RoyalTek Confidential
15
REB-1315LPX Operational Manual
This pin receives GPS analog signal. The line on the PCB between the antenna(or antenna connector)
has to be a controlled impedance line (Microstrip at 50
Ω
).
RF_VOUT
This pin can provide maximum power 30mA @2.85V for active antenna.
PPS
This pin provides one pulse-per-second output from the board, which is synchronized to GPS time. This
is not available in Trickle Power mode.
V_RTC_3V3 (Backup battery)
This is the battery backup input that powers the SRAM and RTC when main power is removed. Typical
current draw is 10uA.
The supply voltage should be between 2.5V and 3.6V.
ON_OFF
Edge triggered soft on/off request. Should only be used to wake up chip.
GPIO Functions
Several I/Os are connected to the digital interface connector for custom applications.
