PCB Libraries Forum : TI DQN import not pretty https://www.PCBLibraries.com/forum/ Tue, 07 Apr 2026 15:57:03 +0000 Fri, 28 Mar 2014 09:41:34 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1299 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[TI DQN import not pretty : I manually created this part a...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5132.html#5132 Author: AGONZ67
Subject: 1299
Posted: 28 Mar 2014 at 9:41am

I manually created this part a while back and used rectangle as the shape of the pad with equal width and length of 0.5mm. I set the orientation to 45 and it worked perfectly. The shape isn't a square with chamfers it is a square rotated 45 degrees.


]]> Fri, 28 Mar 2014 09:41:34 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5132.html#5132 <![CDATA[TI DQN import not pretty : Thanks,I use the PADS ascii 9.3...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5112.html#5112 Author: jameshead
Subject: 1299
Posted: 21 Mar 2014 at 1:25am

Thanks,
I use the PADS ascii 9.3 format output since this has support for rounded rectangles which Pulsonix also recognises on the import.  I tend to use the .asc output rather than the .d and .p output.]]> Fri, 21 Mar 2014 01:25:00 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5112.html#5112 <![CDATA[TI DQN import not pretty : I also went ahead and figured...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5109.html#5109 Author: chrisa_pcb
Subject: 1299
Posted: 20 Mar 2014 at 5:10pm

I also went ahead and figured out why the pin 1 had the weird blob at the end and fixed it. This is how it now looks in PADS. We'll see about getting you a pre-release with these fixes.

]]> Thu, 20 Mar 2014 17:10:20 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5109.html#5109 <![CDATA[TI DQN import not pretty : The center pin is created as...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5108.html#5108 Author: chrisa_pcb
Subject: 1299
Posted: 20 Mar 2014 at 4:19pm

The center pin is created as a normal square pad with chamfers. The chamfers happen to be half the corner width. I am able to bring it into PADS without issue(excepting the bug below). Now, if you use a PADS output earlier than 9(which is where built-in chamfering of squares and rectangles was introduced), you should be able to generate it as a pad with associated copper, similar to how a thermal tab with chamfer/rounded corners is produced in all versions.

Keep in mind, there is also a bug where pin 1 is generating a negative pad width. I've fixed this in the code, but to do it manually in the .d set its width and length in the .d to 0.05. Like this:

PAD 0 5 N 0
-2 0.05 RF 0 90 0.05 0
-1 0 R
0 0 R
21 0.05 RF 0 90 0.05 0
23 0.05 RF 0 90 0.05 0

]]> Thu, 20 Mar 2014 16:19:33 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5108.html#5108 <![CDATA[TI DQN import not pretty : Here&#039;s the footprint done...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5105.html#5105 Author: jameshead
Subject: 1299
Posted: 20 Mar 2014 at 7:26am

Here's the footprint done in Pulsonix with Pulsonix's user defined pad styles used.



And a zip file with the Pulsonix format footprint in it.

uploads/53/Texas_Instruments_DQN_in_Pulsonix_format.zip

]]> Thu, 20 Mar 2014 07:26:17 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5105.html#5105 <![CDATA[TI DQN import not pretty : Just to clarify, the centre pad...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5099.html#5099 Author: jameshead
Subject: 1299
Posted: 20 Mar 2014 at 5:06am

Just to clarify, the centre pad I would expect on a PADS output to be a small square with a drawn copper polygon for the "diamond" shape pad in the centre.

I pulsonix I would replace this with a pad, pad style being diamond 0.82 mm width, 0.82 mm length.

I was surprised that the PADS asciii had the 0.82mm square pad style. Perhaps there's a rotation in the ascii that Pulsonix has failed to recognise, or is the PADS ascii output not correct?
]]> Thu, 20 Mar 2014 05:06:59 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5099.html#5099 <![CDATA[TI DQN import not pretty : I don&#039;t know immediately...]]> https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5098.html#5098 Author: jameshead
Subject: 1299
Posted: 20 Mar 2014 at 4:42am

I don't know immediately if this is something that Pulsonix has failed to convert correctly from the PADS ascii output created via FPX or if the PADS ascii output from FPX is not quite right.

I had a go at creating the TI DQN footprint in the FP Designer.



TI datasheet here: http://www.ti.com/lit/ds/symlink/tlv71330p.pdf

The footprint looked reasonable in FPX


 
The PADS ascii imported to Pulsonix with this result:



I was expecting the drawn copper areas with the small pads for the four corner pads because of the PADS limitations.  I would normaly now create a pad style in Pusonix and make sure it matches up with the drawn corner pads.

The centre pad has been replaced with a square of 0.82 mm side lengths though.  To be honest I was expecting the PADS output to be a drawn copper diamond shape again with the small pad in the centre.  Pulsonix supports a diamond pad shape though so I'd just substitute with this.

I can't check importing the PADS ascii into PADS here though so I'm uploading all the relevant files.

uploads/53/TI_DQN.fpx

uploads/53/TI_DQN_PADS_ASCII.zip

I'd generally try to use FPX then replace the pads in the imported-to-Pulsonix footprint with defined ones.

]]> Thu, 20 Mar 2014 04:42:16 +0000 https://www.PCBLibraries.com/forum/ti-dqn-import-not-pretty_topic1299_post5098.html#5098