SKG17MT是一個單頻多模(mo)GNSS授(shou)時模(mo)塊,支(zhi)持包括(kuo)GPS、GLONASS和(he)北斗在內的多個GNSS系統。1PPS時間脈沖(chong)經(jing)過優化,可在依賴于該精(jing)(jing)度的同步和(he)操作效率的應用中(zhong)(zhong)提供(gong)高精(jing)(jing)度的衛星授(shou)時,如小型(xing)蜂窩網(wang)絡、數據(ju)中(zhong)(zhong)心、通信系統和(he)金(jin)融(rong)網(wang)絡。
1. GPS+BEIDOU/GPS+GLONASS
2. 支持(chi)手動(dong)輸入位置靜態定點授(shou)時(shi)
3. 支持觀測(ce)位置靜態定(ding)點授時(shi)
4. 支(zhi)持(chi)動(dong)態(tai)定位(wei)授時(shi),此時(shi)授時(shi)精度不能保證
電力高精度授時
個人授時設備
基站高精度授時
其他高精度授時
Item | Test condition | GPS + BEIDOU | GPS + GLONASS | |
Time pulse accuracy | 1PPS 1-sigma | Position hold, 24-hours, >8+8SVs @-130dBm, C/N0 > 40dB-Hz | < 10 s | < 10ns |
Time To First Fix(TTFF) | cold start | -130dBm, Static, >8+8SVs | 30 s | 30 s |
Hot start | -130dBm, Static, >8+8SVs | 1 s | 1 s | |
Sensitivity | Tracking | Cannot lose fixed, Static, >8+8SVs | -165dBm | -165dBm |
Current Consumption (VCC=3.0V) | Acquisition | No RF signal input | 35mA | 34mA |
Tracking | -130dBm, Static, >8+8SVs | 38mA | 39mA |
支持GPS+GLONASS、GPS+北斗
1PPS設置:脈寬(kuan)調(diao)整(zheng)(默認值:100ms)延遲調(diao)整(zheng)(范(fan)圍+/-100ms)
天線(xian)監(jian)控器:天線(xian)短(duan)路/開路/連接指示(shi)有源(yuan)天線(xian)電(dian)壓源(yuan)
電源(yuan):VCC:2.8~4.2VV_BCKP:2.0~4.2V
串(chuan)行(xing)接口(kou):UART、I2C/SPI
時(shi)間脈沖(1PPS)精度(du):1-sigma:<10ns
尺寸:17.0*22.4*2.4(mm)
保持時間(jian):±3us,持續5分鐘
計時模式:測量在(zai)、位置保持