Atmel SAM4S Xplained Pro Starter and Evaluation Kit ATSAM4S-XPRO ATSAM4S-XPRO Fiche De Données
Codes de produits
ATSAM4S-XPRO
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
28
5.3
Typical Powering Schematics
The SAM4S supports a 1.62V-3.6V single supply mode. The internal regulator input is connected to the source
and its output feeds VDDCORE.
below
shows the power schematics.
As VDDIN powers the voltage regulator, the ADC, DAC and the analog comparator, when the user does not want
to use the embedded voltage regulator, it can be disabled by software via the SUPC (note that this is different from
Backup mode).
Figure 5-1.
Single Supply
Note:
Restrictions:
For USB, VDDIO needs to be greater than 3.0V.
For ADC and DAC, VDDIN needs to be greater than 2.4V.
Figure 5-2.
Core Externally Supplied
Note:
Restrictions:
For USB, VDDIO needs to be greater than 3.0V.
For ADC and DAC, VDDIN needs to be greater than 2.4V.
Main Supply
(1.62V-3.6V)
(1.62V-3.6V)
ADC, DAC
Analog Comp.
USB
Transceivers.
VDDIN
Voltage
Regulator
VDDOUT
VDDCORE
VDDIO
VDDPLL
Main Supply
(1.62V–3.6V)
(1.62V–3.6V)
Can be the
same supply
same supply
VDDCORE Supply
(1.08V–1.32V)
(1.08V–1.32V)
ADC, DAC, Analog
Comparator Supply
(2.4V–3.6V)
Comparator Supply
(2.4V–3.6V)
ADC, DAC
Analog Comp.
USB
Transceivers.
VDDIN
Voltage
Regulator
VDDOUT
VDDCORE
VDDIO
VDDPLL