TIDUEP0 May 2020
The different sub-systems such as transmit section, receive section, FPGA & data section in the design uses different power rails. Each with its own constraints such as analog supply, digital supply, low noise etc. The primary point of load is generated by using a switching buck converter followed by a LDO (for noise sensitive rails). Figure 11 shows the block level representation of the various low voltage rails and the architecture.