EFM32JG1 Datasheet, PDF (36/94 Pages) Silicon Laboratories – The EFM32 Jade Gecko MCUs are the world’s most energyfriendly microcontrollers

5. Typical Connection Diagrams
EFM32JG1 Data Sheet
Typical Connection Diagrams
5.1 Power
Typical power supply connections for direct supply, without using the internal dc-dc converter, are shown in the following figure.
VDD
Power plane
CDEC
DVDD
AVDD_0
DECOUPLE
AVDD_1
IOVDD
EFM32 _VREGVSS
CIOVDD CAVDD_1 CAVDD_0 CDVDD
Ground plane
Figure 5.1. EFM32JG1 Typical Application Circuit: Direct Supply Configuration without DC-DC converter
Typical power supply circuits using the internal dc-dc converter are shown below. The MCU operates from the dc-dc converter supply.
VDD
Power plane
VREGVDD
LVREGSW
VREGSW
DVDD
IOVDD
AVDD_0
AVDD_1
CVREGSW _{CDVDD CIOVDD}
DECOUPLE
EFM32 _VREGVSS
CAVDD_1 CAVDD_0
CDEC
Ground plane
Figure 5.2. EFM32JG1 Typical Application Circuit: Configuration with DC-DC Converter
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