US 12,355,594 B2
Common mode noise measurement in multiple data communication interface receivers
Sandor Farkas, Round Rock, TX (US); and Bhyrav Mutnury, Austin, TX (US)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by DELL PRODUCTS L.P., Round Rock, TX (US)
Filed on Jun. 28, 2023, as Appl. No. 18/343,416.
Prior Publication US 2025/0007757 A1, Jan. 2, 2025
Int. Cl. H04L 25/02 (2006.01)
CPC H04L 25/0276 (2013.01) [H04L 25/0292 (2013.01); H04L 25/0298 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated circuit device, comprising:
a multiplexor including a plurality of signal inputs, a selector input, and a signal output; and
a plurality of receivers for high-speed data communication interfaces, the receivers each including:
a differential data signal input including a positive signal input and a negative signal input;
a first termination resistor to terminate the positive signal input to a reference voltage node;
a second termination resistor to terminate the negative signal input to the reference voltage node; and
a noise measurement node to detect common mode noise at the reference voltage node, the noise measurement node coupled to an associated one of the signal inputs.