High-speed cable assembly and server
By introducing Retimer chips and CDR circuits into the high-speed cable assembly of the server, the problem of signal jitter and short transmission distance when transmitting high-speed signals is solved, and the longer signal transmission distance and higher signal strength are achieved, which reduces the motherboard component requirements.
Patent Information
- Application Number
- CN202420258579.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-01
AI Technical Summary
When transmitting high-speed signals, the existing internal cable components of the server have short transmission distances and high cost, and lack components such as Redriver and Retimer, which leads to signal jitter and manufacturing difficulties.
Design a high-speed cable assembly, including a Retimer chip and a CDR circuit, is electrically connected to the cable parts through soldering positions, increasing the signal finishing process and eliminating signal jitter.
It effectively eliminates signal jitter, improves signal transmission distance and strength, reduces the demand for signal preprocessing components on the server motherboard, and improves the space utilization of the motherboard.
Smart Images
Figure CN222483892U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of signal transmission processing, and in particular to a high-speed cable assembly and a server. Background Art
[0002] With the rapid development of AI computing, servers will apply the latest versions of various data transmission protocols, such as PCI-E 6.0, PCI-E7.0, and CXL 3.0. The signal transmission rate will increase exponentially, which puts forward new requirements for the development of server PCB, cable assemblies and other technologies.
[0003] At present, the common processing method in the market is to use active optical cables or passive copper cables to transmit data inside and outside the server, replacing PCB wiring with cables to greatly improve signal stability and avoid the use of ultra-low loss media for PCB, which will cause a substantial increase in costs.
[0004] In the internal cable assemblies of the server, all of them are currently connected directly with copper cables, that is, the circuits for signal processing, amplification, filtering, etc. are all on the server's motherboard, and there is no active circuit inside the cable to process the signal. However, with the increasing transmission rate of signals, the physical structure and system architecture of the server are becoming more and more modular and GPU resource pooled, the cost of server PCB is also increasing, and there will be more and more scenarios where internal cables need to be used for transmission. Traditional internal cable assemblies do not have components such as redriver and retimer. In the application scenarios of transmitting PCI-E6.0, PCI-E7.0, CXL 3.0, they will encounter problems such as short transmission distance and difficulty in manufacturing raw cable assemblies. In addition, more signal pre-processing components will need to be arranged on the motherboard, which will put pressure on the layout and cost of the motherboard.
[0005] Therefore, there is an urgent need for a cable assembly that can eliminate signal jitter and enable signal transmission over a longer distance. Utility Model Content
[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a high-speed cable assembly and a server that can eliminate signal jitter and enable longer transmission distances.
[0007] The purpose of this disclosure is achieved through the following technical solutions:
[0008] A high-speed cable assembly, comprising:
[0009] A cable component and a connecting plug, wherein the connecting plug includes an AEC circuit board, the AEC circuit board includes a board body and a Retimer chip, a welding position is provided on the surface of the board body, one end of the cable component is welded to the welding position, the Retimer chip is arranged on the board body, the Retimer chip is electrically connected to the welding position, and a CDR circuit is provided in the Retimer chip.
[0010] In one embodiment, the Retimer chip is surface mounted on the board body.
[0011] In one of the embodiments, the connecting plug further includes an insulating shell, and the insulating shell is molded around the board body.
[0012] In one of the embodiments, the insulating shell is provided with a slot, and the connecting plug further comprises a back cover, the back cover is pressed into the slot, and the back cover is used to be fixed to the main board or the adapter board.
[0013] In one of the embodiments, the AEC circuit board further includes an EEPROM chip, the EEPROM chip is disposed in the board body, and the EEPROM chip is electrically connected to the Retimer chip.
[0014] In one of the embodiments, the AEC circuit board further includes a resistor, wherein the resistor is disposed on the board body and is electrically connected to the Retimer chip.
[0015] In one of the embodiments, the AEC circuit board further includes a capacitor, which is disposed on the board body and is electrically connected to the Retimer chip.
[0016] In one embodiment, the connection plug is a drawstring connection plug.
[0017] A server comprises a mainboard, an adapter board and the high-speed cable assembly described in any one of the above embodiments, wherein the number of the connecting plugs is two, namely a first connecting plug and a second connecting plug, the two connecting plugs are electrically connected to the two ends of the cable component respectively, a first connector is provided on the mainboard, a second connector is provided on the adapter board, the first connecting plug is plugged into the first connector, and the second connecting plug is plugged into the first connector; the adapter board is connected to the mainboard via a first PCIe connector.
[0018] In one of the embodiments, the server further includes an insert card, and the insert card is connected to the adapter board via a second PCIe connector.
[0019] Compared with the prior art, the present invention has at least the following advantages:
[0020] In the above-mentioned high-speed cable assembly, a welding position is provided on the surface of the board body, the cable component is welded to the welding position, the Retimer chip is arranged on the board body, the Retimer chip is electrically connected to the welding position, so that the cable component is electrically connected to the Retimer chip through the welding position, and a CDR circuit is provided in the Retimer chip, the CDR circuit can convert digital signals and analog signals, when the external analog signal enters the CDR circuit, the analog signal is restored to a digital signal, and then converted back to an analog signal and sent out, that is, the Retimer chip adds a signal sorting process, eliminates the jitter of the signal, and thus makes the signal transmission distance longer. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the structure of a high-speed cable assembly according to an embodiment;
[0023] Figure 2 for Figure 1 The structural exploded view of the high-speed cable assembly shown;
[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the AEC circuit board of the high-speed cable assembly shown;
[0025] Figure 4 for Figure 3 Another structural schematic diagram of the AEC circuit board shown;
[0026] Figure 5 A schematic diagram of the structure of a server according to an embodiment. DETAILED DESCRIPTION
[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0030] The present disclosure provides a high-speed cable assembly, including a cable component and a connecting plug, wherein the connecting plug includes an AEC (Active Electrical Cable) circuit board, the AEC circuit board includes a board body and a Retimer chip, a welding position is provided on the surface of the board body, one end of the cable component is welded to the welding position, the Retimer chip is arranged on the board body, the Retimer chip is electrically connected to the welding position, and a CDR circuit is provided in the Retimer chip.
[0031] In the above-mentioned high-speed cable assembly, a welding position is provided on the surface of the board body, the cable component is welded to the welding position, the Retimer chip is arranged on the board body, the Retimer chip is electrically connected to the welding position, so that the cable component is electrically connected to the Retimer chip through the welding position, and a CDR circuit is provided in the Retimer chip, the CDR circuit can convert digital signals and analog signals, when the external analog signal enters the CDR circuit, the analog signal is restored to a digital signal, and then converted back to an analog signal and sent out, that is, the Retimer chip adds a signal sorting process, eliminates the jitter of the signal, and thus makes the signal transmission distance longer.
[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:
[0033] like Figures 1 to 4As shown, a high-speed cable assembly 10a of an embodiment includes a cable component 100 and a connecting plug 200, wherein the connecting plug 200 includes an AEC circuit board 210, wherein the AEC circuit board 210 includes a board body 211 and a Retimer chip 212, wherein a welding position is provided on the surface of the board body 211, wherein one end of the cable component 100 is welded to the welding position, wherein the Retimer chip 212 is disposed on the board body 211, wherein the Retimer chip 212 is electrically connected to the welding position, and wherein a CDR circuit is provided inside the Retimer chip 212.
[0034] It can be understood that, compared with the traditional cable assembly, the high-speed cable assembly 10a of the present application has a Retimer chip 212 added to the board body 211, and the Retimer chip 212 is electrically connected to the cable assembly 100 by welding, and a CDR circuit is provided inside the Retimer chip 212, and the CDR circuit can convert digital signals and analog signals. When the external analog signal is transmitted from the cable assembly 100 to the Retimer chip 212, the analog signal is converted into a digital signal by the CDR circuit, and then converted back into an analog signal and sent out, that is, the Retimer chip 212 adds a signal sorting process, which can eliminate the jitter of the signal and improve the signal strength, thereby making the transmission distance of the cable assembly longer. Further, since the signal transmission capacity of the cable assembly is improved, there is no need to arrange more signal preprocessing components on the mainboard 300 of the server 10, which improves the space utilization of the mainboard 300. It should be noted that the CDR circuit belongs to the prior art, and the method for converting the analog signal into a digital signal by the CDR circuit also belongs to the prior art.
[0035] In the above-mentioned high-speed cable assembly 10a, a welding position is provided on the surface of the board body 211, and the cable component 100 is welded at the welding position. The Retimer chip 212 is arranged on the board body 211, and the Retimer chip 212 is electrically connected to the welding position, so that the cable component 100 is electrically connected to the Retimer chip 212 through the welding position, and a CDR circuit is provided in the Retimer chip 212. The CDR circuit can convert digital signals and analog signals. When the external analog signal enters the CDR circuit, the analog signal is restored to a digital signal, and then converted back into an analog signal and sent out. That is, the Retimer chip 212 adds a signal sorting process, eliminates the jitter of the signal, and thus makes the signal transmission distance longer.
[0036] In one embodiment, the Retimer chip 212 is surface mounted on the board body 211. It can be understood that the Retimer chip 212 is packaged on the board body 211 through SMT patch, so that the Retimer chip 212 is fixed to the board body 211.
[0037] like Figure 1 and Figure 2 As shown, in one embodiment, the connecting plug 200 further includes an insulating housing 220, and the insulating housing 220 is overmolded in the board body 211. It can be understood that the board body 211 is fixed inside the insulating housing 220, so that the insulating housing 220 plays a protective role and the surface of the connecting plug 200 is insulated.
[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the insulating housing 220 is provided with a card slot, and the connecting plug 200 further includes a back cover 230, the back cover 230 is pressed into the card slot, and the back cover 230 is used to be fixed to the main board 300 or the adapter board 400. It can be understood that the back cover 230 is pressed into the card slot so that the back cover 230 and the insulating housing 220 are snapped together, and the AEC circuit board 210 is located between the back cover 230 and the insulating housing 220, so that the back cover 230 and the insulating housing 220 play a protective role for the AEC circuit board 210. Further, the connecting plug 200 is fixed to the main board 300 or the adapter board 400 through the back cover 230, and the fixing method of the back cover 230 and the main board 300 or the adapter board 400 can be snap-fitting or bonding.
[0039] like Figure 3 As shown, in one embodiment, the AEC circuit board 210 further includes an EEPROM chip 213, which is disposed on the board body 211 and is electrically connected to the Retimer chip 212. It can be understood that the EEPROM chip 213 is a memory to prevent data loss after the server 10 is powered off.
[0040] like Figure 3 As shown, in one embodiment, the AEC circuit board 210 further includes resistors 214, which are disposed on the board body 211 and are electrically connected to the Retimer chip 212. It can be understood that the resistors 214 control the current in the circuit, thereby amplifying the signal in the circuit.
[0041] like Figure 4As shown, in one embodiment, the AEC circuit board 210 further includes capacitors 215, which are disposed on the board body 211 and are electrically connected to the Retimer chip 212. It can be understood that the capacitor 215 plays a filtering role in the circuit, and can filter out high-frequency noise signals in the circuit to ensure the stability and reliability of the circuit, and at the same time, it acts as a coupling between the two circuits to achieve signal transmission.
[0042] like Figure 2 As shown, in one embodiment, the connection plug 200 is a drawstring connection plug. In this embodiment, the connection plug 200 further includes a drawstring 240 and a spring piece 250. A mounting groove is provided on the top of the insulating shell 220. The spring piece 250 is located in the mounting groove and connected to the insulating shell 220. The drawstring 240 is connected to the spring piece 250. The drawstring 240 pulls the spring piece 250 to drive the insulating shell 220 to move, thereby pulling out and unlocking the connection plug 200, so as to improve the convenience of the connection plug 200 in the narrow installation environment.
[0043] like Figure 5 As shown, the present application also provides a server 10, including a mainboard 300, an adapter board 400 and a high-speed cable assembly 10a described in any of the above embodiments, wherein the number of the connecting plugs 200 is two, namely a first connecting plug 200a and a second connecting plug 200b. The two connecting plugs 200 are electrically connected to the two ends of the cable assembly 100, respectively, a first connector 310 is provided on the mainboard 300, a second connector 410 is provided on the adapter board 400, the first connecting plug 200a is plugged into the first connector 310, and the second connecting plug 200b is plugged into the first connector 310; the adapter board 400 is connected to the mainboard 300 through a first PCIe connector 500.
[0044] It can be understood that the first connection plug 200a is installed on the mainboard 300, the second connection plug 200b is installed on the adapter board 400, and the first connection plug 200a is electrically connected to the second connection plug 200b through the cable assembly 100, and the adapter board 400 is electrically connected to the mainboard 300 through the first PCIe connector 500, so that the signal is transmitted on the mainboard 300, the first connection plug 200a, the second connection plug 200b and the adapter board 400. Further, since the Retimer chip 212 is provided in the connection plug 200, and the Retimer chip 212 is provided with a CDR circuit, the signal transmission capability of the cable assembly is improved, that is, there is no need to arrange more signal pre-processing components on the mainboard 300 of the server 10, thereby improving the space utilization of the mainboard 300.
[0045] like Figure 5As shown, in one embodiment, the server 10 further includes an add-in card 600, and the add-in card 600 is connected to the adapter board 400 via a second PCIe connector 700. In this embodiment, the add-in card 600 is connected to the adapter board 400 via the second PCIe connector 700, that is, the add-in card 600 is electrically connected to the mainboard 300 via the adapter board 400, and the function of the server 10 can be expanded through the add-in card 600, such as adding more storage, network and other devices.
[0046] Compared with the prior art, the present invention has at least the following advantages:
[0047] In the above-mentioned high-speed cable assembly 10a, a welding position is provided on the surface of the board body 211, and the cable component 100 is welded at the welding position. The Retimer chip 212 is arranged on the board body 211, and the Retimer chip 212 is electrically connected to the welding position, so that the cable component 100 is electrically connected to the Retimer chip 212 through the welding position, and a CDR circuit is provided in the Retimer chip 212. The CDR circuit can convert digital signals and analog signals. When the external analog signal enters the CDR circuit, the analog signal is restored to a digital signal, and then converted back into an analog signal and sent out. That is, the Retimer chip 212 adds a signal sorting process, eliminates the jitter of the signal, and thus makes the signal transmission distance longer.
[0048] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.
Claims
1. A high-speed cable assembly, characterized in that: include: Cable parts; A connecting plug, wherein the connecting plug includes an AEC circuit board, the AEC circuit board includes a board body and a Retimer chip, a welding position is provided on the surface of the board body, one end of the cable component is welded to the welding position, the Retimer chip is arranged on the board body, the Retimer chip is electrically connected to the welding position, and a CDR circuit is provided in the Retimer chip.
2. The high-speed cable assembly according to claim 1, characterized in that: The Retimer chip is surface mounted on the board body.
3. The high-speed cable assembly according to claim 1, characterized in that: The connecting plug further comprises an insulating shell, and the insulating shell is molded around the board body.
4. The high-speed cable assembly according to claim 3, characterized in that: The insulating shell is provided with a card slot, and the connecting plug further comprises a rear cover, which is pressed into the card slot and is used to be fixed to a main board or an adapter board.
5. The high-speed cable assembly according to claim 1, characterized in that: The AEC circuit board also includes an EEPROM chip, which is arranged on the board body and is electrically connected to the Retimer chip.
6. The high-speed cable assembly according to claim 1, characterized in that: The AEC circuit board further includes a resistor, which is arranged on the board body and is electrically connected to the Retimer chip.
7. The high-speed cable assembly according to claim 1, characterized in that: The AEC circuit board further includes a capacitor, which is disposed on the board body and is electrically connected to the Retimer chip.
8. The high-speed cable assembly according to claim 1, characterized in that: The connecting plug is a drawstring connecting plug.
9. A server, characterized in that: A high-speed cable assembly comprising a mainboard, an adapter board and any one of claims 1 to 8, wherein the number of the connecting plugs is two, namely a first connecting plug and a second connecting plug, the two connecting plugs are electrically connected to the two ends of the cable component, a first connector is provided on the mainboard, a second connector is provided on the adapter board, the first connecting plug is plugged into the first connector, and the second connecting plug is plugged into the first connector; the adapter board is connected to the mainboard via a first PCIe connector.
10. The server according to claim 9, characterized in that The server further comprises an insert card, and the insert card is connected to the adapter board via a second PCIe connector.