Electrical connectors having differential signal pairs configured to reduce cross-talk on adjacent pairs

An electrical connector comprising:

• a connector housing;
• a first plurality of differential signal pairs and ground contacts positioned along a first centerline;
• a second plurality of differential signal pairs and ground contacts positioned along a second centerline;
• and
• a third plurality of differential signal pairs and ground contacts positioned along a third centerline;
• wherein (i) the second centerline is adjacent to the first centerline, (ii) the third centerline is adjacent to the second centerline, (iii) the connector is devoid of shields between the centerline and the second centerline, (iv) the connector is devoid of shields between the second centerline and the third centerline, (v) one of the differential signal pairs in the second plurality is a victim pair, (vi) differential signals having rise times of 100 picoseconds in each of the differential signal pairs generate no more than 6% worst-case, multi-active cross-talk on the victim pair, (vii) the victim pair has a first differential impedance when the first, second, and third pluralities of differential signal pairs are contained within the connector housing, and (viii) the victim pair has the first differential impedance when the first and third pluralities of differential signal pairs are removed from the connector housing.

An electrical connector comprising:

• a connector housing;
• a first leadframe assembly contained in the connector housing, the first leadframe assembly comprising a first dielectric leadframe housing and a first plurality of differential signal pairs and ground contacts extending through the first leadframe housing;
• a second leadframe assembly contained in the connector housing, the second leadframe assembly comprising a second dielectric leadframe housing and a second plurality of differential signal pairs and ground contacts extending through the second leadframe housing;
• a third leadframe assembly contained in the connector housing, the third leadframe assembly comprising a third dielectric leadframe housing and a third plurality of differential signal pairs and ground contacts extending through the third leadframe housing;
• wherein (i) the second leadframe assembly is adjacent to the first leadframe assembly, (ii) the third leadframe assembly is adjacent to the second leadframe assembly, (iii) the connector is devoid of shields between the first leadframe assembly and the second leadframe assembly, (iv) the connector is devoid of shields between the second leadframe assembly and the third leadframe assembly, (v) one of the differential signal pairs in the second plurality is a victim pair, (vi) differential signals having rise times of 100 picoseconds in each of the differential signal pairs generate no more than 6% worst-case, multi-active cross-talk on the victim pair, (vii) the victim pair has a first differential impedance when the first, second, and third leadframe assembly are contained within the connector housing, and (viii) the victim pair has the first differential impedance when the first and third leadframe assemblies are removed from the connector housing.