PXB4219 Datasheet, PDF (231/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

100,0
PXB4219 / PXB4220 / PXB4221
Application Hints
E1, ACM, FALC jitter tolerance, CDV=0, ASF=4
-50 ppm
10,0
0 ppm
+50 ppm
1,0
0,1
1
Figure 40
ITU G.823
and I.431
10
100
1000 10000 100000 1000000 Frequency [Hz]
ACM Jitter Tolerance in E1 Mode with Jitter Attenuator
8.3.2 ACM Jitter Tolerance in T1 Mode
The jitter tolerance of the bare device in T1 mode exceeds the capabilities of the
measurement equipment. This behavior is independent from frequency offset or PLL
gain.
Using the jitter attenuator slightly reduces the jitter tolerance to a level which can be
measured. All requirements are fulfilled.
Data Sheet
231
2002-05-06