xrt75r03 Exar Corporation, xrt75r03 Datasheet - Page 52

• Manufacturer Part Number: xrt75r03
• Description: Xrt75r03 -multi-channel Line Interface Unit Liu Family Desynchronizer And Jitter Attenuator With R3 Technologytm
• Manufacturer: Exar Corporation

XRT75R03
REV. 1.0.8
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.
As shown in the Figures 22 and 23 above, in the jitter tolerance measurement, the dark line indicates the
minimum level of jitter that the E3/DS3/STS-1 compliant component must tolerate.
The Table 11 below shows the jitter amplitude versus the modulation frequency for various standards.
F
F
7.1.2
IGURE
IGURE
23. I
24. I
E3 Jitter Tolerance Requirements:
0.15
NPUT
1.5
NPUT
0.3
0.1
64
41
15
10
5
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
0.01
J
J
ITTER
ITTER
1.5
10
0.3
64
0.1
T
T
OLERANCE
OLERANCE FOR
0.03
JITTER FREQUENCY (kHz)
JITTER FREQUENCY (kHz)
F
OR
E3
DS3/STS-1
0.3
1
49
2
10
20
800
100
ITU-T G.823
XRT75R03
GR-253 STS-1
GR-499 Cat II
XRT75R03
GR-499 Cat I
xr
xr
xr
xr