Patent ID: 11863356
Assignee: QUALCOMM INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method for equalizing a signal received from a communication channel, comprising:
providing the signal to a first stage of a first equalizer circuit, the first stage of the first equalizer circuit having a source degeneration circuit that includes a first source degeneration resistor coupled in parallel with a first source degeneration capacitor;
coupling an output of the first stage of the first equalizer circuit to a first trans-impedance amplifier (TIA) in the first equalizer circuit, wherein the first TIA includes a first variable feedback resistor that is coupled between a first input of the first TIA and a first output of the first TIA and a second variable feedback resistor that is coupled between a second input of the first TIA and a second output of the first TIA; and
configuring resistance values of the first variable feedback resistor and the second variable feedback resistor to select a gain to be applied to the output of the first stage of the first equalizer circuit.