u-blox M8 time & frequency reference GNSS chip
u-blox time and frequency products provide multi-GNSS synchronization for cost-sensitive network edge equipment including Femto wireless base-stations. The M8030-KT-FT IC provides a complete GNSS receiver and reference frequency control function. This single-chip RF and baseband IC requires few external components: just a low-cost SQI Flash for program and parameter storage and passive components.
The M8030-KT-FT can control a system reference VCTCXO directly via its in-built PWM DAC, providing both frequency and phase coherence with the best available source of synchronization. Additional remote oscillators may be controlled via a second DAC (DDC) or via the host system. External sources of synchronization are supported through time-pulse and frequency inputs and a message interface. This allows measurements from macro-sniff, Sync-E, or packet timing to be combined with measurements from GNSS.
Hot/Aided starts: 1 s 3 s
Cold start (aided): –157 dBm –148 dBm
(autonomous): –148 dBm –145 dBm
Reacquisition: –160 dBm –157 dBm
OMA SUPL & 3GPP compliant interface