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EFR32BG12 Datasheet, PDF (78/181 Pages) – | |||
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EFR32BG12 Blue Gecko Bluetooth ®Low Energy SoC Family Data Sheet
Electrical Specifications
4.1.12.5 Auxiliary High-Frequency RC Oscillator (AUXHFRCO)
Table 4.37. Auxiliary High-Frequency RC Oscillator (AUXHFRCO)
Parameter
Symbol
Test Condition
Min
Typ
Frequency accuracy
fAUXHFRCO_ACC At production calibrated frequen-
-3
â
cies, across supply voltage and
temperature
Start-up time
tAUXHFRCO
fAUXHFRCO ⥠19 MHz
â
400
4 < fAUXHFRCO < 19 MHz
â
1.4
fAUXHFRCO ⤠4 MHz
â
2.5
Current consumption on all IAUXHFRCO
supplies
fAUXHFRCO = 38 MHz
fAUXHFRCO = 32 MHz
â
193
â
157
fAUXHFRCO = 26 MHz
â
135
fAUXHFRCO = 19 MHz
â
108
fAUXHFRCO = 16 MHz
â
100
fAUXHFRCO = 13 MHz
â
77
fAUXHFRCO = 7 MHz
â
53
fAUXHFRCO = 4 MHz
â
29
fAUXHFRCO = 2 MHz
â
28
fAUXHFRCO = 1 MHz
â
27
Coarse trim step size (% of
period)
SSAUXHFR-
CO_COARSE
â
0.8
Fine trim step size (% of pe- SSAUXHFR-
riod)
CO_FINE
â
0.1
Period jitter
PJAUXHFRCO
â
0.2
4.1.12.6 Ultra-low Frequency RC Oscillator (ULFRCO)
Max
Unit
3
%
â
ns
â
μs
â
μs
213
μA
175
μA
151
μA
122
μA
113
μA
88
μA
63
μA
36
μA
34
μA
31
μA
â
%
â
%
â
% RMS
Parameter
Oscillation frequency
Table 4.38. Ultra-low Frequency RC Oscillator (ULFRCO)
Symbol
fULFRCO
Test Condition
Min
Typ
0.95
1
Max
Unit
1.07
kHz
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