Galvanic isolator

A system comprising:

• an input circuit configured to operate at a first voltage level and to provide a first modulated signal;
• an output circuit configured to operate at a second voltage level different from the first voltage level;
• and
• a system on a package (SOP) including:
• a resonant coupler;
• a dielectric;
• an input stage isolated from the resonant coupler by the dielectric, the input stage coupled to the input circuit and configured to:
• receive the first modulated signal from the input circuit;
• and, responsive to the first modulated signal, provide a wireless signal to the resonant coupler;
• and
• an output stage isolated from the resonant coupler by the dielectric, the output stage coupled to the output circuit and configured to:
• receive a filtered wireless signal from the resonant coupler;
• and, responsive to the filtered wireless signal, provide a second modulated signal to the output circuit.

A system comprising:

• a first die;
• a second die;
• a third die;
• an input circuit on the first die, the input circuit configured to provide a first modulated signal by modulating an input signal onto a carrier frequency:
• an output circuit on the second die, the output circuit configured to demodulate a second modulated signal;
• and
• a galvanic isolator on the third die, the galvanic isolator having an input and an output, the input isolated from the output, the input coupled to the input circuit, the output coupled to the output circuit, and the galvanic isolator configured to:
• receive the first modulated signal at the input;
• responsive to the first modulated signal, provide a wireless signal;
• responsive to the wireless signal, provide a filtered wireless signal;
• and, responsive to the filtered wireless signal, provide the second modulated signal at the output.

A system, comprising:

• a galvanic isolator having an input and an output, the input isolated from the output, and the galvanic isolator including:
• an input stage configured to:
• receive a first modulated signal at the input;
• and, responsive to the first modulated signal, provide a wireless signal;
• a coupler configured to receive the wireless signal and provide a filtered wireless signal;
• a dielectric;
• an output stage isolated from the input stage by the dielectric, the output stage configured to:
• receive the filtered wireless signal;
• and, responsive to the filtered wireless signal, provide a second modulated signal at the output.