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sinara-hw / Urukul

4 channel 1GS/s DDS (AD9910 or AD9912 variant)
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v1.4 changelog #31

Closed gkasprow closed 4 years ago

gkasprow commented 4 years ago
hartytp commented 4 years ago

I did a basic design review of all ICs on Urukul focussing on:

didn't see anything other than the reported issues. NB didn't look at overall design or info not on the schematic (capacitor voltage ratings etc)

hartytp commented 4 years ago

Great, thanks for doing all that! @gkasprow can you confirm that all open issues marked with a v1.4 milestone are now complete (I just did some tagging, so please re-check). If so, great!

hartytp commented 4 years ago

@gkasprow from a quick look, it seems that a few of these issues still aren't fixed. I'm keen to get v1.4 off to manufacture asap. Can you have a go at fixing them and then upload a new rc? Thanks!

hartytp commented 4 years ago

@gkasprow ping...what's the timeline for the next Urukul revision

gkasprow commented 4 years ago

I'm still out of the office but I'm slowly working on it. I will be back in 4 days.

hartytp commented 4 years ago

That's fine, we can wait a few more days (enjoy your holiday!). Thanks for the update.

gkasprow commented 4 years ago

done.

hartytp commented 4 years ago

added CVHD950 oscillator Vctrl input pin divider. It may be needed when VCXO oscillator is installed in case of poor availability of the standard part. (#18)

Remind me why we'd ever want a VCXO and not an XO?

hartytp commented 4 years ago

I've reviewed the schematics. Other than #33 I don't see any issues.

Once you've fixed that and @jordens has signed off, let's send these cards to order (we have a Creotech order that's been blocked by this release for quite a while).

gkasprow commented 4 years ago

We don't need VCXO. It is just in case we use VCXO due to poor availability of XO

hartytp commented 4 years ago

Ok

hartytp commented 4 years ago

Oh and can you add the dds pn to the panel? Then I think we’re good to go

hartytp commented 4 years ago

Thanks @gkasprow!

Assuming @jordens is happy to sign off, let’s send this off to manufacture

gkasprow commented 4 years ago

I'm just checking with PI simulations if everything is fine.

gkasprow commented 4 years ago

It looks like I didn't break anything related to power delivery network.

gkasprow commented 4 years ago

I drafted the new release. Please have a look at the panels.

hartytp commented 4 years ago

ping @jordens

jordens commented 4 years ago

I'm ok with the changes as described and did a test-port of the CPLD gateware. But I didn't review anything else.

hartytp commented 4 years ago

Okay, I've reviewed everything apart from the CPLD changes. So, if you've checked that then I'm happy to cut this release here.

Thanks all!