Catalog

Single Channel 10 MHz Frequency Reference, OCXO Based

NR3700-O

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.

• Low phase noise OCXO
• Hold-Over stability of 5 ppb/day, 50ppb/year
• Operates from DC Power in three ranges +- (10 to 18, 18 to 36, 36 to 65) VDC or an AC Adapter

• Indicators and signals provide self-test status
• Internal 16 bit Match counter drives CMOS and/LVDS