SIM940 Rubidium Frequency Standard

Manufactured by: SRS Stanford Research Systems

Quick Overview

Three 10 MHz outputs
1 pps input and output for GPS synchronization
20 year aging less than 0.005 ppm
Ultra-low phase noise (<-130 dBc/Hz at 10 Hz)
Remote interface

The SIM940 integrates a rubidium oscillator into the SIM900 platform. It provides stable and reliable perform..

Description

Description

Three 10 MHz outputs
1 pps input and output for GPS synchronization
20 year aging less than 0.005 ppm
Ultra-low phase noise (<-130 dBc/Hz at 10 Hz)
Remote interface

The SIM940 integrates a rubidium oscillator into the SIM900 platform. It provides stable and reliable performance with an estimated 20 year aging of less than 5 ‚' 10^-9 and a demonstrated rubidium oscillator MTBF of over 200,000 hours. The SIM940 is an ideal instrument for calibration and R&D laboratories or any application requiring a precision frequency standard.

There are three 10 MHz outputs with exceptionally low phase noise (-130 dBc/Hz at 10 Hz offset) and one second Allan variance (<2 ‚´ 10^-11). The SIM940 can be phase-locked to an external 1 pps reference (like GPS), providing Stratum 1 performance. A 1 pps output is also provided that has less than 1 ns of jitter and may be set with 1 ns resolution.

All functions of the SIM940 can be controlled from a computer via the SIM900 Mainframe. Both RS-232 and GPIB interfaces are supported by the mainframe.