38.8.3 Digital Frequency Locked Loop (DFLL48M) Characteristics

Table 38-25. DFLL48M Characteristics - Open Loop Mode
SymbolParameterConditionsMin.Typ.Max.Units
fOUTOutput frequencyIDFLLVAL.COARSE = DFLL48M COARSE CAL

DFLLVAL.FINE = 512

474849MHz
IDFLLPower consumption on VDDINIDFLLVAL.COARSE = DFLL48M COARSE CAL

DFLLVAL.FINE = 512

-403453μA
tSTARTUPStartup timeDFLLVAL.COARSE = DFLL48M COARSE CAL

DFLLVAL.FINE = 512

fOUT within 90 % of final value

89μs

Note: 1. DFLL48M in Open loop after calibration at room temperature.

Table 38-26. DFLL48M Characteristics - Closed Loop Mode
SymbolParameterConditionsMin.Typ.Max.Units
fOUTAverage Output frequencyfREF = 32.768kHz47.764848.24MHz
fREFReference frequencyI0.73232.76833kHz
JitterPeriod JitterfREF = 32.768kHz--0.42ns
IDFLLPower consumption on VDDINfREF = 32.768kHz-403453μA
tLOCKLock timefREF = 32.768kHz

DFLLVAL.COARSE = DFLL48M COARSE CAL

DFLLVAL.FINE = 512

DFLLCTRL.BPLCKC = 1

DFLLCTRL.QLDIS = 0

DFLLCTRL.CCDIS = 1

DFLLMUL.FSTEP = 10

200500μs