US 12,388,490 B2
Receiver equalization circuitry using variable termination and T-coil
Dean E. Gonzales, Fort Collins, CO (US); Edoardo Prete, Boxborough, MA (US); Milam Paraschou, Santa Clara, CA (US); Mark Chirachanchai, Boxborough, MA (US); and Gerald R. Talbot, Boxborough, MA (US)
Assigned to Advanced Micro Devices, Inc., Santa Clara, CA (US)
Filed by Advanced Micro Devices, Inc., Santa Clara, CA (US)
Filed on Mar. 25, 2022, as Appl. No. 17/705,022.
Prior Publication US 2023/0308132 A1, Sep. 28, 2023
Int. Cl. H04B 3/14 (2006.01); H04B 3/26 (2006.01); H04B 3/46 (2015.01); H01F 17/08 (2006.01)
CPC H04B 3/141 (2013.01) [H04B 3/145 (2013.01); H04B 3/26 (2013.01); H04B 3/46 (2013.01); H01F 17/08 (2013.01)] 20 Claims
OG exemplary drawing
 
15. An apparatus comprising:
a plurality of receivers configured to receive signals; and
a plurality of transmitters configured to send a plurality of signals to the plurality of receivers via a plurality of transmission lines, each comprising a metal trace with a corresponding impedance along the metal trace;
wherein a given receiver of the plurality of receivers is configured to receive a first signal of the plurality of signals from a given transmitter of the plurality of transmitters; and
wherein the given receiver comprises:
an input configured to receive the first signal from the given transmitter via a transmission line of the plurality of transmission lines;
a first inductor coupled to receive the first signal from the input;
a second inductor connected in series with the first inductor, wherein a node between the first inductor and the second inductor comprises a capacitive load of circuitry of the given receiver that processes the first signal and at least one other signal within the given receiver;
a termination resistor connected in series with the second inductor; and
a comparator configured to convey a second signal based on the first signal to circuitry of functional blocks.