CN203193643U - Optically-controlled digital gain automatic-control optical receiver - Google Patents
Optically-controlled digital gain automatic-control optical receiver Download PDFInfo
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- CN203193643U CN203193643U CN 201320137630 CN201320137630U CN203193643U CN 203193643 U CN203193643 U CN 203193643U CN 201320137630 CN201320137630 CN 201320137630 CN 201320137630 U CN201320137630 U CN 201320137630U CN 203193643 U CN203193643 U CN 203193643U
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Abstract
The utility model relates to an optically-controlled digital gain automatic-control optical receiver comprising a photoelectric conversion circuit, an amplifier group, an automatic gain control circuit, a digital attenuation control circuit, a digital equalization circuit, a power amplification circuit, an optical detection circuit, a CPU controller and an electrically-tuned attenuator. Optical signals are sent to the photoelectric conversion circuit by an optical fiber and converted into electric signals; the electric signals are output to the electrically-tuned attenuator sequentially through a first amplifier, the automatic gain control circuit, a second amplifier, the digital attenuation control circuit, the digital equalization circuit, a third amplifier and the power amplification circuit; and after that, one channel of signals is input to the CPU controller through the optical detection circuit, and the other channel of signals is output via two output ports. The CPU controller monitors the automatic gain control circuit, the digital attenuation control circuit and the digital equalization circuit, receives a command of a keyboard and sends a processing result to a digital display unit, a voice alarm and a function indicating lamp. Automatic adjustment is realized, and the optically-controlled digital gain automatic-control optical receiver has the advantages of high index, high level, low distortion and low power consumption.
Description
Technical field
The utility model relates to a kind of optical receiver, particularly the Gain Automatic control optical receiver of a kind of light-operated number.
Background technology
In the EPON based on Ethernet, require light-receiving input optical power for-7dBm～-dynamic range of 1dBm, the output signal level of optical receiver changes and is not more than 2dB, therefore requires optical receiver to have enough wide gain control range; Existing receiver exists problems such as range of receiving is little, power does not have demonstration, output level is uncontrollable, distortion is high, plug-in unit is too many, construction inconvenient debugging.
Summary of the invention
The utility model is the problem that exists at existing receiver, has proposed the Gain Automatic control optical receiver of a kind of light-operated number, and parameter is adjusted in CPU control automatically, improves the performance of entire product.
The technical solution of the utility model is: the Gain Automatic control optical receiver of a kind of light-operated number, comprise photoelectric switching circuit, first amplifier, automatic gain control circuit, second amplifier, the numeral attenuation control circuit, digital equalization circuits, the 3rd amplifier, power amplification circuit, optical detection circuit, cpu controller, transponder, keyboard, digital display unit, audible alarm, functional indicator light, after electrically controlled attenuator, optical fiber are sent into light signal photoelectric switching circuit and are converted to the signal of telecommunication, successively through first amplifier, automatic gain control circuit, second amplifier, the numeral attenuation control circuit, digital equalization circuits, the 3rd amplifier, after power amplification circuit outputs to electrically controlled attenuator, one the tunnel through optical detection circuit input cpu controller, two delivery outlets of leading up to are exported optical-electrical converter, the automatic gain control circuit input signal is to cpu controller, and cpu controller outputs a control signal to automatic gain control circuit, the numeral attenuation control circuit, digital equalization circuits, keyboard input parameter instructs cpu controller, and the cpu controller result is sent digital display unit, audible alarm, functional indicator light.
Described three amplifier models are ACA2407E, and the cpu chip model is Pe4304 in the described cpu controller.
The beneficial effects of the utility model are: the Gain Automatic control optical receiver of the light-operated number of the utility model, adopted the CPU control technology, in real time random acquisition and the various parameters of detection; Adopt light-operated AGC treatment technology, improved the reliability of complete machine; CPU is connected with keyboard, realizes various parameter keyboard regulation technologies, convenient debugging construction; Unique sound and light of alarm can judge fast and accurately; Ultra low power reception-10～+ 2dBm; High target, high level, low distortion, low-power consumption.
Description of drawings
Fig. 1 is the Gain Automatic control optical receiver of the light-operated number of the utility model structural representation block diagram.
Embodiment
The Gain Automatic control optical receiver of light-operated number structural representation block diagram comprises photoelectric switching circuit 1, the first amplifier 2 as shown in Figure 1, automatic gain control circuit 3, the second amplifiers 4, digital attenuation control circuit 5, digital equalization circuits 6, the three amplifiers 7, power amplification circuit 8, optical detection circuit 9, cpu controller 10, transponder 11, keyboard 12, digital display unit 13, audible alarm 14, functional indicator light 15, electrically controlled attenuator 16.
After optical fiber is sent into light signal photoelectric switching circuit 1 and is converted to the signal of telecommunication, successively through first amplifier 2, automatic gain control circuit 3, second amplifier 4, numeral attenuation control circuit 5, digital equalization circuits 6, the 3rd amplifier 7, power amplification circuit 8 outputs to electrically controlled attenuator 16, one the tunnel through behind the optical detection circuit 9 input cpu controllers 10, two delivery outlets of leading up to are exported, optical-electrical converter 1, automatic gain control circuit 3 input signals are to cpu controller 10, cpu controller 10 outputs control to automatic gain control circuit 3, numeral attenuation control circuit 5, digital equalization circuits 6, keyboard 12 input parameters instruct cpu controller 10, cpu controller 10 results are sent digital display unit 13, audible alarm 14, functional indicator light 15, cpu controller 10 links to each other with other equipment by transponder 11.
After optical fiber inserts, optical-electrical converter 1 converts the luminous power that receives to radio-frequency voltage, enter automatic gain control circuit 3 through first order amplifier 2, gain control after send into second level amplifier 4, automatic gain control circuit 3 connects cpu controller 10 simultaneously, and monitored in real time by cpu controller 10, after 4 amplifications of second level amplifier, enter digital attenuation control circuit 5 and digital equalization circuits 6 more respectively, realize the control of gain and the selection of the way of output respectively, the output after the decay monitoring by third level amplifier 7 and power amplification circuit 8 at last.
Described three amplifier models are ACA2407E, and the cpu chip model is Pe4304 in the described cpu controller 10.
Described cpu controller 10 is also being monitored digital attenuation control circuit 5 and digital equalization circuits 6 simultaneously, and be connected with keyboard, digital demonstration, alarm and functional indicator light, realize CPU control in real time and random acquisition and detect various parameters, arranging of various parameters all can be adopted the keyboard debugging, the debugging easy construction, unique sound and light alarm can judge rapidly accurately, adopts digital the demonstration, can accurately show various parameters.
Claims (2)
1. Gain Automatic control optical receiver of light-operated number, it is characterized in that, comprise photoelectric switching circuit, first amplifier, automatic gain control circuit, second amplifier, the numeral attenuation control circuit, digital equalization circuits, the 3rd amplifier, power amplification circuit, optical detection circuit, cpu controller, keyboard, digital display unit, audible alarm, functional indicator light, after electrically controlled attenuator, optical fiber are sent into light signal photoelectric switching circuit and are converted to the signal of telecommunication, successively through first amplifier, automatic gain control circuit, second amplifier, the numeral attenuation control circuit, digital equalization circuits, the 3rd amplifier, after power amplification circuit outputs to electrically controlled attenuator, one the tunnel through optical detection circuit input cpu controller, two delivery outlets of leading up to are exported optical-electrical converter, the automatic gain control circuit input signal is to cpu controller, and cpu controller outputs a control signal to automatic gain control circuit, the numeral attenuation control circuit, digital equalization circuits, keyboard input parameter instructs cpu controller, and the cpu controller result is sent digital display unit, audible alarm, functional indicator light.
2. according to the Gain Automatic control optical receiver of the described light-operated number of claim 1, it is characterized in that described three amplifier models are ACA2407E, the cpu chip model is Pe4304 in the described cpu controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320137630 CN203193643U (en) | 2013-03-25 | 2013-03-25 | Optically-controlled digital gain automatic-control optical receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320137630 CN203193643U (en) | 2013-03-25 | 2013-03-25 | Optically-controlled digital gain automatic-control optical receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193643U true CN203193643U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320137630 Expired - Fee Related CN203193643U (en) | 2013-03-25 | 2013-03-25 | Optically-controlled digital gain automatic-control optical receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506244A (en) * | 2014-12-25 | 2015-04-08 | 四川璧虹广播电视新技术有限公司 | AGC (automatic gain control) control circuit for management type household optical receiving machine |
| CN109412702A (en) * | 2018-12-20 | 2019-03-01 | 四川璧虹广播电视新技术有限公司 | A kind of satellite optical receiver circuit with three-level enlarged structure |
-
2013
- 2013-03-25 CN CN 201320137630 patent/CN203193643U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506244A (en) * | 2014-12-25 | 2015-04-08 | 四川璧虹广播电视新技术有限公司 | AGC (automatic gain control) control circuit for management type household optical receiving machine |
| CN104506244B (en) * | 2014-12-25 | 2018-04-03 | 四川璧虹广播电视新技术有限公司 | A kind of AGC control circuits of management type family expenses photoreceiver |
| CN109412702A (en) * | 2018-12-20 | 2019-03-01 | 四川璧虹广播电视新技术有限公司 | A kind of satellite optical receiver circuit with three-level enlarged structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20190325 |