TCA55 Localization Chip level Atomic clock

Learn about our Localization Chip level Atomic clock

The CA55 is a domestically produced chip-level atomic clock based on the CPT principle, offering advantages such as low power consumption, compact size, and fast startup. Suitable for operating temperatures from -40°C to +85°C, it provides CMOS-level 10MHz and 1PPS outputs, boasting short-term stability better than 3E-10/1s, daily drift better than 3E-11, and monthly aging less than 5E-10. It supports external calibration using 1PPS or analog voltage, making it suitable for applications such as navigation, communications, unmanned equipment, marine geophysical exploration, and instrumentation.

Learn about our Localization Chip level Atomic clock

The CA55 is a domestically produced chip-level atomic clock based on the CPT principle, offering advantages such as low power consumption, compact size, and fast startup. Suitable for operating temperatures from -40°C to +85°C, it provides CMOS-level 10MHz and 1PPS outputs, boasting short-term stability better than 3E-10/1s, daily drift better than 3E-11, and monthly aging less than 5E-10. It supports external calibration using 1PPS or analog voltage, making it suitable for applications such as navigation, communications, unmanned equipment, marine geophysical exploration, and instrumentation.

Important Features

  • Operating temperature range -40℃ ~+85℃
  • The short-term stability is better than the 8E-11/1s
  • Small size, size of 41×36×17mm
  • Low power consumption, stable power consumption at room temperature <1.8W
  • Appearance and installation dimensions compatible with SA.45s
  • Accepts external 1PPS discipline and analog voltage calibration

Important Features

Test ItemConditionTechnical Indicators
Output frequency10MHz,1-way CMOS square wave
Factory accuracyAfter calibration≤5×10-¹¹¹
Frequency controlVoltage pressure contorl0~5V,with the total range of at least ±1×10⁻⁸
CNC calibrationCoarse resolution 2×10⁻¹⁰, fine resolution <1×10⁻¹²
Locking timeIndoor temperature≤180s
Frequency stability1sStandard type :≤1×10⁻¹⁰;ADEV8 :≤2.5×10⁻¹¹
Frequency stability10sStandard type:1×10⁻¹⁰;ADEV8 :≤2.5×10⁻¹¹
Frequency stability100sStandard type :≤3×10⁻¹¹;ADEV8 :≤8×10⁻¹²
Phase noise1Hz≤-50dBc/Hz
Phase noise10Hz≤-80dBc/Hz
Phase noise100Hz≤-115dBc/Hz
Phase noise1kHz≤-130dBc/Hz
Phase noise10kHz≤-140dBc/Hz
Frequency drift rate≤5×10⁻¹¹/day;FD3: ≤3×10⁻¹¹/day
Frequency reproducibilitySwitch 24h±5×10-¹¹
Temperature and Frequency Characteristics≤5×10-¹⁰
Working temperatureEnvironmental temperature-40℃~+70℃; OT85: -40℃~+85℃
Storage temperature-55℃~+125℃
power supply±5%+3.3V
Rate of workPreheat≤10W
Rate of workSteady state(indoor temperature)≤1.5W
External DimensionBody size41mm×36mm×17mm
Weight<50g

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-way1-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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