Datasheet

Connections and Settings
Inputs:
The amplifier inputs are coupled
via 1.0uF capacitors so they can
handle single ended or
differential signals.
For Single Ended signals (shown
on left), connect:
R+ to R+
GND to R-
L+ to L+
GND to L-
For differential signals, connect:
R+ to R+
R- to R-
L+ to L+
L- to L-
For volume control, a dual 50K
audio taper pot can be wired in
series with the inputs as shown.
Outputs:
This amplifier is designed to
drive moving coil loudpeakers
only. Speaker impedence must
be 3ohms or more. The output
signal is a 360KHz PWM square
wave with a duty cycle
proportional to the audio signal.
The inductance of the speaker
© Adafruit Industries https://learn.adafruit.com/stereo-3-7w-class-d-audio-amplifier Page 9 of 18