Clocktamer GPS 1PPS

[Vladislav Ross]

Hello,

I have Clocktamer GPS. In the bill it is named 1.2, but schematics slightly differs. The PCB has text "1PPSout" near J20 and J21.

So I wonder what connector should I use for PPS: J4, J20 or J21?

[sergey kostanbaev]

Hi Vladislav,

If you have GPS Clocktamer, you only need to connect the GPS antenna
to the connector near the GPS chip.

Do you need to source 1pps to another device?

Best Regards,
Sergey

2013/12/8 Vladislav Ross <vladisl...@gmail.com>:

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[Vladislav Ross]

Yes, I want to use PPS output from Clocktamer.

[sergey kostanbaev]

Hi,

Currently no one of J4 J20 or J21 are soldered. (we had few samples
with soldered u.fl ) The right thing is to solder J20/J21 with
corresponding buffer (you can trace wire which go to it). Also you
need 0.1uF cap near the buffer.

J4 is for 1PPS input when there's no GPS module soldered.