
4.1.9 Oscillators
4.1.9.1 LFXO
Table 4.14. LFXO
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal frequency
f
LFXO
—
32.768
—
kHz
Overall frequency tolerance
in all conditions
-100
100
ppm
Note:
1. XTAL nominal frequency tolerance = +/- 20 ppm
4.1.9.2 HFXO
Table 4.15. HFXO
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal frequency
f
HFXO
-
38.4
-
MHz
Crystal frequency tolerance
-40
40
ppm
4.1.9.3 LFRCO
Table 4.16. LFRCO
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Oscillation frequency
f
LFRCO
ENVREF = 1 in
CMU_LFRCOCTRL
30.474
32.768
34.243
kHz
ENVREF = 0 in
CMU_LFRCOCTRL
30.474
32.768
33.915
kHz
Startup time
t
LFRCO
—
500
—
μs
Current consumption
I
LFRCO
ENVREF = 1 in
CMU_LFRCOCTRL
—
342
—
nA
ENVREF = 0 in
CMU_LFRCOCTRL
—
494
—
nA
Note:
1. Block is supplied by AVDD if ANASW = 0, or DVDD if ANASW=1 in EMU_PWRCTRL register
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SiP Module Data Sheet
Electrical Specifications
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