SmartWAV2-Datasheet_R4

SMARTWAV 2
Datasheet
Vizic Technologies ©2020 | 33
4
RESET
INPUT
Digital input reset pin, an active low
pulse greater than 100ns will reset the
processor. Internally pulled-up to 3.3V
via a 40K resistor. 5V tolerant input.
5
GROUND
POWER
Supply ground, be sure to have a well-
grounded connection to avoid noise
over the audio outputs.
6
3.3V
POWER
Main supply voltage: 2.7v-3.5v. Be sure
to use a 10uF and 100nF coupling
capacitors to GND as close as possible
to avoid noise over the audio outputs.
7
Rx - V+
INPUT
Digital input volume-up pin. Internally
pulled-down via a 40K resistor.
8
TX - V-
INPUT
Digital input volume-down pin.
Internally pulled-down via a 40K
resistor.
9
R-OUT
OUT
Pre-amplified right channel audio
output pin. Connect this pin instead of
the 3.5mm plug connector, those are
internally connected. (*Do not use
both plug and this pin at the same
time).
10
L-OUT
OUT
Pre-amplified left channel audio
output pin. Connect this pin instead of
the 3.5mm plug connector, those are
internally connected. (*Do not use
both plug and this pin at the same
time).
11
I4/I9 - STP
INPUT
Digital input pin Stop Track. Internally
pulled-down via a 40K resistor.
12
I3/I8 - BCK
INPUT
Digital input pin Rewind Track/Fast
Backward. Internally pulled-down via
a 40K resistor.