GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.5 – 2011-10-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 73 of 94
11.10.
RTC Bypass Out
The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the
digital part, allowing having only RTC going on when all the other parts of the device are off.
To this power output a backup capacitor can be added in order to increase the RTC autonomy
during power off of the battery. NO Devices must be powered from this pin.
11.11.
External SIM Holder Implementation
Please refer to the related User Guide (SIM Holder Design Guides, 80000NT10001a).
11.12.
VAUX Power Output (only for GE864-GPS)
A regulated power supply output is provided in order to supply small devices from the
module.
This output is always active when the module is powered by VBATT.
The operating range characteristics of the supply are:
Operating Range
–
VAUX1 power supply
Min
Typical
Max
Output voltage
2.74V
2.80V
2.86V
Output current
100mA
Output bypass capacitor
(inside the module)
1
μ
F
