LimeSDR-mini LTE constellation

[andrewback]

You can use a 10MHz reference. See:

Enabling External Clock on LimeSDR mini 1.2?

According to “LimeSDR-Mini v1.2 hardware description”, section 4.6 on clock distribution, to enable external reference clock: “VCTCXO can be disconnected from clock buffer input (remove R59 and solder R62) and external reference clock can be supplied from connector J8 (REF_CLK_IN).” However, there doesn’t appear to be an unsoldered R62. Does anyone else see where an unsoldered R62 is located? The silkscreen label is in the middle, underneath the FPGA and without any nearby pads. Also, have I…

And notes at:

https://wiki.myriadrf.org/LimeSDR-Mini_v1.2_hardware_description#Clock_Distribution

I understand that the phase noise will not be great, due to limited space and cost optimised nature of LimeSDR Mini. If you need higher performance, would suggest LimeSDR-USB plus external GPSDO, or LimeNET Micro, which includes this and can be used as a USB peripheral.