[SI-LIST] Re: Risetime Filters
- From: "Jim (James) Antonellis" <janton@xxxxxxxxxxxx>
- To: "wolfgang.maichen@xxxxxxxxxxxx" <wolfgang.maichen@xxxxxxxxxxxx>
- Date: Wed, 17 Feb 2010 13:55:25 -0800
Just what I needed, thanks!!!
Jim Antonellis
Principal SI Engineer
Broadcom Corporation
janton@xxxxxxxxxxxx
www.broadcom.com
Office: 978.689.1669
Cell: 978.618.4745
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________________________________
From: wolfgang.maichen@xxxxxxxxxxxx [mailto:wolfgang.maichen@xxxxxxxxxxxx]
Sent: Wednesday, February 17, 2010 12:59 AM
To: Jim (James) Antonellis
Cc: si-list@xxxxxxxxxxxxx; si-list-bounce@xxxxxxxxxxxxx
Subject: Re: [SI-LIST] Risetime Filters
Hello Jim,
depending on your application, you may want to have a look at Minicircuits (at
their site look for "Filters" rather than "Rise Time Converters"). While
Picosecond Pulse Labs is IMHO the cream of the crop in terms of time-domain
performance, you pay for what you get (= a lot!). Minicircuits is more geared
towards RF/Microwave rather than digital, but up to a few GHz / Gbits/sec I
found their products to be very usable for digital for a fraction fo the cost;
which is a big issue if you need many pieces for your setup, or need to
duplicate your setup several times. In any case, for time domain applications
(as rise time converters) you need to go for low-pass Bessel or Gaussian
filters (not Chebycheff or Butterworth, which have significant overshoot and
ringing); Minicircuits has a category called "low pass, flat time delay".
For lower frequency ranges (a few 100 MHz LPF bandwidth limit) TTE
(www.tte.com) may be interesting as well. Last time I checked they offered
Bessel and Gaussian LPFs up to 200 MHz cutoff.
Wolfgang
"Jim (James) Antonellis" <janton@xxxxxxxxxxxx>
Sent by: si-list-bounce@xxxxxxxxxxxxx
02/16/2010 05:17 PM
To
"si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
cc
Subject
[SI-LIST] Risetime Filters
Hello,
In addition to the units from Agilent, Marki and Picosecond Pulse Labs, do you
know
of any other (SMA based) Risetime filters (AKA Low Pass Filter, Transition Time
Converter)?
Thx,
Jim
Jim Antonellis
Principal SI Engineer
Broadcom Corporation
janton@xxxxxxxxxxxx
www.broadcom.com
Office: 978.689.1669
Cell: 978.618.4745
This message and any attachments are Confidential and may be Legally Privileged.
It is intended solely for the addressee. If you are not the intended recipient,
please delete this message from your system and notify us immediately.
Any dis-closure, copying, distribution or action taken or omitted to be taken
by an unintended recipient in reliance on this message is prohibited and may
be unlawful.
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