4 Summary

The AFE7950 (or AFE7950-SP) RF sampling transceiver and the LMX2820 (or LMX2615-SP) synthesizer is part of the super-het K-band transceiver shown in Figure 4-1. The solution if fleshed out with appropriate gain blocks, filters, low-noise amplifiers, and power amplifiers. Though the solution is a bit more discrete compared to the direct conversion approach, it offers advantages for multi-channels systems. For systems with two or more channels the integrated AFE7950 offers a smaller PCB real estate footprint, power consumption savings, and a reduction in interface connections to an FPGA or processor in addition to the system performance advantage of eliminating the co-located image.