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WE865-DUAL HW User Guide
1vv0300787
Rev. 1 - 03/10/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 16 of 48
VOLTAGE LEVELS @ 25 °C
VIL
SIGNAL
Min [V]
Max [V]
EN_A*, EN_B*
0
0.20
Table 7
Figure 4
4.2 Power supply design guidelines
The power supply circuitry is a very important part in the full product design and it strongly affects the
product overall performances, hence read carefully the requirements and the guidelines that will follow
for a proper design.
The table below shows the WE865-DUAL operating voltage range:
VOLTAGE RANGE
Nominal Supply Voltage
3.8V
Minimum Supply Voltage
3.4V
Max Supply Voltage
4.2V
Table 8
The electrical design of the power supply strongly depends on the power source the current is drained
from. Please refer to electrical design guidelines in the GE863-PRO
3
Hardware User Guide for further
information.
WE865-DUAL
EN_B*
EN_A*