FIRST AND SECOND DIFFERENTIAL INTERCONNECTS HAVING INTERLEAVED STUB TRACES

摘要

This disclosure relates generally to an electronic assembly and method having a first electrical connection point and a second electrical connection point and a differential interconnect coupling the first electrical connection point to the second electrical connection point, the differential interconnect including first and second transmission traces including a interior edges and a exterior edges opposite the interior edges, the second interior edge facing the first interior edge, and stub traces, each stub trace coupled to one of the first and second transmission traces and projecting from one of the first interior edge, the first exterior edge, the second interior edge, and the second exterior edge. A substantially equal number of stub traces project from the first exterior edge and the second exterior edge. At least twice as many stub traces project from the first and second exterior edges as project from the first and second interior edges.

主权项

1. An electronic assembly, comprising:
a first electrical connection point and a second electrical connection point; and a differential interconnect coupling the first electrical connection point to the second electrical connection point, the differential interconnect including: a first transmission trace including a first interior edge and a first exterior edge opposite the first interior edge; a second transmission trace substantially parallel with the first transmission trace and including a second interior edge and a second exterior edge opposite the second interior edge, the second interior edge facing the first interior edge; and stub traces, each individual stub trace coupled to one of the first transmission trace and the second transmission trace and projecting from one of the first interior edge, the first exterior edge, the second interior edge, and the second exterior edge, wherein the stub traces are arranged to provide substantially offsetting capacitive coupling between the first transmission trace and the second transmission trace, wherein a substantially equal number of stub traces project from the first exterior edge and the second exterior edge, and wherein at least twice as many stub traces project from the first and second exterior edges as project from the first and second interior edges.