Multimode Digital Modulator Design

This paper presents the design and implementation of a multimode digital modulator capable of performing Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), or Quadrature Phase Shift Keying (QPSK) modulation, based on the select input values.A major highlight of this work is its low power consumption and simplified circuitry, achieved without sacrificing throughput.Prototypes using the proposed architecture have been developed, and simulation results confirm their correct operation.Furthermore, synthesis and power analysis reports demonstrate that the prototypes achieve high throughput with very low power consumption.