描述
FireFly TM是一种非常小的GPSDO，具有非常低的功耗，提供类似于原子频率标准的长期性能，并支持移动和固定应用。
FireFly TM体积只有1.25立方英寸，当锁定到GPS时，FireFly TM可提供Stratum-1长期性能，24小时内的平均值超过10万亿分之一（1E-011），其尺寸仅是其他产品的1/2。可生成一个OCXO驱动的1PPS输出，该输出与UTC的相位同步度优于100ns（rms），以及一个同步的低噪声+12dBm 10MHz正弦波输出。FireFly TM易于集成到任何需要稳定准确参考时钟的应用中，并且可以通过行业标准SCPI命令通过RS-232端口进行监控。FireFly TM具有出色的相位噪声和杂散抑制，以及非常低的抖动，通常功耗仅为1.4W。
FireFly-1A 订货有以下几个选项可选：
- 工作温度范围：0°C to +60°C （标准范围）。
- 工作温度范围：-40°C to +70°C （扩展温度范围）。
- 6V 电源选项。
标准温度范围
- 尺寸：1.0 X 2.5 X 0.5 英寸
- 小于1分钟预热时间
- 50通道WAAS GPS接收机
- 非常低的功率
| 技术参数 | ||||
| 1 PPS Accuracy | ±50ns to UTC RMS (1-Sigma) GPS Locked | |||
| Holdover Stability | <±11us over 3 Hour Period @+25°C (No Motion) | |||
| 1 PPS Output (OCXO Flywheel Generated) | 3.3VDC CMOS | |||
| RS-232 Control | NMEA and SCPI-99 Control Commands 1PPS Level Output for Linux SNTP Server Software (with D Sub RTS pin) | |||
| Avionics Support | 3D Velocity Vector (Velocity Output for the X, Y, and Z planes) | |||
| GPS Frequency | L1, C/A 1574MHz | |||
| GPS Antenna | Active or Passive | |||
| GPS Receiver | 50 Channels, Mobile, WAAS, EGNOS, MSAS capable | |||
| Sensitivity | Acquisition –144 dBm, Tracking -160 dBm | |||
| TTFF | Cold Start – <45 sec, Warm Start – 1 sec, Hot Start – 1 sec | |||
| ADEV | 1s – 1E-11 | |||
| TTL Alarm Output | GPS Unlock and Hardware Failure, and LOCK indicators | |||
| Warm Up Time / Stabilization Time | <5 min at +25°C to 1E-08 Accuracy | |||
| Supply Voltage (Vdd) | 8.0V to 14.0 VDC (12 VDC Nominal) | |||
| Power Consumption | <1.8W Max, 1.35W Typ. | |||
| Operating Temperature | 0°C to +60°C | |||
| Storage Temperature | -45°C to +85°C | |||
| Oscillator Specification: | ||||
| Frequency Output | 10MHz Sine Wave | |||
| 10MHz Retrace | ±2E-08 After 1 Hour @ +25°C | |||
| Frequency Stability Over Temperature (Unlock Condition) | ±2.5E-08 | |||
| Output Amplitude | +13dBm ± 3dBm | |||
| Warm Up Time | < 1 min @ +25°C | |||
| Phase Noise | 1Hz | -80dBc/Hz | ||
| 10Hz | -110dBc/Hz | |||
| 100Hz | -135dBc/Hz | |||
| 1kHz | -145dBc/Hz | |||
| 10kHz | <-145dBc/Hz | |||
| Connections: | Connector Type: | |||
| 1PPS Output, 10MHz Output | SMB (SMA upon special order) | |||
| RS-232 | 3 Pin | |||
扩展温度范围选项
- 工作温度范围：-40°C to +75°C
- 尺寸：1.0 X 2.5 X 0.5 英寸
- 小于1分钟预热时间
- 50通道WAAS GPS接收机
| 技术参数 | ||||
| 1 PPS Accuracy | ±50ns to UTC RMS (1-Sigma) GPS Locked | |||
| Holdover Stability | <±11us over 3 Hour Period @+25°C (No Motion) | |||
| 1 PPS Output (OCXO Flywheel Generated) | 3.3VDC CMOS | |||
| RS-232 Control | NMEA and SCPI-99 Control Commands 1PPS Level Output for Linux SNTP Server Software (with D Sub RTS pin) | |||
| Avionics Support | 3D Velocity Vector (Velocity Output for the X, Y, and Z planes) | |||
| GPS Frequency | L1, C/A 1574MHz | |||
| GPS Antenna | Active or Passive | |||
| GPS Receiver | 50 Channels, Mobile, WAAS, EGNOS, MSAS capable | |||
| Sensitivity | Acquisition –144 dBm, Tracking -160 dBm | |||
| TTFF | Cold Start – <45 sec, Warm Start – 1 sec, Hot Start – 1 sec | |||
| ADEV | 1s – 1E-11 | |||
| TTL Alarm Output | GPS Unlock and Hardware Failure, and LOCK indicators | |||
| Warm Up Time / Stabilization Time | <5 min at +25°C to 1E-08 Accuracy | |||
| Supply Voltage (Vdd) | 8.0V to 14.0 VDC (12 VDC Nominal) | |||
| Power Consumption | <2W Max, 1.35W Typ. | |||
| Operating Temperature | -40°C to +75°C | |||
| Storage Temperature | -45°C to +85°C | |||
| Oscillator Specification: | ||||
| Frequency Output | 10MHz Sine Wave | |||
| 10MHz Retrace | ±2E-08 After 1 Hour @ +25°C | |||
| Frequency Stability Over Temperature (Unlock Condition) | ±2.5E-07 | |||
| Output Amplitude | +13dBm ± 3dBm | |||
| Warm Up Time | < 1 min @ +25°C | |||
| Phase Noise | 1Hz | -80dBc/Hz | ||
| 10Hz | -110dBc/Hz | |||
| 100Hz | -135dBc/Hz | |||
| 1kHz | -145dBc/Hz | |||
| 10kHz | <-145dBc/Hz | |||
| Connections: | Connector Type: | |||
| 1PPS Output, 10MHz Output | SMB (SMA upon special order) | |||
| RS-232 | 3 Pin | |||
