Re: BeamRaC=erŪ ;-) and Reloaded Boards

From: Segher Boessenkool <segher_at_kernel.crashing.org>
Date: Thu, 2 Jan 2020 11:42:51 -0600
Message-ID: <20200102174251.GL3191_at_gate.crashing.org>
On Thu, Jan 02, 2020 at 11:55:32AM -0500, laughton_at_cyg.net wrote:
> >maybe someone has a better idea on how to "fix" that clock
> 
> My first instinct would be to put a low-value resistor in series with 
> the signal, with the resistor physically located near the IC pin which 
> is the source of the signal.  No capacitor, just a resistor...  47 ohms, 
> maybe, but in the range of roughly 22 to 100 ohms.

Yup, for impedance matching the source to the transmission line, to cut
down on reflections.  It's a good thing to try, the signal will almost
certainly improve quite a bit.

Happy new year everyone!


Segher
Received on 2020-05-30 00:04:48

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