CN202444492U - GBIC (Giga Bitrate Interface Converter) optical module circuit - Google Patents
GBIC (Giga Bitrate Interface Converter) optical module circuit Download PDFInfo
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- CN202444492U CN202444492U CN2012200826107U CN201220082610U CN202444492U CN 202444492 U CN202444492 U CN 202444492U CN 2012200826107 U CN2012200826107 U CN 2012200826107U CN 201220082610 U CN201220082610 U CN 201220082610U CN 202444492 U CN202444492 U CN 202444492U
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Abstract
The utility model discloses a GBIC (Giga Bitrate Interface Converter) optical module circuit, which comprises a connector, a laser drive and safety control circuit, an amplitude limiting amplifier and an LOS signal detection circuit, a power management and LDO (Low DropOut) module, and a bidirectional optical subassembly (BOSA) (or a transmitter optical subassembly (TOSA) and a receiver optical subassembly (ROSA)), wherein the power management and LDO module comprises a voltage stabilizing circuit capable of stabilizing a 5V voltage to a 3.3V voltage, the ROSA can be connected with an APD (Avalanche Photo Diode) high-voltage control circuit for producing a high voltage required by the APD photodiode when the ROSA is an APD-TIA, an avalanche voltage of the APD-TIA is subjected to temperature compensation through a thermistor, and the aim that the receiving sensitivity is maintained stable in the temperature exchange range is achieved. The GBIC optical module circuit is an optical module design scheme with the advantages of wide application range, good stability, high service life and capability of being compatible with a 3.3V/5.5V power supply.
Description
Technical field
The utility model relates to optical communication to be received, and relates in particular to a kind of GBIC optical module circuit.
Background technology
Along with the development of optical fiber communication, optical transmission system is had higher requirement to optical module.Optical module gradually to can plug, low-power consumption, low-cost direction develop.GigaBit Interface Converter GBIC (Giga Bitrate Interface Converter) can hot plug interface features, determined the flexibility that equipment is selected module.The user can be according to concrete application demand; Light mouth or the electricity mouth of expanding shortwave, long wave, myriametric wave freely come configuration device as transmission medium; Thereby make the port oepration at full load; The expensive optical port of avoiding the optical module with welding method assembling to cause because be difficult for changing is idle, so it occupies bigger market share on market.
In the design of existing GBIC in the industry, generally all be single 3.3V or single 5V power supply, can only use fixing TIA (Trans-Impedance Amplifier, trans-impedance amplifier), compatible bad; And short distance, long distance and extra long distance all need use the different circuits structure to satisfy transmission demand, make circuit of a great variety, do not have a kind of universal circuit that can satisfy various transmission range demands.Along with the develop rapidly of optical fiber communication with popularize, more and more broader to the range of application of optical module, performance and life requirements are also increasingly high, client's diversification requirement that general GBIC optical module is satisfied not.
The utility model content
The purpose of the utility model provides a kind of GBIC optical module circuit; It is strict to solve the existing power requirement of existing GBIC optical module circuit; Problems such as poor compatibility provide a kind of of many uses, high and the optical module design circuit that can compatible 3.3V/5V power supply of good stability, life-span.
To achieve these goals; The utility model provides a kind of GBIC optical module circuit; Comprise optical secondary module, connector, Laser Drive and safety control circuit, limiting amplifier and LOS signal deteching circuit; Said Laser Drive links to each other with connector through peripheral coupling circuit respectively with the LOS signal deteching circuit with safety control circuit and said limiting amplifier, and said connector is the 20pin needle connector, wherein; Said GBIC optical module circuit also comprises power management and LDO module; Said power management links to each other with said connector with the LDO module, and said power management and LDO module comprise voltage stabilizing circuit, and said voltage stabilizing circuit can be with the voltage stabilizing of 5V voltage to 3.3V.
Wherein, said optical secondary module comprises the bi-directional light transmissions pass assembly separately, and said bi-directional light transmissions pass assembly one end connects said Laser Drive and safety control circuit, and the other end connects said limiting amplifier and LOS signal deteching circuit; Or said optical secondary module comprises light transmission interface assembly and receiving interface of optical assembly; Said smooth transmission interface assembly links to each other with safety control circuit with said Laser Drive, and said receiving interface of optical assembly links to each other with the LOS signal deteching circuit with said limiting amplifier.
Wherein, Said receiving interface of optical assembly is PIN-TIA receiving interface of optical assembly or APD-TIA receiving interface of optical assembly; When said receiving interface of optical assembly is APD-TIA receiving interface of optical assembly; Said GBIC optical module circuit also comprises the APD high-voltage control circuit, and said APD high-voltage control circuit is connected with said APD-TIA receiving interface of optical assembly, and said APD high-voltage control circuit comprises thermistor.
Preferably, said smooth transmission interface assembly is any in Fabry one pool sieve resonance-cavity laser, distributed feedback laser, vertical cavity surface emitting laser, the coarse wavelength division multiplexer device.
Wherein, said GBIC optical module circuit also comprises: I2C bus that links to each other with said connector and EEPROM module.
Compared with prior art, the utlity model has following beneficial effect:
1), power management partly adopt voltage stabilizing circuit with the voltage stabilizing of 5V voltage to 3.3V, make that module can compatible 3.3V and 5V power supply;
2), when said receiving interface of optical assembly is APD-TIA receiving interface of optical assembly; Be connected with the APD high-voltage control circuit on the receiving interface of optical assembly; The APD high-voltage control circuit produces the needed high pressure of APD photodiode; Come the avalanche voltage of APD-TIA is carried out temperature-compensating through the temperature variant resistance value of thermistor being converted to voltage, reach receiving sensitivity and in range of temperature, keep stable purpose;
3), because the light sending assembly can be devices such as FP, DFB, VCSEL, CWDM; Optical fiber receive module can be PIN-TIA or APD-TIA; Device is selected flexibly, makes the utility model circuit design can satisfy short distance, long distance and over distance transmission requirement.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings:
Fig. 1 is the utility model embodiment one GBIC optical module electrical block diagram;
Fig. 2 is the utility model embodiment two GBIC optical module electrical block diagrams;
Fig. 3 is the utility model embodiment three GBIC optical module electrical block diagrams.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment GBIC optical module circuit comprises 20pin needle connector, power management and LDO module, Laser Drive and the safety control circuit, limiting amplifier and the LOS signal deteching circuit that satisfy GBIC Specification Rev. 5.5 standards and IEEE 802.3z Megabit Eternity 1000BASE-LX normalized definition, and optical secondary module; Wherein, LDO is a low pressure difference linear voltage regulator, and its English full name is: Low DropOut linear regulator.Said Laser Drive links to each other with connector through peripheral coupling circuit respectively with the LOS signal deteching circuit with safety control circuit and said limiting amplifier; Said power management links to each other with said connector with the LDO module, and said power management and LDO module are carried out Filtering Processing to power supply, reduces interference and noise on the power supply; This module comprises voltage stabilizing circuit; Said voltage stabilizing circuit can be with the voltage stabilizing of 5V voltage to 3.3V, and during enforcement, voltage stabilizing circuit can be for arriving the voltage stabilizing of 5V voltage the low pressure differential voltage stabilizing chip of 3.3V; Making the GBIC optical module can freely select operating voltage is the TIA of 3.3V or 5V, makes that module can compatible 3.3V and 5V power-supply device.Said GBIC optical module circuit also comprises the I2C bus that links to each other with the 20pin needle connector, and the utility model embodiment GBIC optical module circuit communicates through I2C interface and host computer, and said 20pin needle connector is also referred to as 20 pin needle connectors.
Wherein, said optical secondary module can comprise bi-directional light transmissions pass assembly BOSA (Bi-direction Optic Sub-assembly) separately, referring to Fig. 1.Said optical secondary module also can comprise light transmission interface assembly TOSA (Transmitter Optical Sub-Assembly) and receiving interface of optical assembly ROSA (Receiver Optical Sub-Assembly), referring to Fig. 2, Fig. 3.When optical secondary module was bi-directional light transmissions pass assembly BOSA, said bi-directional light transmissions pass assembly one end connected said Laser Drive and safety control circuit, and the other end connects said limiting amplifier and LOS signal deteching circuit.Bi-directional light transmissions pass assembly BOSA is integrated in an assembly the inside with light transmission interface assembly TOSA and receiving interface of optical assembly ROSA exactly, in optical fiber communication, only needs an optical fiber to transmit.And when optical secondary module comprises light transmission interface assembly TOSA and receiving interface of optical assembly ROSA; Said smooth transmission interface assembly links to each other with safety control circuit with said Laser Drive, and said receiving interface of optical assembly links to each other with the LOS signal deteching circuit with said limiting amplifier.
For signal receiving end; The utility model is supported PIN-TIA and APD-TIA dual mode; Be that said receiving interface of optical assembly can be PIN-TIA receiving interface of optical assembly or APD-TIA receiving interface of optical assembly; When said receiving interface of optical assembly was APD-TIA receiving interface of optical assembly, said GBIC optical module circuit also comprised the APD high-voltage control circuit, referring to Fig. 3; Said APD high-voltage control circuit is connected with said APD-TIA receiving interface of optical assembly, and said APD high-voltage control circuit comprises thermistor.When adopting the PIN-TIA mode, do not need APD high voltage control unit.Need adopt APD-TIA during the length Distance Transmission; When adopting the APD-TIA mode; Need produce the needed high pressure of APD photodiode by APD high voltage control unit; Come the avalanche voltage of APD-TIA is carried out temperature-compensating through the temperature variant resistance value of thermistor being converted to voltage, reach receiving sensitivity and in range of temperature, keep stable purpose.
In application; The light sending assembly can be Fabry one pool sieve resonance-cavity laser FP (Fabry-Perot), distributed feedback laser DFB (Distributed Feed Back), vertical cavity surface emitting laser VCSEL (Vertical Cavity Surface Emitting Laser), coarse wavelength division multiplexer device CWDM devices such as (Coarse wavelength division multiplexing), and optical fiber receive module can be PIN-TIA and APD-TIA.Because the flexibility that device is selected makes the utility model circuit design can satisfy short distance, long distance and over distance transmission requirement.
Among the utility model embodiment; Laser Drive and safety control circuit receive from the next high-speed electrical signals of host computer; The laser that drives light transmission interface assembly TOSA is luminous, realizes the conversion of the signal of telecommunication to light signal, and the current monitoring pin is kept watch on the back facet current of optical transmission module interface module TOSA; Carry out the control of APC (Automatic Power Control) automated power, realize the stable of transmitting optical power; When debugging module goes out luminous power and extinction ratio; The technology that has adopted automated software to carry out the automatic power taking resistance according to device parameters and module index, and the operating current of strict control laser make laser works in optimum Working; Module performance is more stable, and the life-span is longer.It is luminous still not luminous that host computer can turn-off control signal (TX_DIS) control laser through the Laser Drive in Laser Drive and the safety control circuit.When Laser Drive and laser partly break down, will give host computer through 20pin needle connector electric interface unit output laser fault indication signal (TX_Fault).PIN photodiode among the receiving interface of optical assembly ROSA converts the light signal that receives to high-speed electrical signals; Amplify to the limiting amplifier part through trans-impedance amplifier TIA in the receiving interface of optical assembly; Limiting amplifier amplifies the signal of telecommunication of the standard of back output, gives host computer through 20pin needle connector electrical interface.Also can export unglazed index signal (RX_LOS) when limiting amplifier and LOS signal deteching circuit receive no light signal and give host computer, and can turn-off module receipts light through 20pin needle connector electric interface unit.
The utility model adopts wide power, get the technology that debugging resistance and device can freely dispose automatically designs the GBIC optical module, be applicable to GBIC SMF MMF short distance, grow distance and extra long distance application.The utility model design not only supports the diversification of GBIC optical module wide power, various transmission ranges to use, and also improves the stability and prolongation working life of module service behaviour effectively.
Laser Drive in the utility model and safety control circuit, and limiting amplifier and LOS signal deteching circuit can lay respectively at laser driving chip and amplitude limit amplifies in two main cores of integrated chip; Also can be integrated in the master chip; When adopting single chip solution design GBIC optical module to make, peripheral circuit is simple, and number of devices is less; Cost is lower, and the more conventional GBIC optical module of overall optical module caloric value is little.
GBIC optical module circuit among the utility model embodiment is applicable to that the CWDM (Coarse wavelength division multiplexing, coarse wavelength division multiplexer) of GBIC single mode, multimode and long distance uses.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. GBIC optical module circuit; Comprise optical secondary module, connector, Laser Drive and safety control circuit, limiting amplifier and LOS signal deteching circuit; Said Laser Drive links to each other with connector through peripheral coupling circuit respectively with the LOS signal deteching circuit with safety control circuit and said limiting amplifier; It is characterized in that said GBIC optical module circuit also comprises power management and LDO module, said power management links to each other with said connector with the LDO module; Said power management and LDO module comprise voltage stabilizing circuit, and said voltage stabilizing circuit can be with the voltage stabilizing of 5V voltage to 3.3V.
2. GBIC optical module circuit as claimed in claim 1; It is characterized in that; Said optical secondary module comprises: the bi-directional light transmissions pass assembly, and said bi-directional light transmissions pass assembly one end connects said Laser Drive and safety control circuit, and the other end connects said limiting amplifier and LOS signal deteching circuit.
3. GBIC optical module circuit as claimed in claim 1 is characterized in that said optical secondary module comprises: light transmission interface assembly and receiving interface of optical assembly; Said smooth transmission interface assembly links to each other with safety control circuit with said Laser Drive, and said receiving interface of optical assembly links to each other with the LOS signal deteching circuit with said limiting amplifier.
4. GBIC optical module circuit as claimed in claim 3 is characterized in that, said receiving interface of optical assembly is PIN-TIA receiving interface of optical assembly or APD-TIA receiving interface of optical assembly.
5. GBIC optical module circuit as claimed in claim 4; It is characterized in that; When said receiving interface of optical assembly is APD-TIA receiving interface of optical assembly; Said GBIC optical module circuit also comprises the APD high-voltage control circuit, and said APD high-voltage control circuit is connected with said APD-TIA receiving interface of optical assembly, and said APD high-voltage control circuit comprises thermistor.
6. like claim 4 or 5 described GBIC optical module circuit, it is characterized in that said smooth transmission interface assembly is any in Fabry one pool sieve resonance-cavity laser, distributed feedback laser, vertical cavity surface emitting laser, the coarse wavelength division multiplexer device.
7. like each described GBIC optical module circuit in the claim 1 to 5, it is characterized in that said GBIC optical module circuit also comprises: I2C bus that links to each other with said connector and EEPROM module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200826107U CN202444492U (en) | 2012-03-07 | 2012-03-07 | GBIC (Giga Bitrate Interface Converter) optical module circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200826107U CN202444492U (en) | 2012-03-07 | 2012-03-07 | GBIC (Giga Bitrate Interface Converter) optical module circuit |
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| Publication Number | Publication Date |
|---|---|
| CN202444492U true CN202444492U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200826107U Expired - Lifetime CN202444492U (en) | 2012-03-07 | 2012-03-07 | GBIC (Giga Bitrate Interface Converter) optical module circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840884A (en) * | 2014-03-27 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Chip applied to GPON optical module and BOB |
| CN104868954A (en) * | 2015-06-05 | 2015-08-26 | 成都新易盛通信技术股份有限公司 | Optical module receiver and 1*9 optical module |
| CN106407107A (en) * | 2016-08-31 | 2017-02-15 | 无锡市电子仪表工业有限公司 | Auxiliary software debugging method of universal type optical module |
| CN106849890A (en) * | 2016-12-26 | 2017-06-13 | 北京航天易联科技发展有限公司 | A kind of optical fiber security signal collection conditioning amplifying circuit |
-
2012
- 2012-03-07 CN CN2012200826107U patent/CN202444492U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840884A (en) * | 2014-03-27 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Chip applied to GPON optical module and BOB |
| CN104868954A (en) * | 2015-06-05 | 2015-08-26 | 成都新易盛通信技术股份有限公司 | Optical module receiver and 1*9 optical module |
| CN106407107A (en) * | 2016-08-31 | 2017-02-15 | 无锡市电子仪表工业有限公司 | Auxiliary software debugging method of universal type optical module |
| CN106849890A (en) * | 2016-12-26 | 2017-06-13 | 北京航天易联科技发展有限公司 | A kind of optical fiber security signal collection conditioning amplifying circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |