Datasheet

...........continued
Symbol Parameter Conditions Min. Typ. Max. Units
I
DFLL
Power consumption
on V
DDIN
IDFLLVAL.COARSE = DFLL48M COARSE
CAL
DFLLVAL.FINE = 512
- 403 453 μA
t
STARTUP
Start-up time DFLLVAL.COARSE = DFLL48M COARSE
CAL
DFLLVAL.FINE = 512
f
OUT
within 90 % of final value
- 8 9 μs
Note: 1. DFLL48M in Open loop after calibration at room temperature.
Table 39-39. DFLL48M Characteristics - Closed Loop Mode
(1)
(Device Variant A)
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Average Output
frequency
f
REF
= 32 .768kHz 47.76 48 48.24 MHz
f
REF
Reference frequency 0.732 32.768 33 kHz
Jitter Cycle to Cycle jitter f
REF
= 32 .768kHz - - 1.04 ns
I
DFLL
Power consumption
on V
DDIN
f
REF
= 32 .768kHz - 425 482 μA
t
LOCK
Lock time f
REF
= 32 .768kHz
DFLLVAL.COARSE = DFLL48M
COARSE CAL
DFLLVAL.FINE = 512
DFLLCTRL.BPLCKC = 1
DFLLCTRL.QLDIS = 0
DFLLCTRL.CCDIS = 1
DFLLMUL.FSTEP = 10
100 200 500 μs
Table 39-40. DFLL48M Characteristics - Closed Loop Mode
(1)
(Device Variant B, C, D and L)
Symbol Parameter Conditions Min. Typ. Max. Units
f
OUT
Average Output
frequency
f
REF
= 32 .768kHz 47.76 48 48.24 MHz
f
REF
Reference frequency 0.732 32.768 33 kHz
Jitter Cycle to Cycle jitter f
REF
= 32 .768kHz - - 0.42 ns
I
DFLL
Power consumption
on V
DDIN
f
REF
= 32 .768kHz - 403 453 μA
SAM D21 Family
Electrical Characteristics at 125°C
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1092