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Adafruit Industries, Unique & fun DIY electronics and kits Stereo 3.7W Class D Audio Amplifier - MAX98306 : ID 987 - This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its incredibly efficient (over 90% efficient when driving
This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its incredibly efficient (over 90% efficient when driving an 8Ω speaker at over a Watt) - 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. This board is a welcome upgrade to basic "LM386" amps!The inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the R- and L- to ground. The outputs are "Bridge Tied" - that means they connect directly to the outputs, no connection to ground. The output is a 360KHz 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.Comes with a fully assembled and tested breakout board with 1.0uF input capacitors. We also include header to plug it into a breadboard, 3.5mm screw-terminal blocks so you can easily attach/detach your speakers, and a 2x4 header + jumper to change the amplifier gain on the fly. You will be ready to rock in 15 minutes! Speakers are not included, use any 3ohm or greater impedance speakers.
7 Best Voice changer ideas the voice, home stereo amplifier, paper mask template
7 Best Voice changer ideas the voice, home stereo amplifier, paper mask template
Adafruit Bone Conductor Transducer with Wires - 8 Ohm 1 Watt [ADA1674]
Adafruit Stereo 3.7W Class D Audio Amplifier
Adafruit Stereo 3.7W Class D Audio Amplifier
Stereo 3.7W Class D Audio Amplifier - MAX98306 : ID 987 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bone Conductor Transducer with Wires - 8 Ohm 1 Watt : ID 1674 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Stereo 3.7W Class D Audio Amplifier - MAX98306 : ID 987 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Stereo 3.7W Class D Audio Amplifier - MAX98306 : ID 987 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Printable catalog (PDF) - Adafruit
Bone Conductor Transducer with Wires - 8 Ohm 1 Watt : ID 1674 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bone Conductor Transducer with Wires - 8 Ohm 1 Watt : ID 1674 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bone Conductor Transducer with Wires - 8 Ohm 1 Watt : ID 1674 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bone Conductor Transducer with Wires - 8 Ohm 1 Watt : ID 1674 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits