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)
