Using HMC520A as BPSK.

Hi,

We haven't used the HMC520A as an IQ modulator though it can be theoretically be used as one (ADI has several parts that are better optimized for IQ modulation-https://www.analog.com/en/products/rf-microwave/iq-modulators-demodulators/iq-modulators.html). The IF ports are quadrature so a quadrature signal into the IQ mixer is needed to provide sideband rejection. For the BPSK application I think it would be ok to only use one of the IF ports as no sideband rejection is required. However, the conversion loss will now increase. For QPSK, the application would require a quadrature signal so I think it must use the IF1 and IF2 ports.

Thanks,

Thank you @mthahira. I will check the performance in my circuit.

Thank you @mthahira. I will check the performance in my circuit.