Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 41
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
2.9.1.3 EMI Suppression Considerations
The use of LDO regulators is preferred to reduce
overall system noise and provide a cleaner power
source. However, when utilizing switching Buck/Boost
regulators as the local power source for PIC32MZ EF
devices, as well as in electrically noisy environments,
users should evaluate the use of T-Filters (i.e., L-C-L)
on the power pins, as shown in
Figure 2-5. In addition
to a more stable power source, use of this type of T-Fil-
ter can greatly reduce susceptibility to EMI sources and
events.
FIGURE 2-5:
VSS
VDD
VSS
VUSB3V3
VSS
VDD
VSS
VDD
VDD
VSS
VSS
VDD
VSS
VDD
VSS VDD
AVDD AVSS
Ferrite
Chips
0.01 μF
0.01 μF
VDD
VDD
0.1 μF
0.1 μF
0.1 μF
0.1 μF
0.1 μF
0.1 μF
0.1 μF
0.1 μF
Ferrite
Chips
Ferrite Chip SMD
DCR = 0.15ȍ(max)
600 ma ISAT
300ȍ@ 100 MHz
PN#: 
0.1 μF
PIC32MZ