* For most applications and new designs, it is recommended to use the SC1894A-00C13 with firmware 4.1.03.08. * SC1894A-00B00 and SC1894A-00B13 are both the same chip with firmware 4.1.05.01 but are not recommended for new designs. * M13 is for a microwave backhaul that requires support for Adaptive Coding and Modulation (ACM) and Automatic Transmit Power Control (ATPC) up to 100dB/s * If the customer does not need ACM nor ATPC, then it is recommended to use C13. * TD-LTE is listed only in C13 applications, but not M13 because M13 does not support TDD applications. * If not sure, first evaluate the SC1894A-00C13 .