LTE Standard Module Series
structure. The width of VBAT_BB trace should be no less than 1 mm; and the width of VBAT_RF trace
should be no less than 2 mm. In principle, the longer the VBAT trace is, the wider it will be.
In addition, in order to ensure the stability of power source, it is suggested that a TVS diode of which
reverse stand-off voltage is 4.7 V and peak pulse power is up to 2550 W should be used. The following
figure shows the star structure of the power supply.
Module
VBAT_RF
VBAT_BB
VBAT
C1
100 µF
C6
100 nF
C7
33 pF
C8
10 pF
+
+
C2
100 nF
C5
100
µ
F
C3
33 pF
C4
10 pF
D1
WS4.5D3HV
Figure 8: Star Structure of the Power Supply
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