ACT4587F45 CSAC Atomic Clock
The ACT4587F45 is a chip-scale atomic clock (CSAC) that utilizes advanced Rubidium-87 atomic resonance and Coherent Population Trapping (CPT) technology. This ultra-compact and energy-efficient atomic clock is designed to meet the demands of modern timing applications requiring exceptional precision, reliability, and portability. It is ideal for critical systems operating in challenging environments.
The ACT4587F45 is engineered for industries where size, power efficiency, and precision are paramount. Combining the reliability of a Rubidium-87 atomic clock with modern CPT technology, it delivers unmatched performance in a compact, durable design.
Features
- - Rubidium-87 atomic standard ensures unparalleled frequency stability
- - Compact dimensions: 42×36×12 mm
- - Lightweight: ≤35 g
- - Low power consumption: ≤250 mW
- - High frequency stability: ±3×10⁻¹⁰ over the operating temperature range
- - Rapid warm-up time: ≤180 seconds
- - Long-term frequency drift: ±1×10⁻¹¹/day
- - Extended operating temperature range: -40°C to +85°C
- - CMOS-compatible 10 MHz frequency output
Main Specifications
| Output Frequency | |
| Value | 10 MHz (CMOS logic) |
| Initial Accuracy | |
| Value | ±5×10⁻¹¹ (at shipment, 25°C) |
| Short-term Stability (Allan Deviation) | |
| 1s | ≤2×10⁻¹⁰ |
| 10s | ≤6×10⁻¹¹ |
| 100s | ≤2×10⁻¹¹ |
| Temperature Stability | |
| Value | ±3×10⁻¹⁰ (−40°C to +85°C) |
| Aging Rate | |
| Daily | ±1×10⁻¹¹/day |
| Yearly | ±1×10⁻⁹/year |
| Power Consumption | |
| Warm-up Mode | ≤750 mW |
| Steady-State Mode | ≤250 mW |
| Warm-Up Time | |
| Value | ≤180 seconds (at 25°C) |
| Output Signals | |
| Logic Type | CMOS logic |
| VOH | ≥ 2.5 V |
| VOL | ≤ 0.3 V |
| Output Load | 1 MΩ or higher |
| 1PPS Output | |
| Pulse Width | 10 ms ± 50 μs |
| Signal Rise Time | ≤10 ns |
| 1PPS Input | |
| Logic Level | 3.3 V CMOS |
| Required Pulse Width | ≥10 μs |
| Timing Precision | ±100 ns |
| Phase Noise | |
| @ 1 Hz | -85 dBc/Hz |
| @ 10 Hz | -110 dBc/Hz |
| @ 100 Hz | -130 dBc/Hz |
| @ 1 kHz | -140 dBc/Hz |
| Environmental Specifications | |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +95°C |
| Shock Resistance | IEC 60068-2-27, Test Ea: 50 G, 11 ms duration |
| Vibration Resistance | IEC 60068-2-06, Test Fc: 10 Hz to 500 Hz, 10 G |
Product Applications
- - Navigation: GPS-denied positioning and autonomous navigation
- - Telecommunications: Synchronization for 4G/5G networks and other critical infrastructures
- - Military and Aerospace: Precise timing in harsh environments
- - Scientific Research: Reliable timekeeping for measurement systems
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