User's Manual

Smart Machine Smart Decision
SIM5360A_User_Manual_V1.03 2014-07-03
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2.4 Footprint Recommendation
Figure 6: Footprint recommendation (Unit: mm)
3 Application Interface Specification
3.1 Power Supply
The power supply pins of SIM5360A include four VBAT pins (pin 62&63, pin 38&39). VBAT directly
supplies the power to RF circuit and baseband circuit. All four VBAT pins of SIM5360A must be used
together. VBAT directly supplies the power to RF PA and baseband system. For the VBAT, the ripple due
to GSM/GPRS emission burst (every 4.615ms）may cause voltage drop, and the current consumption rises
typically to peak of 2A. So the power supply must be able to provide sufficient current up to more than 2A.
The following figure is the VBAT voltage ripple wave at the maximum power transmit phase.
The test condition: VBAT =4.0V, VBAT maximum output current =2A, C
A
=100 µF tantalum capacitor