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 Item | Condition | Technical Indicators |
|---|---|---|
| Output frequency | 10MHz,1-way CMOS square wave | |
| Factory accuracy | After calibration | ≤5×10-¹¹¹ |
| 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
Product Model List
| Specifications | T710 | T760 | T640 | T770 | TRA85 | TRS75 | TCA55 | TRM60 | CX5228 | CX910 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| External Synchronization Input | GNSS | ✓ | ✓ | ✓ | ✓ | — | — | — | — | — | — |
| 1PPS | ✓ | — | — | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | |
| 10MHz | — | — | — | ✓ | — | — | — | — | — | — | |
| Frequency Output | 10 MHz sine wave | 8-channel | 4-channel | 4-channel | Route 5 | 1-way | 1-way | — | — | 1-way | 4-channel |
| 10 MHz square wave | Route 6 | — | — | — | — | — | 1-way | 1-way | — | — | |
| Optional | 1/5 MHz | 100MHz | 100MHz | 5/100 MHz | — | — | — | — | — | — | |
| — | NTP | IRIG-B | — | — | — | — | — | — | — | ||
| Stability | 1s | <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 | |
| Day (GNSS Lock) | <1E-12 | <1E-12 | <1E-12 | ≤3E-14 | — | — | — | — | — | — | |
| Phase noise | 1Hz | ≤-95dBc/Hz | ≤-95dBc/Hz | ≤ -100 dBc/Hz | ≤-120dBc/Hz | ≤ -95 dBc/Hz | ≤ -85 dBc/Hz | ≤ -50 dBc/Hz | ≤ -85 dBc/Hz | ≤ -123 | -126* |
| 10Hz | ≤-130dBc/Hz | ≤-130dBc/Hz | ≤-130dBc/Hz | ≤-140dBc/Hz | ≤ -130 dBc/Hz | ≤ -120 dBc/Hz | ≤ -80 dBc/Hz | ≤ -120 dBc/Hz | ≤ -145 | ≤ -148 | |
| 100Hz | ≤-145dBc/Hz | ≤-145dBc/Hz | ≤-145dBc/Hz | ≤-155dBc/Hz | ≤ -150dBc/Hz | ≤ -145dBc/Hz | ≤ -115 dBc/Hz | ≤ -140dBc/Hz | ≤ -155 | ≤ -155 | |
| 1kHz | ≤-155dBc/Hz | ≤-155dBc/Hz | ≤-160dBc/Hz | ≤-160dBc/Hz | ≤ -160dBc/Hz | ≤ -150dBc/Hz | ≤ -130 dBc/Hz | ≤ -140dBc/Hz | ≤ -160 | ≤ -160 | |
| 10kHz | ≤-158dBc/Hz | ≤-158dBc/Hz | ≤-160dBc/Hz | ≤-160dBc/Hz | ≤ -160dBc/Hz | ≤ -155dBc/Hz | ≤ -140dBc/Hz | ≤ -145dBc/Hz | ≤ -165 | ≤ -163 | |
| distortion | Harmonic | ≤-45dBc | ≤-45dBc | ≤-45dBc | — | ≤ -30dBc | ≤ -30dBc | — | ≤ -80dBc | ≤ -40dBc | ≤ -40dBc |
| Non-harmonic | ≤-80dBc | ≤-80dBc | ≤-80dBc | — | ≤ -80dBc | ≤ -70dBc | — | — | ≤ -80dBc | ≤ -80dBc | |
| Pulse output | Number of way | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | — | — |
| Synchronization accuracy | 20ns | 20ns | 20ns | 10ns | — | — | — | — | — | — | |
| Frequency drift rate | /day | — | — | — | — | ±5×10⁻¹³ | ±1×10⁻¹² | ≤3×10-¹¹¹ | ±3×10⁻¹² | ≤3×10-¹⁰ | ≤1×10-¹⁰ |
| Physical and Electrical Characteristics | Working temperature | -10℃~+55℃ | -10℃~+55℃ | -10℃~+55℃ | -10℃~+55℃ | -40℃~+65℃ | -40℃~+65℃ | -40℃~+85℃ | -40℃~+75℃ | -20℃~+70℃ | 0℃~+40℃ |
| Cunjian Temperature | -45℃~+85℃ | -45℃~+85℃ | -45°C to +75°C | -55°C to +85°C | -40℃~+85℃ | -40℃~+85℃ | -55℃~+125℃ | -55℃~+100℃ | -40℃~+85℃ | -55℃~+125℃ | |
| power supply | 220V±20% | 220V±20% | 220V±20% | 220V±20% | +12V to +15V or +24V | +12V–+15V, ±41 TP3T | +3.3V±5% | +5V±4% | +12VDC | +14 to +125°C | |
| Rate of work | 50W | 60W | 60W | 70W warm-up, steady-state ≤ 30W | Warm-up ≤ 45 W, steady-state ≤ 15 W | Start-up power ≤ 28.5 W, steady-state power ≤ 14.5 W | Warm-up ≤ 10 W, steady-state ≤ 1.8 W | Warm-up ≤ 15 W, steady-state ≤ 8 W | ≤7.2 W | ≤27 W | |
| External Dimension | 2U half-width | 2U | 2U | 2U | 116mm×79mm×38mm | 68mm×68mm×18mm | 41mm×36mm×17mm | 51mm×51mm×18mm | 50mm×50mm×19mm | 5 inches × 3 inches × 3 inches | |
| Weight | 2Kg | 5 kg | 3.5 kg | 5 kg | ≤500g | ≤300 g | ≤50 g | <100g | — | — | |
| Well-behaved and punctual | After 24h of synchronization | 200 ns | 200 ns | 10 us | 30 ns (20 days after synchronization) | ≤1 µs after 24 hours of synchronization | ≤1 us | — | ≤1 us | — | — |
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