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High Performance OCXO in a Compact Package-PPS Simulator Option

Category: References

10 MHz Frequency Reference, OCXO, with Band Gap Reference, Mini Chassis


The NR3700-O was designed for those applications requiring a simple high performance 10 MHz reference in a very small form factor.The NR3700-O uses the same low phase noise OCXOs as our high end GPS locked frequency references as well as the same low noise amplifiers. The frequency is set using a band gap reference to assure excellent temperature stability and minimal noise contribution.Power can be AC (with optional power adapter) or from -60 to +60 VDC in three ranges. The power supply is a shielded, low electromagnetic emission design and provides electrical isolation between the reference and the incoming power.  

· OCXO frequency stability  5ppb/day,  50 ppb/year ( optional stability < 200 ppb/ 10 year projected)

· self-test provides unit status with indicator and relay contact signal

· operates from AC power adapter or -60 to +60 VDC in three ranges

· low phase noise  -145dBc/Hz @ 1 KHz (lower phase noise options available)

· compact chassis 1.2"H  x  4"D x 2.75" W

· front panel status indicator for built-in test

· Optional 3.3 Vdc or 5 Vdc CMOS output

· Configure as a PPS simulator (factory settable PPS duty cycle 1 usec increments)

Data Sheets

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