Maxim Integrated
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MAX9729ETI+
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MAX9729ETI+

Product Overview

Category

The MAX9729ETI+ belongs to the category of audio amplifiers.

Use

It is used for amplifying audio signals in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

  • High-quality audio amplification
  • Low power consumption
  • Small form factor

Package

The MAX9729ETI+ comes in a compact integrated circuit (IC) package.

Essence

The essence of MAX9729ETI+ lies in its ability to provide high-fidelity audio amplification while consuming minimal power.

Packaging/Quantity

The MAX9729ETI+ is typically packaged in reels or tubes and is available in varying quantities based on customer requirements.

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Total Harmonic Distortion + Noise (THD+N): 0.01% at 1kHz, 32Ω Load
  • Output Power: 80mW per Channel into 32Ω Load
  • Shutdown Current: <1μA
  • Package Type: 28-Pin TQFN-EP

Detailed Pin Configuration

The MAX9729ETI+ features a 28-pin TQFN-EP package with specific pin configurations for power supply, input, output, and control signals.

Functional Features

  • Low quiescent current
  • Short-circuit and thermal protection
  • Integrated volume control

Advantages and Disadvantages

Advantages

  • High-quality audio amplification
  • Low power consumption
  • Integrated protection features

Disadvantages

  • Limited output power compared to some higher-powered amplifiers
  • May require additional components for certain applications

Working Principles

The MAX9729ETI+ operates by receiving an audio input signal and amplifying it to drive an external speaker or headphone. It utilizes low-power circuitry to efficiently amplify the audio signal while maintaining high fidelity.

Detailed Application Field Plans

The MAX9729ETI+ is well-suited for use in portable electronic devices such as smartphones, tablets, and portable media players where high-quality audio amplification with minimal power consumption is essential. Additionally, it can be integrated into audio accessories like headphones and earbuds.

Detailed and Complete Alternative Models

  • MAX97220: Higher output power audio amplifier
  • MAX98357A: Class D audio amplifier with integrated digital audio interface

In conclusion, the MAX9729ETI+ offers high-quality audio amplification with low power consumption, making it an ideal choice for portable electronic devices and audio accessories. Its compact package and integrated protection features further enhance its appeal in the market.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van MAX9729ETI+ in technische oplossingen

  1. What is the MAX9729ETI+?

    • The MAX9729ETI+ is a high-power, stereo Class-D amplifier with integrated volume control and headphone driver.

  2. What is the maximum power output of the MAX9729ETI+?

    • The MAX9729ETI+ can deliver up to 2.2W per channel into an 8Ω load at 5V supply.

  3. What is the input voltage range for the MAX9729ETI+?

    • The input voltage range for the MAX9729ETI+ is typically 2.7V to 5.5V.

  4. Does the MAX9729ETI+ have thermal shutdown protection?

    • Yes, the MAX9729ETI+ features thermal shutdown protection to prevent damage from excessive heat.

  5. Can the MAX9729ETI+ be used in portable audio applications?

    • Yes, the low power consumption and small footprint make the MAX9729ETI+ suitable for portable audio applications.

  6. What is the typical efficiency of the MAX9729ETI+?

    • The typical efficiency of the MAX9729ETI+ is around 85% at 1W output power into an 8Ω load.

  7. Does the MAX9729ETI+ have short-circuit protection?

    • Yes, the MAX9729ETI+ includes short-circuit and overcurrent protection to safeguard the amplifier and connected components.

  8. What is the recommended operating temperature range for the MAX9729ETI+?

    • The recommended operating temperature range for the MAX9729ETI+ is -40°C to +85°C.

  9. Can the MAX9729ETI+ be used in automotive audio systems?

    • Yes, the wide supply voltage range and robust design make the MAX9729ETI+ suitable for automotive audio applications.

  10. Does the MAX9729ETI+ support I2C control for volume adjustment?

    • Yes, the MAX9729ETI+ features an I2C interface for digital volume control and other settings.

These questions and answers cover various aspects of the MAX9729ETI+ and its application in technical solutions.