MTI introduces a next-generation atomic reference for rugged military and airborne applications, combining cesium atomic clock performance with MTI's patented low-G sensitivity DOCxo in a small form factor hermetically sealed package. The precision reference produces highly accurate frequencies (typically better than 5e-11 after 24 hours) with very low phase noise performance in dynamic environments. The device can also be locked to an external frequency reference or GPS. The entire assembly consumes less than 16W at -40°C (total continuous power) and provides less than 9 minutes of fast warm-up at -40°C (reference time 30 minutes) with an accuracy better than 4E-10. The RS-422 provides communication, control, and status reporting, as well as wired RS-422 level status outputs. The thermal interface allows for use with minimal direct air flow, e.g. encountered at high altitudes. There are a variety of options to choose from to provide a customized, high-performance, next-generation atomic frequency reference.
Design Notes: The base model can be customized to your specifications within the performance range shown below.
Electrical properties and characteristics:
Frequency outputs: 10MHz (1) and 100 MHz (5).
Supply voltage: 12VDC and 15VDC
Warm-up power consumption: 12VDC, maximum 24W;15VDC, 4 W max
Phase Noise: View a phase noise map.
Continuous power consumption: 12VDC, 12W, 15VDC, 375w @ 40°c
Operating temperature: -30°C to +70°C, non-operating temperature range: -55°C to 90°C
Temperature stability: 50e-10pp (reference = internal cesium).
Magnetic sensitivity: 30e-11 Gauss (reference = internal cesium).
Aging (max), internal CS locked: 40e-11, 40e-10, 12e-09, (after 30 days of continuous operation, reference = internal cesium).
Acceleration sensitivity: better than 10e-09 g axis (consult factory for low g option).
Retrospective: Better than 2 after 5 hours0e-11 (reference = internal cesium).
Warm-up time Settling time: -30 °C t o 4Less than 12 minutes at 0e-10 (reference time 30 minutes).
Allen bias: 1s 10es 1.0es 1.5es 1.0e-11 (reference = internal cesium).
Atomic Standard: Internal Cesium Clock.
Electromagnetic interference: EMI protection.
Rugged design: Suitable for harsh industrial environments.
Serial interface: RS-422 serial communication, user command and control device.
Selectable Reference: Selectable internal cesium, external 10MHz, 1PP, or optional internal GPS receiver using hardware bits or software serial communication ports.
Bitwise Function Options: Hardware uses 3 hardware wires or software serial communication ports (RS-422).
Auto-Calibration: Internal CS auto-calibration from an external reference with a manual calibration resolution better than 10e-12
Moisture-sealed enclosure: Meets MIL-STD-202 standards.
Connections: RF I/O, 7 SMA female connectors.
The power-bit-comm is on a 31-pin micro-d.
Package size: 60“x7.0”x1.5", weight 35lbs，6x 0.201" diameter flange mounting holes, see ICD
Applications:
Low G sensitivity for rugged military applications.
Airborne and shipborne.
Terrestrial and satellite communications.
Secure communication links.
Rubidium clock replacement.
For more information about the MTI-MILLIREN brand, please consult LDTEQcom