This Wireling uses the NCP2820 to amplify audio. With more than 90% efficiency, this low-power amplifier will save the lifetime of your battery. The 16x9 speaker is also included with this board and can be connected to the speaker port.

Technical Specification : 

• Optimized PWM output stage: filterless capability

• Ultra-fast start-up time 1ms

• External gain configuration capability

• "Pop and click" noise protection circuitry

• Internally generated 250 kHz Switching frequency

• TinyDuino Power Requirements

• Voltage: 3.0V - 5.5V 

• Current: 2.5 mA (Typical Quiescent Current Mode). 

• A5/SCL - I²C Serial Clock line

• A4/SDA - I²C Serial Data line 

• 9mm x 16mm (.35 inches x .63 inches)

• Max Height (from the lower bottom of Wireling to upper top Wireling Connector): 3.70mm (0.15 inches)

• You can also use this shield without the TinyDuino – modifying the connecting cable by removing the opposite connector and stripping/tinning the wires, you can solder the connector cable to any other microcontroller board of your choice! 

• 5-Pin Wireling cables not included and sold separately.