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Appendix A
Specifications
Jitter and Wander specifications
T-BERD/MTS/SC Getting Started Guide
Page 238
22046537, Rev. 016
March 2018
Measurement range
The upper limit of the wander frequency range is set by a first-order low-pass filter. The
sample rate is selected automatically to correspond with the selected low-pass filter.
lists the sample rates for various low pass filters.
Measurement filters
This section provides specifications for the measurement filters.
describes the measurement filters.
Table 165
Wander clock frequency specifications
Low pass filter/fc
Sample rate
Maximum measurable rate
of phase change at 2.5/2.7G
0.1 Hz
1/s
250000 UI/s
10 Hz
30/s
250000 UI/s
20 Hz
60/s
250000 UI/s
100 Hz
1000/s
300000 UI/s
Table 166
Measurement filters
Item
Description
Low-pass filter
0.1, 10, 20, 100 Hz
Low-pass filter characteristics
1
st
order (to ITU-T O.172/O.173)
Filter properties:
-3 dB cut-off frequency tolerance
fc ± 10%