SI5338 Datasheet, PDF (12/170 Pages) Silicon Laboratories – I2C-PROGRAMMABLE ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR

Si5338
Table 12. Jitter Specifications^1,2
(V_DD = 1.8 V –5% to +10%, 2.5 V ±10%, or 3.3 V ±10%, T_A = –40 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
GbE Random Jitter
(12 kHz–20 MHz)³
J_GBE
CLKIN = 25 MHz
All CLKn at 125 MHz⁴
—
0.7
1
ps RMS
GbE Random Jitter
(1.875–20 MHz)
R_JGBE
CLKIN = 25 MHz
All CLKn at 125 MHz⁴
—
0.38 0.79 ps RMS
OC-12 Random Jitter
(12 kHz–5 MHz)
CLKIN = 19.44 MHz
J_OC12
All CLKn at
155.52 MHz⁴
—
0.7
1
ps RMS
PCI Express 3.0
Random Jitter
(1.5 MHz—50 MHz)³
CLKIN = 25 MHz
J_PCIERJ1
All CLKn at 100 MHz
Spread Spectrum not
—
0.6
1
ps RMS
enabled⁴
PCI Express 3.0
Random Jitter
(12 kHz—20 MHz)³
CLKIN = 25 MHz
J_PCIERJ2
All CLKn at 100 MHz
Spread Spectrum not
—
0.7
1
ps RMS
enabled⁴
PCI Express 3.0
Period Jitter
CLKIN = 25 MHz
All CLKn at 100 MHz
—
Spread Spectrum not
enabled⁴
8
15 ps pk-pk
PCI Express 3.0
Cycle-Cycle Jitter
CLKIN = 25 MHz
All CLKn at 100 MHz
—
Spread Spectrum not
enabled⁴
13
30 ps pk-pk
Period Jitter
J_PER
N = 10,000 cycles⁵
—
10
30 ps pk-pk
Cycle-Cycle Jitter
N = 10,000 cycles
J_CC
Output MultiSynth
—
operated in integer or
fractional mode⁵
9
29
ps pk⁶
Random Jitter
(12 kHz–20 MHz)
Output and feedback
R_J
MultiSynth in integer or —
0.7
1.5 ps RMS
fractional mode⁵
Notes:
1. All jitter measurements apply for LVDS/HCSL/LVPECL output format with a low noise differential input clock and are
made with an Agilent 90804 oscilloscope. All RJ measurements use RJ/DJ separation.
2. For best jitter performance, keep the single ended clock input slew rates at Pins 3 and 4 more than 1.0 V/ns and the
differential clock input slew rates more than 0.3 V/ns.
3. D_J for PCI and GBE is < 5 ps pp
4. Output MultiSynth in Integer mode.
5. Input frequency to the Phase Detector between 25 and 40 MHz and any output frequency > 5 MHz.
6. Measured in accordance with JEDEC standard 65.
7. Rj is multiplied by 14; estimate the pp jitter from Rj over 2¹² rising edges.
12
Rev. 0.6