CN216873325U - Network port interconnection circuit suitable for set top box and set top box - Google Patents

Abstract

The utility model discloses a network port interconnection circuit suitable for a set top box and the set top box. The network port interconnection circuit comprises: the first network port and the second network port are arranged in the set top box; a first inductor and a first capacitor are connected in series between the RXP pin of the first network port and the TXP pin of the second network port; a second inductor and a second capacitor are connected in series between the RXN pin of the first network port and the TXN pin of the second network port; a third inductor and a third capacitor are connected in series between the TXP pin of the first network port and the RXP pin of the second network port; a fourth inductor and a fourth capacitor are connected in series between the TXN pin of the first network port and the RXN pin of the second network port; the first network port and the second network port are any two of a DVB module network port, an EOC module network port and a WiFi module network port. The utility model adopts the form of series capacitance and inductance when the net port is connected with the net port, thereby not only reducing the cost, but also saving the PCB wiring space.

Description

Network port interconnection circuit suitable for set top box and set top box

Technical Field

The utility model belongs to the field of set top boxes, and particularly relates to a network port interconnection circuit suitable for a set top box and the set top box.

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; for the unit modules with network ports, it becomes feasible to connect the network ports to realize data interconnection. The network port is connected with the network port commonly used in the market through the network transformer, the connection mode not only increases the design cost, but also ensures that the space of the network transformer is reserved when the PCB is wired, and the utilization rate of the PCB is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that in the prior art, the cost is high and the PCB wiring space is occupied due to the fact that a network port is connected with a network port through a network transformer in a set top box, and provides a network port interconnection circuit suitable for the set top box and the set top box.

The utility model solves the technical problems through the following technical scheme:

a network port interconnect circuit for use with a set-top box, said network port interconnect circuit comprising: the first network port and the second network port are arranged in the set top box;

a first inductor and a first capacitor are connected in series between an RXP (receiving end positive) pin of the first network port and a TXP (transmitting end positive) pin of the second network port;

a second inductor and a second capacitor are connected in series between an RXN (receiving end negative) pin of the first network port and a TXN (transmitting end negative) pin of the second network port;

a third inductor and a third capacitor are connected in series between a TXP (transmitting terminal positive) pin of the first network port and an RXP (receiving terminal positive) pin of the second network port;

a fourth inductor and a fourth capacitor are connected in series between a TXN (transmitting end negative) pin of the first network port and an RXN (receiving end negative) pin of the second network port;

wherein the inductance values of the first inductor, the second inductor, the third inductor and the fourth inductor are 1-10nH, and the capacitance values of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are 100 nF;

the first network port and the second network port are any two of a DVB (digital video broadcasting) module network port, an EOC (Ethernet over coax) module network port and a WiFi module network port.

A set-top box comprises the internet access interconnection circuit.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows: in the network port interconnection circuit, the network port is connected with the network port in a series capacitance and inductance mode, and compared with a network transformer in the prior art, the network port interconnection circuit has the advantages that the cost is reduced, the PCB wiring space is saved, and the PCB utilization rate is improved.

Drawings

Fig. 1 is a schematic diagram of a network port interconnection circuit according to embodiment 1 of the present invention.

Detailed Description

The utility model is further illustrated by the following examples, which are not intended to limit the scope of the utility model.

Example 1

Fig. 1 shows a network port interconnection circuit suitable for a set-top box. The net mouth interconnection circuit includes: a first network port 11 and a second network port 12 which are arranged in the set top box; a first inductor L1 and a first capacitor C1 are connected in series between the RXP pin of the first net port 11 and the TXP pin of the second net port 12; a second inductor L2 and a second capacitor C2 are connected in series between the RXN pin of the first network port 11 and the TXN pin of the second network port 12; a third inductor L3 and a third capacitor C3 are connected in series between the TXP pin of the first net port 11 and the RXP pin of the second net port 12; a fourth inductor L4 and a fourth capacitor C4 are connected in series between the TXN pin of the first network port 11 and the RXN pin of the second network port 12; wherein, the inductance values of the first inductor L1, the second inductor L2, the third inductor L3 and the fourth inductor L4 are 1-10nH, and the capacitance values of the first capacitor C1, the second capacitor C2, the third capacitor C3 and the fourth capacitor C4 are 100 nF; the first network port 11 and the second network port 12 are any two of a DVB module network port, an EOC module network port and a WiFi module network port.

The DVB module network port is used for enabling the set top box to be accessed to a digital video broadcasting network, the EOC is used for enabling the set top box to be accessed to a cable television network, and the WiFi module network port is used for enabling the set top box to be accessed to a WiFi network. The network port interconnection circuit can realize interconnection between the DVB module network port and the EOC module network port, or interconnection between the EOC module network port and the WiFi module network port, or interconnection between the DVB module network port and the WiFi module network port.

In the network port interconnection circuit of the embodiment, the capacitors C1-C4 play a coupling role and replace the functions of a network transformer in the prior art; the inductors L1-L4 function as two: impedance matching, compared with resistance, the impedance matching has the advantages of small direct current resistance and reduced signal attenuation; and 2, eliminating the sharp pricks of the signal and reducing the interference of the signal to the outside.

In the network port interconnection circuit of the embodiment, the network port is connected with the network port in a series capacitance and inductance mode, and compared with a network transformer in the prior art, the network port interconnection circuit has the advantages that the cost is reduced, the PCB wiring space is saved, and the PCB utilization rate is improved.

Example 2

This embodiment provides a set-top box, which includes, in addition to the network interface interconnection circuit in embodiment 1, other software and hardware modules of the existing set-top box.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model 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 utility model, and these changes and modifications are within the scope of the utility model.

Claims (2)

1. A network port interconnection circuit suitable for a set-top box, the network port interconnection circuit comprising: the first network port and the second network port are arranged in the set top box;

a first inductor and a first capacitor are connected in series between the RXP pin of the first network port and the TXP pin of the second network port;

a second inductor and a second capacitor are connected in series between the RXN pin of the first network port and the TXN pin of the second network port;

a third inductor and a third capacitor are connected in series between the TXP pin of the first network port and the RXP pin of the second network port;

a fourth inductor and a fourth capacitor are connected in series between the TXN pin of the first network port and the RXN pin of the second network port;

wherein the inductance values of the first inductor, the second inductor, the third inductor and the fourth inductor are 1-10nH, and the capacitance values of the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are 100 nF;

the first network port and the second network port are any two of a DVB module network port, an EOC module network port and a WiFi module network port.

2. A set top box comprising the portal interconnection circuit of claim 1.

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