iSync+® GPS/GNSS OCXO/Rb modules

SRO-5680

Airborne-Rugged Synchronized Rb Oscillator (SRO-5680)

The new, slim, ultra low noise SRO-5680 GPS/GNSS-disciplined rubidium oscillator (GPSDO) features an EMI-shielded, rugged packaging, while integrating complex synchronization functionality all in one low-cost, super-small package. It is compatible with the FEI-5680 Rb model and utilizes the SmarTiming+® technology to provide a host of integrated GPS/GNSS disciplining and timing features. The SRO intelligently synchronizes, disciplines, and controls any primary 1PPS reference signal, such as GPS/GNSS, Cesium, Hydrogen Maser, and T1/E1, at cutting-edge 1ns resolution. Its slim and rugged packaging and ultra low noise features make it greatly suitable for next gen SATCOM, airborne and other stringent MIL applications.

RELATED PRODUCTS: See our product brochure to quickly compare other product features and performance.

Key Features*

*See or download the full Spec in the Documents page. 

Specifications Standard Options
Output
Input
10 MHz
1PPS from GPS / GNSS


Accuracy @ shipment typ. < 5x11 at 25c
Tempco
Temp
Aging

< 2E-10
-10 to 60C
< 5E-11/mth, typ. < 3E-11/mth
 
Stability (ADEV)
1s
10s
100s

2E-11
8E-12
2E-12

5E-11

4E-12
2E-12
Phase noise @ 10 MHz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
(dBc/Hz)
-75
-95
-125
-145
-145

-85 to -105

-130 to -138
-155
-162
-164 to 166
Holdover < 1µs/24hr*, < 7µs/week*
< 3µs/24hr**
< 7µs/24hr***
*temp profile +2C
**temp profile within 20C
***temp profile within 40C
Warm-up time @ 25C 12 min, 5E-10   
Power (operating)
Voltage
Warm-up
< 7-20W
24V
< 32W
< 9-23W
12V
< 32W
Size (WxHxL) 140x101.3x28.5mm | 5.51x3.98x1.12"
Weight 720 g | 1.58 lbs
Vibration sensistivity see spec 7.7g rms
1hr/axis
Low g sensitivity n/a 2E-10/g



Applications

It is typically used in the following applications:

  • Mobile & wired telecom/datacom infrastructures
  • Military communications, SATCOM & surveillance systems
  • High precision instruments
  • Time & frequency systems

Software

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LNRClok-1500

Low Noise Rb Clock (LNRClok-1500)

The LNRClok-1500 is a smart, low cost, low noise, and compact GPS/GNSS-disciplined Rb oscillator (GPSDO) with an optional integrated GPS / GNSS receiver, using u-Blox's advanced 50-channel LEA-6T GPS receiver with a 6-position engine and anti-jamming technology. It's GNSS ready to support multi-navigational satellite system receivers, including GPS, Galileo, GLONASS, IRNSS, and BDS / COMPASS. It is compatible to the Stanford PRS10 model and fits in a compact 1U chassis. The LNRClok uses the patented, adaptive SmarTiming+ technology, disciplining the GPS/GNSS reference at 1ns resolution, providing a host of complex time and frequency features in one package solution, while achieving state-of-the-art performance, reliability and extended lifetime. 

RELATED PRODUCTS: See our product brochure to quickly compare other product features and performance.

Key Features*

*See or download the full Spec in the Documents page. 

Specifications Standard Options
Output
Input


10 MHz




1PPS from GPS/GNSS
or
GPS/GNSS receiver inside
Accuracy @ shipment typ. < 5x11 at 25c
Tempco
Temp
Aging
+1E-10
-10 to 55C
< 5E-11/mth, typ. < 3E-11/mth

-32 to 65C
< 3E-11/mth or 2E-10/yr
Stability (ADEV)
1s
10s
100s

2E-11
8E-12
2E-12

2E-12

2E-12
1E-12
Phase noise @ 10 MHz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
(dBc/Hz)
-95
-120
-140
-145
-150

-103

-133
-153
-158
-161
Holdover < 1µs/24hr*, < 7µs/week*
< 3µs/24hr**
< 7µs/24hr***
*temp profile +2C
**temp profile within 20C
***temp profile within 40C
Warm-up time @ 25C 12 min, 5E-10  < 5-7 min(a)
25 min(b)
Power (operating)


Voltage
Warm-up
< 7-14W


24V
< 38W
< 40-50W(a)
< 24W(b)
+2W with GPS/GNSS inside
12V
< 30W
Size (WxHxL) 128x95x38.1mm | 5.3x3.74x1.5"
Weight 525 g | 1.15 lbs
Vibration sensistivity see spec  
Low g sensitivity n/a  

Applications

It is typically used in the following applications:

  • Mobile & wired telecom/datacom infrastructures
  • Military communications & surveillance systems
  • High precision instruments
  • Time & frequency systems
  • Financial trading systems
  • Big data timing systems
  • Navigational & positioning systems
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