Description: The SparkFun Qwiic Speaker Amp includes the Texas Instruments TPA2016D2 stereo, filter-free class-D audio power amplifier. 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, and 8Ω speakers at up to 1.7W in stereo. Features: Texas Instruments TPA2016D2 Stereo Class-D Audio Amplifier 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 Board Dimensions: 1.70" x 1.00"
