CN201111998Y

CN201111998Y - High-speed digital transmission system

Info

Publication number: CN201111998Y
Application number: CNU2007201279949U
Authority: CN
Inventors: 叶时堃
Original assignee: TENRICH INTERNATIONAL CORP
Current assignee: Tianrui Electronic Science and Technology Development (Kunshan) Co., Ltd.
Priority date: 2007-08-03
Filing date: 2007-08-03
Publication date: 2008-09-10
Anticipated expiration: 2017-08-03

Abstract

The utility model relates to a high speed digital transmission system which at least comprises a first connection device and a second connection device and a transmission signal cable; the first connection device and the second connection device are respectively arranged between a first connector and the transmission signal cable and between a second connector and the transmission signal cable; the transmission signal cable comprises a conductive layer, a first insulation layer and a second insulation layer which are respectively arranged at the two sides of the conductive layer, and an earth-plate; the thickness of the conductive layer is from 0.018 to 0.1mm, and the width thereof is from 0.2 to 0.8mm; the thickness of the first insulation layer and the second insulation layer is from 0.04 to 0.3mm. The high speed digital transmission system is a transmission system with better impedance property applied between the first connector and the second connector.

Description

High-speed digital transmission system

Technical field

The relevant a kind of high-speed digital transmission system of the utility model refers to a kind of digital transmission system that can have preferable characteristic impedance especially.

Background technology

Please refer to shown in Figure 1 is example with LVDS signal transmission system, because the signal traffic between LCD and the system host, huge and frequency very is very high, so, be erected at the high-frequency signals transmission system between LCD interface A and the system host plate interface B at present, be to adopt the high hypervelocity of tool (1.4Gb/s), Low Voltage Differential Signal receiver (the LVDS of low-power consumption and low electromagnetic characteristic, Low Voltage Differential Signal) C is as the signal coffret of LCD interface A, and via the connection of signal transmission line (Transmission Line) D, with the signal coffret on the system host plate interface B, promptly with system host plate interface B on connector body B1, constitute signal together and connect and form jointly a kind of LVDS of commonly using signal transmission system.

But LVDS interface standard according to the ANSI-YUA-EIA-644-I995 definition, the employed signal transmission line D of this LVDS signal transmission system, must operating characteristic impedance (Z0) be the signal transmission line D of 100 Ω ± 5%, could be complementary with the circuit impedance (Z) of LCD interface A and system host plate interface B, this LVDS signal transmission system must satisfy under the situation of this condition simultaneously, could reduce electromagnetic interference (EMI) and reduce noise (noise) interference, correctly carry out the signal transmission between LCD interface (or abbreviating the LVDS interface as) A and the system host plate interface B, or avoid malfunction to produce; Otherwise the signal transmission between LCD interface A and the system host plate interface B will produce signal reflex and noise (noise) and disturb and cause the loss of signal, distortion and distortion.

And be fit to use at this signal transmission line D that commonly uses in the LVDS signal transmission system, there is characteristic impedance (Z0) to be designed to traditional connecting line (Wire Cable), flexible printed wiring board (FPC, Flexible Printed Circuit) or the mini coaxial cable (MiniCoaxial Cable) etc. of 100 Ω ± 5% at present; But, the comparatively simple and unit price lower cost of structure commonly use flexible flat cable (FFC, Flexible Flat Cable), because its characteristic impedance (Z0) value is approximately all about 130 Ω, do not meet the standard operating specification of LVDS signal transmission system, do not use so be not adapted at present commonly using in the LVDS signal transmission system.

The utility model content

Main purpose of the present utility model is promptly providing a kind of electronics line, optical line, Serial Advanced Technology Attachment (Serial Advanced Technology Attachment of forming, hereinafter to be referred as SATA), and can be applied in two interfaces to have the high-speed digital transmission system of preferable characteristic impedance by first and second jockey.

The technical solution of the utility model is: this high-speed digital transmission system is used in the transmission system between first and second interface, and it focuses on, and it includes at least: first and second jockey and transmission signal line; Wherein: this first jockey is located between first interface and transmission signal line; This second jockey is located between second interface and transmission signal line; This transmission signal line includes: conductive layer, first insulating barrier, second insulating barrier and ground plate, the thickness of this conductive layer is 0.018～0.1mm, width is 0.2～0.8mm, this first insulating barrier is located at conductive layer one side, its thickness is 0.04～0.3mm, and this second insulating barrier is located at the opposite side of conductive layer with respect to first insulating barrier, and its thickness is 0.04～0.3mm, this ground plate is located at first insulating barrier or second insulating barrier, one side, or both sides have ground plate simultaneously.

The beneficial effects of the utility model are: can obtain a kind of digital transmission system that can have preferable characteristic impedance.

Description of drawings

Fig. 1 is the LVDS signal transmission system schematic diagram of commonly using between LCD LCD interface and the system host plate interface;

Fig. 2 is the structural representation of first and second interface and high-speed digital transmission system in the utility model;

Fig. 3 A, B are the cross-sectional view of transmission signal line in the utility model;

Fig. 4 is the STRUCTURE DECOMPOSITION figure of the utility model high speed digital transmission system;

Fig. 5 is the STRUCTURE DECOMPOSITION figure of the utility model centerboard connector;

Fig. 6 A, B are the cross-sectional view of the utility model centerboard connector;

Fig. 7 is the cross-sectional view of flip connector in the utility model;

Fig. 8 is another structural representation of first and second interface and high-speed digital transmission system in the utility model;

Fig. 9 is a structural representation again of first and second interface and high-speed digital transmission system in the utility model.

[figure number explanation]

High-speed digital transmission system 1 first interface 2

Second interface, 3 first jockeys 10

First connector body, 11 first conductive parts 12

Metal shell 131 on second connector body 13

Following metal shell 132 metal card fasteners 133

Hook portion 1311 press sections 1312

Second jockey 20 the 3rd connector body 21

Terminal 211 slots 212

Removable cover 213 second conductive parts 22

Transmission signal line 30 conductive layers 31

Copper cash a first insulating barrier 32

Second insulating barrier, 33 ground plates 34

LCD interface A system host plate interface B

Connector body B1 Low Voltage Differential Signal receiver C

Signal transmission line D

Embodiment

Characteristics of the present utility model can be consulted the detailed description of the graphic and embodiment of this case and obtained to be well understood to.

Be to use transmission system between first and

second interface

2,3 as this high-speed digital transmission system 1 in Fig. 2 the utility model, it includes at least: first and

second jockey

10,20 and transmission signal line 30.

This transmission signal line 30 includes: conductive layer 31, first and second

insulating barrier

32,33 and ground plate 34, as shown in Figure 3A; Wherein

This conductive layer 31, this conductive layer 31 include a plurality of copper cash a that is arranged in parallel, and the integral thickness of its conductive layer 31 is 0.018～0.1mm, and width is 0.2～0.8mm.

First insulating barrier 32, this first insulating barrier 32 is located at conductive layer 31 1 sides, and this first insulating barrier 32 is the PET material, and its thickness is 0.04～0.3mm.

Second insulating barrier 33, this second insulating barrier 33 is located at the opposite side of conductive layer 31 with respect to first insulating barrier 32, and this second insulating barrier 33 is PETG (PET) or Polyimide (polyimide) material, and its thickness is 0.04～0.3mm.

Ground plate 34 is located at first insulating barrier 32 or second insulating barrier, 33 one or both sides have ground plate simultaneously, and as shown in the figure, it is located at the opposite side of second insulating barrier 33 with respect to conductive layer 31, and this ground plate 34 can be copper or aluminium sheet; This ground plate 34 also can be located at the opposite side of first insulating barrier 32 with respect to conductive layer 31, shown in Fig. 3 B.

By first and second

insulating barrier

32,33 conductive layer 31 is coated on the centre and constitutes one, its processing procedure is easy, manufacturing cost is lower, and have softness, anti-combustion, cold-resistant thermal property, and the characteristic impedance of this transmission signal line 30 (Z0) is relevant with the width and the thickness of the conductive layer 31 of transmission signal line 30, and is inverse relation.

In addition, also the thickness with first and second

insulating barrier

32,33 of transmission signal line 30 is relevant in the characteristic impedance of this transmission signal line 30 (Z0).Especially, the characteristic impedance of transmission signal line 30 (Z0) is inverse relation with the thickness of first and second

insulating barrier

32,33 of transmission signal line 30.

So the utility model adjusts the thickness of conductive layer 30 in 0.018～0.1mm, and width is 0.2～0.8mm, and make first, two

insulating barriers

32,33 thickness is adjusted in 0.04～0.3mm, just can form one and have the transmission signal line 30 that preferable characteristic impedance (Z0) is 100 Ω ± 5%, its transmission signal line 30 can be used as the electronics line, optical line, Serial Advanced Technology Attachment (SerialAdvanced Technology Attachment, hereinafter to be referred as SATA), also can be applicable to LVDS, USB, SATA (Serial ATA), ODD (Optical Disc Drive), RJ11, RJ45, in 1394 the signal transmission system.

When being applied to first, two

interfaces

2,3 when being respectively between LCD interface and system host plate interface, this first jockey 10 is located at 30 on first interface 2 and transmission signal line, and this first jockey 10 can be the flip connector, the plate connector, be welded to connect or the crimping connection, among the embodiment as shown in Figure 4, this first jockey 10 is the plate connector, this plate connector can include first connector body 11 of being located at first interface 2, be located at first conductive part 12 (its conductive part 12 exposes to the part of transmission signal line 30 for conductive layer 31 1 sides) of transmission signal line 30 1 sides, and be located at second connector body 13 on first conductive part 12, this first connector body 11 can be Low Voltage Differential Signal receiver (LVDS), this second connector body 13 and being provided be coated on body 13 outside and correspond to first conductive part 12 on, following metal shell 131,132, and metal card fastener 133, please consult shown in Figure 5 simultaneously, the avris position that this metal card fastener 133 is located in body 13 contacts with last metal shell 131, this metal card fastener 133 is provided with a hook portion 1311 of extending towards body 13 the place aheads, and with respect to hook portion 1311 press section 1312 of sides in addition, with when second connector body 13 inserts first connector body 11 to the location, can utilize the hook portion 1311 and first connector body, 11 1 sides of metal card fastener 133 to form the button effect of holding [as shown in Figure 6A], and can be by pushing press section 1312, make this hook portion 1311 break away from the first connector body 11[shown in Fig. 6 B], and make first, two

connector bodies

11,13 break away from mutually.

And this second jockey 20 is located at 30 on second interface 3 and transmission signal line, and this second jockey can be the flip connector, the plate connector, be welded to connect or the crimping connection, among the embodiment as shown in Figure 4, this second jockey 20 is the flip connector, this flip connector can include the 3rd connector body 21 of being located at second interface 3 and second conductive part 22 of being located at transmission signal line 30 1 sides (its conductive part 22 exposes to the part of transmission signal line 30 for conductive layer 31 1 sides), please consult shown in Figure 7 simultaneously, the 3rd connector body 21 also is provided with a slot 212 and a removable cover 213 that accommodates terminal 211, this removable cover 213 is hubbed on the 3rd connector body 21, when removable cover 213 when upwards upset starts, can provide second conductive part, 22 these bodies 21 of insertion of transmission signal line 30 to accommodate in the slot 212 of terminal 211, when removable cover 213 covers to the location downwards, second conductive part 22 of transmission signal line 30 can be fixed on the slot 212 inner and formation electric connections of body.

Certainly, this is first years old, two jockeys can be different the connector form, perhaps be ODD (Optical Disc Drive), SATA (Serial ATA), HDMI (High-DefinitionMultimedia Interface), USB or D-sub coffret, be respectively flip connector and plate connector as shown in the figure, or this first, two jockeys can be respectively plate connector and flip connector, or as shown in Figure 8, this first jockey 10 can be for being welded to connect, and second jockey 20 can connect for crimping, it can also be all identical connector form, this is first years old, two jockeys can be distinguished flip connector or plate connector, perhaps as shown in Figure 9, this is first years old, two

jockeys

10,20 can perhaps be crimping and connect for being welded to connect, and can reach the effect of electric connection equally

So utilizing first and second jockey 10,20 (flip connector and plate connector) to constitute between first and second interface 2,3 (LCD interface and system host plate interface) respectively electrically connects, and the signal that is made of between two interfaces transmission signal line 30 connects, and has the transmission signal line can't be with the disappearance that is LVDS signal transmission system to improve to practise.

Technology contents of the present utility model and technical characterstic the sixth of the twelve Earthly Branches disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case utility model spirit based on announcement of the present utility model.Therefore, protection range of the present utility model should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present utility model and modifications, and is contained by following claim.

Claims

1. high-speed digital transmission system, this high-speed digital transmission system is used in the transmission system between first and second interface, it is characterized in that, and it includes at least: first and second jockey and transmission signal line; Wherein:

This first jockey is located between first interface and transmission signal line;

This second jockey is located between second interface and transmission signal line;

This transmission signal line includes: conductive layer, first insulating barrier, second insulating barrier and ground plate, the thickness of this conductive layer is 0.018～0.1mm, width is 0.2～0.8mm, this first insulating barrier is located at conductive layer one side, its thickness is 0.04～0.3mm, and this second insulating barrier is located at the opposite side of conductive layer with respect to first insulating barrier, and its thickness is 0.04～0.3mm, this ground plate is located at first insulating barrier or second insulating barrier, one side, or both sides have ground plate simultaneously.

2. high-speed digital transmission system according to claim 1 is characterized in that this conductive layer includes a plurality of copper cash that is arranged in parallel.

3. high-speed digital transmission system according to claim 1 is characterized in that this ground plate is copper or aluminium sheet.

4. high-speed digital transmission system according to claim 1 is characterized in that this transmission signal line is electronics line, optical line or Serial Advanced Technology Attachment.

5. high-speed digital transmission system according to claim 1 is characterized in that this ground plate is located at the opposite side of second insulating barrier with respect to conductive layer, or is located at the opposite side of first insulating barrier with respect to conductive layer.

6. high-speed digital transmission system according to claim 1 is characterized in that, this first and second jockey is flip connector, plate connector, be welded to connect or crimping connects, and this first and second jockey is all identical or different connector form.

7. as high-speed digital transmission system as described in the claim 6, it is characterized in that, this plate connector includes first connector body of being located at first interface or second interface, be located at first conductive part of transmission signal line one side, and be located at second connector body on the conductive part, this second connector body and be provided be coated on body exterior and correspond to first conductive part on, following metal shell, and metal card fastener, the avris position that this metal card fastener is located in body contacts with last metal shell, this metal card fastener is provided with a hook portion of extending towards body the place ahead, when second connector body inserts first connector body when locating, the hook portion of metal card fastener and first connector body, one side form button and hold effect.

8. as high-speed digital transmission system as described in the claim 6, it is characterized in that, second conductive part that this flip connector includes the 3rd connector body of being located at first interface or second interface and is located at transmission signal line one side, the 3rd connector body also is provided with a slot and a removable cover that accommodates terminal, and this removable cover is hubbed on the 3rd connector body.

9. high-speed digital transmission system according to claim 1 is characterized in that this first and second jockey is ODD, SATA, HDMI, USB or D-sub coffret.