A mini class D with AGC and I2C control? Yes please! This incredibly small stereo amplifier is surprisingly powerful. It is able to deliver 2 x 2.8W channels into 4 ohm impedance speakers (@ 10% THD) and it has a i2c control interface as well as an AGC (automatic gain control) system to keep your audio from clipping or distorting.

  • If you don't want to use I2C to control it, it does start up on with 6dB gain by default and the AGC set up for most music playing. We do suggest using it with a microcontroller to configure it, however, since its quite powerful. Settings are not stored in the chip, so you'll need to adjust any gain & AGC amplification settings every time the amp is powered up.

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 if 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. We also include 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. Speakers are not included, use any 4 ohm or 8 ohm impedance speakers.

  • Our awesome tutorial and Arduino library will let you set the AGC configuration (you can also just turn it off), max gain, and turn on/off the left & right channels all over I2C! You will be ready to rock in 20 minutes!

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


Specs:

  • Output Power: 2.8W at 4Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply
  • PSRR: 80 dB, 5ms startup time
  • Designed for use without an output filter, when wires are kept at under 2"-4" long
  • I2C interface pins for setting gain, AGC configuration parameters, etc. See our tutorial for more details
  • Selectable gain from -28dB to 30dB
  • Excellent click-and-pop suppression
  • Thermal shutdown protection
  • Shutdown pin for power saving mode.
  • Low current draw: 3.5mA quiescent and 0.2uA in shutdown mode

Technical Details:

  • Dimensions (without 0.1" header): 22mm x 28mm (.87" x 1.1")
Revision History:
  • As of November 2022 – we've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.

Documentations:

Package Includes:

  • 1 x Adafruit 1712 Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016

Write a review

Please login or register to review

Adafruit 1712 Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016

  • Brand: Adafruit
  • Product Code:NR-Ada-1712-Stereo-2.8W-Class
  • Reward Points:11
  • Availability:In Stock
  • रo 1,074.00

  • Price in reward points:1135

  • 45 or more रo 940.00
  • 143 or more रo 936.00

Related Products

Adafruit 1314 Speaker - 3inch Diameter - 4 Ohm 3 Watt

Adafruit 1314 Speaker - 3inch Diameter - 4 Ohm 3 Watt

Listen up! This 3" diameter speaker cone is the perfect addition to any audio project where you need..

रo 210.00

Adafruit 1313 Speaker - 3inch Diameter - 8 Ohm 1 Watt

Adafruit 1313 Speaker - 3inch Diameter - 8 Ohm 1 Watt

Listen up! This 3" diameter speaker cone is the perfect addition to any audio project where you need..

रo 210.00

Adafruit 5870 MCP3421 18-Bit ADC - STEMMA QT / Qwiic

Adafruit 5870 MCP3421 18-Bit ADC - STEMMA QT / Qwiic

The Adafruit MCP3421 18-Bit ADC is a simple, inexpensive, and easy to use 18-bit, 240 SPS, single-ch..

रo 642.00

Adafruit 1790 Music Maker MP3 Shield for Arduino (MP3/Ogg/WAV)

Adafruit 1790 Music Maker MP3 Shield for Arduino (MP3/Ogg/WAV)

Bend all audio files to your will with the Adafruit Music Maker shield for Arduino! This powerful sh..

रo 3,232.00

Adafruit 1063 Electret Microphone Amplifier - MAX4466 with Adjustable Gain

Adafruit 1063 Electret Microphone Amplifier - MAX4466 with Adjustable Gain

This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the..

रo 665.00 रo 750.00

Adafruit 1958 Stereo FM Transmitter with RDS/RBDS Breakout - Si4713

Adafruit 1958 Stereo FM Transmitter with RDS/RBDS Breakout - Si4713

Yaaar! Become your very own pirate radio station with this FM radio transmitter. This breakout board..

रo 2,153.00

Adafruit 1788 Music Maker MP3 Shield for Arduino w/3W Stereo Amp - v1.0

Adafruit 1788 Music Maker MP3 Shield for Arduino w/3W Stereo Amp - v1.0

Bend all audio files to your will with the Adafruit Music Maker shield for Arduino! This powerful sh..

रo 3,772.00

Adafruit 1552 Stereo 2.1W Class D Audio Amplifier - TPA2012

Adafruit 1552 Stereo 2.1W Class D Audio Amplifier - TPA2012

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 2.1W channels ..

रo 1,074.00

Adafruit 1752 Stereo 20W Class D Audio Amplifier - MAX9744

Adafruit 1752 Stereo 20W Class D Audio Amplifier - MAX9744

Pump up the volume with this 20W stereo amplifier! This slim little board has a class D amplifier on..

रo 2,153.00

Adafruit 5791 STEMMA Piezo Driver Amp - PAM8904

Adafruit 5791 STEMMA Piezo Driver Amp - PAM8904

Piezos make noise when you put an AC voltage across them: and the bigger the Vpp the louder they are..

रo 534.00

Adafruit 4445 Mono Enclosed Speaker with Plain Wires - 3W 4 Ohm

Adafruit 4445 Mono Enclosed Speaker with Plain Wires - 3W 4 Ohm

Listen up! This single  2.8" x 1.2" speaker is the perfect addition to any audio project where ..

रo 426.00

Adafruit 1085 ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier - STEMMA QT / Qwiic

Adafruit 1085 ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier - STEMMA QT / Qwiic

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC,..

रo 1,615.00

Adafruit 1669 Stereo Enclosed Speaker Set - 3W 4 Ohm

Adafruit 1669 Stereo Enclosed Speaker Set - 3W 4 Ohm

Listen up! This set of two 2.8" x 1.2" speakers are the perfect addition to any audio project where ..

रo 809.00

Tags: Adafruit, Stereo, Audio Amplifier

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.

Name
Email
Phone
Comments