PPS output from Teseo-LIV3R

[hjsteger0]

What is the timing specification of the PPS (Pulse Per Second) output from the Teseo-LIV3R in terms of pulse width and/or duty cycle?  I've reviewed the datasheet, UM2523 (ST Teseo III ROM binary image - User manual), and UM2231 (Teseo-LIV3 GNSS Modules - Hardware Manual) but don't see this specified.

[Tesla DeLorean]

There are parameters and settings you can read out.

For the docs looks to be 1 Hz 50/50 duty, quantization probably +/-16ns

[hjsteger0]

Hi Tesla DeLorean,

I'm not sure if you saw my question from last week.  You wrote "For the docs looks to be 1 Hz 50/50 duty, quantization probably +/-16ns" but I can't find the document that specifies this.  Would you please tell me where you found this specification?

Sincerely,

Hal

[hjsteger0]

Hi Tesla DeLorean,

Thanks for the replying to my question.  In which document did you find this information?

[TimBrookline]

Additional question, is it the rising edge or the falling edge that is synchronized to the second rollover?

[GalaxyQuest]

Hi,

For timing applications, I would consider using Teseo LIV3FL.

You can adjust the pulse duration (time from rising to falling edge) of the PPS signal by changing CDB-301.

Datasheet https://www.st.com/resource/en/datasheet/teseo-liv3fl.pdf

You can find the link to Software manual here.

https://www.st.com/resource/en/user_manual/um2229-teseoliv3-gnss-module--software-manual-stmicroelectronics.pdf

LIV3FL has same pinout of LIV3R but LIV3FL can do 3 constellations and is a flash based device.