LTE-Lite Frequency and Timing SMT

The breakthrough LTE-Lite Frequency and Timing SMT module integrates a GPS receiver, filtered power supplies, and a software-disciplined crystal oscillator into a 0.7 x 1.18 inch GPSDO SMT module. The LTE-Lite uses true analog crystal disciplining for superior phase noise and jitter performance. The LTE-Lite time and frequency reference provides GNSS time and frequency synchronization for cost-sensitive network equipment, in particular LTE 4G applications and Small Cell products from Micro Cells to Femto Cells. Typically, the unit achieves a frequency accuracy of 1 ppb or better when locked to GPS, and a frequency stability of 100 ppb over temperature when operating in free-running mode or not locked to GPS. For optimal performance, the unit should be shielded from any airflow.

The LTE-Lite provides all the standard NMEA output messages at rates of 1 Hz or 5 Hz. Providing true 5 Hz GPS NMEA messaging allows for very precise positioning in UAV and other mobile applications. The LTE-Lite also provides a proprietary NMEA message with oscillator lock-status and health information, with the same information being mirrored on the TTL status outputs for applications without serial interface.

The LTE-Lite SMT Module is available in an easy-to-use evaluation kit form that includes all accessories to operate the unit.

Highlights

• SMT, 0.7 x 1.2 x 0.1 inches
• Telecom Frequencies: 10, 15.36, 20 MHz
• Internal 65 channel GPS and TCXO
• 3.3V operation, very low power consumption, and TTL strap configuration
• Two independent frequency outputs (one synthesized)
• Support for disciplining external oscillators including CSAC
• Full NMEA output with 1 Hz and 5 Hz PVT update rates, and oscillator lock status message