PXB4221EV34GXP Lantiq, PXB4221EV34GXP Datasheet - Page 234

• Manufacturer Part Number: PXB4221EV34GXP
• Manufacturer: Lantiq

Specifications of PXB4221EV34GXP

• Data Rate: 2.048Mbps
• Number Of Channels: 1
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Figure 44
8.3.4
The aliasing effect which is inherent to the SRTS algorithm causes the jitter tolerance at
513 Hz and all multiples of 513 Hz to be a copy of the jitter tolerance at 0 Hz. Jitter
Tolerance at low frequencies violate the requirements.
With jitter attenuator jitter tolerance at low frequencies is increased and all jitter
frequencies above 20 Hz are removed. As a result no aliasing is possible. The jitter
tolerance fulfills the requirements.
Data Sheet
100
0,1
10
1
1
SRTS Jitter Tolerance in T1 Mode
SRTS Jitter Tolerance in E1 Mode with Jitter Attenuator
10
SRTS Jitter Tolerance in E1 Mode
100
1000
10000
234
PXB 4219E, PXB 4220E, PXB 4221E
100000 1000000
Application Hints
Frequency [Hz]
IWE8, V3.4
-50 ppm
0 ppm
+50 ppm
ITU G.823
and I.431
2003-01-20