Implementation methodology for Self-Timed modulators with dual-rail structures based on FPGA

The paper presents the implementation methodology for Self-Timed modulators and their synchronous equivalent. An OQPSK (Offset Quadrature Phase Shift Keying) modulator is used for the ZigBee standard, and is modified with the addition of asynchronous control blocks with dual-rail structures for removing the clock signal. A comparison of synchronous and asynchronous modulators was performed and the implementation was carried out in two different FPGA technologies, where increased performance and reduced on power consumption was observed.