EZR32WG330 Datasheet, PDF (27/87 Pages) Silicon Laboratories – Building and home automation

4.10.2 HFXO
Table 4.11. HFXO
Parameter
Symbol
Test Condition
Min
Supported nominal crystal
f_HFXO
4
Frequency
Crystal frequency 48 MHz
─
Supported crystal equivalent
series resistance (ESR)
ESR_HFXO
Crystal frequency 32 MHz
─
Crystal frequency 4 MHz
─
The transconductance of the
g_mHFXO HFXOBOOST in CMU_CTRL equals
20
HFXO input transistor at crys-
0b11
tal startup
Supported crystal external
load range
C_HFXOL
5
Duty cycle
DC_HFXO
46
Current consumption for
HFXO after startup
4 MHz: ESR=400 Ohm, C_L=20 pF,
─
HFXOBOOST in CMU_CTRL equals
0b11
I_HFXO
32 MHz: ESR=30 Ohm, C_L=10 pF,
─
HFXOBOOST in CMU_CTRL equals
0b11
Startup time
t_HFXO
32 MHz: ESR=30 Ohm, C_L=10 pF,
─
HFXOBOOST in CMU_CTRL equals
0b11
EZR32WG330 Data Sheet
Electrical Specifications
Typ
Max
Unit
─
48
MHz
─
50
Ω
30
60
Ω
400
1500
Ω
─
─
ms
─
25
pF
50
54
%
85
─
µA
165
─
µA
400
─
µs
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