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Date: | Wed, 18 Jul 2012 14:49:38 -0700 |
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Hi Louis,
Good TDR instruments (Agilent or Tektronix) can measure the impedance of
trace lengths of 2.5 - 3.5 cm. You should use a rise time of 50 ps or
less to get good resolution.
Regards
Ravinder Ajmani
HGST, a Western Digital company
[log in to unmask]
5601 Great Oaks Pkwy.
San Jose, CA 95119-1003
www.hgst.com
Louis Hart <[log in to unmask]>
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[TN] Controlled Impedance measurements
Technetters, I am trying to measure the impedance of some traces on a
printed circuit board, traces that are 2.5 cm - 3.5 cm in length. They are
too short for the TDR here to measure. Could a Vector Network Analyzer
make impedance measurements on traces that short? If so, does anyone know
of a lab that could make such measurements?
Louis Hart
Compunetics
Monroeville, PA
USA
[log in to unmask]<mailto:[log in to unmask]>
412-858-1232
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