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Amplifier Module - MAX98357 - DFRobot DFR0954
Audio amplifier module - MAX98357 - DFRobot DFR0954 perfectly works with microcontrollers with I2S audio outputs, such as ESP32 and can be used, for example, with IoT applications, Smart Home devices or Bluetooth audio players. The module is supplied with the voltage in the range from 3.3 V to 5 V and can generate more than 2.5 W of power . It is also possible to configure the sound reproduction method by changing the resistance on the SD lead.
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Product description: Audio amplifier module - MAX98357 - DFRobot DFR0954
Audio amplifier module - MAX98357 - DFRobot DFR0954 perfectly works with microcontrollers with I2S audio outputs, such as ESP32 and can be used, for example, with IoT applications, Smart Home devices or Bluetooth audio players. The module is supplied with the voltage in the range from 3.3 V to 5 V and can generate more than 2.5 W of power . It is also possible to configure the sound reproduction method by changing the resistance on the SD lead.
Thanks to its small size, the module can be used in the construction of a small audio player.
The product is compatible with Arduino !
The manufacturer has prepared a detailed user guide that contains useful information to help you get started with the module.
Botland is an official distributor of DFRobot open-source hardware. Every roboticist and practitioner of emerging technology has heard at least once of DFRobot solutions, built above all around Arduino. Our range holds original DFRobot products only.
Audio amplifier module - MAX98357 - DFRobot DFR0954.
Technical specification of the audio amplifier module
- Built-in chip: MAX98357A
- Supply voltage range: 3.3 V to 5 V
- Number of output channels: 1
- Selecting the output channel: off, left, right or stereo - left and right
- Power output: 8 Ω 1.8 W / 4 Ω 2.5 W (into 12 db)
- Communication interface: I2S interface
- Sampling frequency: 8kHz to 96kHz
- Dynamic range: 105 DB (VRMS = 2.54 V, 24 or 32 bit data)
- Noise Output: 25 FVRMS (24 or 32 bit data)
- Efficiency: 92%
- DAC Gain Accuracy: 1%
- Frequency response: ± 0.2 dB
- Class D switching frequency: 330 kHz
- Spectral bandwidth: ± 12.5 kHz
- Adjustable Gain:
- The gain is 15 dB when a 100 kΩ resistor is connected between GAIN and GND
- The gain is 12 dB when GAIN is directly connected to GND
- The gain is 9 dB when nothing is connected to GAIN
- The gain is 6 dB when GAIN is directly connected to VCC
- The gain is 3 dB when a 100 kΩ resistor is connected between the gain and VCC
- Leads: solder pads to which the goldpin connectors included in the kit should be soldered
- Module dimensions: 18 × 18 mm
Suggested module use
- Bluetooth audio player
- IoT application audio player
- Voice interaction in Smart Home devices
Sample connection diagram.
Pinout description
| PIN | DESCRIPTION |
|---|---|
| SPK- | Speaker output - negative. |
| VCC | Supply voltage from 3.3 V to 5 V. |
| GND | The mass of the system. |
| NC | Pin is not connected. |
| SD | Disabling and selecting the output channel (off, left, right or stereo - left and right). |
| GAIN | Gain Control - 9 dB by default. |
| SPK + | Loudspeaker output - positive. |
| DIN | Data in - data input. |
| BLCK | Bit Clock - informs the amplifier when to read data from the data pin. |
| LRC | Frame Clock - informs the amplifier about the input channel (left / right or stereo). |
Kit contents.
Kit contents
- Audio amplifier module - MAX98357
- 1x6 goldpin strip - 2.54 mm raster - 2 pieces
Our offer also includes other sound modules - check it out!
Useful links
| Name | Value |
|---|---|
| Width | 5.5 cm |
| Height | 6.4 cm |
| Depth | 2.5 cm |
| Weight | 0.007 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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