GE864-QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.0.1 24/11/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 20 of 65
5 Power Supply
The power supply circuitry and board layout are a very important part in the full product design and
they strongly reflect on the product overall performances, hence read carefully the requirements and
the guidelines that will follow for a proper design.
5.1 Power Supply Requirements
POWER SUPPLY
Nominal Supply Voltage
3.8V
Max Supply Voltage
4.2V
Operating Supply Voltage Range
3.4V – 4.2V
Wide Supply Voltage tolerant
3.25V – 4.2V
TIP: the supply voltage is directly measured between VBATT and GND balls. It must stay within the Wide Supply
Voltage tolerant range including any drop voltage and overshoot voltage (during the slot tx, for example).
NOTE: The Operating Voltage Range MUST never be exceeded also in power off condition; care must be
taken in order to fulfill min/max voltage requirement
