: If the simulation crashes or runs extremely slowly, open the system simulation options in Proteus and slightly increase the GMIN or change the solver to "Alternate" to handle the high-frequency transitions of the analog multiplier. Proactively Proceeding

If you cannot get the MC1496 working, consider these substitutes available in default Proteus libraries:

Because the MC1496 is not always included in the default Proteus library, you can download it from reliable third-party EDA libraries.

Once your library is installed, test with this mini-project:

Official Proteus libraries typically do not include the MC1496. You can source it from these platforms:

The widely used in communication systems for AM modulation, SSB detection, and frequency doubling. When designing electronic circuits using Labcenter Electronics Proteus, simulating this specific IC requires an external component library, as it is often missing or lacks a simulation model in the default installation. Why You Need the MC1496 Proteus Library

Option C — Build your own Proteus part (symbol + footprint + behavioral model)