Solid State Circuits 7 - RF Mixers


1. MOSFET Mixer

The diagram to the right shows a single stage MOSFET tuned mixer. Depending on the frequency of operation, the gain will be from 10dB to 20dB - higher gain at lower frequencies.

Decoupling values are typical for operation on the HF bands.

AGC should not be applied to this type of circuit.

Oscillator injection should be 4v peak-peak.