Product Specs

P34
SPKR_RP
Analog
-
Headphone/speaker differential
right output,positive.
Alternative function：
■Differential right line output,
positive
P35
SPKR_LN
Analog
-
Headphone/speaker differential
left
output,negative.
Alternative function：
■Differential left line output,
negative
P36
SPKR_LP
Analog
-
Headphone/speaker differential
left
output,positive.
Alternative function：
■Differential left line output,
positive
P37
PIO-2
Digital：Bidirectional
with programmable
strength internal pullup/
pull-down
Weak
pull-down
Programmable I/O line
2.
Alternative function：
■TBR_MISO[3]
P38
PIO-5
Digital：Bidirectional
with programmable
strength internal pullup/
pull-down
Weak
pull-down
Programmable I/O line
5.
Alternative function：
■TBR_MISO[1]
P39
V8_SMPS 3V3-1
-
-
V8IN 3V3-1
P40
GND
-
-
Ground
P41
ANT
RF
-
Bluetooth transmit/receive.
P42
GND
-
-
Ground
9 Notes
A. During the use of the module, please pay attention to avoid the influence of interference
sources such as power amplifier, boost circuit and DC/DC circuit on the module, and avoid the
module power supply circuit forming series circuit with high power circuit unit to reduce the
interference
B. If there are batteries, metal objects, LCD screens, horns, etc. next to the module antenna,
the distance from the antenna is required to be at least 15 mm (as shown)
C. PCB board: because metal will weaken the function of the antenna, when giving the module board,
it is strictly forbidden to lay the ground and line under the module antenna.