CN211959420U

CN211959420U - Network port butt-joint circuit inside set top box and intelligent set top box

Info

Publication number: CN211959420U
Application number: CN202020960110.3U
Authority: CN
Inventors: 曹建华
Original assignee: Shanghai Inesa Digital Technology Co ltd
Current assignee: Shanghai Inesa Digital Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-11-17
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a network port butt-joint circuit in a set top box and an intelligent set top box, wherein a DVB module and a Wi-Fi module are arranged in the set top box; the network port butt-joint circuit comprises a first resistor and a first capacitor which are connected in series with a positive sending end of a network port of the Wi-Fi module and a positive receiving end of the DVB module, a second resistor and a second capacitor which are connected in series with a negative sending end of the network port of the Wi-Fi module and a negative receiving end of the DVB module, a third resistor and a third capacitor which are connected in series with a positive receiving end of the network port of the Wi-Fi module and a positive sending end of the DVB module, and a fourth resistor and a fourth capacitor which are connected in series with a negative receiving end of the network port of the Wi-Fi module and a negative sending end of the DVB module. The utility model discloses a net gape butt joint circuit does not occupy too many PCB spaces, has still reduced design cost, and simultaneously in actual test, the performance is the same with using network transformer.

Description

Network port butt-joint circuit inside set top box and intelligent set top box

Technical Field

The utility model relates to a STB net gape butt joint technique, in particular to inside net gape butt joint circuit of STB and intelligent STB.

Background

With the popularization of the existing intelligent set top box and the appearance of the 4K ultra-high definition, more and more unit modules need to be processed in the set top box, the unit modules are all units capable of working independently, but the key point of how to connect data in series becomes more and more; because three independent unit modules (a DVB (digital video broadcasting) module, an EOC (access technology based on a cable television coaxial cable network using an Ethernet protocol) module and a Wi-Fi (wireless Internet access) module) in the set top box are provided with network ports, the realization of data interconnection and intercommunication between the network ports is feasible. The network port is connected with the network port commonly used in the market through the network transformer, so that the design cost is increased, the space of the network transformer is required to be reserved when a Printed Circuit Board (PCB) is wired, and the utilization rate of the PCB is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to connect the net gape through network transformer in order to overcome prior art's net gape, and this kind of mode has not only increased design cost, still makes the space that needs to leave network transformer when the PCB wiring, has reduced PCB utilization ratio defect, provides inside net gape butt joint circuit of a STB and intelligent STB.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides a network port butt-joint circuit in a set-top box, wherein a DVB module and a Wi-Fi module are arranged in the set-top box, and a network port of the DVB module and a network port of the Wi-Fi module are respectively provided with a positive sending terminal, a negative sending terminal, a positive receiving terminal and a negative receiving terminal; the network port butt-joint circuit comprises a first resistor and a first capacitor which are connected in series with a positive sending end of a network port of the Wi-Fi module and a positive receiving end of the DVB module, a second resistor and a second capacitor which are connected in series with a negative sending end of the network port of the Wi-Fi module and a negative receiving end of the DVB module, a third resistor and a third capacitor which are connected in series with a positive receiving end of the network port of the Wi-Fi module and a positive sending end of the DVB module, and a fourth resistor and a fourth capacitor which are connected in series with a negative receiving end of the network port of the Wi-Fi module and a negative sending end of the DVB module.

Preferably, the capacitance values of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are the same.

Preferably, the capacity value is 0.1 uF.

Preferably, the first resistor, the second resistor, the third resistor and the fourth resistor have the same resistance.

Preferably, the resistance value ranges from 0 Ω to 51 Ω.

The utility model also provides an intelligent set-top box, it includes as above the inside net gape butt joint circuit of STB.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a net gape butt joint circuit adopts the design of resistance-capacitance ware to dock net gape and net gape, and wherein resistance is the impedance match for the reinforcing signal line, and electric capacity plays ac coupling's effect (the ac coupling of similar network transformer), not only does not occupy too many PCB spaces, has still reduced the design cost, and simultaneously in actual test, the performance is the same with using network transformer.

Drawings

Fig. 1 is a schematic circuit diagram of a network port docking circuit inside a set-top box according to a preferred embodiment of the present invention.

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

The utility model provides a net gape butt joint circuit in the set-top box, wherein, set-top box is inside to be equipped with DVB module and Wi-Fi module, the net gape of DVB module and the net gape of Wi-Fi module are equallyd divide and are respectively equipped with positive sending terminal, negative sending terminal, positive receiving terminal, negative receiving terminal, the utility model discloses a network interface circuit is used for the net gape butt joint between DVB module and Wi-Fi module specifically;

as shown in fig. 1, the network interface docking circuit includes a first resistor R1 and a first capacitor C1 connected in series to a positive transmitting end WIFI _ TXP of the network interface of the Wi-Fi module and a positive receiving end DVB _ RXP of the DVB module, a second resistor R2 and a second capacitor C2 connected in series to a negative transmitting end WIFI _ TXN of the network interface of the Wi-Fi module and a negative receiving end DVB _ RXN of the DVB module, a third resistor R3 and a third capacitor C3 connected in series to a positive receiving end WIFI _ RXP of the network interface of the Wi-Fi module and a positive transmitting end DVB _ TXP of the DVB module, and a fourth resistor R4 and a fourth capacitor C4 connected in series to a negative receiving end WIFI _ RXN of the network interface of the Wi-Fi module and a negative transmitting end DVB _ TXN of the DVB module.

Preferably, the capacitance values of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are the same, and preferably, the capacitance value is 0.1 uF.

Preferably, the first resistor, the second resistor, the third resistor and the fourth resistor have the same resistance value, and the value range of the resistance values is 0-51 Ω, and preferably 51 Ω.

The utility model discloses a net gape butt joint circuit adopts the design of resistance-capacitance ware to dock net gape and net gape, and wherein resistance is the impedance match for the reinforcing signal line, and electric capacity plays ac coupling's effect (the ac coupling of similar network transformer), not only does not occupy too many PCB spaces, has still reduced the design cost, and simultaneously in actual test, the performance is the same with using network transformer.

The utility model also provides an intelligence STB, it includes the inside net gape butt joint circuit of foretell STB.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims

1. A network port butt-joint circuit in a set top box is characterized in that a DVB module and a Wi-Fi module are arranged in the set top box, and a network port of the DVB module and a network port of the Wi-Fi module are respectively provided with a positive sending end, a negative sending end, a positive receiving end and a negative receiving end; the network port butt-joint circuit comprises a first resistor and a first capacitor which are connected in series with a positive sending end of a network port of the Wi-Fi module and a positive receiving end of the DVB module, a second resistor and a second capacitor which are connected in series with a negative sending end of the network port of the Wi-Fi module and a negative receiving end of the DVB module, a third resistor and a third capacitor which are connected in series with a positive receiving end of the network port of the Wi-Fi module and a positive sending end of the DVB module, and a fourth resistor and a fourth capacitor which are connected in series with a negative receiving end of the network port of the Wi-Fi module and a negative sending end of the DVB module.

2. The network port interface circuit inside of set-top box of claim 1, wherein the capacitance values of said first capacitor, second capacitor, third capacitor and fourth capacitor are the same.

3. The network port interface circuit inside of set-top box of claim 2, characterized in that said capacity value is 0.1 uF.

4. The network port interface circuit inside of set-top box of claim 1, characterized in that, the first resistor, the second resistor, the third resistor, the fourth resistor have the same resistance.

5. The network port interface circuit inside of set-top box of claim 4, characterized in that the resistance value ranges from 0 to 51 Ω.

6. An intelligent set-top box comprising a network interface interfacing circuit inside the set-top box according to any one of claims 1-5.