CN203813946U - Natural sound effect processing circuit - Google Patents
Natural sound effect processing circuit Download PDFInfo
- Publication number
- CN203813946U CN203813946U CN201420104007.3U CN201420104007U CN203813946U CN 203813946 U CN203813946 U CN 203813946U CN 201420104007 U CN201420104007 U CN 201420104007U CN 203813946 U CN203813946 U CN 203813946U
- Authority
- CN
- China
- Prior art keywords
- resistance
- capacitor
- transporting discharging
- integrated transporting
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Networks Using Active Elements (AREA)
Abstract
A natural sound effect processing circuit comprises a first integrated operation amplifier, a second integrated operation amplifier, first to fourth input coupling capacitors, a first high pitch compensation capacitor and a second high pitch compensation capacitor, first to fourth filtering capacitors, a first output coupling capacitor and a second output coupling capacitor, and first to eighth resistors. According to the natural sound effect processing circuit, high frequency noises can be effectively suppressed, and overtone characteristics of output audios are basically not influenced by high frequency noise suppression due to high pitch compensation and signal amplification, so that quality of audios output by the processing circuit is high. In addition, components with certain physical properties are selected by the circuit, and audio quality of the processing circuit can be more optimized.
Description
Technical field
The utility model relates to a kind of natural sound effect treatment circuit.
Background technology
Digital audio circuit will inevitably carry the high-frequency noise of non-audio signals in digital-to-analogue conversion process, existing audio signal processing circuit generally suppresses to process to high-frequency noise, but, also the overtone characteristic that has suppressed audio signal, makes audio signal lose nature sound and has the overtone characteristic echoing simultaneously.
Electronic product General Requirements low power dissipation design, audio signal processing circuit generally adopts 3.3V or lower power voltage supply, and this kind still can not be handled well the natural characteristic of audio signal at present by the audio signal processing circuit of low voltage power supply.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide one can solve the problems of the technologies described above natural sound effect treatment circuit.
For achieving the above object, the utility model adopts following technical scheme:
A kind of natural sound effect treatment circuit, it comprises the first integrated transporting discharging, the second integrated transporting discharging, the first input coupling capacitance to the four input coupling capacitances, the first high pitch building-out capacitor and the second high pitch building-out capacitor, the first filter capacitor to the four filter capacitors, the first output coupling capacitor and the second output coupling capacitor, the first resistance to the eight resistance;
The in-phase end of this first integrated transporting discharging is connected audio frequency L channel differential signal positive input terminal or audio frequency L channel mono signal end by the first resistance with the first input coupling capacitance successively, accordingly, the end of oppisite phase of this first integrated transporting discharging is connected audio frequency L channel differential signal negative input end or earth terminal by the second resistance with the second input coupling capacitance successively; One end of the first high pitch building-out capacitor connects the in-phase end of the first integrated transporting discharging, and the other end of the first high pitch building-out capacitor connects the end of oppisite phase of the first integrated transporting discharging, also connects the output of the first integrated transporting discharging by the 3rd resistance; The in-phase end of the first integrated transporting discharging is also by the first filter capacitor ground connection, and the end of oppisite phase of the first integrated transporting discharging also connects the output of the first integrated transporting discharging by the second filter capacitor; One end of this first high pitch building-out capacitor is also by the 4th resistance and the 5th grounding through resistance, and the node between the 4th resistance and the 5th resistance, by the first capacity earth, also connects the first power supply, also connects the power end of the first integrated transporting discharging by the 6th resistance;
The in-phase end of this second integrated transporting discharging is connected audio frequency R channel differential signal positive input terminal or audio frequency R channel mono signal end by the 7th resistance with the 3rd input coupling capacitance successively, accordingly, the end of oppisite phase of this second integrated transporting discharging is connected audio frequency R channel differential signal negative input end or earth terminal by the 8th resistance with the 4th input coupling capacitance successively; The in-phase end of this first integrated transporting discharging is also by the 3rd filter capacitor ground connection, and the end of oppisite phase of this second integrated transporting discharging also connects the output of the second integrated transporting discharging by the 4th filter capacitor; One end of this second high pitch building-out capacitor connects the in-phase end of this second integrated transporting discharging, also connect the first power supply by the 9th resistance, the other end of this second high pitch building-out capacitor connects the end of oppisite phase of this second integrated transporting discharging, also connects the output of the second integrated transporting discharging by the tenth resistance;
The output of this first integrated transporting discharging and the second integrated transporting discharging is connected output port by the first output coupling capacitor with the second output coupling capacitor respectively.
Further, this natural sound effect treatment circuit also comprises the 11 resistance and the 12 resistance, the 11 resistance is connected between one end of this first high pitch building-out capacitor and the in-phase end of this first integrated transporting discharging, and the 12 resistance is connected between the other end of this first high pitch building-out capacitor and the end of oppisite phase of this first integrated transporting discharging.
Further, this natural sound effect treatment circuit also comprises the 13 resistance and the 14 resistance, the 13 resistance is connected between one end of this second high pitch building-out capacitor and the in-phase end of this second integrated transporting discharging, and the 14 resistance is connected between the other end of this second high pitch building-out capacitor and the end of oppisite phase of this second integrated transporting discharging.
Further, this natural sound effect treatment circuit also comprises the 15 resistance to the 17 resistance, the second electric capacity to the five electric capacity; Second source connects the power end of the first integrated transporting discharging, the second electric capacity is in parallel and is connected with the 3rd electric capacity, one end of the second electric capacity connects second source, the other end ground connection of the second electric capacity, also, by the 15 grounding through resistance, one end of the 16 resistance is connected between the first output coupling capacitor and output port, the other end ground connection of the 16 resistance, one end of the 17 resistance is connected between the second output coupling capacitor and output port, the other end ground connection of the 17 resistance; One end of the 4th electric capacity connects between the first input coupling capacitance and the first resistance, and the other end of the 4th electric capacity connects between the second input coupling capacitance and the second resistance; One end of the 5th electric capacity connects between the 3rd input coupling capacitance and the 7th resistance, and the other end of the 5th electric capacity connects between the 4th input coupling capacitance and the 8th resistance.
Further, the first input coupling capacitance to the four coupling capacitances are tantalum electric capacity or thin-film capacitor.
Further, the capacitance scope of the first input coupling capacitance to the four coupling capacitances is 0.47 microfarad ~ 10 microfarad.
Further, the capacitance swing of the first filter capacitor to the four filter capacitors is 5 pico farad to 100 pico farads.
Further, the first integrated transporting discharging and the second integrated transporting discharging are the ic core of FET structure.
Further, the first output coupling capacitor and the second output coupling capacitor are tantalum electric capacity or perhaps electrochemical capacitor of thin-film electro.
Further, the capacitance span of the first output coupling capacitor and the second output coupling capacitor is 2.2 microfarad to 100 microfarads.
The beneficial effects of the utility model are as follows:
Above-mentioned utility model can effectively suppress high-frequency noise, meanwhile, compensated with signal and amplified the overtone characteristic not impact of suppressed high-frequency noise substantially that makes output audio, thereby the audio quality that this treatment circuit is exported is high by high pitch.In addition, this circuit is selected the element of certain physical characteristic, can more optimize the audio quality of this treatment circuit.
Brief description of the drawings
Fig. 1 is the circuit diagram of the preferred embodiments of the utility model natural sound effect treatment circuit.
Fig. 2 is the circuit diagram of another preferred embodiments of the utility model natural sound effect treatment circuit.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1 and Fig. 2, the utility model relates to a kind of natural sound effect treatment circuit, for generating the audio signal processing circuit of natural sound effect, its preferred embodiments comprises that integrated transporting discharging U1, integrated transporting discharging U2, resistance R 1 are to resistance R 17 and capacitor C 1 to capacitor C 17.
The in-phase end of this integrated transporting discharging U1 is connected audio frequency L channel differential signal positive input terminal SPK_LP or audio frequency L channel mono signal end SPK_LP0 by resistance R 1, resistance R 2 and capacitor C 1 successively, accordingly, the end of oppisite phase of this integrated transporting discharging U1 is connected audio frequency L channel differential signal negative input end SPK_LN or earth terminal GND by resistance R 3, resistance R 4 and capacitor C 2 successively.Between one end contact resistance R2 and resistance R 1 of capacitor C 14, between the other end contact resistance R4 and resistance R 3 of capacitor C 14, also connect the output of integrated transporting discharging U1 by resistance R 5.The in-phase end of integrated transporting discharging U1 is also by capacitor C 3 ground connection, and the end of oppisite phase of integrated transporting discharging U1 also connects the output of integrated transporting discharging U1 by capacitor C 4.One end of this capacitor C 14 is also by resistance R 6 and resistance R 7 ground connection, and the node between resistance R 6 and resistance R 7, by capacitor C 5 ground connection, also connects power supply VCOM.
The in-phase end of this integrated transporting discharging U2 is connected audio frequency R channel differential signal positive input terminal SPK_RP or audio frequency R channel mono signal end SPK_RP0 by resistance R 9, resistance R 10 and capacitor C 6 successively, accordingly, the end of oppisite phase of this integrated transporting discharging U2 is connected audio frequency R channel differential signal negative input end SPK_RN or earth terminal GND by resistance R 12, resistance R 11 and capacitor C 7 successively.The in-phase end of this integrated transporting discharging U2 is also by capacitor C 8 ground connection, and the end of oppisite phase of this integrated transporting discharging U2 also connects the output of integrated transporting discharging U2 by capacitor C 9.One end of this capacitor C 15 connects between this resistance R 10 and resistance R 9, also connects power supply VCOM by resistance R 14, and the other end of this capacitor C 15 connects between this resistance R 11 and resistance R 12, also connects the output of integrated transporting discharging U2 by resistance R 13.The output of this integrated transporting discharging U1 and integrated transporting discharging U2 is connected output port 10 by capacitor C 10 with capacitor C 11 respectively, one end of resistance R 16 is connected between capacitor C 10 and output port 10, the other end ground connection of resistance R 16, one end of resistance R 17 is connected between capacitor C 11 and output port 10, the other end ground connection of resistance R 17.Power vd D connects the power end of integrated transporting discharging U1, and resistance R 8 is connected between this power supply VCOM and power vd D, and capacitor C 12 is in parallel and is connected with capacitor C 13, and one end of capacitor C 12 connects power vd D, and the other end ground connection of capacitor C 12, also by resistance R 15 ground connection.
The circuit module that above-mentioned resistance R 7, capacitor C 5 and resistance R 8 form supplies with for generating the reference voltage that integrated transporting discharging U1 uses.
Capacitor C 1, capacitor C 2, capacitor C 6 and capacitor C 7 are input coupling capacitance, for making the performance of this circuit better, in the present embodiment, capacitor C 1, capacitor C 2, capacitor C 6 and capacitor C 7 are tantalum electric capacity or perhaps electrochemical capacitor of thin-film electro, and capacitance scope is 0.47 microfarad ~ 22 microfarad.
Capacitor C 14 and capacitor C 15 are high pitch building-out capacitor.
Capacitor C 3, capacitor C 4, capacitor C 8 and capacitor C 9 are filter capacitor, and when four capacitance swing is 10 pico farad to 47 pico farad, four both can suppress high-frequency noise, and the impact of the overtone characteristic on audio frequency is also minimum.
In the present embodiment, integrated transporting discharging U1 and integrated transporting discharging U2 are FET(Field Effect Transistor, field effect transistor) integrated circuit (IC) chip of structure.
Capacitor C 10 and capacitor C 11 are output coupling capacitor, and for making the performance of this circuit better, capacitor C 10 and capacitor C 11 are tantalum electric capacity or perhaps electrochemical capacitor of thin-film electro, and three's capacitance span is 2.2 microfarad to 100 microfarads.
Resistance R 2, resistance R 4 and resistance R 5 are for the multiplication factor of control integration amplifier U1; Resistance R 10, resistance R 11 and resistance R 13 are for the multiplication factor of control integration amplifier U2.
This circuit also comprises capacitor C 16 and capacitor C 17, and one end of capacitor C 16 connects between capacitor C 6 and resistance R 10, and the other end of capacitor C 16 connects between capacitor C 7 and resistance R 11.One end of capacitor C 17 connects between capacitor C 1 and resistance R 2, and the other end of capacitor C 17 connects between capacitor C 2 and resistance R 4.
Above-mentioned utility model can effectively suppress high-frequency noise, meanwhile, compensated with signal and amplified the overtone characteristic not impact of suppressed high-frequency noise substantially that makes output audio, thereby the audio quality that this treatment circuit is exported is high by high pitch.In addition, this circuit is selected the element of certain physical characteristic, can more optimize the audio quality of this treatment circuit.
for a person skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and distortion, and these all changes and distortion all should belong to the protection range of the utility model claim within.
Claims (10)
1.
a kind of natural sound effect treatment circuit, is characterized in that: it comprises the first integrated transporting discharging, the second integrated transporting discharging, the first input coupling capacitance to the four input coupling capacitances, the first high pitch building-out capacitor and the second high pitch building-out capacitor, the first filter capacitor to the four filter capacitors, the first output coupling capacitor and the second output coupling capacitor, the first resistance to the eight resistance;
the in-phase end of this first integrated transporting discharging is connected audio frequency L channel differential signal positive input terminal or audio frequency L channel mono signal end by the first resistance with the first input coupling capacitance successively, accordingly, the end of oppisite phase of this first integrated transporting discharging is connected audio frequency L channel differential signal negative input end or earth terminal by the second resistance with the second input coupling capacitance successively; One end of the first high pitch building-out capacitor connects the in-phase end of the first integrated transporting discharging, and the other end of the first high pitch building-out capacitor connects the end of oppisite phase of the first integrated transporting discharging, also connects the output of the first integrated transporting discharging by the 3rd resistance; The in-phase end of the first integrated transporting discharging is also by the first filter capacitor ground connection, and the end of oppisite phase of the first integrated transporting discharging also connects the output of the first integrated transporting discharging by the second filter capacitor; One end of this first high pitch building-out capacitor is also by the 4th resistance and the 5th grounding through resistance, and the node between the 4th resistance and the 5th resistance, by the first capacity earth, also connects the first power supply, also connects the power end of the first integrated transporting discharging by the 6th resistance;
the in-phase end of this second integrated transporting discharging is connected audio frequency R channel differential signal positive input terminal or audio frequency R channel mono signal end by the 7th resistance with the 3rd input coupling capacitance successively, accordingly, the end of oppisite phase of this second integrated transporting discharging is connected audio frequency R channel differential signal negative input end or earth terminal by the 8th resistance with the 4th input coupling capacitance successively; The in-phase end of this first integrated transporting discharging is also by the 3rd filter capacitor ground connection, and the end of oppisite phase of this second integrated transporting discharging also connects the output of the second integrated transporting discharging by the 4th filter capacitor; One end of this second high pitch building-out capacitor connects the in-phase end of this second integrated transporting discharging, also connect the first power supply by the 9th resistance, the other end of this second high pitch building-out capacitor connects the end of oppisite phase of this second integrated transporting discharging, also connects the output of the second integrated transporting discharging by the tenth resistance;
the output of this first integrated transporting discharging and the second integrated transporting discharging is connected output port by the first output coupling capacitor with the second output coupling capacitor respectively.
2.
natural sound effect treatment circuit as claimed in claim 1, it is characterized in that: this natural sound effect treatment circuit also comprises the 11 resistance and the 12 resistance, the 11 resistance is connected between one end of this first high pitch building-out capacitor and the in-phase end of this first integrated transporting discharging, and the 12 resistance is connected between the other end of this first high pitch building-out capacitor and the end of oppisite phase of this first integrated transporting discharging.
3.
natural sound effect treatment circuit as claimed in claim 2, it is characterized in that: this natural sound effect treatment circuit also comprises the 13 resistance and the 14 resistance, the 13 resistance is connected between one end of this second high pitch building-out capacitor and the in-phase end of this second integrated transporting discharging, and the 14 resistance is connected between the other end of this second high pitch building-out capacitor and the end of oppisite phase of this second integrated transporting discharging.
4.
natural sound effect treatment circuit as claimed in claim 3, is characterized in that: this natural sound effect treatment circuit also comprises the 15 resistance to the 17 resistance, the second electric capacity to the five electric capacity; Second source connects the power end of the first integrated transporting discharging, the second electric capacity is in parallel and is connected with the 3rd electric capacity, one end of the second electric capacity connects second source, the other end ground connection of the second electric capacity, also, by the 15 grounding through resistance, one end of the 16 resistance is connected between the first output coupling capacitor and output port, the other end ground connection of the 16 resistance, one end of the 17 resistance is connected between the second output coupling capacitor and output port, the other end ground connection of the 17 resistance; One end of the 4th electric capacity connects between the first input coupling capacitance and the first resistance, and the other end of the 4th electric capacity connects between the second input coupling capacitance and the second resistance; One end of the 5th electric capacity connects between the 3rd input coupling capacitance and the 7th resistance, and the other end of the 5th electric capacity connects between the 4th input coupling capacitance and the 8th resistance.
5.
natural sound effect treatment circuit as claimed in claim 1, is characterized in that: the first input coupling capacitance to the four coupling capacitances are tantalum electric capacity or perhaps electrochemical capacitor of thin-film electro.
6.
natural sound effect treatment circuit as claimed in claim 5, is characterized in that: the capacitance scope of the first input coupling capacitance to the four coupling capacitances is 0.47 microfarad ~ 10 microfarad.
7.
natural sound effect treatment circuit as claimed in claim 1, is characterized in that: the capacitance swing of the first filter capacitor to the four filter capacitors is 5 pico farad to 100 pico farads.
8.
natural sound effect treatment circuit as claimed in claim 1, is characterized in that: the first integrated transporting discharging and the second integrated transporting discharging are the ic core of FET structure.
9.
natural sound effect treatment circuit as claimed in claim 1, is characterized in that: the first output coupling capacitor and the second output coupling capacitor are tantalum electric capacity or perhaps electrochemical capacitor of thin-film electro.
10.
natural sound effect treatment circuit as claimed in claim 9, is characterized in that: the capacitance span of the first output coupling capacitor and the second output coupling capacitor is 2.2 microfarad to 100 microfarads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104007.3U CN203813946U (en) | 2014-03-07 | 2014-03-07 | Natural sound effect processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104007.3U CN203813946U (en) | 2014-03-07 | 2014-03-07 | Natural sound effect processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813946U true CN203813946U (en) | 2014-09-03 |
Family
ID=51452637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420104007.3U Withdrawn - After Issue CN203813946U (en) | 2014-03-07 | 2014-03-07 | Natural sound effect processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826185B (en) * | 2014-03-07 | 2017-02-08 | 深圳市晶科源科技有限公司 | Natural sound effect processing circuit |
-
2014
- 2014-03-07 CN CN201420104007.3U patent/CN203813946U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826185B (en) * | 2014-03-07 | 2017-02-08 | 深圳市晶科源科技有限公司 | Natural sound effect processing circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203368756U (en) | Miniature microphone | |
| CN104685904B (en) | Electret Condencer Microphone and its impedance transformer | |
| CN203813946U (en) | Natural sound effect processing circuit | |
| CN207677708U (en) | There is source crystal oscillator filter circuit module | |
| CN106535022A (en) | Earphone noise reduction circuit with balancer and power amplification function | |
| CN105047212A (en) | Audio play circuit and player | |
| CN205265633U (en) | Anti interfering signal magnification system | |
| CN103826185A (en) | Natural sound effect processing circuit | |
| CN204089737U (en) | Realize the high-precision amplifying structure of variable gain | |
| CN203563026U (en) | Low-pass buffer filter circuit | |
| CN204929209U (en) | Microphone monomer that restraines resonance | |
| CN206728280U (en) | A kind of binaural sound amplifying circuit | |
| CN207053471U (en) | A kind of superelevation PSRR power amplification device | |
| CN202310028U (en) | Mini microphone | |
| CN206804148U (en) | A kind of CRY2110 noise transducers | |
| CN202663531U (en) | Power amplifier device with alt and bass adjustment | |
| CN106162435A (en) | A kind of mike monomer suppressing resonance | |
| CN203027461U (en) | Audio module and audio player | |
| CN204697020U (en) | A kind of dual output constant current-supplying circuit for preamplifier | |
| CN202310031U (en) | Microphone | |
| CN106060709B (en) | Microphone amplifier circuit | |
| CN203933555U (en) | A kind of integrated fully-differential amplifier | |
| CN203914910U (en) | A kind of Acquisition Circuit of high s/n ratio small-signal | |
| CN107192443A (en) | A kind of CRY2110 noise transducers | |
| CN203206450U (en) | Stereo hi-fi transistor push-pull sound amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20170208 |