Silicon Laboratories I2C Manual page 12

Si5338
Table 10. Crystal Specifications for 19 to 26 MHz
Parameter
Crystal Frequency
Load Capacitance (on-chip differential)
Crystal Output Capacitance
Equivalent Series Resistance
Crystal Max Drive Level
*Note: See "AN360: Crystal Selection Guide for Si533x and Si5355/56 Devices" for how to adjust the registers to
accommodate a 12 pF crystal C
Table 11. Crystal Specifications for 26 to 30 MHz
Parameter
Crystal Frequency
Load Capacitance (on-chip differential)
Crystal Output Capacitance
Equivalent Series Resistance
Crystal Max Drive Level
*Note: See "AN360: Crystal Selection Guide for Si533x and Si5355/56 Devices" for how to adjust the registers to
accommodate a 12 pF crystal C
12
Symbol
f
XTAL
c (supported)*
L
c (recommended)
L
c
r
ESR
d
.
L
Symbol
f
XTAL
c (supported)*
L
c (recommended)
L
c
r
ESR
d
.
L
Rev. 1.2
Min Typ
19
11 12
17 18
O
100
L
Min Typ
26
11 12
17 18
O
100
L
Max Unit
26 MHz
13 pF
19 pF
5 pF

100
µW
Max Unit
30 MHz
13 pF
19 pF
5 pF

75
µW