FPGA implementation of digital signal processing - mixer (Mixer)

1. Design ideas

   Implement a simple mixer circuit in FPGA to multiply two 625Khz sine wave signals to output. The 625Khz local oscillator signal is generated by the NCO inside the FPGA, and the 625Khz sine wave signal is generated by reading the external excitation file (txt). The external excitation file is generated by the matlab simulation program.

2. Experimental effect

3. matlab simulation