SI5341_16 Datasheet, PDF (32/53 Pages) Silicon Laboratories – Low-Jitter, 10 or 4-Output, Any-Frequency, Any-Output Clock Generator

Si5341/40 Rev D Data Sheet
Electrical Specifications
Table 5.12. Crystal Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Crystal Frequency Range
f_XTAL
Full operating range. Jitter per- 24.97
—
54.06
MHz
formance may be reduced.
Range for best jitter.
48
—
54
MHz
Load Capacitance
C_L
—
8
—
pF
Crystal Drive Level
d_L
—
—
200
μW
Equivalent Series Resistance
Shunt Capacitance
r_ESR
C_O
Refer to the Si5341/40 Family Reference Manual to determine ESR and shunt ca-
pacitance.
Note:
1. Refer to the Si5341/40 Family Reference Manual for recommended 48 to 54 MHz crystals. The Si5341/40 are designed to work
with crystals that meet these specifications.
Table 5.13. Thermal Characteristics
Parameter
Symbol
Test Condition¹
Si5341 - 64QFN
Thermal Resistance
Junction to Ambient
Ï´_JA
Still Air
Air Flow 1 m/s
Air Flow 2 m/s
Thermal Resistance
Ï´_JC
Junction to Case
Thermal Resistance
Ï´_JB
Junction to Board
Ψ_JB
Thermal Resistance
Ψ_JT
Junction to Top Center
Si5340 - 44QFN
Thermal Resistance
Junction to Ambient
Ï´_JA
Still Air
Air Flow 1 m/s
Air Flow 2 m/s
Thermal Resistance
Ï´_JC
Junction to Case
Thermal Resistance
Ï´_JB
Junction to Board
Ψ_JB
Thermal Resistance
Ψ_JT
Junction to Top Center
Note:
1. Based on PCB Dimension: 3 x 4.5 mm, PCB Land/Via under GND pad: 36, Number of Cu Layers: 4
Value
22
19.4
18.3
9.5
9.4
9.3
0.2
22.3
19.4
18.4
10.9
9.3
9.2
0.23
Units
°C/W
°C/W
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