CN209402580U - A kind of HDMI relaying extender - Google Patents

Abstract

A kind of HDMI relaying extender, including signal input port, main control chip, signal output port, the model CLX1601 of the main control chip, the pin of the signal input port and the pin of main control chip connect；The pin of the signal output port is also connect with the pin of main control chip；The main control chip receives the HIMI signal of signal input port input, and the HIMI signal of input is reformed by CLX1601 main control chip timing to be exported with after signal enhanced processing by signal output port.Since CLX1601 main control chip has signal sequence reforming function and signal amplifying function, the HIMI signal of input is reformed by CLX1601 main control chip timing to be exported with after signal enhanced processing by signal output port, to extend the distance of HDMI signal transmission.

Description

A kind of HDMI relaying extender

Technical field

This application involves HDMI signal handling equipments, and in particular to a kind of HDMI relaying extender.

Background technique

The transmission range of HDMI signal is 15 meters, when display equipment and control equipment are not put together more than 15 meters When, display equipment is difficult to obtain HDMI signal from control equipment, also just can not play out and show.

Summary of the invention

The application provides a kind of HDMI relaying extender, to extend the distance of HDMI signal transmission.

According in a first aspect, providing a kind of HDMI relaying extender, including signal input port, master control in a kind of embodiment Chip, signal output port, the model CLX1601 of the main control chip, the signal input port draw equipped with TDMS_D2+ Foot, TDMS_D2- pin, TDMS_D1+ pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- pin, TDMS_CLK+ Pin, TDMS_CLK- pin, these pins of signal input port successively with the RX2P pin of main control chip, RX2M pin, RX1P pin, RX1M pin, RX0P pin, RX0M pin, RXCP pin, the connection of RXCM pin；The signal output port Equipped with TDMS_D2+ pin, TDMS_D2- pin, TDMS_D1+ pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- These pins of pin, TDMS_CLK+ pin, TDMS_CLK- pin, signal output port successively draw with the TX2P of main control chip Foot, TX2M pin, TX1P pin, TX1M pin, TX0P pin, TX0M pin, TXCP pin, the connection of TXCM pin；The master The HIMI signal that chip receives signal input port input is controlled, the HIMI signal of input passes through CLX1601 main control chip timing weight It is exported after whole and signal enhanced processing by signal output port.

Preferably, further include the first power-switching circuit and second source conversion circuit, be respectively used to convert 5V power supply Working power is provided to main control chip for 1.0V and 3.3V voltage.

Preferably, first power-switching circuit includes DC-DC power source chip and peripheral circuit, DC-DC power source core Piece has input terminal, the first output end and second output terminal, and peripheral circuit includes the second inductance, the 20th capacitor, the 21st Capacitor, the 23rd capacitor, the 41st resistance, the 42nd resistance；The input terminal and 5V power supply of DC-DC power source chip connect It connects, the first output end of DC-DC power source chip passes through the second inductance connection to 3.3V output end, the 23rd capacitor and the 41st It is connected to after resistor coupled in parallel between the second output terminal and 3.3V output end of the DC-DC power source chip；DC-DC power source chip Second output terminal also passes through the 42nd resistance eutral grounding；The 3.3V output end also passes through the 20th capacitor being connected in parallel, 21 capacity earths.

Preferably, the second source conversion circuit includes DC-DC power source chip and peripheral circuit, DC-DC power source core Piece has input terminal, the first output end and second output terminal, and peripheral circuit includes third inductance, the 25th capacitor, the 20th Six capacitors, the 27th capacitor, the 44th resistance, the 45th resistance；The input terminal and 5V power supply of DC-DC power source chip connect It connects, the first output end of DC-DC power source chip passes through third inductance connection to 1.0V output end, the 27th capacitor and the 44th It is connected to after resistor coupled in parallel between the second output terminal and 1.0V output end of the DC-DC power source chip；DC-DC power source chip Second output terminal also passes through the 45th resistance eutral grounding；The 1.0V output end also pass through the 25th capacitor being connected in parallel, 26th capacity earth.

Preferably, the model MT3406 of the DC-DC power source chip.

HDMI according to above-described embodiment relays extender, since there is CLX1601 main control chip signal sequence to reform function Energy and signal amplifying function, the HIMI signal of input is reformed by CLX1601 main control chip timing to be led to after signal enhanced processing Signal output port output is crossed, to extend the distance of HDMI signal transmission.According to the input HDMI signal of different resolution ratio, Different distances can be extended, wherein can extend 25m distance in highest 4K 60Hz4:4:4 resolution ratio, 4K 30Hz can be with Extend 40m distance, 50m distance can be extended in 1080p resolution ratio.Further, the first power-switching circuit and second are provided with External 5V power supply can be converted to 3.3V and 1.0V power supply, stable work is provided for main control chip by power-switching circuit Power supply.

Detailed description of the invention

Fig. 1 is the circuit diagram of the application signal input port；

Fig. 2 is the circuit diagram of the application main control chip；

Fig. 3 is the circuit diagram of the application signal output port；

Fig. 4 is 5V power input port circuit diagram；

Fig. 5 is the circuit diagram of the first conversion circuit；

Fig. 6 is the circuit diagram of the second conversion circuit.

Specific embodiment

Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.

It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object, Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and It is indirectly connected with (connection).

Fig. 1-Fig. 3 is please referred to, the application HDMI relays extender, including signal input port CN1, CLX1601 master control core Piece U1, signal output port CN2, the signal input port CN1 are equipped with TDMS_D2+ pin, TDMS_D2- pin, TDMS_D1 + pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- pin, TDMS_CLK+ pin, TDMS_CLK- pin, signal These pins of input port CN1 successively with the RX2P pin of main control chip U1, RX2M pin, RX1P pin, RX1M pin, RX0P pin, RX0M pin, RXCP pin, the connection of RXCM pin；The signal output port CN2 also is provided with TDMS_D2+ and draws Foot, TDMS_D2- pin, TDMS_D1+ pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- pin, TDMS_CLK+ Pin, TDMS_CLK- pin, these pins of signal output port CN2 successively draw with TX2P pin, the TX2M of main control chip U1 Foot, TX1P pin, TX1M pin, TX0P pin, TX0M pin, TXCP pin, the connection of TXCM pin；The main control chip U2 connects Receive the HIMI signal of signal input port CN1 input, the HIMI signal of input reformed by CLX1601 main control chip U1 timing and It is exported after signal enhanced processing by signal output port CN2.

Referring to FIG. 4, the application can be using access external power supply, external power supply is by USB interface J1 after switch F1 Access 5V power supply.

Again referring to FIG. 5, it is the circuit diagram of the first power-switching circuit, the first power-switching circuit includes DC-DC electricity Source chip U7 and peripheral circuit, DC-DC power source chip U7 have input terminal, the first output end and second output terminal, periphery electricity Road includes the second inductance L2, the 20th capacitor C20, the 21st capacitor C21, the 23rd capacitor C23, the 41st resistance R41, the 42nd resistance R42；The input terminal of DC-DC power source chip U7 is connect with 5V power supply, and DC-DC power source chip U7 first is defeated Outlet is connected to 3.3V output end by the second inductance L2, connects after the 23rd capacitor C23 is in parallel with the 41st resistance R41 Between the second output terminal and 3.3V output end of the DC-DC power source chip U7；The second output terminal of DC-DC power source chip U7 Also it is grounded by the 42nd resistance R42；The 3.3V output end also passes through the 20th capacitor C20 being connected in parallel, the 20th One capacitor C21 ground connection.

Again referring to FIG. 6, second source conversion circuit includes DC-DC power source chip U9 and peripheral circuit, second source The circuit structure of conversion circuit is identical as the circuit structure of the first power-switching circuit, the difference is that only component in circuit The parameter of setting has part different, and details are not described herein again.

In a preferred embodiment, the model of above-mentioned DC-DC power source chip uses MT3406.

Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple It deduces, deform or replaces.

Claims (5)

1. a kind of HDMI relays extender, which is characterized in that including signal input port, main control chip, signal output port, institute The model CLX1601 of main control chip is stated, the signal input port is equipped with TDMS_D2+ pin, TDMS_D2- pin, TDMS_ D1+ pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- pin, TDMS_CLK+ pin, TDMS_CLK- pin, letter These pins of number input port successively with the RX2P pin of main control chip, RX2M pin, RX1P pin, RX1M pin, RX0P Pin, RX0M pin, RXCP pin, the connection of RXCM pin；The signal output port also is provided with TDMS_D2+ pin, TDMS_ D2- pin, TDMS_D1+ pin, TDMS_D1- pin, TDMS_D0+ pin, TDMS_D0- pin, TDMS_CLK+ pin, TDMS_CLK- pin, these pins of signal output port successively draw with the TX2P pin of main control chip, TX2M pin, TX1P Foot, TX1M pin, TX0P pin, TX0M pin, TXCP pin, the connection of TXCM pin；The main control chip receives signal input The HIMI signal of port input, the HIMI signal of input is after the reformation of CLX1601 main control chip timing and signal enhanced processing It is exported by signal output port.

2. HDMI as described in claim 1 relays extender, which is characterized in that further include the first power-switching circuit and second Power-switching circuit, is respectively used to 5V power supply being converted to 3.3V and 1.0V voltage and provides working power to main control chip.

3. HDMI as claimed in claim 2 relays extender, which is characterized in that first power-switching circuit includes DC- DC power supply chip and peripheral circuit, DC-DC power source chip have input terminal, the first output end and second output terminal, periphery electricity Road includes the second inductance, the 20th capacitor, the 21st capacitor, the 23rd capacitor, the 41st resistance, the 42nd electricity Resistance；The input terminal of DC-DC power source chip is connect with 5V power supply, and the first output end of DC-DC power source chip passes through the second inductance connection To 3.3V output end, second that the DC-DC power source chip is connected to after the 23rd capacitor and the 41st resistor coupled in parallel is defeated Between outlet and 3.3V output end；The second output terminal of DC-DC power source chip also passes through the 42nd resistance eutral grounding；The 3.3V Output end also passes through the 20th capacitor, the 21st capacity earth being connected in parallel.

4. HDMI as claimed in claim 2 relays extender, which is characterized in that the second source conversion circuit includes DC- DC power supply chip and peripheral circuit, DC-DC power source chip have input terminal, the first output end and second output terminal, periphery electricity Road includes third inductance, the 25th capacitor, the 26th capacitor, the 27th capacitor, the 44th resistance, the 45th electricity Resistance；The input terminal of DC-DC power source chip is connect with 5V power supply, and the first output end of DC-DC power source chip passes through third inductance connection To 1.0V output end, second that the DC-DC power source chip is connected to after the 27th capacitor and the 44th resistor coupled in parallel is defeated Between outlet and 1.0V output end；The second output terminal of DC-DC power source chip also passes through the 45th resistance eutral grounding；The 1.0V Output end also passes through the 25th capacitor, the 26th capacity earth being connected in parallel.

5. HDMI as described in claim 3 or 4 relays extender, which is characterized in that the model of the DC-DC power source chip MT3406。