EFR32MG1 Datasheet, PDF (38/94 Pages) Silicon Laboratories – Home and Building Automation and Security

4.1.11.4 HFRCO and AUXHFRCO
Parameter
Frequency Accuracy
Start-up time
Symbol
f_HFRCO
t_HFRCO
Current consumption on all I_HFRCO
supplies
Step size
Period Jitter
4.1.11.5 ULFRCO
SS_HFRCO
PJ_HFRCO
Parameter
Oscillation frequency
Symbol
f_ULFRCO
EFR32MG1 Mighty Gecko SoC with Integrated Serial Flash Data Sheet
Electrical Specifications
Table 4.21. HFRCO and AUXHFRCO
Test Condition
Min
Typ
Max
Unit
Any frequency band, across sup-
-2.5
—
ply voltage and temperature
2.5
%
f_HFRCO ≥ 19 MHz
—
300
—
ns
4 < f_HFRCO < 19 MHz
—
1
—
μs
f_HFRCO ≤ 4 MHz
—
2.5
—
μs
f_HFRCO = 38 MHz
—
204
228
μA
f_HFRCO = 32 MHz
—
171
190
μA
f_HFRCO = 26 MHz
—
147
164
μA
f_HFRCO = 19 MHz
—
126
138
μA
f_HFRCO = 16 MHz
—
110
120
μA
f_HFRCO = 13 MHz
—
100
110
μA
f_HFRCO = 7 MHz
—
81
91
μA
f_HFRCO = 4 MHz
—
33
35
μA
f_HFRCO = 2 MHz
—
31
35
μA
f_HFRCO = 1 MHz
—
30
35
μA
Coarse (% of period)
—
0.8
—
%
Fine (% of period)
—
0.1
—
%
—
0.2
—
% RMS
Table 4.22. ULFRCO
Test Condition
Min
Typ
Max
Unit
0.95
1
1.07
kHz
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