SL869T3-I Product User Guide
1VV0301546 Rev. 3
Page 32 of 68
2021-03-31
Warning: This pin should be brought at least to a test point or it may
be impossible to update the firmware.
8.6.4.
Wakeup
When HIGH: This input signal will wake up a module that has been commanded into
Standby mode.
If commanded into STANDBY while WAKEUP is high, the module will immediately wake
up.
When LOW: The module will remain in the Standby mode.
If not in standby mode, this pin is ignored.
This pin has no effect on SLEEP mode.
If this pin is not used, leave it floating.
Note/Tip: The WAKEUP input is not available for part numbers
SL869T3I001R001, SL869T3I001T001, SL869T3I001R002 and
SL869T3I001T002, in which case this is a RESERVED pin
8.6.5.
1PPS
1PPS is a one pulse per second signal which is enabled after the receiver has achieved a
2D or 3D position fix. It is disabled if the position fix is lost.
The pulse is approximately 50% duty cycle.
Warning: This pin must be LOW or FLOATING at start-up and reset
for normal operation.
8.7.
Antenna Power and Status
8.7.1.
External Active Antenna Voltage
If an active antenna or external LNA is used, a source is required to provide voltage to it.
This may be Pin 9, or the same source that is used to supply the module, or it may be a
separate source.
A DC blocking capacitor is not required since it is built-in to the module.
