SI5364 Datasheet, PDF (13/40 Pages) Silicon Laboratories – SONET/SDH PRECISION PORT CARD CLOCK IC

Si5364
Table 4. AC Characteristics (PLL Performance Characteristics) (Continued)
(V_DD33 = 3.3 V ± 5%, TA = –20 to 85 °C)
Parameter
Clock Output Phase Step Slope³â€”Auto
Switching
BWSEL[1:0] = 11
BWSEL[1:0] = 00
BWSEL[1:0] = 01
BWSEL[1:0] = 10
Symbol
m_PT
Test Condition
During Clock Switching
6400 Hz
3200 Hz
1600 Hz
800 Hz
Min Typ Max Unit
— — 36 ps/
— — 18 ^µs
— — 9.0
— — 4.5
Transient Phase Deviation During Clock
Auto Switching
BWSEL[1:0] = 11
BWSEL[1:0] = 00
BWSEL[1:0] = 01
BWSEL[1:0] = 10
t_{pt_mtie_max}
6400 Hz
3200 Hz
1600 Hz
800 Hz
— — 800 ps
— — 800
— — 800
— — 800
Notes:
1. Higher PLL bandwidth settings provide smaller clock output wander with temperature gradient.
2. For reliable device operation, temperature gradients should be limited to 10 °C/min.
3. Telcordia GR-1244-CORE requirements specify maximum phase transient slope during clock rearrangement in terms
of nanoseconds per millisecond. The equivalent ps/µs unit is used here since the maximum phase transient magnitude
for the Si5364 (t_{PT_MTIE}) never reaches one nanosecond.
Table 5. Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
3.3 V DC Supply Voltage
LVTTL Input Voltage
Maximum Current Any Output PIN
V_DD33
–0.5 to 3.6
V
V_DIG
–0.3 to (+3.6)
V
±50
mA
Operating Junction Temperature
T_JCT
–55 to 150
°C
Storage Temperature Range
T_STG
–55 to 150
°C
ESD HBM Tolerance (100 pf, 1.5 kΩ)
1.0
kV
Note: Permanent device damage can occur if the Absolute Maximum Ratings are exceeded. Restrict functional operation to
the conditions as specified in the operational sections of this data sheet. Exposure to absolute maximum rating
conditions for extended periods might affect device reliability.
Table 6. Thermal Characteristics
Parameter
Thermal Resistance Junction to Ambient
Symbol
θ_JA
Test Condition
Still Air
Value
20
Unit
°C/W
Rev. 2.2
13