Visual Overview
Technical Details
Comprehensive specifications and technical information
Overview
The XHTF1011 High Accuracy Rubidium Oscillator is designed to provide unparalleled frequency accuracy and stability in demanding applications. Its compact form factor, high reliability, and robust performance make it ideal for integration into critical time-frequency systems. For inquiries, please contact us.
Features
- Operates effectively across a wide temperature range (-40°C to +70°C).
- Compact structure with high reliability.
- Fast 1PPS discipline and synchronization.
- Specialized unlock holding function for enhanced stability.
- RS-232C serial communication interface for control and monitoring.
- Suitable for harsh environments, including airborne, vehicular, and military applications.
Applications
- Integrated into time-frequency systems requiring high reliability and harsh environment tolerance, such as airborne, vehicular, and shipborne platforms.
Main Specifications
Core Specifications
| Specification | Details | ||
|---|---|---|---|
| Short-term Stability | Option-05 | 1s | 5E-12 |
| ++::++ | 10s | 1.5E-12 | |
| ++::++ | 100s | 5E-13 | |
| Option-10 | 1s | 1E-11 | |
| ++::++ | 10s | 3E-12 | |
| ++::++ | 100s | 1E-12 | |
| Option-30 | 1s | 3E-11 | |
| ++::++ | 10s | 1E-11 | |
| ++::++ | 100s | 3E-12 |
| Specification | Details | ||
|---|---|---|---|
| Aging (Frequency Drift) | Option-05 | <5E-13/day | |
| Option-30 | <3E-12/day |
| Specification | Details | ||
|---|---|---|---|
| Phase Noise (SSB) | Option-U | @1Hz | -87 dBc/Hz |
| ++::++ | @10Hz | -107 dBc/Hz | |
| ++::++ | @100Hz | -142 dBc/Hz | |
| ++::++ | @1kHz | -152 dBc/Hz | |
| ++::++ | @10kHz | -155 dBc/Hz | |
| Option-L | @1Hz | -80 dBc/Hz | |
| ++::++ | @10Hz | -90 dBc/Hz | |
| ++::++ | @100Hz | -130 dBc/Hz | |
| ++::++ | @1kHz | -145 dBc/Hz | |
| ++::++ | @10kHz | -150 dBc/Hz | |
| Option-N | @1Hz | -75 dBc/Hz | |
| ++::++ | @10Hz | -85 dBc/Hz | |
| ++::++ | @100Hz | -125 dBc/Hz | |
| ++::++ | @1kHz | -140 dBc/Hz | |
| ++::++ | @10kHz | -145 dBc/Hz |
| Specification | Details | ||
|---|---|---|---|
| External 1PPS Quick Discipline | 60 minutes | 10⁻¹¹ level | |
| 90 minutes | 10⁻¹² level |
| Specification | Details | ||
|---|---|---|---|
| Adjustment range | Internal mechanical adjustment | >-1E-9~+1E-9 | |
| External electric level adjustment | >-1E-9~+1E-9 | ||
| Software adjustment | >-1E-9~+1E-9 |
| Specification | Details | ||
|---|---|---|---|
| Status monitoring | Lock state indication | <0.4V lock | >4V unlock |
| Hold state indication | <0.4V holding | >4V non-holding |
| Specification | Details | ||
|---|---|---|---|
| Temperature | Option T | 1.5E-10 | |
| Option J | 3E-10 | ||
| Option P | 5E-10 |
Pin Connection Details
| Pin Number | Function | Pin Number | Function |
|---|---|---|---|
| 1 | GND | 9 | 1PPS Output |
| 2 | RXD (RS-232C) | 10 | Lock Status |
| 3 | TXD (RS-232C) | 11 | Holding State |
| 4 | GND | 12 | N/A |
| 5 | +24 VDC | 13 | N/A |
| 6 | +24 VDC | 14 | GND |
| 7 | Frequency Adjustment | 15 | GND |
| 8 | 1PPS Input | —— |
Frequently Asked Questions
Common questions about XHTF1011 Rubidium Frequency Standard
What environments can the XHTF1011 operate in?
The XHTF1011 operates across a wide -40°C to +70°C range and includes a specialized unlock-holding function for added stability, making it suitable for harsh airborne, vehicular, and shipborne platforms.
What frequency stability options does the XHTF1011 offer?
Stability is selectable. Option-05 provides 5×10⁻¹² at 1 s, 1.5×10⁻¹² at 10 s, and 5×10⁻¹³ at 100 s, while Option-10 and Option-30 offer other stability grades. Aging is as low as <5×10⁻¹³/day on Option-05.
How quickly can the XHTF1011 discipline to an external 1PPS reference?
With external 1PPS quick disciplining it reaches the 10⁻¹¹ level within 60 minutes and the 10⁻¹² level within 90 minutes, controlled and monitored over its RS-232C interface.
What phase-noise performance is available on the XHTF1011?
The low-noise Option-U delivers 10 MHz phase noise of -87 dBc/Hz at 1 Hz, -107 dBc/Hz at 10 Hz, -142 dBc/Hz at 100 Hz, and -152 dBc/Hz at 1 kHz, with Option-L and Option-N grades available for other requirements.
