Part Number: MAX98357AETE+T

Manufacturer: Analogue Devices Inc./Maxim Integrated

Description: IC AMP CLASS D MONO 3.2W 16TQFN

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of MAX98357AETE+T

Datasheet  MAX98357AETE+T datasheet
Category Integrated Circuits (ICs)
Family Linear – Amplifiers – Audio
Manufacturer Maxim Integrated
Packaging Tape & Reel (TR)
Part Status Active
Type Class D
Output Type 2-Channel (Stereo)
Max Output Power x Channels @ Load 3.2W x 2 @ 4 Ohm
Voltage – Supply 2.5 V ~ 5.5 V
Features Depop, Short-Circuit and Thermal Protection
Mounting Type Surface Mount
Operating Temperature -40°C ~ 85°C (TA)
Supplier Device Package 16-TQFN (3×3)
Package / Case 16-WFQFN Exposed Pad

MAX98357AETE+T Introduction

Class D amplifiers with digital pulse-code modulation (PCM) inputs are a key part of audio systems because they boost audio data in a powerful and efficient way. People want these amplifiers because they have the best of both worlds: the economy of Class D and the better sound quality of Class AB.

One example of this kind of amplifier is the MAX98357AETE+T, which offers top-notch audio performance at a fair price. There is no need for complicated I2C programming because the digital audio interface can find different PCM and TDM clocking methods on its own.

The goal of this article is to give anyone who wants to know more about the MAX98357AETE+T amplifier a complete source of information. We’ll talk about its benefits and uses, as well as its features, specs, and how it works. This book will teach you how to get the most out of the MAX98357AETE+T amplifier, whether you’re building an audio system for a hand-held device, a home theatre, or a car.

MAX98357AETE+T Understanding PCM Input Class D Amplifiers

Digital audio amplifiers that use pulse-code modulation to boost digital audio data are called Class D amplifiers with a digital PCM input. Using these amps for sound has a number of advantages:

  • Class D amplifiers are very efficient because the process of turning digital audio information into physical output uses very little energy. This means that they use less energy and give off less heat, which makes them great for use in battery-powered tools and stereos that don’t give off much heat.
  • Class D amplifiers with PCM inputs, like the MAX98357AETE+T, are known for their economy, but they also have great sound quality. They have low distortion and good fidelity, which makes sure that the information is reproduced accurately.
  • Design that saves space Most PCM-input Class D amplifiers are made to be as small as possible. The MAX98357AETE+T, in particular, is small, which makes it easy to use in a wide range of audio setups.

Benefits of Using the MAX98357AETE+T Amplifier in Audio Systems

Because it has so many benefits, the MAX98357AETE+T amplifier is a great choice for music systems. These include:

  • The MAX98357AETE+T is a high-quality audio booster that won’t break the bank and will meet all your needs. It’s a good mix of price and quality, which makes it useful in many situations.
  • Recognising PCM and TDM Clocking Schemes Automatically: The digital audio link of the MAX98357AETE+T amplifier can automatically pick up up to 35 different PCM and TDM clocking schemes. Because of this, it’s easier to create and integrate, and you don’t need to use complicated I2C code.
  • Class AB Audio Performance with Class D Efficiency: The MAX98357AETE+T is an amplifier that blends the efficiency of a Class D amp with the better sound quality of a Class AB amp. This ensures low-power audio output without lowering the quality of the sound.

By utilising the MAX98357AETE+T amplifier in audio systems, designers can achieve efficient and high-performance audio amplification at a reasonable cost. Its automatic recognition feature and the combination of Class AB performance and Class D efficiency make it a versatile choice for various audio applications.

Overview of the MAX98357AETE+T Amplifier

The MAX98357AETE+T amplifier lets audio systems boost sound at a low cost and with good quality. It’s great for a lot of different uses because it can automatically recognise what you’re doing and because it combines Class AB speed with Class D efficiency.

Key Specifications

The output power of an amplifier like the MAX98357AETE+T is what determines whether or not it can power speakers or headphones. The exact amount of power flow depends on how the system is set up and used.

Efficiency is a way to measure how well an amplifier changes the power it gets into the power it gives out. The MAX98357AETE+T amplifier is made to run well, so it doesn’t lose any of the power it’s given.

Source-to-noise ratio, or SNR, is a way to measure how well a sound source stands out from any background noise. The MAX98357AETE+T amplifier has a high SNR, which makes sure that the sound is clear and not muddled.

The Class D operation of the MAX98357AETE+T amplifier makes high-quality music. Class D operation includes changing the audio signal into a very high-frequency pulse-width-modulated (PWM) waveform. This PWM pattern tells the power transistors to quickly switch between being on and off.

When the signal coming in is strong, the power transistors turn on, sending power to the speaker or load. When the information coming in is weak or close to zero, power transistors slow down the flow of current and use less power.

In a Class D amplifier, the power transistors are either fully on or fully off. This eliminates the power loss that happens in linear systems. This makes it possible for the MAX98357AETE+T amplifier to boost sound while maintaining its high level of performance.

The MAX98357AETE+T amplifier’s Class D operation and other advanced features and capabilities make it a good choice for a wide range of audio applications where efficiency, speed, and cost-effectiveness are most important.


Among the many possible uses for the MAX98357AETE+T amplifier are:

  • It can be used in handheld devices like smartphones, tablets, and portable speakers because it is small and has good sound quality.
  • The MAX98357AETE+T amplifier improves the sound quality of home theatre systems, soundbars, and multimedia speakers to create immersive listening spaces.
  • It can be used in car stereos, where it can make clear sounds even when turned up loud.
  • The MAX98357AETE+T amplifier can be used to boost the sound of IoT devices like smart speakers, devices that can be controlled by voice, and connected audio goods.

Design Considerations

When building music systems with the MAX98357AETE+T amplifier, there are a few things to think about:

Make sure that the power source you’re using meets the MAX98357AETE+T datasheet’s requirements. To make sure that your device works well and sounds great, you’ll need a solid power source with enough voltage and current. Filtering and decoupling could be used on the power source to cut down on noise and interference.

Like many other amplifiers, the MAX98357AETE+T can get hot when it’s on, especially when the power is turned up. With good thermal control, you can keep things from getting too hot and make sure they will work for a long time. Plan the PCB design to make sure heat is moved around well. Heat sinks, thermal vias, and enough airflow should be built into the system plan.

How to Make a Printed Circuit Board: By making sure there is as little noise and interference as possible in the PCB arrangement, it is possible to get clean audio signals. To keep signals from getting worse or getting mixed up, it’s important to keep analogue components away from high-speed digital lines. If you want to get the most out of your MAX98357AETE+T, it’s best to build it according to the specifications in the datasheet.

Signal integrity needs to be carefully looked after if high-quality music is to be preserved. Use the right trace routing techniques to keep impedance regulated and reduce signal reflections. Differential signalling is a great way to cut down on crosstalk and make audio systems less sensitive to noise.

Consider the EMI/EMC The MAX98357AETE+T amplifier is EMC and EMI compliant, so it shouldn’t cause any interference or trouble with other electronics. To lower EMI emissions and make sure they don’t interfere with other parts of the system, it’s important to use the right accountgrounding, shielding, and filtering methods.

● Security Logic

Install the proper safety electronics to guard against damage from excessive voltage, current, or short circuits to the amplifier and its connected components. Current-limiting devices, switches, and transient-voltage suppressors are all examples.

● System Integration

Think about how well your audio parts (microcontrollers, audio codecs, input/output interfaces, etc.) fit into the bigger system. Make sure that everything is talking to each other and working as it should.

Engineers can make audio systems with the MAX98357AETE+T amplifier more efficient, reliable, and compatible if they keep these things in mind during the planning process.


The MAX98357AETE+T amplifier is all you need to boost the volume of your music system without breaking the bank. It can be used for a wide range of audio system design needs, which shows how useful its many features are. The MAX98357AETE+T amplifier is a great addition to any audio setup, whether it’s a portable device or a home theatre. Contact ICRFQ now to find out more about the MAX98357AETE+T amplifier and how it might help your tech work. This excellent amplifier will allow you to get the most out of your music gear. Contact ICRFQ to get more information and help on how to improve your electronic processes.

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