Communications jack having a flexible substrate with a cantilevered finger with a crosstalk compensation circuit
Communications jacks include at least first through third jackwire contacts and a flexible substrate that has a first finger and a second finger. The first jackwire contact and the third jackwire contact are each mounted on the first finger and the second jackwire contact is mounted on the second finger.
1. A communications jack, comprising:
a first jackwire contact;
a second jackwire contact; and
a flexible substrate that has a first cantilevered finger, the flexible substrate including a first conductive path that is electrically connected to the first jackwire contact and a second conductive path that is electrically connected to the second jackwire contact, and the first cantilevered finger includes a crosstalk compensation circuit.
2. The communications jack of claim 1 , wherein the flexible substrate comprises a flexible printed circuit board.
3. The communications jack of claim 1 , wherein the first jackwire contact and the second jackwire contact are substantially aligned in a first row, the communications jack further comprising a third jackwire contact and a fourth jackwire contact that are substantially aligned in a second row that is offset from the first row.
4. The communications jack of claim 1 , wherein the communications jack comprises an RJ-45 jack.
5. The communications jack of claim 1 ,
wherein a first end of the first jackwire contact and a first end of the second jackwire contact are mounted on the first cantilevered finger, and a capacitive crosstalk compensation circuit is provided on the first cantilevered finger.
6. The communications jack of claim 5 , the flexible substrate further comprising a second cantilevered finger, wherein a second end of the first jackwire contact is mounted on the second cantilevered finger and a second end of the second jackwire contact is mounted on the second cantilevered finger.
7. The communications jack of claim 6 , wherein the second cantilevered finger further includes an inductive crosstalk compensation circuit formed by running a portion of a first conductive path that connects to the first jackwire contact immediately adjacent to a portion of a second conductive path that connects to the second jackwire contact.
8. The communications jack of claim 6 , further comprising a third jackwire contact that is positioned between the first jackwire contact and the second jackwire contact.
9. The communications jack of claim 8 , wherein a first end of the third jackwire contact is mounted on a third cantilevered finger of the flexible substrate and a second end of the third jackwire contact is mounted on a fourth cantilevered finger of the flexible substrate.
10. The communications jack of claim 1 , wherein the crosstalk compensation circuit comprises a portion of the first conductive path that is on the first cantilevered finger that runs immediately adjacent to a portion of the second conductive path that is on the first cantilevered finger.
11. The communications jack of claim 10 , wherein a first end of the first jackwire contact is received within an aperture in a second cantilevered finger and a second end of the first jackwire contact is received within a first aperture in the first cantilevered finger.
12. The communications jack of claim 11 , wherein a first end of the second jackwire contact is received within an aperture in a third cantilevered finger and a second end of the second jackwire contact is received within a second aperture in the first cantilevered finger.
13. The communications jack of claim 12 , wherein the first cantilevered finger is cantilevered forwardly and the second and third cantilevered fingers are cantilevered rearwardly.