Home
About Us
My Account
Contact Us
Account
0 Item
Categories
Atmel
AVR
Sale Items
Arduino
Kits
Boards
Shields
Adafruit
Feathers
Arduino
Breakout Boards
Cables
Components & Parts
Development Boards
Neopixels
Other
Power
Raspberry Pi
Sensors
Wearables
Wireless
Robotics & CNC
Components
ICs
ICs/Semiconductors
LEDs
Kits
Controls
Buttons
Joysticks
Switches
Raspberry Pi
Displays
Enclosures
Prototyping
BeagleBone
Prototyping
Atmel/AVR
Kits
Sensors
Wearables
Robotics
Motors
Motors/Pumps
Power
Batteries
Battery Holders
Connectors
Chargers
Breakout Boards
Level Shifters
Displays
Connectors
Music
Development Boards
Arduino Compatibles
Wireless
Receiver
Tools
Testing Equipment
Particle
Magic and Puzzles
Magic
Puzzles
Metal Detectors
Games
Chess
Books
Home
>
Breakout Boards
> Adafruit Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016
Adafruit Stereo 2.8W Class D Audio Amplifier
Adafruit Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016
Price
Your Price:
$9.95
Availability:
Out of Stock
Part Number:
ASD1198
Put me on the Waiting List
Email a friend
Description
Customer Reviews
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 8O 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 and Arduino are not included, use any 4 ohm or 8 ohm impedance speakers.
Adafruit's 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!
Specs:
Dimensions (without 0.1" header): 22mm x 28mm (.87" x 1.1")
Weight: 2g
Output Power: 2.8W at 4O, 10% THD, 1.7W at 8O, 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
Related Items
Atmega328P-PU with Arduino Optiboot Loader
$4.99
On sale
$3.50
Sale
In Stock
Starter Pro Sensor Input Kit
Your Price:
$14.99
In Stock
Full Sized 830 Tie Point Solderless Breadboard
Your Price:
$7.95
In Stock
Recently Viewed Items
Browse Similar Items
Adafruit
Music
Quick View