CN204990275U - Test fixture supporting USB2.0 Tx signal and USB3.0 Tx/Rx signal - Google Patents
Test fixture supporting USB2.0 Tx signal and USB3.0 Tx/Rx signal Download PDFInfo
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- CN204990275U CN204990275U CN201520552763.7U CN201520552763U CN204990275U CN 204990275 U CN204990275 U CN 204990275U CN 201520552763 U CN201520552763 U CN 201520552763U CN 204990275 U CN204990275 U CN 204990275U
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- 238000012360 testing method Methods 0.000 title abstract description 18
- 238000005259 measurement Methods 0.000 claims description 18
- 238000007639 printing Methods 0.000 claims description 10
- 230000011664 signaling Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a support USB 2.0? Tx signal and USB 3.0? The structure of the test fixture for Tx/Rx signal includes a USB 3.0? Type a standard male, and USB to be tested? Port matching connection; a USB 3.0? Type a female, USB 3.0? The Rx signal end of the A-type standard male head is connected in a matching way; the two pairs of SMA female heads are respectively connected with Tx signal ends of USB2.0 and USB3.0 in a matching way; and a printed circuit board PCB on which is reserved USB 3.0? Type a standard male, USB 3.0? Female head mounting hole of A type and SMA and signal point, USB 3.0? Type a standard male, USB 3.0? And the pins of the A-type female head and the SMA female head are correspondingly connected with signal points on the PCB through three pairs of differential signal lines. The utility model discloses can support USB2.0 simultaneously on a test fixture? Tx signal test, USB 3.0? Tx signal test and USB 3.0? Rx signal test is carried out, the signal integrity test requirement of USB3.0 is realized, and the USB fixture cost can be effectively reduced; is there a USB 3.0? Type a standard male, USB 3.0? The A-type female head, the SMA female head and the differential signal line are arranged to be of a tree structure, so that the jig is small in size and convenient for Layout wiring.
Description
Technical field
The utility model relates to a kind of USB3.0 high speed signal integrity test smelting tool technical field, specifically a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal.
Background technology
USB is English UniversalSerialBus(USB (universal serial bus)) abbreviation, and its Chinese is referred to as " logical get lines crossed ", is an external bus standard, for connection and the communication of specification computer and external unit.This bus standard is the interfacing being applied in PC field.The plug and play of USB interface support equipment and warm connection function.USB will combine proposition in the end of the year 1994 by Intel, Compaq, IBM, Microsoft Deng Duo company.
What existing server was commonly used is USB2.0 interface and USB3.0 interface, and the maximum transmission bandwidth of USB2.0 is 480Mbps(and 60MB/s), and the maximum transmission bandwidth of USB3.0 is up to 5.0Gbps(500MB/s).USB2.0, based on half-duplex two-wire bus, can only provide one-way data flow transmission, and USB3.0 adopts antithesis simplex four-wire system differential signal line, so support two-way concurrent data flow transmission, this is also the key reason that new criteria speed is surged.
Increasing server master board starts to adopt USB3.0 interface, for meeting the measuring signal integrality demand of USB3.0, proposes a kind of USB tool supporting USB2.0Tx signal testing, USB3.0Tx signal testing and USB3.0Rx signal testing herein.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal is provided, it can on one piece of measurement jig, realize the measuring signal integrality demand of USB3.0, namely on one piece of measurement jig, USB2.0Tx signal testing, USB3.0Tx signal testing and USB3.0Rx signal testing can be supported simultaneously.
The utility model solves the technical scheme that its technical matters adopts:
Support a measurement jig for USB2.0Tx signal and USB3.0Tx/Rx signal, comprising:
A USB3.0A type standard male, is connected with USBPort to be measured;
A USB3.0A type female, the Rx signal end of USB3.0A type standard male is connected;
Two pairs of SMA females, are connected with the Tx signal end of USB2.0 and USB3.0 respectively;
And printing board PCB, reserved USB3.0A type standard male, USB3.0A type female and SMA female mounting hole and signaling point on printing board PCB, each pin of USB3.0A type standard male, USB3.0A type female and SMA female is connected by the three pairs of differential signal lines are corresponding with the signaling point on printing board PCB.
Further, the D+/D-pin of described USB3.0A type standard male is connected to a pair SMA female, the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type standard male connects another to SMA female, and the StdA_SSRX+/StdA_SSRX-pin of USB3.0A type standard male is connected to the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type female.
Further, a described USB3.0A type standard male, USB3.0A type female, two pairs of SMA females and a differential signal line are arranged as tree structure, the trunk place of tree structure is USB3.0A type standard male, and bifurcation is USB3.0A type standard male and two pairs of SMA females.
Further, the P end of described often pair of differential signal line and the long difference of N end line control within 1mil.
Further, described differential signal line adopts 90 ohm differential signal wires.
The beneficial effect that the measurement jig of a kind of USB2.0Tx of support signal of the present utility model and USB3.0Tx/Rx signal is compared with prior art produced is:
1) the utility model can on one piece of measurement jig, and support USB2.0Tx signal testing, USB3.0Tx signal testing and USB3.0Rx signal testing, realize the measuring signal integrality demand of USB3.0, general geological coodinate system is high, effectively can reduce USB tool cost simultaneously;
2) the utility model USB3.0A type standard male, USB3.0A type female, two pairs of SMA females and a differential signal line are arranged as tree structure, according to test smelting tool layout, design corresponding pcb board shape, the design of this tree structure makes tool small volume, and is convenient to Layout cabling.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is pin schematic diagram of the utility model USB3.0A type standard male;
Accompanying drawing 3 is pin schematic diagram of the utility model USB3.0A type female.
In figure, 100, USB3.0A type standard male, 200, USB3.0A type female, 300, SMA female, 400, differential signal line, 500, printing board PCB.
Embodiment
Below in conjunction with accompanying drawing 1-3, the measurement jig of a kind of USB2.0Tx of support signal of the present utility model and USB3.0Tx/Rx signal is described in detail below.
As shown in Figure 1, a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal of the present utility model, its structure comprises: a USB3.0A type standard male 100, be connected with USBPort to be measured, this USB3.0A type standard male 100 is backward compatible, has the function of USB2.0, USB3.0 concurrently; The Rx signal end of USB3.0A type female 200, a USB3.0A type standard male 100 is connected; Two pairs of SMA females 300, are connected with the Tx signal end of USB2.0 and USB3.0 respectively; And printing board PCB 500, reserved USB3.0A type standard male 100, USB3.0A type female 200 and SMA female 300 mounting hole and signaling point on printing board PCB 500, USB3.0A type standard male 100, USB3.0A type female 200 are connected by 90 ohm differential signal wires 400 are corresponding with the signaling point on printing board PCB 500 with each pin of SMA female 300.An above-mentioned USB3.0A type standard male 100, USB3.0A type female 200, two pairs of SMA females 300 and differential signal line 400 are arranged as tree structure, the trunk place of tree structure is USB3.0A type standard male 100, and bifurcation is USB3.0A type standard male 100 and two pairs of SMA females 300.
As shown in Figure 2, the Pin of USB3.0A type standard male 100 is defined as:
As shown in Figure 3, the Pin of USB3.0A type female 200 is defined as:
The D+/D-pin of described USB3.0A type standard male 100 is connected to a pair SMA female 300, the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type standard male 100 connects another is connected to USB3.0A type female 200 StdA_SSTX+/StdA_SSTX-pin to the StdA_SSRX+/StdA_SSRX-pin of SMA female 300, USB3.0A type standard male 100.
A kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal of the present utility model, its method for making comprises the steps:
1) PCB configuration design: according to the shape of measurement jig in Fig. 1, designs corresponding pcb board, reserves USB3.0A type standard male 100, USB3.0A type female 200 and SMA female 300 mounting hole and signaling point;
2) PCBLayout design: the D+/D-pin of USB3.0A type standard male 100 is connected to corresponding P end and N end SMA female 300 with a pair 90 ohm differential signal wires 400, with another, StdA_SSTX+/StdA_SSTX-pin of USB3.0A type standard male 100 is connected to by 90 ohm differential signal wires 400 to P end and the N end SMA female 300 of another correspondence, with a pair 90 ohm differential signal wires 400 again, the StdA_SSRX+/StdA_SSRX-pin of USB3.0A type standard male 100 is connected to the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type female 200, and the P of often pair of differential signal line 400 end and the long difference of N end line are controlled within 1mil,
3) make PCB printed circuit board (PCB), USB3.0 standard A type male, USB3.0 standard A type female and two pairs of SMA females 300 are welded to relevant position, and the design of measurement jig can complete realization.
Claims (5)
1. support a measurement jig for USB2.0Tx signal and USB3.0Tx/Rx signal, it is characterized in that, comprising:
A USB3.0A type standard male, is connected with USBPort to be measured;
A USB3.0A type female, the Rx signal end of USB3.0A type standard male is connected;
Two pairs of SMA females, are connected with the Tx signal end of USB2.0 and USB3.0 respectively;
And printing board PCB, reserved USB3.0A type standard male, USB3.0A type female and SMA female mounting hole and signaling point on printing board PCB, each pin of USB3.0A type standard male, USB3.0A type female and SMA female is connected by the three pairs of differential signal lines are corresponding with the signaling point on printing board PCB.
2. a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal according to claim 1, it is characterized in that, the D+/D-pin of described USB3.0A type standard male is connected to a pair SMA female, the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type standard male connects another to SMA female, and the StdA_SSRX+/StdA_SSRX-pin of USB3.0A type standard male is connected to the StdA_SSTX+/StdA_SSTX-pin of USB3.0A type female.
3. a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal according to claim 1 and 2, it is characterized in that, a described USB3.0A type standard male, USB3.0A type female, two pairs of SMA females and a differential signal line are arranged as tree structure, the trunk place of tree structure is USB3.0A type standard male, and bifurcation is USB3.0A type standard male and two pairs of SMA females.
4. a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal according to claim 1 and 2, is characterized in that, the P end of described often pair of differential signal line and the long difference of N end line control within 1mil.
5. a kind of measurement jig supporting USB2.0Tx signal and USB3.0Tx/Rx signal according to claim 1 and 2, is characterized in that, described differential signal line adopts 90 ohm differential signal wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552763.7U CN204990275U (en) | 2015-07-28 | 2015-07-28 | Test fixture supporting USB2.0 Tx signal and USB3.0 Tx/Rx signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552763.7U CN204990275U (en) | 2015-07-28 | 2015-07-28 | Test fixture supporting USB2.0 Tx signal and USB3.0 Tx/Rx signal |
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| Publication Number | Publication Date |
|---|---|
| CN204990275U true CN204990275U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552763.7U Expired - Fee Related CN204990275U (en) | 2015-07-28 | 2015-07-28 | Test fixture supporting USB2.0 Tx signal and USB3.0 Tx/Rx signal |
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| CN (1) | CN204990275U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106649015A (en) * | 2016-12-29 | 2017-05-10 | 郑州云海信息技术有限公司 | Testing device and testing method of USB interface |
| CN107783865A (en) * | 2016-08-26 | 2018-03-09 | 神讯电脑(昆山)有限公司 | USB testers |
| CN108363648A (en) * | 2018-01-25 | 2018-08-03 | 郑州云海信息技术有限公司 | The system and method for USB3.0 signals in a kind of detection plate |
| CN113138317A (en) * | 2021-04-09 | 2021-07-20 | 长芯盛（武汉）科技有限公司 | High-efficiency integrated test method and tester for USB cable |
-
2015
- 2015-07-28 CN CN201520552763.7U patent/CN204990275U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783865A (en) * | 2016-08-26 | 2018-03-09 | 神讯电脑(昆山)有限公司 | USB testers |
| CN106649015A (en) * | 2016-12-29 | 2017-05-10 | 郑州云海信息技术有限公司 | Testing device and testing method of USB interface |
| CN108363648A (en) * | 2018-01-25 | 2018-08-03 | 郑州云海信息技术有限公司 | The system and method for USB3.0 signals in a kind of detection plate |
| CN108363648B (en) * | 2018-01-25 | 2021-08-20 | 郑州云海信息技术有限公司 | System and method for detecting USB3.0 signal in board |
| CN113138317A (en) * | 2021-04-09 | 2021-07-20 | 长芯盛（武汉）科技有限公司 | High-efficiency integrated test method and tester for USB cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20170728 |