
IP Network Measurement Division
35
40G Quick Start Guide
(
Jitter
)
MUX and DEMUX Phase Alignment
MUX and DEMUX Phase Alignment
1/1 Clock Phase
1/4 Clock Phase
Data Threshold
Tune the two volumes for phase alignment to get “Error Free” after changing frequency.
The DUT can be placed between the MUX Data output and DEMUX Data input.
Align the DEMUX 1/1 Clock phase and Data threshold to achieve error free condition.
MUX
DEMUX
IP Network Measurement Division
36
40G Quick Start Guide
(
Jitter
)
MUX and DEMUX Phase and Threshold Alignment
MUX and DEMUX Phase and Threshold Alignment
D-FF
The Clock phase should be aligned
to the center of the phase margin.
Phase Margin
18