have been searching the hardware user guide for serial port output voltage in dependence of the load current. But I can’t find it.
The only thing I found is that the output voltage is in between 2.2 V and 3.1 V. Which circumstances may lead to such a low output voltage? Load current? Supply voltage?
If it is just tolerance I will have to implement level shifters to bring it up to a level that is supported by the host controller.
Kind regards,
Alexander Buelow
Hi Alexander,
Telit_GE_GC864-QUAD_V2_and_GE864-GPS_Hardware_User_Guide_r11.pdf gives the required info, more:
The lower 2.2V voltage could be reached on with a big overload, generally in normal usual condition it is at about 2.8V.
Hi,
have been searching the hardware user guide for serial port output voltage in dependence of the load current. But I can’t find it.
The only thing I found is that the output voltage is in between 2.2 V and 3.1 V. Which circumstances may lead to such a low output voltage? Load current? Supply voltage?
If it is just tolerance I will have to implement level shifters to bring it up to a level that is supported by the host controller.
Kind regards,
Alexander Buelow
Hi Alexander,
Telit_GE_GC864-QUAD_V2_and_GE864-GPS_Hardware_User_Guide_r11.pdf gives the required info, more:
Hi Cosmin,
great thanks a lot.
Best regards,
Alex