SLWSTK6000A Datasheet, PDF (33/80 Pages) Silicon Laboratories – ConfidentialMighty Gecko Wireless SoC EFR32MG1X232

EFR32MG1X232 Data Sheet
Electrical Characteristics
4.12.2 HFXO
Confidential ^{Table4.20. HFXO}
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal Frequency
f_HFXO
38
38.4
40
MHz
Supported crystal equivalent ESR_HFXO
series resistance (ESR)
Crystal frequency 38.4 MHz
-
-
60
Ω
Supported range of crystal
load capacitance ¹
C_{HFXO_CL}
6
-
12
pF
On-chip tuning cap range ^{2 C}HFXO_T
On each of HFXTAL_N and
HFXTAL_P pins
0
20
25
pF
On-chip tuning capacitance SS_HFXO
step
-
0.04
-
pF
Current consumption on
I_HFXODIG
38.4 MHz: ESR = 50 Ω, C_L = 10
-
DVDD for HFXO after startup
pF, BOOST³ = 2
TBD
-
µA
Current consumption on
I_HFXOANA
38.4 MHz: ESR = 50 Ω, C_L = 10
-
AVDD for HFXO after startup
pF, BOOST³ = 2
TBD
-
µA
Startup time
t_HFXO
38.4 MHz: ESR=50 Ω, C_L = 10 pF,
-
300
-
µs
BOOST³ = 2
Frequency Tolerance for the FT_HFXO
38.4 MHz, ESR = 50 Ω, CL = 10
-40
-
crystal
pF
40
ppm
Note:
1. Total load capacitance as seen by the crystal
2. The effective load capacitance seen by the crystal will be C_{HFXO_T} /2. This is because each XTAL pin has a tuning cap and the
two caps will be seen in series by the crystal.
3. In CMU_HFXOCTRL register
4.12.3 LFRCO
Parameter
Oscillation frequency
Startup time
Current consumption on
DVDD
Current consumption on
AVDD ¹
Symbol
f_LFRCO
t_LFRCO
I_LFRCODIG
I_LFRCOANA
Table 4.21. LFRCO
Test Condition
Min
Typ
Max
Unit
TBD
32.768
TBD
kHz
-
500
-
µs
-
TBD
-
nA
-
TBD
-
nA
Note:
1. Current consumption on DVDD instead if ANASW=1 in EMU_PWRCTRL register
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