Systems and methods for die-to-die communication

A method for simultaneously and bidirectionally communicating data between two dies, the method comprising:

• modulating, using a first transceiver disposed on a first die, first data onto a carrier signal having a first frequency;
• transmitting, using the first transceiver, the modulated first data via a bidirectional differential transmission line;
• filtering signals received at the first transceiver via the bidirectional differential transmission line using a first filter, wherein the first filter is configured to pass frequencies within a first passband that includes a second frequency, the first frequency being outside of the first passband;
• modulating, using a second transceiver disposed on a second die, second data onto a carrier signal having the second frequency;
• transmitting, using the second transceiver, the modulated second data via the bidirectional differential transmission line;
• and
• filtering signals received at the second transceiver via the bidirectional differential transmission line using a second filter, wherein the second filter is configured to pass frequencies within a second passband that includes the first frequency, the second frequency being outside of the second passband.

A simultaneous bidirectional communications system, comprising:

• a first transceiver including:
• a transmission section configured to modulate first data onto a carrier signal having a first frequency for transmission via a bidirectional differential transmission line, and
• a reception section configured to receive signals from the bidirectional differential transmission line, the reception section including a filter configured to pass frequencies within a first passband that includes a second frequency, the first frequency being outside of the first passband;
• and
• a second transceiver configured to communicate with the first transceiver via the bidirectional differential transmission line, the second transceiver including:
• a transmission section configured to modulate second data onto a carrier signal having the second frequency for transmission via the bidirectional differential transmission line, and
• a reception section including a filter configured to pass frequencies within a second passband that includes the first frequency, the second frequency being outside of the second passband.