Stereo 2.1W Class D Audio Amplifier - TPA2012

Name: Stereo 2.1W Class D Audio Amplifier - TPA2012
Brand: Adafruit
SKU: ADA1552
Price: 9.90 GBP
Availability: OutOfStock

by Adafruit

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 2.1W channels into 4 ohm impedance speakers (@ 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 (89% efficient when driving an 8Ω speaker at 1.5 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 ~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.

Comes with a fully assembled and tested breakout board with 1.0uF input capacitors. It also includes a dual mini DIP switch for setting the amplifier gain on the fly, 3.5mm screw-terminal blocks so you can easily attach/detach your speakers, and some header in case you want to plug it into a breadboard. You will be ready to rock in 15 minutes! Speakers are not included, use any 4 ohm or 8 ohm impedance speakers.

Output Power: 2.1W at 4Ω, 10% THD, 1.4W at 8Ω, 10% THD, with 5V Supply
PSRR: 77 dB typ @ 217 Hz with 6 dB gain
Designed for use without an output filter, when wires are kept at under 2"-4" long
Four pin-selectable gains: 6dB, 12dB, 18dB and 24dB. Select with the onboard switches or by setting the G0 and G1 breakout pins (see schematic for breakout board showing gain pin settings for details)
Excellent click-and-pop suppression
Thermal shutdown protection
Independent channel shutdown
Low current draw: typ 6mA quiescent and 1.5uA in shutdown mode

Check out the tutorial for more details!

Note: The terminal blocks included with your product may be blue or black.

TECHNICAL DETAILS

Dimensions (without 0.1" header): 22.96mm / 0.9" x 28.33mm / 1.11" x 4.97mm / 0.19"
Weight: 2.56g

Revision History: As of May 23, 2016 Adafruit have updated this breakout to use the TPA2012 rather than the TS2012. This is an overall-equivalent part with slightly less power output. You can use the two interchangeably for 99% of projects. The TS2012 has been discontinued!

Datasheets, schematics, PCB files, Fritzing object and more in the tutorial!

TPA2012 Datasheet

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 2.1W channels into 4 ohm impedance speakers (@ 10% THD).

ADA1552

This product is no longer available

It's sad to say goodbye but sometimes we have to retire products to make way for new things.

SKU

ADA1552

EAN

0700598870251

Brand

Adafruit

Stock available

0 units
Backorder not allowed on this product

Weight

Stereo 2.1W Class D Audio Amplifier - TPA2012

This product is no longer available

Video introduction

Guides & tutorials

Search

Select currency

This product is no longer available

Video introduction

Guides & tutorials