DESCRIPTION
Sync-tech’s frequency standard (BD 1024) delivers exceptional frequency stability. Thanks to a stability specification for 30-day averaging time, the clock can keep extremely predictable time and phase for long periods. Combined with a GPS timing receiver the frequency standard can produce a highly robust, inexpensive, and redundant frequency and time system.
Benefits
Maintains exceptional accuracy and stability even in unstable environments—unsurpassed stability in the lab or field
Accuracy ±1.0 x 10–12 for standard performance; ±5.0 x 10–13 for high performance
Stability ≤1.2 x 10–11 for standard performance; ≤5.0 x 10–12 for high performance (for 1 second averaging time)
Environmental stability ±1.0 x 10–13 for standard performance; ±8.0 x 10–14 for high performance (frequency change for any combination of environmental conditions)
Long-term stability ≤5.0 x 10–14 for standard performance; ≤1.0 x 10–14 for high performance (for 5-day averaging time)
Proven reliability with an average mean time between failures (MTBF) of greater than 160,000 hours
KEY SPECIFICATIONS
PRODUCT FEATURES | SPEC | PARAMETER | REMARK |
Outputs
| Frequency | 10MHz,5MHz,1MHz,100KHz | |
Format | sine | ||
Amplitude | >1Vrms(13dBm) | ||
Harmonic | <-40dBc | ||
Non-harmonic | <-80dBc | ||
Load impedance | 50Ω | ||
Isolation between ports | >110dB | ||
Connector | BNC | ||
Member of outputs | 5MHz(2)10MHz(2)1MHz(1),100KH(1) | ||
Timing outputs
| Format | 1PPS | |
Amplitude | ≥2.4V | ||
Pulse width | ≥20us | ||
Rise time | <2ns | ||
Jitter | < 1ns | ||
Connector | BNC | ||
Sync input | Amplitude | +2~+10V | |
Pulse width | 100ns~100us | ||
Rise time | <50ns | ||
load impedance | 50Ω | ||
Connector | BNC | ||
Stability(Allan Deviation)
| Average time | High Performance | Standard Performance |
1S | 5E-12 | 1.2E-11 | |
10S | 3.5E-12 | 8.5E-12 | |
100S | 8.5E-13 | 2.7E-12 | |
1000S | 2.7E-13 | 8.5E-13 | |
10000S | 8.5E-14 | 2.7E-13 | |
100000S | 2.7E-14 | 8.5E-14 | |
5days | 1.0E-14 | 5E-14 | |
SSB Phase Noise 10MHz | Offset(Hz) | High Performance | Standard Performance |
1 | -105 dBc | -100 dBc | |
10 | -140 dBc | -130 dBc | |
100 | -155 dBc | -145 dBc | |
1k | -162 dBc | -150 dBc | |
10k | -168 dBc | -154 dBc | |
100k | -169 dBc | -154 dBc | |
Accuracy | ≤±5E-13 | ≤±1E-12 |
Frequency deviation curve of a BD1024A cesium clock calibrated at the Chinese Academy of Metrology (test time:45 days, typical values). Each cesium clock is delivered with the results of the clock's calibration.
Stability Indicators for Cesium Clock BD1024 (45-day test time)