1PCS MAX98357A I2S 3W Class D Amplifier Breakout Board Audio Module
MAX98357A
$20.79
Sale price
$20.79
Regular price
$0.00
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We deal in all kinds of lC brands world-wide.
1PCS MAX98357A I2S 3W Class D Amplifier Breakout Board Audio Module
$20.79
Sale price
$20.79
Regular price
$0.00
Description
SPECIFICATIONS
Brand Name: NONE
High-concerned chemical: none
Origin: Mainland China
Output: Digital Sensor
Theory: Temperature & Humidity Sensor
Type: Temperature Sensor
Use: Temperature Sensor
Product Description:
Listen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the Raspberry Pi! If you're looking for an easy and low cost way to get your digital sound files bumpin' then theMAX98357 I2S Amp Breakoutis for you. It takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact amplified sound, it takes 2 breakouts (I2S DAC + Amp) and combines them into one.
I2S (not to be confused with I2C) in a digital sound protocol that is used on circuit boards to pass audio data around. Many high end chips and processors manage all of the audio in digital I2S format. Then, to input or output data, three or four pins are used (data in, data out, bit clock and left-right channel select). Usually, for audio devices, there's a DAC chip that will take I2S in and convert it to analog that can drive a headphone.
This small mono amplifier is surprisingly powerful - able to deliver 3.2 Watts of power into a 4 ohm impedance speaker (5V power @ 10% THD). Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, it's incredibly efficient - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot.
The audio input is I2S standard, you can use 3.3V or 5V logic data. The outputs are "Bridge Tied" - that means they connect directly to the outputs, no connection to ground. The output is a ~300KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.
There's a Gain pin that can be manipulated to change the gain. By default, the amp will give you 9dB of gain. By connecting a pullup or pull down resistor, or wiring directly, the Gain pin can be set up to give 3dB, 6dB, 9dB, 12dB or 15dB.
The ShutDown/Mode pin can be used to put the chip in shutdown or set up which I2S audio channel is piped to the speaker. By default, the amp will output (L+R)/2 stereo mix into mono out. By adding a resistor, you can change it to be just left or just right output
Works great with Raspberry Pi, Arduino Zero, and any other microcontroller or microcomputer with I2S audio outputs
Specs:
Output Power: 3.2W at 4Ω, 10% THD, 1.8W at 8Ω, 10% THD, with 5V supply
PSRR: 77 dB typ @ 1KHz
I2S sample rates from 8kHz to 96kHz
No MCLK required
Click + Pop reduction
Five pin-selectable gains: 3dB, 6dB, 9dB, 12dB, 15dB
Excellent click-and-pop suppression
Thermal shutdown protection
Technical Details
Datashsheets, EagleCAD files, Fritzing object and more in the tutorial
Revision History:
As of June 13, 2024- We added a pre-soldered terminal block.
Product Dimensions: 19.4mm x 17.8mm x 3.0mm / 0.8" x 0.7" x 0.1"
Product Weight: 1.2g / 0.0oz
About us:
We deal in all kinds of lC brands world-wide.
Our products are widely applied in civilian, industrial and military fieldslE work, communication, home appliances, RF, video display, memoriesRAM development, medical instruments, power supply system, programcontrolleddevices,digital devices,industrial equipments, aviation andnavigation equipments, etc.
We also supply Amplifier board,LCD Display,Soldering iron ,Temperature controller ,mppt solar controller,charger,Active balancer,BMS,battery tester,indicator ,esp8266 and so on
We have extensive industry knowledge and sufficient inventory. This enables us to provide a complete and versatile technical supports to our customers. Our products have been exported to many countries and regions around the world, and we have a good reputation among our customers. We welcome customers, chambers of commerce, and friends from all over the world to contact us and seek mutually beneficial cooperation.
Packaging & Shipping:
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2.T/T Bank Transfer;
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4.Western Union;
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Shipment Details:
1.After payment and confirmation, we will prepare goods efficiently and deliver them within 1-3working days.
2.You are free to choose DHL,UPS,Fedex,ARAMEX,EMS,Economic Airmail..as your favor shipping way, If you have any special requirement,please freely indicate in the remarks.
3. If there is any accident or delay of the package,the shipping service provider will assume the responsibility on our behalf.
Free Shipping Over $199
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- Express Shipping: Expedited Shipping (5–9 Business Days)
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- Tracking: Full tracking number provided for all orders
30-Day Return Policy
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
Why Choose Us?
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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