IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0739013
(2007-04-23)
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등록번호 |
US-7309239
(2007-12-18)
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발명자
/ 주소 |
- Shuey,Joseph B.
- Smith,Stephen B.
- Winings,Clifford L.
- Raistrick,Alan
|
출원인 / 주소 |
- FCI Americas Technology, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
54 인용 특허 :
117 |
초록
▼
A mezzanine style electrical connector is disclosed. The connector includes first and second arrays of electrical contacts extending through a connector housing. Each contact array may include single ended signal conductors or differential signal pairs or a combination of both. The contact arrays ar
A mezzanine style electrical connector is disclosed. The connector includes first and second arrays of electrical contacts extending through a connector housing. Each contact array may include single ended signal conductors or differential signal pairs or a combination of both. The contact arrays are disposed adjacent to one another such that cross-talk between adjacent signal contacts is limited, even in the absence of any electrical shielding or ground contacts between the contact arrays.
대표청구항
▼
What is claimed: 1. An electrical connector, comprising: a mezzanine-style connector housing that defines a connector mating plane and a connector mounting plane that is parallel to the connector mating plane; a first column of electrical contacts contained in the connector housing, the first colum
What is claimed: 1. An electrical connector, comprising: a mezzanine-style connector housing that defines a connector mating plane and a connector mounting plane that is parallel to the connector mating plane; a first column of electrical contacts contained in the connector housing, the first column comprising a first arrangement of differential signal pairs separated from one another by first ground contacts; a second column of electrical contacts contained in the connector housing, the second column comprising a second arrangement of differential signal pairs separated from one another by second ground contacts, wherein one differential signal pair in the second arrangement of differential signal pairs is a victim differential signal pair; and a third column of electrical contacts contained in the connector housing, the third column comprising a third arrangement of differential signal pairs separated from one another by third ground contacts, wherein (i) the second column is adjacent to the first column, and the third column is adjacent to the second column; (ii) the connector is devoid of electrical shields between the first column and the second column, and between the second column and the third column; (iii) the contacts in the first column are spaced apart from the contacts in the second column by a column-spacing distance of about 1.8-2.0 millimeters, and the contacts in the second column are spaced apart from the contacts in the third column by the column-spacing distance; (iv) each of the differential signal pairs defines a gap distance between the electrical contacts that form the pair; and (v) the gap distance relative to the column-spacing distance is such that differential signals with rise times of 200 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than 6% worst-case, multi-active cross talk on the victim differential signal pair. 2. The electrical connector as claimed in claim 1, wherein each differential signal pair comprises two electrical signal contacts that are tightly electrically coupled to one another. 3. The electrical connector as claimed in claim 1, wherein a differential signal pair in the third column is offset from the victim differential signal pair by a row pitch. 4. The electrical connector as claimed in claim 1, wherein a differential signal pair in the third column is offset from the victim differential signal pair by an offset distance that is less than a row pitch. 5. The electrical connector as claimed in claim 1, wherein a differential signal pair in the third column is offset from the victim differential signal pair by more than a row pitch. 6. The electrical connector as claimed in claim 1, wherein the impedance of the first differential signal pair is between about 90 and 110 Ohms. 7. The electrical connector as claimed in claim 1, wherein the 200 picosecond rise time represents a data transfer rate greater than 1.25 Gigabits/sec and less than 2.5 Gigabits/sec. 8. The electrical connector as claimed in claim 1, wherein electrical contacts that form a differential signal pair in the first column extend from a mating face of the connector and one of the first ground contacts extend farther from the mating face than the electrical contacts. 9. The electrical connector as claimed in claim 1, wherein electrical contacts that form a differential pair in the first column each terminate at a respective end thereof with a corresponding fusible mounting element. 10. The electrical connector as claimed in claim 1, wherein the worst-case, multi-active cross talk on the victim differential signal pair is 4% or less. 11. The electrical connector as claimed in claim 1, wherein the worst-case, multi-active cross talk on the victim differential signal pair is 3% or less. 12. The electrical connector as claimed in claim 1, wherein the electrical connector has an insertion loss of less than about 0.7 dB at 5 GHz. 13. The electrical connector as claimed in claim 1, wherein the differential signal pairs are broadside coupled. 14. The electrical connector as claimed in claim 1, wherein the gap distance relative to the column-spacing distance is such that differential signals with rise times of 150 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than 6% worst-case cross talk on the victim differential signal pair. 15. The electrical connector as claimed in claim 14, wherein the 150 picosecond rise time represents a data transfer rate of about 2.5 Gigabits/sec. 16. The electrical connector as claimed in claim 1, wherein the gap distance relative to the column-spacing distance is such that differential signals with rise times of 100 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than 6% worst-case cross talk on the victim differential signal pair. 17. The electrical connector as claimed in claim 16, wherein the 100 picosecond rise time represents a data transfer rate of about 3.2 Gigabits/sec. 18. The electrical connector as claimed in claim 1, wherein the gap distance relative to the column-spacing distance is such that differential signals with rise times of 50 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than 6% worst-case cross talk on the victim differential signal pair. 19. The electrical connector as claimed in claim 18, wherein the 50 picosecond rise time represents a data transfer rate greater than 4.8 Gigabits/sec and less than 10 Gigabits/sec. 20. The electrical connector as claimed in claim 1, wherein the gap distance relative to the column-spacing distance is such that differential signals with rise times of 40 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than 6% worst-case cross talk on the victim differential signal pair. 21. The electrical connector as claimed in claim 20, wherein the 40 picosecond rise time represents a data transfer rate of about 10 Gigabits/sec. 22. An electrical connector comprising: a mezzanine-style connector housing that defines a connector mating plane and a connector mounting plane that is parallel to the connector mating plane; a first column of electrical contacts contained in the connector housing, the first column comprising a first differential signal pair of electrical contacts, a first ground contact adjacent to the first differential signal pair, a second differential signal pair of electrical contacts adjacent to the first ground contact, a second ground contact adjacent to the second differential signal pair, and a third differential signal pair of electrical contacts adjacent to the second ground contact; a second column of electrical contacts contained in the connector housing, the second column comprising a fourth differential signal pair of electrical contacts, a third ground contact adjacent to the fourth differential signal pair, a fifth differential signal pair of electrical contacts adjacent to the third ground contact, a fourth ground contact adjacent to the fifth differential signal pair, and a sixth differential signal pair of electrical contacts adjacent to the fourth ground contact; and a third column of electrical contacts contained in the connector housing, the third column comprising a seventh differential signal pair of electrical contacts, a fifth ground contact adjacent to the seventh differential signal pair, an eighth differential signal pair of electrical contacts adjacent to the fifth ground contact, a sixth ground contact adjacent to the eighth differential signal pair, and a ninth differential signal pair of electrical contacts adjacent to the sixth ground contact, wherein (i) the second column of electrical contacts is adjacent to the first column of electrical contacts and the third column of electrical contacts; (ii) the connector is devoid of electrical shields between the first, second, and third columns; (iii) the electrical contacts in the first column are spaced apart from the electrical contacts in the second column by a column-spacing distance, and the contacts in the second column are spaced apart from the contacts in the third column by the column-spacing distance; (iv) the electrical contacts that comprise the first differential signal pair are spaced apart by a gap distance that is less than the column-spacing distance; and (v) differential signals with rise times of 40 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the fifth differential signal pair produce no more than 6% worst-case, multi-active cross talk on the fifth differential signal pair. 23. The electrical connector as claimed in claim 22, wherein electrical signal contacts in the first differential signal pair are tightly electrically coupled to each other. 24. The electrical connector as claimed in claim 22, wherein the fourth differential signal pair is offset from the first differential signal pair by a row pitch. 25. The electrical connector as claimed in claim 22, wherein the fourth differential signal pair is offset from the first differential signal pair by an offset distance that is less than a row pitch. 26. The electrical connector as claimed in claim 22, wherein the fourth differential signal pair is offset from the first differential signal pair by more than a row pitch. 27. The electrical connector as claimed in claim 22, wherein the impedance of the first differential signal pair is between about 90 and 110 Ohms. 28. The electrical connector as claimed in claim 22, wherein the worst-case, multi-active, cross-talk on the fifth differential signal pair is 3% or less. 29. The electrical connector as claimed in claim 22, wherein the 40 picosecond rise time represents a data transfer rate of about 10 Gigabits/sec. 30. The electrical connector as claimed in claim 22, wherein electrical contacts that form a differential signal pair in the first column of the first connector extend from a mating face of the first electrical connector and one of the first ground contacts extends farther from the mating face than the electrical contacts. 31. The electrical connector as claimed in claim 22, wherein electrical contacts that form the first differential signal pair each terminate at a respective end thereof with a corresponding fusible mounting element. 32. The electrical connector as claimed in claim 22, wherein worst-case, multi-active cross talk on the fifth differential signal pair is 4% or less. 33. The electrical connector as claimed in claim 22, wherein worst-case, multi-active cross talk on the fifth differential signal pair is 3% or less. 34. The electrical connector as claimed in claim 22, wherein the electrical connector has an insertion loss of less than about 0.7 dB at 5 GHz. 35. The electrical connector as claimed in claim 22, wherein the differential signal pairs are broadside coupled. 36. The electrical connector as claimed in claim 22, wherein differential signals with rise times of 200 picoseconds in each of the six closest differential signal pairs produce no more than 6% worst-case, multi-active cross talk on the fifth differential signal pair. 37. The electrical connector as claimed in claim 36, wherein the 200 picosecond rise time represents a data transfer rate greater than 1.25 Gigabits/sec and less than 2.5 Gigabits/sec. 38. The electrical connector as claimed in claim 22, wherein differential signals with rise times of 150 picoseconds in each of the six closest differential signal pairs produce no more than 6% worst-case, multi-active cross talk on the fifth differential signal pair. 39. The electrical connector as claimed in claim 38, wherein the 150 picosecond rise time represents a data transfer rate of about 2.5 Gigabits/sec. 40. The electrical connector as claimed in claim 22, wherein differential signals with rise times of 100 picoseconds in each of the six closest differential signal pairs produce no more than 6% worst-case, multi-active cross talk on the fifth differential signal pair. 41. The electrical connector as claimed in claim 40, wherein the 100 picosecond rise time represents a data transfer rate of about 3.2 Gigabits/sec. 42. The electrical connector as claimed in claim 22, wherein differential signals with rise times of 50 picoseconds in each of the six closest differential signal pairs produce no more than 6% worst-case, multi-active cross talk on the fifth differential signal pair. 43. The electrical connector as claimed in claim 42, wherein the 50 picosecond rise time represents a data transfer rate greater than 4.8 Gigabits/sec and less than 10 Gigabits/sec. 44. An electrical connector comprising: a mezzanine-style connector housing that defines a connector mating plane and a connector mounting plane that is parallel to the connector mating plane; a first column of electrical contacts contained in the connector housing, the first column comprising a first arrangement of differential signal pairs each separated from one another by first ground contacts; a second column of electrical contacts contained in the connector housing, the second column comprising a second arrangement of differential signal pairs each separated from one another by second ground contacts, wherein one differential signal pair in the second arrangement of differential signal pairs is a victim pair; and a third column of electrical contacts contained in the connector housing, the third column comprising a third arrangement of differential signal pairs each separated from one another by third ground contacts, wherein (i) the second column is adjacent to the first column, and the third column is adjacent to the second column; (ii) the connector is devoid of electrical shields between the first column and the second column, and between the second column and the third column; (iii) the first column, the second column, and the third column are evenly spaced apart from one another by an equal column-spacing distance of about 1.8 to 2 millimeters; (iv) each of the differential signal pairs defines a gap distance between electrical contacts that form each differential signal pair; and (v) the gap distance relative to the column-spacing distance is such that differential signals with rise times of 40 picoseconds in the six differential signal pairs in the first, second, and third columns that are closest to the victim pair produce no more than an acceptable level of worst-case, multi-active cross talk on the victim pair. 45. The electrical connector as claimed in claim 44, wherein the gap distance is approximately 0.3 to 0.4 millimeters. 46. The electrical connector as claimed in claim 44, wherein the gap distance is between approximately one-tenth of the column pitch and one-fifth of the column pitch. 47. The electrical connector as claimed in claim 44, wherein the gap distance is between approximately one-tenth of the column pitch and one-eighth of the column pitch. 48. The electrical connector as claimed in claim 44, wherein the gap distance is approximately one-fifth of the column pitch. 49. The electrical connector as claimed in claim 44, wherein the column pitch is approximately two millimeters and the gap distance is between approximately 0.3 millimeters and 0.4 millimeters. 50. The electrical connector as claimed in claim 44, wherein electrical contacts that form the first differential signal pair each terminate at a respective end thereof with a corresponding fusible mounting element. 51. The electrical connector as claimed in claim 44, wherein the impedance of the first differential signal pair is between about 90 and 110 Ohms. 52. The electrical connector as claimed in claim 44, wherein the first linear array is staggered relative to the second linear array. 53. The electrical connector as claimed in claim 44, wherein the differential signal pairs are broadside coupled.
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