SI5380 Datasheet, PDF (33/50 Pages) Silicon Laboratories – Ultra-Low Phase Noise, 12-output JESD204B Clock Generator

Parameter
Setup Time, SDI to SCLK Rise
Hold Time, SDI to SCLK Rise
Delay Time Between Chip Selects (CSb)
Symbol
T_SU2
T_H2
T_CS
Si5380 Data Sheet
Electrical Specifications
Min
Typ
Max
Unit
12.5
—
—
ns
12.5
—
—
ns
1.9
—
—
T_c
TSU1
SCLK
CSb
SDIO
TSU2
TH2
TC
TD1
TD2
Figure 5.3. 3-Wire SPI Serial Interface Timing
TH1
TCS
TD3
Table 5.12. Crystal Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Crystal Frequency¹
f_XTAL
—
54
—
MHz
Total Frequency Tolerance²
f_RANGE
–100
—
+100
ppm
Load Capacitance
C_L
—
8
—
pF
Crystal Output Capacitance
C_O
—
—
2
pF
Equivalent Series Resistance
r_ESR
—
—
23
Ω
Crystal Drive Level
d_L
The crystal resonator must be
—
—
200
µW
able to tolerate 200 µW of drive
level
Note:
1. Refer to the Si5380 Reference Manual for qualified crystals. The Si5380 is designed to operate with crystals that meet the specifi-
cations in the Table 5.14 Absolute Maximum Ratings^{1,2,3, 4} on page 33. See the Si5380 Reference Manual for a list of qualified
54 MHz crystals.
2. Includes initial tolerance, drift after reflow, change over temperature (–40 °C to +85 °C), V_DD variation, load pulling, and aging.
Parameter
Si5380—64QFN
Table 5.13. Thermal Characteristics¹
Symbol
Test Condition
Value
Unit
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