EFR32MG13 Mighty Gecko Multi-Protocol Wireless SoC Family Data Sheet
Electrical Specifications
4.1.12.5 High-Frequency RC Oscillator (HFRCO)
Table 4.41. High-Frequency RC Oscillator (HFRCO)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Frequency accuracy
fHFRCO_ACC
At production calibrated frequen-
cies, across supply voltage and
temperature
-2.5
—
2.5
%
Start-up time
tHFRCO
fHFRCO ≥ 19 MHz
4 < fHFRCO < 19 MHz
fHFRCO ≤ 4 MHz
fHFRCO = 38 MHz
fHFRCO = 32 MHz
fHFRCO = 26 MHz
fHFRCO = 19 MHz
fHFRCO = 16 MHz
fHFRCO = 13 MHz
fHFRCO = 7 MHz
fHFRCO = 4 MHz
fHFRCO = 2 MHz
fHFRCO = 1 MHz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
300
1
—
—
ns
µs
2.5
267
224
189
154
133
118
89
—
µs
Current consumption on all
supplies
IHFRCO
299
248
211
172
148
135
100
44
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
34
29
40
26
36
Coarse trim step size (% of
period)
SSHFRCO_COARS
0.8
—
E
Fine trim step size (% of pe- SSHFRCO_FINE
riod)
—
0.1
—
%
Period jitter
PJHFRCO
—
0.2
—
—
% RMS
MHz
Frequency limits
fHFRCO_BAND
FREQRANGE = 0, FINETUNIN-
GEN = 0
3.47
6.15
FREQRANGE = 3, FINETUNIN-
GEN = 0
6.24
11.3
—
—
—
—
—
—
—
11.45
19.8
22.8
29.0
40.63
48
MHz
MHz
MHz
MHz
MHz
MHz
MHz
FREQRANGE = 6, FINETUNIN-
GEN = 0
FREQRANGE = 7, FINETUNIN-
GEN = 0
13.45
16.5
FREQRANGE = 8, FINETUNIN-
GEN = 0
FREQRANGE = 10, FINETUNIN-
GEN = 0
23.11
27.27
33.33
FREQRANGE = 11, FINETUNIN-
GEN = 0
FREQRANGE = 12, FINETUNIN-
GEN = 0
54
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