Справочник Пользователя для RoyalTek meb-1000

 

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software. 

This is the auxiliary receiving channel and is used to input differential 
corrections to the board to enable DGPS navigation.(Option) 

This is the main transmitting channel and is used to output navigation and 
measurement data to PowerGPS or user written software. 

For user’s application (not currently used). 

This pin indicates state of RF voltage. 

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 50Ω). 

This pin is reserved as external DC power supply input for active antenna. 
If using 2.85V active antenna, pin 20 has to be connected to pin 19. 
If using 3.3V or 5V active antenna ,this pin has to be connected to 3.3V or 
5V power supply. 
PS: The current must be ≦100mA and voltage ≦12V,if using external 
power supply. 

This pin can provide power    35mA@2.85V  for active antenna. 

This pin provides an active-low reset input to the board. It causes the board 
to reset and start searching for satellites. If not utilized, it may be left open. 

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. 

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 1.6V and 3.6V.