The NR3700 reference uses a low noise SC cut OCXO as the master timing source. The OCXO is biased with a band-gap reference to provide excellent temperature and and aging stability. LED indicator provides self-test status. There is also a floating solid state relay that can be tied to an alarm panel self test status.
The NR3700 contains a factory programmable counter. The OCXO is typically 10 MHz and is firstly tripled to 30 MHz. The 30 MHz signal drives a 16 bit match counter enabling a the synthesis of a range of frequencies that are integer divides of the 30 MHz The output is available on the SMA as a CMOS signal at 5 Vdc or 3.3 Vdc CMOS capable of driving a 50 ohm load.
The unit also has a LVDS option.
Kits are available that include antenna, cables and power supply. Several features can be customized at the factory – frequencies other than 10 MHz either from a unique crystal or with a built-in synthesizer that is GNSS-locked. Time stamping capability to 100ns resolution. To meet unique requirements, we have shipped product with output features requiring a custom amplitude, square wave output, high voltage and high current drive.