[SI-LIST] Re: VNA vs Spectrum Analyzers
- From: <colin_warwick@xxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Fri, 1 Jun 2012 16:58:22 -0600
Hi Baqar,
You might find these useful:
VNA http://cp.literature.agilent.com/litweb/pdf/5965-7917E.pdf
Spectrum Analyzer http://cp.literature.agilent.com/litweb/pdf/5952-0292.pdf
Another instrument to consider is TDR/TDT time domain reflection/transmission.
It's like radar for channel characterization. You put a short pulse into the
channel and see what goes through or comes back on an oscilloscope.
Hope this helps,
-- Colin Warwick
Product manager for High Speed Digital, Agilent EEsof EDA
...feeds blog @ http://Signal-Integrity.TM.Agilent.com/feed/
...tweets @signalintegrity<https://twitter.com/#!/signalintegrity>
Hi All,
I'm a Physics student, and long-time reader on the list looking to
determine the best instruments for a given application (VNA or Spectrum
Analyzer). I had some basic questions I was hoping some of you could help
me with.
Firstly, I've been tasked with characterizing a passive channel for a
multi-Gbps SerDes and am wondering what are the trade-offs in using one
instrument over the other?
Secondly, from my limited understanding of VNAs, it provides a driving
signal and can be observed at a given point. Is it at all possible to use a
VNA passively like a Spectrum analyzer by not giving an input signal?
Your time is much appreciated.
- Baqar Rizvi
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