GE864 Hardware User Guide
1vv0300694 Rev.10 - 10/06/08
10.11RTC 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.
10.12VAUX1 power output
A regulated power supply output is provided in order to supply small devices from the module. This output is active when the module is ON and goes OFF when the module is shut down. The operating range characteristics of the supply are:
Operating Range – VAUX1 power supply |
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| Min |
| Typical |
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| Max |
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Output voltage |
| 2.75V |
| 2.85V |
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| 2.95V |
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Output current |
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| 100mA |
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Output bypass capacitor |
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| 2.2μF |
(inside the module) |
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Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved | page 54 of 69 |
