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.
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 Item | Condition | Technical Indicators |
|---|---|---|
| Output frequency | 10MHz,1-way CMOS square wave | |
| Factory accuracy | After calibration | ≤5×10⁻¹¹ |
| Frequency control | Voltage pressure contorl | 0~5V,with the total range of at least ±1×10⁻⁸ |
| CNC calibration | Coarse resolution 2×10⁻¹⁰, fine resolution <1×10⁻¹² | |
| Locking time | Indoor temperature | ≤180s |
| Frequency stability | 1s | Standard type :≤1×10⁻¹⁰;ADEV8 :≤2.5×10⁻¹¹ |
| Frequency stability | 10s | Standard type:1×10⁻¹⁰;ADEV8 :≤2.5×10⁻¹¹ |
| Frequency stability | 100s | Standard type :≤3×10⁻¹¹;ADEV8 :≤8×10⁻¹² |
| Phase noise | 1Hz | ≤-50dBc/Hz |
| Phase noise | 10Hz | ≤-80dBc/Hz |
| Phase noise | 100Hz | ≤-115dBc/Hz |
| Phase noise | 1kHz | ≤-130dBc/Hz |
| Phase noise | 10kHz | ≤-140dBc/Hz |
| Frequency drift rate | ≤5×10⁻¹¹/day;FD3: ≤3×10⁻¹¹/day | |
| Frequency reproducibility | Switch 24h | ±5×10⁻¹¹ |
| Temperature and Frequency Characteristics | ≤5×10⁻¹⁰ | |
| Working temperature | Environmental temperature | -40℃~+70℃;OT85: -40℃~+85℃ |
| Storage temperature | -55℃~+125℃ | |
| power supply | ±5% | +3.3V |
| Rate of work | Preheat | ≤10W |
| Rate of work | Steady state(indoor temperature) | ≤1.5W |
| External Dimension | Body size | 41mm×36mm×17mm |
| Weight | <50g |
Typical phase noise
Frequency stability typical value
