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Question regarding external sampling clock

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sron_jt:
Hello,
 
We would like to use a external 2GHz sampling clock for the FMC230, is it possible to use a LVPECL level type clock for this purpose?
The user manual states that LVTTL levels are supported, but what about a LVPECL signal with for example a 780mV voltage swing.
Will this, in combination with its common mode voltage of about 2V, be enough?
 
Thanks!

Kyu:

The input signal is converted to ac coupled differential through the single-ended to differential transformer circuit. The input sensitivity of the clock tree device is 150mV. Thus, 780mV swing LVPECL is enough.

Thanks,
Kyu

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