Rubidium Frequency Standard STM-Rb Series
Rubidium Clock
Stability better than 8E-12/s
Super Value for Money
10MHz output
1PPS output
With 1PPS taming function
Digital Surveillance
High Performance Rubidium Clock
Stability better than 5E-12/s
Stability better than 6E-13/100s
Digital Surveillance
10MHz output
1PPS output
With 1PPS taming function
Ultra-thin Rubidium Clock
Thickness is only 19mm，Weight only 150g
10MHz output
1PPS output
With 1PPS taming function
Digital Surveillance
Miniature Rubidium Clock
50mm×50mm Size
Replaceable SA.31，SA.35，SA.55
10MHz output
1PPS output
With 1PPS taming function
Digital Surveillance
Specification parameters
PRODUCT FEATURES | ST-Rb Rubidium Clock | ST-Rb-H High Performance Rubidium Clock | ST-Rb-S Ultra-thin Rubidium Clock | STMRb-50 Miniature Rubidium Clock |
Outputs | Frequency: 10MHz(One channel;sine wave) Out Power: 11±2dBm(load impedance 50Ω@10MHz) Factory Frequency accuracy: ＜±5E-11(＋25℃) Short-term satability: ＜8.0E-12/s; ＜4.0E-12/10s; ＜1.0E-12/100s Open to close: ＜±1E-11(24h,48h,24h,25℃) Aging Rate: ＜±5.0E-11/month; ＜±3.0E-9/10 years Harmonic/Spurious: ＜-80dBc/＜-40dBc Phase Noise: ＜-95dBc/Hz@1Hz; ＜-130dBc/Hz@10Hz; ＜-140dBc/Hz@100Hz; ＜-150dBc/Hz@1kHz; ＜-155dBc/Hz@10kHz | Frequency: 10MHz(One channel;sine wave) Out Power: 11±2dBm(load impedance 50Ω@10MHz) Factory Frequency accuracy: ＜±5E-11(＋25℃) Short-term satability: ＜5.0E-12/s; ＜2.0E-12/10s; ＜6.0E-13/100s Open to close: ＜±1E-11(24h,48h,24h,25℃) Aging Rate: ＜±3.0E-11/month; ＜±3.0E-9/10 years Harmonic/Spurious: ＜-80dBc/＜-40dBc Phase Noise: ＜-95dBc/Hz@1Hz; ＜-130dBc/Hz@10Hz; ＜-140dBc/Hz@100Hz; ＜-150dBc/Hz@1kHz; ＜-155dBc/Hz@10kHz | Frequency: 10MHz(One channel;sine wave;MMCX-female) Out Power: 11±2dBm(load impedance 50Ω@10MHz) Factory Frequency accuracy: ＜±8E-11(＋25℃) Short-term satability: ＜1.0E-11/s; ＜5.0E-12/10s; ＜2.0E-12/100s Open to close: ＜±8E-11(24h,48h,24h,25℃) Aging Rate: ＜±5.0E-11/month; ＜±5.0E-9/10 years Harmonic/Spurious: ＜-80dBc/＜-40dBc Phase Noise: ＜-95dBc/Hz@1Hz; ＜-125dBc/Hz@10Hz; ＜-135dBc/Hz@100Hz; ＜-145dBc/Hz@1kHz | Frequency: 10MHz(One channel;TL) Output Range: 0-5V(Duty Cycle 50%±10) Factory Frequency accuracy: ＜±8E-11(＋25℃) Short-term satability: ＜5.0E-11/s; ＜3.0E-11/10s; ＜8.0E-12/100s Open to close: ＜±8E-11(24h,48h,24h,25℃) Aging Rate: ＜±8.0E-11/month; ＜±8.0E-9/10 years Harmonic/Spurious: ＜-80dBc/＜-40dBc Phase Noise: ＜-65dBc/Hz@1Hz; ＜-85dBc/Hz@10Hz; ＜-115dBc/Hz@100Hz; ＜-130dBc/Hz@1kHz; ＜-140dBc/Hz@10kHz |
Timing outputs | Rise time: ＜2ns pulse duration: 100ms Jitter: ＜1ns RMS Amplitude: ＞4.5V(load of 15pF) | Rise time: ＜2ns pulse duration: 100ms Jitte: ＜1ns RMS Amplitude: ＞4.5V(load of 15pF) | Rise time: ＜2ns pulse duration: 100ms Jitte: ＜1ns RMS Amplitude: ＞4.5V(load of 15pF) | Rise time: ＜2ns pulse duration: 100ms Jitte: ＜1ns RMS Amplitude: ＞4.5V(load of 15pF) |
Sync input | PPS Input: 2.5-5.5V Taming Accuracy: ＜1E-12(Power on for 2 hours，Taming time greater than 1 day) | PPS Input: 2.5-5.5V Taming Accuracy: ＜1E-12(Power on for 2 hours，Taming time greater than 1 day) | PPS Input: 2.5-5.5V Taming Accuracy: ＜1E-12(Power on for 2 hours，Taming time greater than 1 day) | PPS Input: 3-5V Taming Accuracy: ＜1E-12(Power on for 2 hours，Taming time greater than 1 day) |
Power | Input Voltage: +24Vdc Power: ≤15W(+24Vdc@-25℃); ≤7W(+24Vdc@+55℃) | Input Voltage: +24Vdc Power: ≤17W(+24Vdc@-25℃); ≤8W(+24Vdc@+55℃) | Input Voltage: +12Vdc±0.5Vdc Maximum Current(A): 1±0.1(+25℃); Steady-state current(A): ≤0.5(+25℃) | Input Voltage: +12Vdc±0.5Vdc ≤10W(+12Vdc@-25℃); ≤6W(+12Vdc@+55℃) |
Environment | Working Temp: -30℃-+60℃ sensitivity: ＜3.0E-10(0℃-50℃); ＜6.0E-10(other) | Working Temp: -20℃-+60℃ sensitivity: ＜3.0E-10(0℃-50℃); ＜6.0E-10(other) | Working Temp: -20℃-+60℃ sensitivity: ＜3.0E-10(0℃-50℃); ＜6.0E-10(other) | Working Temp: -25℃-+65℃ sensitivity: ＜3.0E-10(0℃-50℃); ＜6.0E-10(other) |
Size/Weight | Size: 127mmx92.5mmx38.6mm Weight: 490g | Size: 78mmx77mmx40mm Weight: 310g | Size: 89mmx77mmx20mm Weight: 150g | Size: 50mmx50mmx14mm Weight: 100g |
