Block Diagram; Design-In; Power Management; Connecting Power - Fibocom GTS-4E-00 Hardware Integration Manual

Block Diagram

1.3
2

Design-In

Power Management

2.1
2.1.1

Connecting Power

GTS-4E receivers have two power supply pins: VCC, V_BCKP.
2.1.1.1 VCC - Main Power
The main power supply is fed through the VCC pin. During operation, the current drawn by the GTS-4E
GPS module. It is important that the system power supply circuitry is able to support the peak power
(see datasheet for specification) for a short time. In order to define a battery capacity for specific
applications the sustained power figure shall be used.
2.1.1.2 V_BACK - Backup Battery
The V_BACK should always on both in Sleep mode and working on mode. That is to say only VCC
- Main Power can not power on the module, it needs both VCC - Main Power and V_BACK.There are
three ways for you to connection V_BACK pin:
GTS-4E GPS Module Hardware Integration Manual
Figure 1: Hardware Block Schematic
Page 6 of 22