XRT75L00D Datasheet, PDF (38/92 Pages) Exar Corporation – E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
FIGURE 22. INPUT JITTER TOLERANCE FOR DS3/STS-1
REV. 1.0.2
64
41
15
10
5
1.5
0.3
0.15
0.1
GR-253 STS-1
GR-499 Cat II
GR-499 Cat I
XRT75L00D
0.01
0.03
0.3
2
JITTER FREQUENCY (kHz)
20
100
6.1.2 E3 Jitter Tolerance Requirements:
ITU-T G.823 standard specifies that the clock and data recovery unit must be able to accommodate and
tolerate jitter up to certain specified limits. Figure 23 shows the tolerance curve and the actual measured data
for the device.
FIGURE 23. INPUT JITTER TOLERANCE FOR E3
ITU-T G.823
64
XRT75L00D
10
1.5
0.3
0.1
1
10
800
JITTER FREQUENCY (kHz)
The Figure 11 below shows the jitter amplitude versus the modulation frequency for various standards.
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