SI5380_16 Datasheet, PDF (35/53 Pages) Silicon Laboratories – Ultra-Low Phase Noise, 12-output JESD204B Clock Generator

Si5380 Rev D Data Sheet
Electrical Specifications
Table 5.12. Crystal Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal Frequency ¹
f_XTAL
—
54
—
MHz
Total Frequency Tolerance ²
f_RANGE
–100
—
+100
ppm
Load Capacitance
C_L
—
8
—
pF
Equivalent Series Resistance
Shunt Capacitance
r_ESR
C_O
Refer to the Family Reference Manual to determine ESR and shunt capacitance.
Crystal Drive Level
d_L
The crystal resonator
—
must be able to tolerate
350 µW of drive level
—
350
µW
Notes:
1. See the Si5380 Reference Manual for a list of qualified 54 MHz crystals. The Si5380 is designed to work with crystals that meet
these specifications.
2. Includes initial tolerance, drift after reflow, change over temperature (–40 °C to +85 °C), V_DD variation, load pulling, and aging.
Table 5.13. Thermal Characteristics ¹
Parameter
Symbol
Test Condition
Value
Si5380–64QFN
Thermal Resistance
Junction to Ambient
Ɵ_JA
Still Air
22
Air Flow 1 m/s
19.4
Air Flow 2 m/s
18.3
Thermal Resistance
Ɵ_JC
9.5
Junction to Case
Thermal Resistance
Ɵ_JB
9.4
Junction to Board
Thermal Resistance
Ψ_JB
9.3
Junction to Board
Thermal Resistance
Ψ_JT
0.2
Junction to Top Center
Note:
1. Based on PCB Dimension: 3x4.5”, PCB Thickness: 1.6 mm, PCB Land/Via: 36, Number of Cu Layers: 4.
Unit
°C/W
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