PXB 4219 E V3.4 Infineon Technologies, PXB 4219 E V3.4 Datasheet - Page 239

• Manufacturer Part Number: PXB 4219 E V3.4
• Description: IC ATM/IP INTERWORKING BGA-256
• Manufacturer: Infineon Technologies

Specifications of PXB 4219 E V3.4

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PXB4219EV3.4; SP000007681

8.3.7
The aliasing effect which is inherent to the SRTS algorithm causes the jitter transfer at
681 Hz and all multiples of 681 Hz to be a copy of the jitter transfer at 0 Hz. This violates
the requirements.
The jitter attenuator removes jitter frequencies above 20 Hz. There is no aliasing and the
requirements are met.
Figure 51
Data Sheet
-10,0
-20,0
-30,0
-40,0
-50,0
-60,0
10,0
0,0
0,01
SRTS Jitter Transfer in E1 Mode
SRTS Jitter Transfer in E1 Mode without Jitter Attenuator
0,1
SRTS Jitter Transfer in E1 Mode
Frequency [Hz]
1
239
10
PXB 4219E, PXB 4220E, PXB 4221E
100
1000
Application Hints
-50 ppm
0 ppm
+50 ppm
ITU G.735
and I.431
IWE8, V3.4
2003-01-20