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SI5320 Datasheet, PDF (9/34 Pages) List of Unclassifed Manufacturers – SONET/SDH PRECISION CLOCK MULTIPLIER IC
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Si5320
Table 4. AC Characteristics (PLL Performance Characteristics)
(VDD33 = 3.3 V ±5%, TA = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min Typ Max Unit
Wander/Jitter at 800 Hz Bandwidth
(BWSEL[1:0] = 10 and DBLBW = 0)
Jitter Tolerance (see Figure 7)
JTOL(PP)
f = 8 Hz
f = 80 Hz
1000 —
100 —
— ns
— ns
f = 800 Hz
10 — — ns
CLKOUT RMS Jitter Generation
FEC[1:0] = 00
JGEN(RMS)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 0.87 1.2 ps
— 0.26 0.35 ps
CLKOUT RMS Jitter Generation
FEC[1:0 = 01, 10
JGEN(RMS)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 0.85 1.2 ps
— 0.26 0.35 ps
CLKOUT Peak-Peak Jitter Generation
FEC[1:0 = 00
JGEN(PP)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 7.3 10.0 ps
— 3.7 5.0 ps
CLKOUT Peak-Peak Jitter Generation
FEC[1:0 = 01, 10
JGEN(PP)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 7.2 10.0 ps
— 3.8 5.0 ps
Jitter Transfer Bandwidth (see Figure 6)
Wander/Jitter Transfer Peaking
Wander/Jitter at 1600 Hz Bandwidth
(BWSEL[1:0] = 10 and DBLBW = 1)
FBW
BW = 800 Hz
— 800 — Hz
JP
< 800 Hz
— 0.0 0.05 dB
Jitter Tolerance (see Figure 7)
f = 16 Hz
500 — — ns
f = 160 Hz
50 — — ns
f = 1600 Hz
5 — — ns
CLKOUT RMS Jitter Generation
FEC[1:0] = 00
JGEN(RMS)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 0.78 1.2 ps
— 0.25 0.35 ps
CLKOUT Peak-Peak Jitter Generation
FEC[1:0] = 00
JGEN(PP)
12 kHz to 20 MHz
50 kHz to 80 MHz
— 7.0 9.0 ps
— 3.8 5.0 ps
Jitter Transfer Bandwidth (see Figure 6)
FBW
BW = 1600 Hz
— 1600 — Hz
Wander/Jitter Transfer Peaking
JP
< 1600 Hz
— 0.00 0.05 dB
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
Si5320 (tPT_MTIE) never reaches one nanosecond.
Rev. 2.3
9
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