lmh1983 TOF output lock to Puls per sec

twan hooft

Prodigy 155 points

Other Parts Discussed in Thread: LMH1983

can a lmh1983 with a 10MHZ as input source to Hin also lock to a pps puls (at vin) that is sync to the 10Mhz ofcourse

over 11 years ago

0 Arvind Sridhar over 11 years ago

TI__Mastermind 24205 points

Hi Twan,

Thank you for the inquiry. I have relayed your request to the applications engineer on the team who can best support technical inquiries on this device. He is currently out of the office and will be back on Jan 6th , 2014

Regards

Arvind Sridhar

0 twan hooft over 11 years ago in reply to Arvind Sridhar

Prodigy 155 points

Hi arvind

Is there anyone that can answer my question.

What i want to do is to lock to the 10 Mhz from my GPS receiver. and slowly look the TOF to the Puls per second from the GPS receiver.

regards

0 Alan O over 11 years ago in reply to twan hooft

TI__Mastermind 32575 points

Hi Twan,

The LMH1983 was not designed to automatically support this use case, but it may be possible to support via manual programming. I will loop in the Apps engineer that now supports this product so he can clarify / confirm this use case.

Regards,
Alan

0 Nasser Mohammadi over 11 years ago in reply to Alan O

TI__Guru* 93670 points

Hi Twan,

As Alan mentioned, the device was not designed to support this use case. Also, we have not characterized and tested the device under this condition so we cannot gurantee data sheet parameters. Or how would the device behaves under 1pps reference.

Maybe externally you can align, using some logic, 10MHz reference to the 1pps reference and then feed the 10MHz reference to the deivce.

Regards,,nasser

0 twan hooft over 11 years ago in reply to Nasser Mohammadi

Prodigy 155 points

Hi nasser

The 10Mhz is already locked to the 1pps puls. the problem is that the lmh give a TOF output that is not locked.

it would be wonderfull if the pps puls can lock the TOF

Clock & timing

Clock & timing forum

lmh1983 TOF output lock to Puls per sec