Methods, apparatus, and systems to facilitate multi-channel isolation
AssigneeTexas Instruments Incorporated
InventorsMatthew David Romig, Mayank Garg
Life of this patent
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Abstract
Methods, systems, and apparatus to facilitate multi-channel isolation is disclosed. An example apparatus includes a multiplexer including a first input terminal, a second input terminal, and an output terminal; a modulator including an input terminal and an output terminal, the input terminal of the modulator coupled to the output terminal of the multiplexer; an isolation capacitor including a first terminal and a second terminal, the first terminal of the isolation capacitor coupled to the output terminal of the modulator; a first receiver die coupled to the second terminal of the isolation capacitor; and a second receiver die coupled to the second terminal of the isolation capacitor.
Claims18
A circuit comprising:
- a controller having a controller input and a controller output;
- a multiplexer having a first multiplexer input, a second multiplexer input, a multiplexer select input, and a multiplexer output, wherein the multiplexer select input is coupled to the controller output;
- a modulator having a modulator input and a modulator output, wherein the modulator input is coupled to the multiplexer output;
- and
- a capacitor having a first and second capacitor terminals, wherein the first capacitor terminal is coupled to the modulator output.
A circuit comprising:
- a first demodulator having a first demodulator input and a first demodulator output;
- a second demodulator having a second demodulator input and a second demodulator output;
- a demultiplexer having a first demultiplexer input, a second demultiplexer input, and a demultiplexer output, the first demultiplexer input coupled to the first demodulator output;
- and
- a controller having a first controller input, a second controller input, and a controller output, the first controller input coupled to the first demodulator output, the second controller input coupled to the second demodulator output, and the controller output coupled to the second demultiplexer input.
An apparatus comprising:
- a multiplexer on a first die;
- a controller on the first die, wherein the controller is coupled to the multiplexer;
- a demultiplexer on a second die;
- a first capacitor coupled between the multiplexer and the demultiplexer;
- and
- a second capacitor coupled between the first die and the second die.
Dependencies are inferred from the claim text.