[time-nuts] minimalist sine to square
phk at phk.freebsd.dk
Sat Jan 20 14:21:03 EST 2018
In message <eb956eca-4534-0463-031b-232f8bdbd62f at earthlink.net>, jimlux writes:
>> I played with that, I used a small transformer to balance the signal
>> and then into LVDS receiver through a voltage divider. Worked well,
>> but I didn't measure the jitter, it was just for a micro-controller.
>You can also do it with capacitive dc block to one side, and some
>resistors - the ap notes describe it. The receivers are a fairly high Z
>input, so you pick the voltage divider resistors to make the termination
>resistance right for the incoming signal.
Yes, but that doesn't give you galvanic isolation, which I think is almost
mandatory unless it is a metrology situation.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the time-nuts