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sinara-hw / Pounder

PDH/phase lock signal generator for Stabilizer
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trace impedance and separation #89

Closed jordens closed 1 year ago

jordens commented 3 years ago

The 50 Ohm signal traces seem to be really close to other traces, other pads, copper fill elements. Are the rules ok?

image image image

gkasprow commented 3 years ago

it looks so.

jordens commented 3 years ago

Yes. Coupling to the GND plane below may dominate making this OK. Let's leave it open as one item for characterization: crosstalk. If that turns out to be problematic, we can look at swapping of the in/out DDS channels (much more separated routing without layer crossing jumpers) and separated shielding cans.

image

gkasprow commented 3 years ago

I fixed the 3 first issues

gkasprow commented 1 year ago

I improved trace routing - added GND copper shielding image

jordens commented 1 year ago

Nice. Thanks.