Time Controller Series User Manual
Section 5: Operating the Time Controller Hardware
ID QUANTIQUE SA
1227 Geneva
T +41 22 301 83 71
34
Rue Eugène-Marziano 25
Switzerland
F +41 22 301 83 79
5.3.3
Reference Clock
Use the reference clock inputs and outputs to synchronize the Time Controller with other devices.
For example, additional Time Controllers, GPS, atomic clocks, scopes, or FPGAs.
Connect an external device to the Reference Clock IN port to supersede the internal master
clock of the Time Controller with the master clock of the external device.
Connect the Reference Clock OUT port to an external device to supersede the master clock
of external device with the master clock of the Time Controller.
Connect the IN and OUT ports to connect several devices in a daisy chain.
Use an SMA cable to connect the reference clock of the Time Controller to the reference clock of
your other device(s).
This port expects a repetitive signal (Sine wave or square wave) with a frequency of 10±0.025 MHz
and a maximum 10 V peak-to-peak voltage (e.g. maximum -5 V to 5 V over 50
Ω). Smaller voltages
also work well. The device-to-device jitter obtained with this connection is less than 2 ps.