Spectratime GXClok-500 GPS/GNSS OCXO Clock Module

GXClok-500 Oscillator Overview

The GXClok-500 is a smart, low cost, ultra small GPS/GNSS-disciplined OCXO clock module (GPSDO) or a fully GPS/GNSS-integrated OCXO clock module, using the advanced u-Blox's M8-T GPS/GNSS receiver.

It uses the auto-adaptive SmarTiming+ technology, disciplining the GPS/GNSS reference up to 100,000 seconds at 1ns resolution, depending on the GPS/GNSS' 1PPS reference noise and signal-impairment level. It provides a host of complex time and frequency features in a single module, while achieving state-of-the-art performance, reliability and extended lifetime.

GXClok-500 Features & Applications

Key Features

Specifications	Standard	Options
Output Input	10 MHz	1PPS from GPS/GNSS or GPS/GNSS receiver inside
Accuracy @ shipment	+1E-12 GPS/GNSS-locked +3E-10 GPS/GNSS-unlocked
Tempco Temp Aging	< 6E-9 -10 to 70C +3E-10/day	-40 to 85C +1E-10/day
Stability (ADEV) 1s	5E-12	2E-12
Phase noise @ 10 MHz 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz	(dBc/Hz) -95 -120 -140 -145 -150
Holdover	< 25µs/24hr	< 10µs/24hr
Warm-up time @ 25C	7 min, 1E-7
Power (operating) Voltage Warm-up	< 250mA 12V < 700mA
Size (WxHxL)	76x20x38mm \| 3x0.8x1.5"
Weight	40 g \| 1.41 oz
Vibration sensistivity	see spec
Low g sensitivity	n/a

Applications

It is typically used in the following applications:

Mobile & wired telecom, datacom and broadcast infrastructures
Military communications, SATCOM & surveillance systems
High precision instruments
Time & frequency systems
Financial trading systems
Big data timing systems
Navigational & positioning systems

Resources

Datasheets
iSync+ Smart GXClok-500 Short Spec More Info Smart & Fully Integrated GPS/GNSS Receiver & Crystal Oscillator Module (GXClok-500)	pdf - 534 KB Monday, November 9, 2020 [ Permalink ]
Technical Notes and Briefs
GNSS LEA-6T and LEA-M8T in iSync devices	pdf - 870 KB Tuesday, September 24, 2019 [ Permalink ]
Leap Second Solution for Spectratime GXClok-500	pdf - 58 KB Wednesday, December 12, 2018 [ Permalink ]