描述
LC-XO-PLUS GPSDO 10MHz参考套件是一个完整的解决方案，可在世界任何地方提供极其准确的10MHz、1PPS和位置-速度-时间信息。它包括一个高性能GPS接收机，可以采集和跟踪多达50个GPS信号，低至先进的-160dBm，一个低噪声5V CMOS 10MHz和3.3V CMOS 1PPS输出，USB控制接口，精密电压参考和DAC。当锁定到GPS时，它生成的低噪声10MHz信号通常具有优于1E-010的精度和准确度（0.1ppb）、优于250fs的抖动（20Hz到2MHz）和通常具有优于+/-25ns稳定性的1PPS信号。
LC-XO-PLUS是一个易于使用的小型封闭式盒子，通过插入PC USB端口供电和已提供的GPS天线工作。提供TTL电平状态输出，并且可以通过可选的5V电源进行操作。套件配有一根USB电缆和配套的电源、两根MMCX到BNC适配电缆、一根10米长的GPS天线、Z38xx控制、绘图和命令Windows应用程序，以及一份快速入门指南。
特点
- 完整的即用套件
- 10MHz和1PPS输出
- 支持NTP
- 体积小巧，功耗低
技术参数
| Module Specification: | ||||
| 1 PPS Accuracy | ±50ns to UTC RMS (1-Sigma) GPS Locked | |||
| Holdover Stability | <±50us over 3 Hour Period @+25°C (No Motion) | |||
| 1 PPS Output | 3.3VDC CMOS | |||
| Serial Control | USB serial port with SCPI-99 commands, GPS NMEA Output | |||
| GPS Frequency | L1, C/A 1574MHz | |||
| GPS Antenna | Active or Passive, 5V supplied by unit | |||
| GPS Receiver | 50 Channels, Mobile, SBAS WAAS, EGNOS, MSAS capable | |||
| Sensitivity | Acquisition –142 dBm, Tracking -158 dBm | |||
| GPS TTFF | Cold Start – <45 sec, Warm Start – 1 sec, Hot Start – 1 sec | |||
| ADEV | 10Ks <5E-012 (GPS Locked, 25°C, no motion) | |||
| TTL Alarm Output | GPS LOCK and Event indicator | |||
| Warm Up Time / Stabilization Time | <5 min at +25°C to 1E-08 Accuracy | |||
| Supply Voltage (Vdd) | 5V via USB connector, or 4V to 5.25V on optional header pins | |||
| Power Consumption | <0.5W | |||
| Operating Temperature | -10°C to +65°C | |||
| Storage Temperature | -45°C to +85°C | |||
| Additional Features | Firmware field-upgradable, status LED, compatible to GPSCon, SNTP, GPSD, and Z38xx software applications, NMEA output | |||
| Oscillator Specification: | ||||
| Frequency Output | 10MHz CMOS 5Vpp | |||
| 10MHz Retrace | ±2E-08 After 1 Hour @ +25°C | |||
| Frequency Stability Over Temperature (without GPS lock) | ±75 parts per billion from 0°C to +60°C | |||
| Output Amplitude | 5Vpp CMOS | |||
| Warm Up Time | < 1 min @ +25°C | |||
| Phase Noise | Offset | Phase Noise | ||
| 1Hz | -65dBc/Hz | |||
| 10Hz | -102dBc/Hz | |||
| 100Hz | -132dBc/Hz | |||
| 1kHz | -148dBc/Hz | |||
| 10kHz | -152dBc/Hz | |||
| 100KHz | <-155dBc/Hz | |||
| Connections: | Supplied Accessories: | |||
| 1PPS Output, 10MHz Output, power, USB, TTL alarm status, antenna input. MMCX, Mini-USB, and Screw-In header block | GPS antenna, two MMCX cables, USB power supply, USB cable | |||
