SI5344H-42H Datasheet, PDF (20/56 Pages) Silicon Laboratories – HIGH-FREQUENCY,

Si5344H/42H
Table 12. Crystal Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal Frequency Range
f_{XTAL_48-54} Frequency range for
48
—
54
MHz
best jitter performance
Load Capacitance
Crystal Drive Level
Equivalent Series Resistance
Shunt Capacitance
C_{L_48-54}
—
8
—
pF
d_{L_48-54}
—
—
200
µW
r_{ESR_48-54} Refer to the Family Reference Manual to determine ESR and shunt
C_{O_48-54} capacitance.
Notes:
1. The Si5344H/42H is designed to work with crystals that meet the specifications in Table 12.
2. Refer to the Family Reference Manual or contact Silicon Labs for the recommended 48 to 54 MHz crystals.
Table 13. Thermal Characteristics
Parameter
Symbol
Test Condition^*
Value
Units
Si5344H, Si5342H (44-pin QFN)
Thermal Resistance
Junction to Ambient
_JA
Still Air
Air Flow 1 m/s
22.3
°C/W
19.4
Air Flow 2 m/s
18.4
Thermal Resistance
_JC
10.9
Junction to Case
Thermal Resistance
_JB
Junction to Board
_JB
Thermal Resistance
_JT
Junction to Top Center
9.3
9.2
0.23
*Note: Based on PCB Dimension: 3” x 4.5”, PCB Thickness: 1.6 mm, PCB Land/Via: 36, Number of Cu Layers: 4.
20
Rev. 1.0