XRT91L31 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L31' PDF : 41 Pages View PDF
XRT91L31
REV. 1.0.2
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
FIGURE 24. JITTER TOLERANCE FOR OC-12 WITH HIGH BANDWIDTH AND LOW BANDWIDTH SETTINGS
1000.00
XRT91L31 Jitter Tolerance (OC12)
HBW
LB W
GR-253 M ask
100.00
10.00
1.00
0.10
1E+00
1E+01
1E+02 1E+03 1E+04 1E+05
Frequency (Hz)
1E+06
1E+07
FIGURE 25. JITTER TOLERANCE FOR OC-3 WITH HIGH BANDWIDTH AND LOW BANDWIDTH SETTINGS
100.00
XRT91L31 Jitter Tolerance (OC3)
HBW
GR-253 M ask
LB W
10.00
1.00
0.10
1E+00
1E+01
1E+02
1E+03 1E+04
Frequency (Hz)
1E+05
1E+06
1E+07
NOTE: LBW and HBW stand for Low Receiver Bandwidth and High Receiver Bandwidth (Pin 15 = high), respectively. taken
with nominal voltage and temperature conditions
4.6.2 Jitter Transfer
Jitter Transfer function is defined as the ratio of jitter on the output relative to the jitter applied on the input
versus frequency. There are two distinct characteristics in jitter transfer, jitter gain (jitter peaking) defined as
the highest ratio above 0dB and jitter transfer bandwidth. The overall jitter transfer bandwidth is controlled by a
low bandwidth loop.
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