TRM60 Miniature Rubidium atomic clock

Learn about our Miniature Rubidium atomic clock

The RM60 is a miniature intelligent atomic clock that supports 1PPS discipline and output, and operates in -40°C to +75°C environments. It offers a variety of performance options: the standard model offers 24-hour discipline and timekeeping of <1μs, while the high-performance version can replace imported miniature atomic clocks, offering excellent frequency stability, phase noise, and temperature drift performance. It is suitable for applications in power, communications, test equipment, frequency sources, electronic countermeasures, and unmanned equipment.

TRM60 Miniature Rubidium atomic clock

Learn about our Miniature Rubidium atomic clock

The RM60 is a miniature intelligent atomic clock that supports 1PPS discipline and output, and operates in -40°C to +75°C environments. It offers a variety of performance options: the standard model offers 24-hour discipline and timekeeping of <1μs, while the high-performance version can replace imported miniature atomic clocks, offering excellent frequency stability, phase noise, and temperature drift performance. It is suitable for applications in power, communications, test equipment, frequency sources, electronic countermeasures, and unmanned equipment.

Important Features

  • Small volume 51*51*18mm, compatible with most miniature atomic clocks
  • The short-term stability is better than the 3E-11/1s
  • Room temperature stable power ≤ 8W (measured 5.5W)
  • 1PPS Input and 1PPS Output Functions
  • +5V power supply, can maintain performance within -40~+75℃
TRM60 Miniature Rubidium atomic clock manual

Important Features

Test ItemConditionTechnical Indicators
Output frequency10MHz，1-way square wave ，3.3V CMOS
Factory accuracyAfter calibration≤5×10-¹¹¹
Frequency controlVoltage pressure contorl0~5V, total range at least ±4×10⁻⁹, resolution better than 1×10⁻¹¹
CNC calibrationFine adjustment range > ±4×10⁻⁹, resolution better than 1×10⁻¹², coarse adjustment range > ±1×10⁻⁶
Locking timeIndoor temperature≤5min
Frequency stability1sStandard：≤1×10⁻¹⁰；A5：≤5×10⁻¹¹；A3：≤3×10⁻¹¹
Frequency stability10sStandard：≤3×10⁻¹¹；A5：≤1.6×10⁻¹¹；A3：≤1×10⁻¹¹
Frequency stability100sStandard：≤1×10⁻¹¹；A5：≤5×10⁻¹²；A3：≤3×10⁻¹²
Phase noise1HzStandard：/；PN65：≤-65dBc/Hz；PN85：≤-85dBc/Hz
Phase noise10HzStandard:≤-90dBc/Hz；PN65：≤-100dBc/Hz；PN85：≤-120dBc/Hz
Phase noise100HzStandard:≤-120dBc/Hz；PN65：≤-130dBc/Hz；PN85：≤-140dBc/Hz
Phase noise1kHz≤-140dBc/Hz
Phase noise10kHz≤-145dBc/Hz
Frequency drift rate/day±2.5 x 10-¹¹; FD10: ±1 x 10-¹¹; FD5: ±5 x 10-¹²; FD3: ±3 x 10-¹²
Temperature and Frequency Characteristics0~70℃≤7 x 10-¹⁰; TC50: ≤3 x 10-¹⁰; TC20: ≤1 x 10-¹⁰; TC10: ≤5 x 10-¹¹¹
Temperature and Frequency Characteristics-40~75℃≤1×10-⁹; ≤5×10-¹⁰; ≤2×10-¹⁰; ≤1×10-¹⁰
Working temperatureBottom plate temperature-40℃~+75℃
Storage temperature-55℃~+100℃
power supply±4%+5V
Rate of workPreheat≤15W (if it is not necessary to adapt to -40℃ ,it can be reduced)
Rate of workSteady state(indoor temperature)≤8W (measured about 5.5W)
External DimensionBody size51mm×51mm×18mm
Weight<100g
1PPS input+3V~+5V TTL，Judder100ns
1PPS outputRising edge/falling edge: ≤10ns, pulse width: 1ms
Taming accuracyAfter 24h of synchronizationTaming jet lag：±50ns，Time-keeping accuracy：≤1us@24h，Frequency accuracy：≤1×10⁻¹²@24h

Typical phase noise

Frequency stability typical value

产品型号一览表

特点参数 T710T760T640T770TRA85TRS75TCA55TRM60CX5228CX910
外同步输入GNSS ✓✓✓✓——————
1PPS ✓——✓✓✓✓✓——
10MHz ———✓——————
频率输出10MHz正弦波 8路4路4路5路1-way1-way——1-way4路
10MHz方波 6路—————1-way1-way——
可选 1/5MHz100MHz100MHz5/100MHz——————
—NTPIRIG-B———————
Stability1s <3E-12<5E-12<3E-12≤4E-13≤ 3×10⁻¹²≤ 6×10⁻¹²≤ 8×10⁻¹¹≤ 3×10⁻¹¹≤ 1.5×10⁻¹³≤ 1.1×10⁻¹³
10s <3E-12<5E-12<3E-12≤3E-13 ≤ 1.5×10⁻¹²≤ 2×10⁻¹²≤ 2.5×10⁻¹¹≤ 1×10⁻¹¹≤2×10-¹³≤2×10-¹³
100s <3E-13<5E-13<5E-12≤7E-14≤ 5×10⁻¹³≤ 6×10⁻¹³≤ 8×10⁻¹²≤ 3×10⁻¹²≤4×10⁻¹³≤5×10-¹³
日(GNSS锁定) <1E-12<1E-12<1E-12≤3E-14——————
Phase noise1Hz ≤-95dBc/Hz≤-95dBc/Hz≤-100dBc/Hz≤-120dBc/Hz≤ -95dBc/Hz≤ -85dBc/Hz≤ -50dBc/Hz≤ -85dBc/Hz≤ -123-126*
10Hz ≤-130dBc/Hz≤-130dBc/Hz≤-130dBc/Hz≤-140dBc/Hz≤ -130dBc/Hz≤ -120dBc/Hz≤ -80dBc/Hz≤ -120dBc/Hz≤ -145 ≤ -148
100Hz ≤-145dBc/Hz≤-145dBc/Hz≤-145dBc/Hz≤-155dBc/Hz≤ -150dBc/Hz≤ -145dBc/Hz≤ -115dBc/Hz≤ -140dBc/Hz≤ -155 ≤ -155
1kHz ≤-155dBc/Hz≤-155dBc/Hz≤-160dBc/Hz≤-160dBc/Hz≤ -160dBc/Hz≤ -150dBc/Hz≤ -130dBc/Hz≤ -140dBc/Hz≤ -160 ≤ -160
10kHz ≤-158dBc/Hz≤-158dBc/Hz≤-160dBc/Hz≤-160dBc/Hz≤ -160dBc/Hz≤ -155dBc/Hz≤ -140dBc/Hz≤ -145dBc/Hz≤ -165 ≤ -163
distortionHarmonic ≤-45dBc≤-45dBc≤-45dBc—≤ -30dBc≤ -30dBc—≤ -80dBc≤ -40dBc≤ -40dBc
Non-harmonic ≤-80dBc≤-80dBc≤-80dBc—≤ -80dBc≤ -70dBc——≤ -80dBc≤ -80dBc
Pulse outputNumber of way 4 4 4 4 1111——
Synchronization accuracy 20ns20ns20ns10ns——————
Frequency drift rate/day ————±5×10⁻¹³±1×10⁻¹²≤3×10-¹¹¹±3×10⁻¹²≤3×10-¹⁰≤1×10-¹⁰
物理电气特性Working temperature -10℃~+55℃-10℃~+55℃-10℃~+55℃-10℃~+55℃-40℃~+65℃-40℃~+65℃-40℃~+85℃-40℃~+75℃ -20℃~+70℃0℃~+40℃
存健温度 -45℃~+85℃-45℃~+85℃-45℃~+75℃-55℃-+85℃-40℃~+85℃-40℃~+85℃-55℃~+125℃-55℃~+100℃-40℃~+85℃-55℃~+125℃
power supply 220V±20%220V±20%220V±20%220V±20%+12V~+15V或+24V+12V~+15V,±4% +3.3V±5% +5V±4%+12VDC+14~+125℃
Rate of work 50W60W60W预热70W,稳态≤30W预热≤45W,稳态≤15W预热≤28.5W,稳态≤14.5W预热≤10W,稳态≤1.8W预热≤15W,稳态≤8W≤7.2W≤27W
External Dimension 2U半宽2U2U2U116mm×79mm×38mm68mm×68mm×18mm 41mm×36mm×17mm51mm×51mm×18mm50mm×50mm×19mm5inch×3inch×3inch
Weight 2Kg5Kg3.5Kg5kg≤500g≤300g≤50g<100g——
驯服及守时After 24h of synchronization 200ns200ns10us30ns(同步20d后)同步24h后≤1us≤1us—≤1us——

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