18827131. PAM-4 TRANSMITTER AND TRANSCEIVER USING FFE (Korea University Research and Business Foundation)
PAM-4 TRANSMITTER AND TRANSCEIVER USING FFE
Organization Name
Korea University Research and Business Foundation
Inventor(s)
PAM-4 TRANSMITTER AND TRANSCEIVER USING FFE
This abstract first appeared for US patent application 18827131 titled 'PAM-4 TRANSMITTER AND TRANSCEIVER USING FFE
Original Abstract Submitted
The transmitter includes a driver that is connected to an output node and drives the output node with a pulse amplitude modulation-4 (PAM-4) signal having four levels of a most significant bit (MSB) and a least significant bit (LSB), and an equalizer that is connected to the output node and compensates for attenuation of the PAM-4 signal based on a first operating voltage, wherein the equalizer compensates for the attenuation based on applying a second operating voltage having a level greater than a level of the first operating voltage to the output node when a transition from a first level to a second level among the four levels is a rising transition, and compensates for the attenuation based on forming a path for extracting an equalizing current from the output node when the transition from the first level to the second level is a falling transition.
