Audio IC Development Tools Stereo 3.7W Class D Audio Amplifier

Audio IC Development Tools Stereo 3.7W Class D Audio Amplifier (1 Piece)
- Spread-Spectrum Modulation and Active Emissions Limiting
- Excellent click-and-pop suppression
- Thermal and short-circuit/over-current protection
- Passes EMI limit unfiltered with up to 12 inches (30 cm) of speaker cable
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 8Î© 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.
Country USA
Brand Adafruit
Manufacturer Adafruit
Binding Electronics
ItemPartNumber B00N42NP6W
Model B00N42NP6W
UPCs 720189972874
EANs 0720189972874
ReleaseDate 0000-00-00

Country	USA
Brand	Adafruit
Manufacturer	Adafruit
Binding	Electronics
ItemPartNumber	B00N42NP6W
Model	B00N42NP6W
UPCs	720189972874
EANs	0720189972874
ReleaseDate	0000-00-00

Audio IC Development Tools Stereo 3.7W Class D Audio Amplifier (1 Piece)

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