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SI5369 Datasheet, PDF (9/84 Pages) Silicon Laboratories – ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR
Si5369
Table 3. AC Specifications
(VDD = 1.8 ± 5%, 2.5 ±10%, or 3.3 V ±10%, TA = –40 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Single-Ended Reference Clock Input Pin XA (XB with cap to GND)
Input Resistance
XARIN
RATE[1:0] = LM, MH,
—
12
—
k
ac coupled
Input Voltage Swing
XAVPP
RATE[1:0] = LM, MH,
0.5
—
1.2
VPP
ac coupled
Differential Reference Clock Input Pins (XA/XB)
Input Voltage Swing
XA/XBVPP
RATE[1:0] = LM, MH
0.5
—
2.4
VPP
CKINn Input Pins
Input Frequency
Input Duty Cycle
(Minimum Pulse
Width)
CKNF
0.002
—
CKNDC
Whichever is smaller
40
—
(i.e., the 40% / 60%
limitation applies only
to high frequency
clocks)
2
—
710
MHz
60
%
—
ns
Input Capacitance
CKNCIN
Input Rise/Fall Time
CKNTRF
20–80%
See Figure 2
CKOUTn Output Pins
(See ordering section for speed grade vs frequency limits)
Output Frequency
(Output not config-
ured for CMOS or
Disabled)
CKOF
N1  6
N1 = 5
N1 = 4
—
—
3
pF
—
—
11
ns
0.002
—
945
MHz
970
—
1134
MHz
1.213
—
1.4
GHz
Maximum Output
CKOF
—
Frequency in CMOS
Format
Output Rise/Fall
(20–80 %) @
CKOTRF Output not configured for
—
CMOS or Disabled
622.08 MHz output
See Figure 2
—
212.5
MHz
230
350
ps
Notes:
1. Input to output phase skew after an ICAL is not controlled and can assume any value.
2. Lock and settle time performance is dependent on the frequency plan and the XAXB reference frequency. Please visit
the Silicon Labs Technical Support web page at: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx
to submit a technical support request regarding the lock time of your frequency plan.
Rev. 1.0
9