[SI-LIST] Re: PCBoard construction for analog signals
- From: "Orin Laney" <olaney@xxxxxxxxx>
- To: <epd2001usa@xxxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Mon, 3 Feb 2014 20:56:43 -0800
LF and HF rules are different for this sort of thing. What kind are you
dealing with?
Orin
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of keithK EPD
Sent: Monday, February 03, 2014 4:47 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] PCBoard construction for analog signals
I am using a mixed (rigid and flex) board (6 layers) for sense analog
signal around the order of 1uA (a current source). I have multible
sensors on this board .... after the sensors , the signal travels through a
6" section of flex (now 3 layers) , and finally goes to a connector away
from the sensors.
the questions are: what would be the best way to preserve the most
signal (x-talk) , interference, etc....
Should the signals be sandwiched between copper ...
all signals are analog in nature..... no digital levels anywhere.
keith kowal
keith@xxxxxxxxxxxxxxxxxxx
any rules of thumb and why would be helpful
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