EFR32MG13 Mighty Gecko Multi-Protocol Wireless SoC Family Data Sheet
Electrical Specifications
4.1.12.6 Auxiliary High-Frequency RC Oscillator (AUXHFRCO)
Table 4.42. Auxiliary High-Frequency RC Oscillator (AUXHFRCO)
Parameter
Symbol
Test Condition
Min
-3
Typ
Max
Unit
Frequency accuracy
fAUXHFRCO_ACC At production calibrated frequen-
—
3
%
cies, across supply voltage and
temperature
Start-up time
tAUXHFRCO
fAUXHFRCO ≥ 19 MHz
4 < fAUXHFRCO < 19 MHz
fAUXHFRCO ≤ 4 MHz
fAUXHFRCO = 38 MHz
fAUXHFRCO = 32 MHz
fAUXHFRCO = 26 MHz
fAUXHFRCO = 19 MHz
fAUXHFRCO = 16 MHz
fAUXHFRCO = 13 MHz
fAUXHFRCO = 7 MHz
fAUXHFRCO = 4 MHz
fAUXHFRCO = 2 MHz
fAUXHFRCO = 1 MHz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
400
1.4
2.5
187
152
131
106
98
—
—
ns
µs
—
µs
Current consumption on all
supplies
IAUXHFRCO
207
168
145
118
110
86
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
75
52
61
29
37
26
35
25
33
Coarse trim step size (% of
period)
SSAUXHFR-
0.8
—
CO_COARSE
Fine trim step size (% of pe- SSAUXHFR-
—
—
0.1
0.2
—
—
%
riod)
CO_FINE
Period jitter
PJAUXHFRCO
% RMS
4.1.12.7 Ultra-low Frequency RC Oscillator (ULFRCO)
Table 4.43. Ultra-low Frequency RC Oscillator (ULFRCO)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Oscillation frequency
fULFRCO
0.95
1
1.07
kHz
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