CN204349927U - A kind of differential signal converting system - Google Patents
A kind of differential signal converting system Download PDFInfo
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- CN204349927U CN204349927U CN201420815818.4U CN201420815818U CN204349927U CN 204349927 U CN204349927 U CN 204349927U CN 201420815818 U CN201420815818 U CN 201420815818U CN 204349927 U CN204349927 U CN 204349927U
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Abstract
The utility model belongs to signal processing technology field, particularly relate to a kind of differential signal converting system, it is characterized in that: comprise single-ended signal slip sub-signal module, differential signal receiver module, described single-ended signal slip sub-signal module comprises amplifier U1, amplifier U2, amplifier U3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C1, terminal TP1, terminal TP2, terminal TP3, one end of the output contact resistance R8 of described amplifier U3, one end of resistance R9, one end of resistance R11, described differential signal receiver module comprises chip U4, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, crystal oscillator Y1, socket P1, pin 8 and pin 22 all ground connection of described chip U2.
Description
Technical field
The utility model belongs to signal processing technology field, particularly relates to a kind of differential signal converting system.
Background technology
Signal, according to the difference of transmission means, can be divided into single-ended signal and differential signal.Single-ended signal refers to that signal has a reference edge and a signal end to form, and reference edge is held with being generally; Differential signal to refer on these two transmission lines all signal transmissions, and the amplitude of these two signals is equal, and phase place is contrary.Differential signal has the advantage that signal sensitivity is high, antijamming capability relies on by force and not virtual earth stability.In conventional differential signal translating system, adopt conversion chip, and with the baud rate communication determined, be difficult to meet differential signal and amplify and the application demand of uncertain baud rate.
Summary of the invention
The utility model provides a kind of differential signal converting system, amplifies and the problem of the application demand of uncertain baud rate to solve differential signal in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of differential signal converting system, it is characterized in that: comprise single-ended signal slip sub-signal module, differential signal receiver module, described single-ended signal slip sub-signal module comprises amplifier U1, amplifier U2, amplifier U3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C1, terminal TP1, terminal TP2, the positive voltage input of terminal TP3, described amplifier U1 connects the positive voltage input of amplifier U2, the positive voltage input of amplifier U3 and all connect power supply+5V voltage, its negative voltage input connects the negative voltage input of amplifier U2, the negative voltage input of amplifier U3 and all connect power supply-5V voltage, one end of its positive input terminal contact resistance R1, its negative input end connects one end of electric capacity C1, one end of resistance R2, one end of resistance R11, its output connects one end of electric capacity C1, one end of resistance R3, one end of the positive input terminal contact resistance R5 of amplifier U2, one end of its negative input end contact resistance R3, one end of resistance R4, one end of its output contact resistance R4, one end of resistance R6, one end of resistance R10, one end of the positive input terminal contact resistance R7 of amplifier U3, one end of its negative input end contact resistance R8, one end of resistance R10, one end of its output contact resistance R8, one end of resistance R9, one end of resistance R11, one end of terminal TP1 contact resistance R1, one end of terminal TP2 contact resistance R6, one end of terminal TP3 contact resistance R9, one end of one end contact resistance R5 of resistance R2, one end of resistance R7 and all ground connection, described differential signal receiver module comprises chip U4, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, crystal oscillator Y1, one end of the pin 1 contact resistance R12 of socket P1, described chip U4, its pin 7 connects its pin 20, one end of resistance R12, one end of resistance R15, one end of electric capacity C2, one end of electric capacity C6 and all connect power supply+5V voltage, its pin 8 connects its pin 22, one end of electric capacity C2, one end of electric capacity C3, one end of electric capacity C4, one end of electric capacity C5, one end of electric capacity C6 and all ground connection, its pin 9 connects one end of electric capacity C3, one end of crystal oscillator Y1, its pin 10 connects one end of electric capacity C4, one end of crystal oscillator Y1, one end of its pin 12 contact resistance R13, one end of its pin 13 contact resistance R14, one end of its pin 21 contact resistance R15, one end of electric capacity C5, one end of the pin 1 contact resistance R13 of socket P1, one end of its pin 2 contact resistance R14.
Described amplifier U1, amplifier U2, amplifier U3 select the chip of LM324 model.
Described chip U4 selects the chip of ATMEGA48 model.
The beneficial effects of the utility model are:
1 this patent both ensure that the application demand that differential signal is changed, and also ensure that differential signal amplifies demand.
2 this patents have employed multi-stage operational amplifier and realize differential signal conversion, ensure that the accuracy that differential signal is changed and real-time.
3 this patents, by single-ended signal slip sub-signal module and differential signal receiver module independence, adopt the differential signal of real-time frequency modulation to receive processing mode, compatible signal wide frequency range.
4 this patent differential signal converting systems, components and parts used are relatively less, compact conformation, and volume is little, easy for installation, and cost is low.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of single-ended signal slip sub-signal module of the present utility model;
Fig. 2 is the circuit theory diagrams of differential signal receiver module of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment:
The present embodiment comprises: single-ended signal slip sub-signal module (Fig. 1), differential signal receiver module (Fig. 2).
In Fig. 1, single-ended signal slip sub-signal module comprises amplifier U1, amplifier U2, amplifier U3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C1, terminal TP1, terminal TP2, the positive voltage input of terminal TP3, described amplifier U1 connects the positive voltage input of amplifier U2, the positive voltage input of amplifier U3 and all connect power supply+5V voltage, its negative voltage input connects the negative voltage input of amplifier U2, the negative voltage input of amplifier U3 and all connect power supply-5V voltage, one end of its positive input terminal contact resistance R1, its negative input end connects one end of electric capacity C1, one end of resistance R2, one end of resistance R11, its output connects one end of electric capacity C1, one end of resistance R3, one end of the positive input terminal contact resistance R5 of amplifier U2, one end of its negative input end contact resistance R3, one end of resistance R4, one end of its output contact resistance R4, one end of resistance R6, one end of resistance R10, one end of the positive input terminal contact resistance R7 of amplifier U3, one end of its negative input end contact resistance R8, one end of resistance R10, one end of its output contact resistance R8, one end of resistance R9, one end of resistance R11, one end of terminal TP1 contact resistance R1, one end of terminal TP2 contact resistance R6, one end of terminal TP3 contact resistance R9, one end of one end contact resistance R5 of resistance R2, one end of resistance R7 and all ground connection.
In Fig. 2, differential signal receiver module comprises chip U4, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, crystal oscillator Y1, socket P1, one end of the pin 1 contact resistance R12 of described chip U4, its pin 7 connects its pin 20, one end of resistance R12, one end of resistance R15, one end of electric capacity C2, one end of electric capacity C6 and all connect power supply+5V voltage, its pin 8 connects its pin 22, one end of electric capacity C2, one end of electric capacity C3, one end of electric capacity C4, one end of electric capacity C5, one end of electric capacity C6 and all ground connection, its pin 9 connects one end of electric capacity C3, one end of crystal oscillator Y1, its pin 10 connects one end of electric capacity C4, one end of crystal oscillator Y1, one end of its pin 12 contact resistance R13, one end of its pin 13 contact resistance R14, one end of its pin 21 contact resistance R15, one end of electric capacity C5, one end of the pin 1 contact resistance R13 of socket P1, one end of its pin 2 contact resistance R14.
Utilize technical scheme described in the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection range of the present utility model.
Claims (3)
1. a differential signal converting system, is characterized in that: comprise single-ended signal slip sub-signal module, differential signal receiver module, described single-ended signal slip sub-signal module comprises amplifier U1, amplifier U2, amplifier U3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C1, terminal TP1, terminal TP2, the positive voltage input of terminal TP3, described amplifier U1 connects the positive voltage input of amplifier U2, the positive voltage input of amplifier U3 and all connect power supply+5V voltage, its negative voltage input connects the negative voltage input of amplifier U2, the negative voltage input of amplifier U3 and all connect power supply-5V voltage, one end of its positive input terminal contact resistance R1, its negative input end connects one end of electric capacity C1, one end of resistance R2, one end of resistance R11, its output connects one end of electric capacity C1, one end of resistance R3, one end of the positive input terminal contact resistance R5 of amplifier U2, one end of its negative input end contact resistance R3, one end of resistance R4, one end of its output contact resistance R4, one end of resistance R6, one end of resistance R10, one end of the positive input terminal contact resistance R7 of amplifier U3, one end of its negative input end contact resistance R8, one end of resistance R10, one end of its output contact resistance R8, one end of resistance R9, one end of resistance R11, one end of terminal TP1 contact resistance R1, one end of terminal TP2 contact resistance R6, one end of terminal TP3 contact resistance R9, one end of one end contact resistance R5 of resistance R2, one end of resistance R7 and all ground connection, described differential signal receiver module comprises chip U4, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, crystal oscillator Y1, one end of the pin 1 contact resistance R12 of socket P1, described chip U4, its pin 7 connects its pin 20, one end of resistance R12, one end of resistance R15, one end of electric capacity C2, one end of electric capacity C6 and all connect power supply+5V voltage, its pin 8 connects its pin 22, one end of electric capacity C2, one end of electric capacity C3, one end of electric capacity C4, one end of electric capacity C5, one end of electric capacity C6 and all ground connection, its pin 9 connects one end of electric capacity C3, one end of crystal oscillator Y1, its pin 10 connects one end of electric capacity C4, one end of crystal oscillator Y1, one end of its pin 12 contact resistance R13, one end of its pin 13 contact resistance R14, one end of its pin 21 contact resistance R15, one end of electric capacity C5, one end of the pin 1 contact resistance R13 of socket P1, one end of its pin 2 contact resistance R14.
2. a kind of differential signal converting system according to claim 1, is characterized in that: described amplifier U1, amplifier U2, amplifier U3 select the chip of LM324 model.
3. a kind of differential signal converting system according to claim 1, is characterized in that: described chip U4 selects the chip of ATMEGA48 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815818.4U CN204349927U (en) | 2014-12-19 | 2014-12-19 | A kind of differential signal converting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815818.4U CN204349927U (en) | 2014-12-19 | 2014-12-19 | A kind of differential signal converting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349927U true CN204349927U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815818.4U Expired - Fee Related CN204349927U (en) | 2014-12-19 | 2014-12-19 | A kind of differential signal converting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204349927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660074A (en) * | 2019-01-21 | 2019-04-19 | 博众精工科技股份有限公司 | A kind of code device signal multiplexer |
-
2014
- 2014-12-19 CN CN201420815818.4U patent/CN204349927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660074A (en) * | 2019-01-21 | 2019-04-19 | 博众精工科技股份有限公司 | A kind of code device signal multiplexer |
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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 |
Granted publication date: 20150520 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |