CN108174506A - A kind of printed circuit board and its wires design - Google Patents
A kind of printed circuit board and its wires design Download PDFInfo
- Publication number
- CN108174506A CN108174506A CN201711332739.2A CN201711332739A CN108174506A CN 108174506 A CN108174506 A CN 108174506A CN 201711332739 A CN201711332739 A CN 201711332739A CN 108174506 A CN108174506 A CN 108174506A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- wires design
- data line
- memory chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10212—Programmable component
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to technical field of integrated circuits more particularly to a kind of PCB routing to design, and applied to double-deck printed circuit board, is made up of：One processor chips；One memory chip；Printing connecting line group, for being directly connected to processor chips and memory chip；Wherein, printing connecting line group is made of data line and address wire；And the printed circuit board using the wires design；Above-mentioned technical proposal has low EMI and high stability, does not interfere with the integrity test of DDR, and the area on the PCB of occupancy is small, of low cost.
Description
Technical field
The present invention relates to technical field of integrated circuits more particularly to a kind of printed circuit board and its wires designs.
Background technology
PCB (Printed Circuit Board printed circuit boards, abbreviation PCB) is important electronic unit, is electronics member
The supporter of device is the carrier of electronic component electrical connection.
Printed circuit board develops to two-sided, multilayer and flexibility from individual layer, and remains on respective development trend.By
Develop in constantly to high-precision, high density and high reliability direction, constantly reduce volume, reduce cost, improve performance so that
Printed board still maintains powerful vitality in the development engineering of future electronic equipment.
Addresses of the DDR (Double Data Rate Double Data Rate synchronous DRAMs, abbreviation DDR) on PCB
Line and data line often string resistance, for preventing source from reflecting or end reflection, but in double-deck printed circuit board,
String resistance can cause certain electromagnetic interference, and then influence the stability of DDR, while also take up the area on more PCB.
Invention content
In view of the above-mentioned problems, the present invention proposes a kind of wires design of printed circuit board, applied to double-deck printing electricity
Road plate, wherein, it is made up of：
One processor chips；
One memory chip；
Printing connecting line group, for being directly connected to the processor chips and the memory chip；
Wherein, the printing connecting line group is made of data line and address wire.
Above-mentioned wires design, wherein, the quantity of the data line is 32.
Above-mentioned wires design, wherein, the quantity of the data line is 16.
Above-mentioned wires design, wherein, the quantity of described address line is 16.
Above-mentioned wires design, wherein, the quantity of described address line is 8.
A kind of printed circuit board, wherein, application as above any wires design, and the printed circuit board is double
Layer.
Advantageous effect：A kind of printed circuit board proposed by the present invention and its wires design, it is steady with low EMI and height
It is qualitative, do not interfere with the integrity test of DDR, the area on the PCB of occupancy is small, of low cost.
Description of the drawings
Fig. 1 is the plate face schematic diagram of the wires design of printed circuit board in one embodiment of the invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figure 1, in a preferred embodiment, it is proposed that a kind of wires design of printed circuit board, Ke Yiying
For double-deck printed circuit board, wherein, it is made up of：
One processor chips；
One memory chip；
Printing connecting line group, for being directly connected to processor chips and memory chip；
Wherein, printing connecting line group is made of data line and address wire.
In above-mentioned technical proposal, the signal in the address wire and data line of DDR is high-frequency signal；It is traditional due to eliminating
String resistance in DDR in address wire and data line has carried out impedance matching to address wire in DDR and data line, so as in high frequency
The reflection demand of signal is met under signal so that the reflex circuit of signal shortens, and the performance of DDR is correspondingly improved.
In a preferred embodiment, the quantity of data line is 32, but this is a kind of preferred situation, should not be regarded
To be limitation of the present invention, data line quantity is that other situations are also should be considered to be encompassed in the present invention.
In a preferred embodiment, the quantity of data line is 16, but this is a kind of preferred situation, should not be regarded
To be limitation of the present invention, data line quantity is that other situations are also should be considered to be encompassed in the present invention.
In a preferred embodiment, the quantity of address wire is 16, but this is a kind of preferred situation, should not be regarded
To be limitation of the present invention, number of address lines is that other situations are also should be considered to be encompassed in the present invention.
In a preferred embodiment, the quantity of address wire is 8, but this is a kind of preferred situation, should not be regarded
To be limitation of the present invention, number of address lines is that other situations are also should be considered to be encompassed in the present invention.
Embodiment two
In a preferred embodiment, it is also proposed that a kind of printed circuit board, wherein it is possible to using as above any cloth
Line designs, and printed circuit board is bilayer.
In above-mentioned technical proposal, as a result of above-mentioned wires design, the overall performance of the printed circuit board formed
It is improved, the area smaller of the printed circuit board of occupancy, cost is cheaper.
In conclusion a kind of PCB routing design proposed by the present invention, applied to double-deck printed circuit board, by
Consisting of：One processor chips；One memory chip；Printing connecting line group, for being directly connected to processor chips and memory chip；
Wherein, printing connecting line group is made of data line and address wire；And the printed circuit board using the wires design；Above-mentioned technical side
Case has low EMI and high stability, does not interfere with the integrity test of DDR, and the area on the PCB of occupancy is small, at low cost
It is honest and clean.
By explanation and attached drawing, the exemplary embodiments of the specific structure of specific embodiment are given, based on essence of the invention
God can also make other conversions.Although foregoing invention proposes existing preferred embodiment, however, these contents are not intended as
Limitation.
For a person skilled in the art, after reading above description, various changes and modifications undoubtedly will be evident.
Therefore, appended claims should regard the whole variations and modifications of true intention and range for covering the present invention as.It is weighing
The range and content of any and all equivalence, are all considered as still belonging to the intent and scope of the invention in the range of sharp claim.
Claims (6)
1. a kind of wires design of printed circuit board, applied to double-deck printed circuit board, which is characterized in that be made up of：
One processor chips；
One memory chip；
Printing connecting line group, for being directly connected to the processor chips and the memory chip；
Wherein, the printing connecting line group is made of data line and address wire.
2. wires design according to claim 1, which is characterized in that the quantity of the data line is 32.
3. wires design according to claim 1, which is characterized in that the quantity of the data line is 16.
4. wires design according to claim 1, which is characterized in that the quantity of described address line is 16.
5. wires design according to claim 1, which is characterized in that the quantity of described address line is 8.
6. a kind of printed circuit board, which is characterized in that wires design of the application as described in Claims 1 to 5 is any, and the print
Circuit board processed is bilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332739.2A CN108174506A (en) | 2017-12-13 | 2017-12-13 | A kind of printed circuit board and its wires design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332739.2A CN108174506A (en) | 2017-12-13 | 2017-12-13 | A kind of printed circuit board and its wires design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108174506A true CN108174506A (en) | 2018-06-15 |
Family
ID=62525203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711332739.2A Pending CN108174506A (en) | 2017-12-13 | 2017-12-13 | A kind of printed circuit board and its wires design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108174506A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1032198A (en) * | 1963-11-06 | 1966-06-08 | Werk Fur Bauelemente Der Nachr | A constructional apparatus for electronic and electrical circuits |
| CN1306735A (en) * | 1998-06-26 | 2001-08-01 | 克里斯·卡拉巴茨奥斯 | Appts. and method for improving computer memory speed and capacity |
| CN105490358A (en) * | 2015-07-03 | 2016-04-13 | 广东云控照明科技有限公司 | Portable intelligent touch panel and wireless charging and transmitting device thereof |
| CN206023827U (en) * | 2016-09-21 | 2017-03-15 | 北京船舶通信导航有限公司 | A kind of boat-carrying wireless router based on mobile satellite communication link |
-
2017
- 2017-12-13 CN CN201711332739.2A patent/CN108174506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1032198A (en) * | 1963-11-06 | 1966-06-08 | Werk Fur Bauelemente Der Nachr | A constructional apparatus for electronic and electrical circuits |
| CN1306735A (en) * | 1998-06-26 | 2001-08-01 | 克里斯·卡拉巴茨奥斯 | Appts. and method for improving computer memory speed and capacity |
| CN105490358A (en) * | 2015-07-03 | 2016-04-13 | 广东云控照明科技有限公司 | Portable intelligent touch panel and wireless charging and transmitting device thereof |
| CN206023827U (en) * | 2016-09-21 | 2017-03-15 | 北京船舶通信导航有限公司 | A kind of boat-carrying wireless router based on mobile satellite communication link |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |
|
| RJ01 | Rejection of invention patent application after publication |