CN204968238U - Based on PCB wiring board circuit and PCB wiring board - Google Patents
Based on PCB wiring board circuit and PCB wiring board Download PDFInfo
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- CN204968238U CN204968238U CN201520602839.2U CN201520602839U CN204968238U CN 204968238 U CN204968238 U CN 204968238U CN 201520602839 U CN201520602839 U CN 201520602839U CN 204968238 U CN204968238 U CN 204968238U
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- ended signal
- single ended
- signal end
- signal
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Abstract
The utility model relates to a PCB technical field that lays wire, especially relate to one kind based on PCB wiring board circuit, including the single ended signal end for transmission single ended signal plans the single ended signal end, plans the single ended signal end and matches the single ended signal end, is used for transmitting the emulation signal, plans forming the differential signal between single ended signal and the single ended signal. Through set up one plan single ended signal end replace in the ground wire, and then make single ended signal end and the ground wire to keep apart, avoid single ended signal disturbed by the ground wire. Provide a PCB wiring board simultaneously, utilize short circuit point, generate a new network, carry out differential processing to the single ended signal line segment, can effectually prevent the nonvanishing phenomenon of safety distance in the identical network, effectively avoid planning the single ended signal end and link to each other with the ground copper face. The circuit need not add alone that to prohibit cloth regional, as long as increase a through -hole at needs in that the single ended signal line is short, can realize the transmission of signal, greatly reduced the wiring design cycle, save the time that the design set up.
Description
Technical field
The utility model relates to PCB layout technical field, particularly relates to a kind of Based PC B wiring plate circuit and PCB layout plate.
Background technology
PCB (PrintedCircuitBoard), Chinese is printed circuit board, and also known as printed substrate, being important electronic unit, is the supporter of electronic devices and components, is the carrier of electronic devices and components electrical connection.Pcb board is in order to realize its circuit function, usual needs are in the enterprising row wiring operation of pcb board, by the layout of carrying out wire connection between components and parts on pcb board, the good line of first cloth, by wire through the hole at pin place having electrical connection, while soldered elements, interelement connection can be realized like this, carry out the circuit function realizing pcb board.
When PCB layout, need in accordance with respective wiring rule.For example differential lines be exactly must walk two isometric, wide, closely close and at the line of same aspect; Radio frequency line will do impedance matching as requested; Clock line will carry out protecting etc.For single-ended signal line, when wires design, in order to improve the antijamming capability of single-ended signal line, also adopt the mode of " difference " to connect up, connected up to important holding wire by the mode of difference, antijamming capability is strong simultaneously, effective suppression electromagnetism, and sequential accurate positioning.As shown in Figure 1; for audio signal wire, usually design an interior ground wire 1 on the side of audio signal, after audio signal wire 2 layout-design, interior ground wire 1 layout-design complete; with an outer ground wire 3, holding wire, interior ground wire 1 are wrapped again, play a protective role.But this kind of mode easily produces following shortcoming: (1), because of audio signal wire 2, interior ground wire 1 is all wrapped up by outer ground wire 3, circuit in the course of the work, the interference of outer ground wire 3 easily received by interior ground wire 1, and then generation differential errors, (2) the Butut time can be long, because audio signal wire 2, the outer ground wire 3 of the outer Bao Yigen again of interior ground wire 1, workload is larger, (3) when connecting up, (holding wire between audio signal wire 2 and interior ground wire 1, interior ground wire 1 belongs to identical network) safe spacing is zero, as shown in Figure 2, interior ground wire 1 is easily made to be connected with ground copper face, this kind of wrong connected mode is also not easily detected there is (interior ground wire, outer ground wire all belongs to same attribute, be not easily distinguishable when therefore detecting), and then cannot differential signal be formed, (4) what the usual layout of 1, line was interiorly a large amount of forbids wiring area, arrange and forbid that wiring area then produces a large amount of workloads.And when designed lines modification process, must to forbidding that wiring area re-starts setting, workload is larger.
Utility model content
The utility model is exactly for the problems referred to above, provides antijamming capability strong, and the low Based PC B wiring plate circuit of installation work amount and PCB layout plate.
For achieving the above object, the utility model adopts following technical scheme,
A kind of Based PC B wiring plate circuit, wherein: comprise
Single-ended signal end, in order to transmit single-ended signal,
Endorsement end signal end, described endorsement end signal end mates described single-ended signal end, in order to pass endorsement end signal endorsement end signal,
Differential signal is formed between described endorsement end signal and described single-ended signal.
Preferably, above-mentioned Based PC B wiring plate circuit, wherein, described endorsement end signal endorsement end signal end is by an isolation resistance ground connection, and described endorsement end signal is by described isolation resistance ground connection.
Preferably, above-mentioned Based PC B wiring plate circuit, wherein, the resistance of described isolation resistance is zero.
Preferably, above-mentioned Based PC B wiring plate circuit, wherein, described single-ended signal end is audio signal end.
A kind of PCB layout plate, wherein, comprises
Single-ended signal end,
Earth connection,
Endorsement end signal end
Short circuit point is set between described endorsement end signal end and described earth connection.
Preferably, above-mentioned PCB layout plate, wherein, forms differential signal between described single-ended signal end and described endorsement end signal end.
Preferably, above-mentioned PCB layout plate, wherein, described short circuit point is adjacent with described earth connection and establish.
Preferably, above-mentioned PCB layout plate, wherein, described single-ended signal end is audio signal end.
Compared with prior art, the utility model has the advantages that:
(1), by arranging an endorsement end signal end replace interior ground wire, and then single-ended signal end and ground wire are isolated, avoid single-ended signal to be subject to grounding interference.
(2) short circuit point is utilized, generate a new network, difference processing is carried out to single-ended signal line segment, effectively can prevent the non-vanishing phenomenon of safe spacing in identical network, only by arranging a short circuit point, after short circuit point is set, endorsement end signal end is effectively avoided to be connected (when PCB layout with ground copper face, endorsement end signal end belongs to different attributes from ground copper face, so can not be connected when connecting up).Circuit need not add separately prohibits cloth region, as long as at needs at single-ended signal line short increase through hole, can realize the transmission of signal, greatly reduce the wires design cycle, saves the time that design is arranged.Better solve simultaneously and need the signal of interest line of protection well to be protected, make pcb board performance obtain good guarantee, design is rationalized more.
Accompanying drawing explanation
Fig. 1 is a kind of wire structures figure schematic diagram in prior art;
Fig. 2 is that in prior art, a kind of wire structures applies schematic diagram after copper;
Fig. 3 is the Based PC B wiring plate circuit embodiment in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.The utility model protection range is not only confined to the statement of following content.
Be understandable that, below about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection range of the present utility model as long as meet.
A kind of Based PC B wiring plate circuit, wherein: comprise
Single-ended signal end, in order to transmit single-ended signal,
Endorsement end signal end, described endorsement end signal end mates described single-ended signal end, in order to transmit endorsement end signal,
Differential signal is formed between described endorsement end signal and described single-ended signal.
The operation principle of technique scheme is: replace interior ground wire by arranging an endorsement end signal end, and then single-ended signal end and ground wire are isolated, avoid single-ended signal to be subject to grounding interference.
Enumerating an embodiment is example:
As shown in Figure 3, the schematic diagram of mobile phone MIC realization.Be single-ended signal end from MIC2801 components and parts OUTPUT pin, its audio signal exported, this audio signal is single-ended signal, and network name is defined as CDC_IN3_P.Strengthen to make the antijamming capability of the audio signal on PCB layout plate, effective suppression electromagnetism, prevent signal cross-talk etc., in OUTPUT leads ends adjacent area, one endorsement end signal end is set, network name is defined as CDC_IN3_M, CDC_IN3_M and CDC_IN3_P forms one and intends differential signal, by arranging a plan differential signal to single-ended signal end (CDC_IN3_P), independent " system " is become in order to make circuit signal processing section, complete and ground wire is isolated, antijamming capability strengthens, and effectively suppresses electromagnetism, prevents signal cross-talk.
As further preferred embodiment, above-mentioned Based PC B wiring plate circuit, wherein, described endorsement end signal end is by an isolation resistance R1 ground connection, and described endorsement end signal is by described isolation resistance R1 ground connection.Further, the resistance of described isolation resistance R1 is zero.By arranging the isolation resistance R1 that a resistance is zero Ω, making the not direct ground connection of endorsement end signal end, being conducive to the antijamming capability improving circuit further.
As further preferred embodiment, above-mentioned Based PC B wiring plate circuit, wherein, described single-ended signal end is audio signal end.
Usual endorsement end signal end mates setting mutually with single-ended signal end, and in consolidated network, endorsement end signal end can be one, also can be multiple, as long as ensure that the safe spacing between endorsement end signal end and single-ended signal end is zero.
A kind of PCB layout plate, wherein, comprises
Single-ended signal end,
Earth connection,
Endorsement end signal end
Short circuit point is set between described endorsement end signal end and described earth connection.Further, described short circuit point is formed by through hole.
Operation principle of the present utility model is: utilize short circuit point, generate a new network, difference processing is carried out to single-ended signal line segment, effectively can prevent the non-vanishing phenomenon of safe spacing in identical network, only by arranging a short circuit point, after short circuit point is set, endorsement end signal end is effectively avoided to be connected (when PCB layout with ground copper face, endorsement end signal end belongs to different attributes from ground copper face, so can not be connected when connecting up).Circuit need not add separately prohibits cloth region, as long as increase a short circuit point at needs at single-ended signal end, can realize the transmission of signal, greatly reduce the wires design cycle, save the time that design is arranged.Better solve simultaneously and need the signal of interest line of protection well to be protected, make pcb board performance obtain good guarantee, design is rationalized more.
As further preferred embodiment, above-mentioned PCB layout plate, wherein, forms differential signal between described single-ended signal end and described endorsement end signal end.Employing differential signal designs, and antijamming capability strengthens, and effectively suppresses electromagnetism, prevents signal cross-talk
As further preferred embodiment, above-mentioned PCB layout plate, wherein, described short circuit point is adjacent with described earth connection and establish.Adopt adjacent and mode that is that establish, avoid error between differential signal, such as, coupling error, electromagnetism error etc.
As further preferred embodiment, above-mentioned PCB layout plate, wherein, described single-ended signal end is audio signal end.
These are only the utility model preferred embodiment; not thereby execution mode of the present utility model and protection range is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilization the utility model specifications and diagramatic content and apparent change obtain in protection range of the present utility model.
Claims (9)
1. a Based PC B wiring plate circuit, is characterized in that: comprise
Single-ended signal end, in order to transmit single-ended signal,
Endorsement end signal end, described endorsement end signal end mates described single-ended signal end, in order to transmit endorsement end signal,
Differential signal is formed between described endorsement end signal and described single-ended signal.
2. Based PC B wiring plate circuit according to claim 1, is characterized in that, described endorsement end signal end is by an isolation resistance ground connection, and described endorsement end signal is by described isolation resistance ground connection.
3. Based PC B wiring plate circuit according to claim 2, is characterized in that, the resistance of described isolation resistance is zero.
4. Based PC B wiring plate circuit according to claim 2, it is characterized in that, described single-ended signal end is audio signal end.
5. a PCB layout plate, is characterized in that, comprises
Single-ended signal end,
Earth connection,
Endorsement end signal end
Short circuit point is set between described endorsement end signal end and described earth connection.
6. PCB layout plate according to claim 5, is characterized in that, forms differential signal between described single-ended signal end and described endorsement end signal end.
7. PCB layout plate according to claim 5, is characterized in that, described short circuit point is adjacent with described earth connection and establish.
8. PCB layout plate according to claim 5, is characterized in that, described single-ended signal end is audio signal end.
9. PCB layout plate according to claim 5, is characterized in that, described short circuit point is formed by through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602839.2U CN204968238U (en) | 2015-08-11 | 2015-08-11 | Based on PCB wiring board circuit and PCB wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602839.2U CN204968238U (en) | 2015-08-11 | 2015-08-11 | Based on PCB wiring board circuit and PCB wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204968238U true CN204968238U (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602839.2U Expired - Fee Related CN204968238U (en) | 2015-08-11 | 2015-08-11 | Based on PCB wiring board circuit and PCB wiring board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204968238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682361A (en) * | 2016-03-02 | 2016-06-15 | 惠州Tcl移动通信有限公司 | Printed circuit board (PCB) based network connection structure |
| CN116582625A (en) * | 2023-07-13 | 2023-08-11 | 合肥安迅精密技术有限公司 | System and method for prolonging transmission distance of CameraLink image data and chip mounter |
-
2015
- 2015-08-11 CN CN201520602839.2U patent/CN204968238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682361A (en) * | 2016-03-02 | 2016-06-15 | 惠州Tcl移动通信有限公司 | Printed circuit board (PCB) based network connection structure |
| CN116582625A (en) * | 2023-07-13 | 2023-08-11 | 合肥安迅精密技术有限公司 | System and method for prolonging transmission distance of CameraLink image data and chip mounter |
| CN116582625B (en) * | 2023-07-13 | 2023-09-08 | 合肥安迅精密技术有限公司 | System and method for prolonging transmission distance of CameraLink image data and chip mounter |
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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 |
Granted publication date: 20160113 Termination date: 20190811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |