Si510/511
Table 6. Output Clock Jitter and Phase Noise (HCSL)
VDD = 1.8 V ±5%, 2.5 or 3.3 V ±10%, TA = –40 to +85 oC; Output Format = HCSL
Symbol
Test Condition
Min
Typ
Max
Unit
Parameter
*
Period Jitter
(RMS)
JPRMS
10k samples
—
—
1.2
ps
*
Period Jitter
(Pk-Pk)
JPPKPK
10k samples
—
—
—
11
ps
ps
Phase Jitter
(RMS)
φJ
1.875 MHz to 20 MHz integration
0.25
0.30
*
bandwidth (brickwall)
12 kHz to 20 MHz integration band-
—
0.8
1.0
ps
*
width (brickwall)
Phase Noise,
156.25 MHz
φN
100 Hz
1 kHz
—
—
—
—
—
—
–90
–112
–120
–127
–140
–75
—
—
—
—
—
—
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc
10 kHz
100 kHz
1 MHz
Spurious
SPR
LVPECL output, 156.25 MHz,
offset>10 kHz
*Note: Applies to an output frequency of 100 MHz.
8
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