Specifications

52
Page 103
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Differential Signal Input Æ Common Signal Output
~7% of differential
signal amplitude
converted to common
signal
May be a problem if it
were on CAT5 twisted
pair
TDD21
TCD21, 20x scale
1 nsec/div
26 inch channel length
Page 104
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Where did the Conversion Happen?
TCD11 x10 scale increase
Via field on
daughter card
Via field on
mother board
asymmetry of
backplane traces
Conclusion: most mode
conversion happens in the
via fields!
TDD11