CN203734676U - CDR-power-supplying SFP+ light module - Google Patents
CDR-power-supplying SFP+ light module Download PDFInfo
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- CN203734676U CN203734676U CN201420110328.4U CN201420110328U CN203734676U CN 203734676 U CN203734676 U CN 203734676U CN 201420110328 U CN201420110328 U CN 201420110328U CN 203734676 U CN203734676 U CN 203734676U
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- 238000011084 recovery Methods 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
The utility model discloses a CDR-power-supplying SFP+ light module which includes a microprocessor. The microprocessor is electrically connected with a receiving channel unit and a transmitting channel unit. The transmitting channel unit includes a balancer, a clock data recovery module (CDR), a laser driver and a laser, which are sequentially connected. The receiving channel unit includes a light receiving part, an amplifier and a clock data recovery module (CDR), which are connected sequentially. The CDRs of the transmitting channel unit and the receiving channel unit are electrically connected with a DC-DC module. The CDR-power-supplying SFP+ light module adopts the DC-DC module to supply power to the CDRs of the SFP+ light module. Different from an LDO power supplying method adopted at present, the DC-DC method is adopted so that the power utilization efficiency can be improved significantly and under the same condition, the total power consumption of the modules is reduced.
Description
Technical field
The utility model relates to optical module field, particularly a kind of CDR power supply SFP+ optical module.
Background technology
At present in SFP+ optical module, the clock and data recovery unit CDR of transceiving device mainly contains following function: for the normal work of each functional circuit of system receiving terminal provides synchronised clock, and data are carried out timing judgement to received signal, suppress noise and shake, after recovering stable data-signal so that subsequent treatment and continue transmission.Therefore the stability of CDR is directly connected to quality and the transmission range of module receiving and transmitting signal, in order to obtain minimum shake, the modes that adopt LDO of CDR power supply at present more, but LDO comes with some shortcomings: efficiency is not high, the poor 100mV that is about of input voltage and output voltage, when output current increases, power dissipation also will increase.
Utility model content
The purpose of this utility model is to overcome existing above-mentioned deficiency in prior art, provides a kind of and improve power utilization efficiency, reduces the CDR power supply SFP+ optical module of module total power consumption.
In order to realize foregoing invention object, the technical solution adopted in the utility model is:
A kind of CDR power supply SFP+ optical module, comprise microprocessor, described microprocessor is electrically connected with receive path unit and transmission channel unit, described transmission channel unit comprises equalizer, clock and data recovery module CDR, laser driver and the laser connecting successively, described receive path unit comprises light receiving piece, amplifier and the clock and data recovery module CDR connecting successively, and the clock and data recovery module CDR of described transmission channel unit and receive path unit is electrically connected to DC-DC module.
Preferably, described amplifier is linear amplifier.
Preferably, described laser is modulated laser.
Preferably, described light receiving piece is avalanche photodide APD.
compared with prior art, the beneficial effects of the utility model:
The utility model adopts DC-DC module to the clock and data recovery module CDR power supply in SFP+ optical module, the supply power mode that is different from current employing LDO, adopt DC-DC mode can improve greatly power utilization efficiency, under square one, reduced the total power consumption of module.
accompanying drawing explanation:
Fig. 1 is the utility model CDR power supply SFP+ optical module circuit block diagram.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the utility model only limits to following embodiment, all technology realizing based on the utility model content all belong to scope of the present utility model.
CDR power supply SFP+ optical module as shown in Figure 1, comprise microprocessor 1, described microprocessor 1 is electrically connected with receive path unit 2 and transmission channel unit 3, described transmission channel unit 2 comprises equalizer, clock and data recovery module CDR, laser driver and the laser connecting successively, and described laser is modulated laser.Described receive path unit 3 comprises light receiving piece (avalanche photodide APD), amplifier and the clock and data recovery module CDR connecting successively, and described amplifier is linear amplifier.The clock and data recovery module CDR of described transmission channel unit 2 and receive path unit 3 is electrically connected to DC-DC module.
The utility model adopts DC-DC module to the clock and data recovery module CDR power supply in SFP+ module, is different from the supply power mode of current LDO, adopts DC-DC mode can improve greatly power utilization efficiency, under square one, has reduced the total power consumption of module.
By reference to the accompanying drawings embodiment of the present utility model is had been described in detail above, but the utility model is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim that does not depart from the application, those skilled in the art can make various modifications or remodeling.
Claims (4)
1. CDR power supply SFP+ optical module, comprise microprocessor, described microprocessor is electrically connected with receive path unit and transmission channel unit, described transmission channel unit comprises equalizer, clock and data recovery module CDR, laser driver and the laser connecting successively, described receive path unit comprises light receiving piece, amplifier and the clock and data recovery module CDR connecting successively, it is characterized in that, the clock and data recovery module CDR of described transmission channel unit and receive path unit is electrically connected to DC-DC module.
2. CDR power supply SFP+ optical module according to claim 1, is characterized in that, described amplifier is linear amplifier.
3. CDR power supply SFP+ optical module according to claim 1, is characterized in that, described laser is modulated laser.
4. CDR power supply SFP+ optical module according to claim 1, is characterized in that, described light receiving piece is avalanche photodide APD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110328.4U CN203734676U (en) | 2014-03-12 | 2014-03-12 | CDR-power-supplying SFP+ light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110328.4U CN203734676U (en) | 2014-03-12 | 2014-03-12 | CDR-power-supplying SFP+ light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203734676U true CN203734676U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110328.4U Expired - Lifetime CN203734676U (en) | 2014-03-12 | 2014-03-12 | CDR-power-supplying SFP+ light module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203734676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202092A (en) * | 2014-09-18 | 2014-12-10 | 长芯盛（武汉）科技有限公司 | Receiving, transmitting and controlling three-in-one chip applicable to SFP (small form-factor pluggable) + high-speed photoelectric communication |
-
2014
- 2014-03-12 CN CN201420110328.4U patent/CN203734676U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202092A (en) * | 2014-09-18 | 2014-12-10 | 长芯盛（武汉）科技有限公司 | Receiving, transmitting and controlling three-in-one chip applicable to SFP (small form-factor pluggable) + high-speed photoelectric communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |