MAX98357 I2S Amplifier Module

100% of 100
SKU: DFR0954 Brand: DFRobot
This I2S digital amplifier based on the MAX98357 I2S Class D amplifier module works great with microcontrollers with I2S audio outputs like ESP32 and can...
$9.70 AUD, inc GST
$8.82 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Fri, 19th of Apr

Quantity Discounts:

  • 10+ $8.68 (exc GST)
- +

5 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!


  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

This I2S digital amplifier based on the MAX98357 I2S Class D amplifier module works great with microcontrollers with I2S audio outputs like ESP32 and can be applied to projects like IoT nodes, smart home devices, Bluetooth audio players, and so on.

The module supports a 3.3V-5V power supply. And it can output over 2.5W of power when driven by 5V and a 4O speaker. Besides, it allows users to set different modes (off, left channel, right channel, and mixed) by changing the resistance on the SD port. The product defaults to mixed mode.

Featuring a small size, this I2S amplifier comes with stamp holes that enable it to be directly plugged into or mounted on a PCB and breadboard. Also, it is designed with PH2.0 and stamp holes for connecting speakers, flexible, and convenient to use.

MAX98357 I2S Amplifier Module


  • MAX98357 I2S digital Class D amplifier, power >2.5W
  • 3.3V~5V voltage power supply
  • Switchable sound channel
  • Adjustable gain
  • Stamp holes design, support SMT and DIP
  • Two ways to connect a speaker: PH2.0 and stamp holes


  • Bluetooth Audio Player
  • IoT Node Audio Player
  • Smart Home Voice Interaction
  • Robotic Device Audio Player


  • Module Parameters
  • MCU: MAX98357A
  • Operating Voltage: DC 3.3V~5V
  • Output Power: 8O 1.8W / 4O 2.5W (at 12db)
  • Output Channel: single channel
  • Communication Interface: I2S interface
  • Operating Temperature: -40°C - +80°C
  • Storage Temperature: -40°C - +80°C
  • Dimension (Without Packaging): 18mm × 18mm/ 0.059 × 0.059
  • Sample Rate: 8kHz~96kHz
  • THD:
    • 0.02% (f = 1kHz, POUT = 1W, TA = +25NC, ZSPK = 4I + 33FH, TQFN)
    • 0.013% (f = 1kHz, POUT = 0.5W, TA = +25NC, ZSPK = 8I + 68FH)
  • Dynamic Range: 105DB (A-weighted, VRMS = 2.54V, 24- or 32-bit data)
  • Output Noise: 25FVRMS (A-weighted, 24- or 32-bit data (Note 4))
  • Gain (relative to the reference level of 2.1dBV):
    • GAIN_SLOT = GND through 100kO: Min 14.4dB, Typical 15dB, Max 15.6dB
    • GAIN_SLOT = GND: Min 11.4dB, Typical 12dB, Max 12.6dB
    • GAIN_SLOT = unconnected: Min 8.4dB, Typical 9dB, Max 9.6dB
    • GAIN_SLOT = VDD: Min 5.4dB, Typical 6dB, Max 6.6dB
    • GAIN_SLOT = VDD through 100kO: Min 2.4dB, Typical 3dB, Max 3.6dB
  • Efficiency: 92% (ZSPK = 8I + 68FH, THD+N = 10%, f = 1kHz, gain = 12dB)
  • DAC Gain Error: 1%
  • Frequency Response: ±0.2dB
  • Class D Switching Frequency: 330kHz
  • Spread Spectrum Bandwidth: ±12.5kHz


Parts List

  • 1x MAX98357 I2S Amplifier Module

This product is listed in:

Breakouts & Modules>Audio

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $6+ for Standard Post (typically 6+ business days, tracked)
  • $10+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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