SparkFun Stereo Amplifier 2.8W per Channel Qwiic Ready

The SparkFun Qwiic Speaker Amp includes the Texas Instruments TPA2016D2 stereo, filter-free class-D audio power amplifier. What distinguishes this audio amplifier from others is that it features volume control (i.e. gain), Dynamic Range Compression (DRC), Automatic Gain Control (AGC), enable/disable amplifier, and its ability to be configured through software via I2C. Its efficient class-D operation also means low heat and long battery life when driving 4Ω speakers at up to 2.8W in stereo.



The DRC and AGC is unique compared to other audio amplifiers. This is a powerful feature that allows you to "even out" the loud and quiet sections from your audio input. It also allows you to maximize the volume of your speakers. By fine-tuning the settings, you can get the most volume to prevent distortion of the audio signal. Using the DRC, AGC, and/or the limiter alone allows you to protect your speakers from getting damaged by extremely loud playback. SparkFun have written an extensive Arduino Library that allows you to easily control all of the amplifier's features from simple gain control to advanced AGC. Note that you will need to send the configuration to the TPA2016D2 upon every power cycle.

Product Video

Quick Spec

• Texas Instruments TPA2016D2 Stereo Class-D Audio Amplifier,/li>
  • Filter-free Class-D Architecture
  • Flexible Operation with/without I2C
  • Programmable Dynamic Range Compression (DRC) Parameters
  • Programmable Automatic Gain Control (AGC) Parameters
  • Programmable Volume Control
  • Selectable Gain from –28dB to 30dB in 1-dB Steps (When Compression is Used)
  • Selectable Attack, Release, and Hold Times
  • 4 Selectable Compression Ratios
  • High PSRR: 80dB
  • Fast Start-Up Time: 5ms
  • AGC Enable or Disable Function
  • Limiter Enable or Disable Function
  • Short-Circuit and Thermal Protection
  • I2C Address: 0x58 (unshifted)
• Voltage Input
• 2.5V to 5.5V via 2-pin Screw Terminal
• 3.3V via Qwiic Connector, when JP1 closed
• Low Supply Current
• 3.5mA @ 2.5V
• 3.7mA @ 3.6V
• 4.5mA @ 5.5V
• Low Shutdown Current
• 0.1µA @ 2.5V
• 0.2mA @ 3.6V
• 0.3mA @ 5.5V
• Stereo Output
• 1.7W per Channel into 8Ω at 5V
• 750mW per Channel into 8Ω at 3.6V
• 2.8W per Channel into 4Ω at 5V
• 1.5W per Channel into 4Ω at 3.6V
• 1x 3.5mm TRS Jack for Audio Input
• Screw Terminals
• 1x2 for Power Input (PWR, GND)
• 1x4 for Audio Input (GND, R, L) and SHDN
• 1x4 for Speaker Output (R+, R-, L+, L-)
• 1x 4-pin Qwiic Connector
• Built-in I2C Pull-Up Resistors (2.2kΩ)
• LED: PWR
• Jumpers
• LED
• I2C
• JP1
• Dimensions: 43 x 24.4mm

Resources

• Product Page
• Product Wiki
• Schematic
• Mechanical Diagram
• TPA2016D2 Datasheet
• Arduino Library
• GitHub

Shipping List

• 1 x SparkFun Stereo Amplifier 2.8W per Channel Qwiic Ready