CN211930638U

CN211930638U - Double-circuit received optical communication module

Info

Publication number: CN211930638U
Application number: CN202020994397.1U
Authority: CN
Inventors: 魏宏刚; 李宏鸣
Original assignee: Shanghai Dingpin Communication Technology Co ltd
Current assignee: Shanghai Dingpin Communication Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-11-13
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a light communication module is received to double-circuit, it includes central processing unit, central processing unit pegs graft with communication transmission platform's backplate, and the ware still includes: the first PIN-TIA optical receiver is connected with the central processing unit; the first limiting amplifier is respectively connected with the first PIN-TIA optical receiver and the central processor; the first CDR circuit is respectively connected with the first limiting amplifier and the central processing unit; the second PIN-TIA optical receiver is connected with the central processing unit; the second limiting amplifier is respectively connected with the second PIN-TIA optical receiver and the central processor; and the second CDR circuit is respectively connected with the second limiting amplifier and the central processing unit. The utility model discloses the structure is simpler, can effectively reduce cost when with the quantity of the received signal of the collection system of the equal consumption of the equal port of equal size etc. improved one time.

Description

Double-circuit received optical communication module

Technical Field

The utility model relates to an optical fiber communication field, concretely relates to light communication module is received to double-circuit.

Background

In recent years, with the rapid development of Chinese economy and the steady promotion of broadband Chinese strategy, the construction of the Chinese broadband access network accelerates the promotion of optical copper feeding and copper withdrawing. The optical module is composed of an optoelectronic device, a functional circuit, an optical interface and the like, wherein the optoelectronic device comprises a transmitting part and a receiving part. In brief, the optical module functions as a photoelectric converter, the transmitting end converts an electrical signal into an optical signal, and the receiving end converts the optical signal into the electrical signal after the optical signal is transmitted through the optical fiber. The high speed and low cost are the main development trend of the current optical module, the popularization of 4K high definition television and the application of new technologies such as 8K high definition and VR in the future will put higher requirements on bandwidth and speed, and will certainly promote the development of the next-generation PON technology.

At present, in applications such as data acquisition systems and video image monitoring in the fields of information security and the like, when an existing optical module receives two paths of signals, the existing optical module needs two corresponding optical modules to complete the two paths of signals, the product size, the power consumption, the cost and the like can be increased, and meanwhile, the integration level of the acquisition system is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem to a light communication module is received to double-circuit is provided.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a light communication module is received to double-circuit, light communication module is received to double-circuit includes central processing unit, central processing unit pegs graft with the backplate of communication transmission platform, light communication module is received to double-circuit still includes:

the first PIN-TIA optical receiver is connected with the central processing unit;

the first limiting amplifier is respectively connected with the first PIN-TIA optical receiver and the central processor;

the first CDR circuit is respectively connected with the first limiting amplifier and the central processing unit;

the second PIN-TIA optical receiver is connected with the central processing unit;

the second limiting amplifier is respectively connected with the second PIN-TIA optical receiver and the central processor;

and the second CDR circuit is respectively connected with the second limiting amplifier and the central processing unit.

In a preferred embodiment of the present invention, the first PIN-TIA optical receiver and the second PIN-TIA optical receiver are of the following types: DSC-R401HG or DSC-R406-20-32 GHz.

In a preferred embodiment of the present invention, the types of the first limiting amplifier and the second limiting amplifier are: MAX3747AEUB or ONET4201 PARGTR.

In a preferred embodiment of the present invention, the first CDR circuit and the second CDR circuit have the following models: TL062ACDR or TL064 CDR.

The utility model has the advantages that:

the utility model discloses with two optical module receiving circuit organic integration in an optical module, realized just can accomplish the receipt of two way different passageway light signals simultaneously at a two optical modules of receiving, its modular structure is simpler simultaneously, can effectively reduce cost when improve the quantity of the received signal of the collection system of the equal consumption of the equal port of equal size etc. by one time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further explained below.

Referring to fig. 1, the present invention provides a two-way received optical communication module, which includes a central processing unit 100, a first PIN-TIA optical receiver 210, a first limiting amplifier 310, a first CDR circuit 410, a second PIN-TIA optical receiver 220, a second limiting amplifier 320, and a second CDR circuit 420.

The central processing unit 100, which can be plugged with the backplane of the communication transmission platform, can interact data signals and control signals with the intelligent network pipe card.

The central processor 100 is further connected to the first PIN-TIA optical receiver 210, the first limiting amplifier 310, the first CDR circuit 410, the second PIN-TIA optical receiver 220, the second limiting amplifier 320, and the second CDR circuit 420, and is configured to control operations of the above components.

The first PIN-TIA optical receiver 210 is connected to one of the optical signal input terminals, and is configured to convert an input optical signal into a low-noise electrical signal and amplify the electrical signal to form an analog signal.

And a first limiting amplifier 310 connected to the first PIN-TIA optical receiver 210, for converting the analog signals with different amplitudes output by the first PIN-TIA optical receiver 210 into digital signals with a constant amplitude.

And a first CDR circuit 410, which is respectively connected to the first limiting amplifier 310 and one of the optical signal output terminals, and is configured to perform clock data recovery processing on the digital signal converted by the first limiting amplifier 310 to form an electrical signal, and output the electrical signal through the optical signal output terminal.

A second PIN-TIA optical receiver 220 connected to another optical signal input terminal for converting the input optical signal into a low-noise electrical signal and amplifying the electrical signal to form an analog signal

A second limiting amplifier 320 connected to the second PIN-TIA optical receiver 220 for converting the analog signals with different amplitudes output by the second PIN-TIA optical receiver 220 into digital signals with equal amplitudes

And a second CDR circuit 420, which is respectively connected to the second limiting amplifier 320 and another optical signal output terminal, and is configured to perform clock data recovery processing on the digital signal converted by the second limiting amplifier 320 to form an electrical signal, and output the electrical signal through the optical signal output terminal.

Thus, through the implementation of the above scheme, the first PIN-TIA optical receiver 210, the first limiting amplifier 310 and the first CDR circuit 410 can constitute one optical communication structure, and the second PIN-TIA optical receiver 220, the second limiting amplifier 320 and the second CDR circuit 420 can be connected to constitute one optical communication structure, and the two optical communication structures can work independently.

In addition, through the connection cooperation of the two optical communication structures, the optical communication device can be directly integrated on a circuit board and then packaged through a shell to form the optical communication device, and the installation and the use are very simple.

The first PIN-TIA optical receiver 210, the first limiting amplifier 310, the first CDR circuit 410, the second PIN-TIA optical receiver 220, the second limiting amplifier 320, and the second CDR circuit 420 are all conventional structures, such as:

the models of the first PIN-TIA optical receiver 210 and the second PIN-TIA optical receiver 220 may be specifically: DSC-R401HG or DSC-R406-20-32 GHz;

the models of the first limiting amplifier 310 and the second limiting amplifier 320 may be specifically: MAX3747AEUB or ONET4201 PARGTR;

the models of the first CDR circuit 410 and the second CDR circuit 420 may specifically be: TL062ACDR or TL064 CDR.

The present application is directed to the application of the above-described devices directly to optical communication modules and is not a modification thereof.

Based on above-mentioned optical communication module, this application still provides an optimized structure, and this application still includes first control switch and second control switch.

The first control switch is respectively connected with the first PIN-TIA optical receiver 210, the second PIN-TIA optical receiver 220, the two optical signal input ends and the central processor 100, the second control switch is respectively connected with the first CDR circuit 410, the second CDR circuit 420, the two optical signal output ends and the central processor 100, and when the dual-channel transceiver is in practical use, the central processor 100 controls the first control switch and the second control switch to work, so that the switching between a dual-channel transceiver mode and a single-channel transceiver mode can be realized.

In addition, when one of the communication structures has damaged parts, the dual-path receiving and sending mode can be switched to the single-path receiving and sending mode, and the use is very convenient.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a light communication module is received to double-circuit, light communication module is received to double-circuit includes central processing unit, central processing unit pegs graft with the backplate of communication transmission platform, its characterized in that, light communication module is received to double-circuit still includes:

2. A two-way received optical communication module as claimed in claim 1, wherein the first PIN-TIA optical receiver and the second PIN-TIA optical receiver are of the type: DSC-R401HG or DSC-R406-20-32 GHz.

3. A two-way optical communication module as claimed in claim 1, wherein the first limiting amplifier and the second limiting amplifier are of the type: MAX3747AEUB or ONET4201 PARGTR.

4. A two-way optical communication module as claimed in claim 1, wherein the first and second CDR circuits are of the type: TL062ACDR or TL064 CDR.