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标签: OCXO
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Board Mounted GPSDO (OCXO) Recommended for USRP X300/X310
783173-01 | GPSDO for USRP X Series (PCB-Mounted GPS-Disciplined OCXO) $ 2,130.00 USD
This is a GPS-disciplined, oven-controlled crystal oscillator (GPSDO), which is compatible with a USRP X300 or X310. The GPSDO provides a high-accuracy 10 MHz reference and 1 PPS signal. This allows developers to build system that serve applications with tight synchronization requirements, or global timing alignment within 50 ns.
Overview
This is a GPS-disciplined, oven-controlled crystal oscillator (GPSDO), which is compatible with a USRP X300 or X310. It can also be used with the USRP B200/B210, but the system will require external power. The GPSDO provides a high-accuracy 10 MHz reference and 1 PPS signal, which allow developers to build systems that serve applications with improved frequency accuracy and global timing alignment.
We recommend reading the GPSDO Selection Guide to ensure this is the right device for your application.
Module Specifications 1 PPS Accuracy ±50ns to UTC RMS (1-Sigma) GPS Locked Holdover Stability <±20µs over 3 hour period at +25C 1 PPS Output (OCXO Flywheel Generated) 3.3VDC CMOS RS-232 Control NMEA & SCPI-99 Control Commands, Integrated into UHD GPS Frequency L1, C/A 1574MHz GPS Antenna Active (5V compatible) or Passive GPS Receiver 50 Channels, Mobile, WAAS, EGNOS, MSAS capable Sensitivity Acquisition -142dBm, Tracking -168dBm TTFF Cold Start: <45 sec, Warm Start: 1 sec, Hot Start: 1 sec ADEV 1E-11 at 1s Warm Up Time / Stabilization Time <5 min at +25C to 1E-08 Accuracy Supply Voltage (Vdd) 3.3/5VDC Power Consumption 0.7W Max Operating Temperature 0C to +60C Storage Temperature -45C to 85C Oscillator Specifications Frequency Output 10MHz 10MHz Retrace ±2E-08 after 1 hour at 25C Frequency Stability Over Temperature (Unlock Condition) ±2.5E-08 Warm Up Time < 1 min at +25C Phase Noise at 10MHz 1Hz -75dBc/Hz 10Hz -110dBc/Hz 100Hz -132dBc/Hz 1kHz -142dBc/Hz 10kHz <-145dBc/Hz Additional Resources
Kit Contents:
- Board-Mounted GPSDO (OCXO)
- Documentation for Installation and Configuration/Setup
Recommended for Use With:
- A USRP X300 and USRP X310 for a high-accuracy clock reference.
- Add a GPSDO Mini GPS Antenna to synchronized the GPSDO to the GPS constellation for 25 ppb frequency accuracy and 50 ns alignment across the globe.
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用于 USRP X300/X310 的板载 GPSDO (OCXO)
简介
USRP X 系列专用 GPSDO(板载式 GPS 驯服恒温晶振)
这是一款用于 USRP X300 或 X310 的 GPS 驯服恒温晶振模块(GPSDO),采用 PCB 板载安装方式。该模块可输出高精度的 10 MHz 参考信号和 1 PPS 时间信号,适用于对同步精度要求严格的系统构建。
借助该 GPSDO,开发者能够实现多设备间的高精度同步,或在全球范围内达到约 ±50 ns 的时间对齐,广泛应用于相控阵系统、MIMO 通信、定位与导航、时间敏感网络等场景。
这是一款 GPS 驯服恒温晶振(GPSDO),兼容 USRP X300 和 X310 设备。它也可用于 USRP B200/B210,但在此类系统中需额外提供外部电源支持。
该 GPSDO 可输出高精度的 10 MHz 频率参考信号和 1 PPS 时间脉冲,帮助开发者构建具备更高频率准确度与全球时间对齐能力的系统,广泛应用于需要严格同步的无线通信、定位、测量和时间敏感型应用中。
模块规格
1 PPS 时间精度
- GPS锁定时:对 UTC 的 RMS 精度(1σ)为 ±50 ns
保持能力(Holdover 稳定性)
- 在 +25°C 条件下,3 小时内偏移小于:±20 μs
1 PPS 输出特性
- 由 OCXO 飞轮生成
- 输出电平:3.3 V CMOS
控制接口
- 串口 RS-232
- 支持 NMEA 和 SCPI-99 命令
- 已集成至 UHD 驱动
GPS 接收能力
- 频率:L1, C/A 1574 MHz
- 接收通道数:50 通道,支持移动应用
- 增强系统支持:WAAS、EGNOS、MSAS
GPS 天线
- 支持 有源天线(兼容 5 V) 或 无源天线
灵敏度
- 捕获(Acquisition):-142 dBm
- 跟踪(Tracking):-168 dBm
首次定位时间(TTFF)
- 冷启动:<45 秒
- 暖启动:1 秒
- 热启动:1 秒
频率稳定性(ADEV)
- Allan 偏差:1×10⁻¹¹ @ 1 秒
预热与稳定时间
- 小于 5 分钟(+25 °C 条件下稳定至 1×10⁻⁸ 精度)
供电要求
- 电压输入:3.3 V / 5 V DC
- 功耗:最大 0.7 W
工作温度范围
- 0°C 至 +60°C
存储温度范围
- -45 °C 至 +85 °C
晶振规格(Oscillator Specifications)
频率输出
- 10 MHz
10 MHz 频率回退(Retrace)
- ±2 × 10⁻⁸(在 +25 °C 环境下断电 1 小时后)
温度稳定性(在未锁定 GPS 情况下)
- ±2.5 × 10⁻⁸
预热时间(Warm-Up Time)
- 小于 1 分钟(+25 °C 条件下)
相位噪声(Phase Noise)@ 10 MHz
偏移频率 相位噪声 1 Hz –75 dBc/Hz 10 Hz –110 dBc/Hz 100 Hz –132 dBc/Hz 1 kHz –142 dBc/Hz 10 kHz < –145 dBc/Hz 选购
美金价格 $2,033.00 USD 人民币价格(含税) ¥19,526.965 RMB