Audio test circuit and electronic equipment

Abstract

The embodiment of the utility model provides an audio test circuit and electronic equipment. The audio test circuit comprises a communication module, a processing module, a switching control module, a control module and a signal output module, the switching control module is used for responding to the control command and generating a control signal; the processing module comprises at least two audio processing circuits, the input end of each audio processing circuit is electrically connected with the communication module, the output end of each audio processing circuit is electrically connected with the switching control module, the switching control module is electrically connected with the signal output module, and the control signal is used for realizing the electrical connection between the communication module and one audio processing circuit; or, the communication module is electrically connected with the switching control module, the input end of each audio processing circuit is electrically connected with the switching control module, the output end of each audio processing circuit is electrically connected with the signal output module, and the control signal is used for realizing the electrical connection between the signal output module and one audio processing circuit; the control module is used for outputting a control command.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of audio testing, and particularly to an audio testing circuit and an electronic device. Background Art

[0002] With the popularization of multimedia devices such as mobile phones, laptops, speakers, in-vehicle computers, etc., users have higher requirements for the audio playback effect in multimedia devices.

[0003] For a chip system with an audio IC or module, when basically debugging the performance and functions of the audio path, it is necessary to capture the data of the hardware logic unit for analysis, that is, to perform audio testing on the audio chip. Currently, in the process of testing an audio chip, it is usually necessary to train professional personnel to operate the testing equipment, and different audio schemes need to be set according to the needs of customers, that is, it is necessary to design multiple test PCBs (Printed Circuit Boards) corresponding to customer requirements, and then perform relevant test requirements on the test PCBs. During the testing process, not only excessive time cost and labor cost are consumed, but also it is impossible to efficiently obtain test results for the test PCBs corresponding to customer requirements. In addition, it is necessary to fly-wire to connect the test PCBs and related equipment. However, audio signals are relatively sensitive, which causes a greater impact on signal integrity.

[0004] Therefore, the existing test boards for audio chips cannot meet the test requirements of different users, and the test efficiency is relatively low. Content of the Utility Model

[0005] The embodiments of the present utility model provide an audio testing circuit and an electronic device, which are beneficial to realizing the diversity of audio test boards and improving the test efficiency.

[0006] The embodiments of the present utility model provide an audio testing circuit, including: a communication module, a processing module, a switching control module, a control module, and a signal output module; the switching control module is used to respond to the control command output by the control module and generate a control signal; the processing module includes at least two audio processing circuits, the input end of each audio processing circuit is electrically connected to the communication module, the output end of each audio processing circuit is electrically connected to the switching control module, the switching control module is electrically connected to the signal output module, and the control signal is used to electrically connect the communication module to one of the audio processing circuits; alternatively, the communication module is electrically connected to the switching control module, the input end of each audio processing circuit is electrically connected to the switching control module, the output end of each audio processing circuit is electrically connected to the signal output module, and the control signal is used to electrically connect the signal output module to one of the audio processing circuits; the control module is used to output the control command.

[0007] In some embodiments, when the output end of each of the audio processing circuits is electrically connected to the signal output module, the signal output module includes at least two signal output circuits, and each of the signal output circuits is electrically connected to the output end of each of the audio processing circuits.

[0008] In some embodiments, the signal output module further includes: a first switching circuit, the input end of the first switching circuit is electrically connected to each of the audio processing circuits, and the output end of the first switching circuit is electrically connected to the signal output circuit.

[0009] In some embodiments, the signal output circuit includes: a power amplification circuit and an audio output component connected in sequence, the input end of the power amplification circuit is electrically connected to the output end of the audio processing circuit, and the output end of the power amplification circuit is electrically connected to the audio output component.

[0010] In some embodiments, when the switching control module is electrically connected to the signal output module, the signal output module includes: a third switching circuit and at least two signal output circuits, the input end of the third switching circuit is electrically connected to the switching control module, and the output end of the third switching circuit is electrically connected to each of the signal output circuits.

[0011] In some embodiments, when the switching control module is electrically connected to the signal output module, the switching control module includes a first analog switch and a second analog switch, the input end of the first analog switch is electrically connected to each of the audio processing circuits, the output end of the first analog switch is electrically connected to the second analog switch, and the output end of the second analog switch is electrically connected to the signal output module.

[0012] In some embodiments, the processing module includes four of the audio processing circuits, and the four audio processing circuits are respectively electrically connected to the A1, B1, C1, and D1 input ends of the first analog switch; the first enable port EN1 of the control module is electrically connected to the first enable port EN1 of the first analog switch, and the second enable port EN2 of the control module is electrically connected to the second enable port EN2 of the first analog switch.

[0013] In some embodiments, the signal output module includes at least two power amplification circuits, a second switching circuit, and an audio output component, the input end of each of the power amplification circuits is electrically connected to the output end of the second analog switch, the output end of each of the power amplification circuits is electrically connected to the input end of the second switching circuit, and the output end of the second switching circuit is electrically connected to the audio output component.

[0014] In some embodiments, the signal output module includes at least two signal output circuits, and each of the signal output circuits is electrically connected to the output end of the second analog switch.

[0015] Correspondingly, an embodiment of the present invention further provides an electronic device, including: the audio test circuit according to any one of the above embodiments.

[0016] The technical solution provided by the embodiment of the present invention has the following advantages:

[0017] The audio test circuit provided by the embodiment of the present invention designs a switching control module, and the switching control module is electrically connected to the audio processing circuit. For example, the output end of each audio processing circuit is electrically connected to the switching control module or the input end of each audio processing circuit is electrically connected to the switching control module. That is to say, multiple audio processing circuits are arranged on a test PCB board, and each audio processing circuit corresponds to a customer requirement, and switching is realized through the switching control module, so as to realize the diversity control of the audio test circuit, so that the audio signal is tested through different audio processing circuits, and then different audio test results are output, so as to improve the flexibility and functionality of the audio test circuit, improve the practicability of the audio test PCB board and improve the test efficiency.

[0018] In addition, the output end of each audio processing circuit is electrically connected to the signal output module. That is to say, only one set of power amplifier circuit and playback device needs to be set. In this way, the number of the power amplifier circuit and the playback device is reduced, so that the preparation cost is reduced and the integration degree of the circuit board for integrating the audio test circuit can be improved at the same time. Secondly, the number of circuit elements set is reduced, and the number of elements that the power supply needs to supply power to is also correspondingly reduced, and the power of the power supply can be reduced; on the contrary, it can ensure that the voltage for the power amplifier circuit in the device is large and does not affect the current limit of the power amplifier circuit, so that the output effect of the audio can be improved better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. Unless otherwise stated, the figures in the drawings do not constitute a proportional limitation.

[0020] Figure 1 It is a schematic structural diagram of an audio test circuit provided by an embodiment of the present invention;

[0021] Figure 2 It is the first circuit diagram of an audio test circuit provided by an embodiment of the present invention;

[0022] Figure 3 It is the second circuit diagram of an audio test circuit provided by an embodiment of the present invention;

[0023] Figure 4 The third circuit diagram of the audio test circuit provided by an embodiment of the present utility model;

[0024] Figure 5 The fourth circuit diagram of the audio test circuit provided by an embodiment of the present utility model;

[0025] Figure 6 The fifth circuit diagram of the audio test circuit provided by an embodiment of the present utility model;

[0026] Figure 7 Another structural schematic diagram of the audio test circuit provided by an embodiment of the present utility model;

[0027] Figure 8 The sixth circuit diagram of the audio test circuit provided by an embodiment of the present utility model;

[0028] Figure 9 The seventh circuit diagram of the audio test circuit provided by an embodiment of the present utility model;

[0029] Figure 10 A circuit diagram of the audio processing circuit in the audio test circuit provided by an embodiment of the present utility model;

[0030] Figure 11 Another circuit diagram of the audio processing circuit in the audio test circuit provided by an embodiment of the present utility model;

[0031] Figure 12 Another circuit diagram of the audio processing circuit in the audio test circuit provided by an embodiment of the present utility model;

[0032] Figure 13 The circuit diagram of the switching control in the audio test circuit provided by an embodiment of the present utility model;

[0033] Figure 14 The first circuit diagram of the signal output circuit in the audio test circuit provided by an embodiment of the present utility model;

[0034] Figure 15 The second circuit diagram of the signal output circuit in the audio test circuit provided by an embodiment of the present utility model;

[0035] Figure 16 A structural schematic diagram of an electronic device provided by an embodiment of the present utility model. Detailed implementation manners

[0036] As can be seen from the background art, the existing test boards of audio chips cannot meet the test requirements of different users, and the test efficiency is relatively low.

[0037] An embodiment of the present utility model provides an audio test circuit. A switching control module is designed on a PCB board, and the switching control module is electrically connected to an audio processing circuit. For example, the output end of each audio processing circuit is electrically connected to the switching control module, or the input end of each audio processing circuit is electrically connected to the switching control module. That is to say, multiple audio processing circuits are provided on a test PCB board, and each audio processing circuit corresponds to a customer requirement, and switching is achieved through the switching control module, so as to realize the diversity control of the audio test circuit, enable the audio signal to be tested through different audio processing circuits, and then output different audio test results, so as to improve the flexibility and functionality of the audio test circuit, improve the practicability of the audio test PCB board, and improve the test efficiency.

[0038] In the description of the embodiments of the present utility model, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0039] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In the description of the embodiments of the present utility model, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may mean: there is A, there is both A and B, and there is B. In addition, the character " / " in this article generally means that the associated objects before and after are in an "or" relationship.

[0041] In the description of the embodiments of the present utility model, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0042] In the description of the embodiments of the present utility model, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model.

[0043] In the description of the embodiments of the present utility model, unless otherwise clearly specified and defined, technical terms such as "installation", "connection", "coupling", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0044] In the corresponding drawings of the embodiments of the present utility model, for better understanding and convenience of description, the thickness and area of the layer are enlarged. When describing a component (such as a layer, film, region, or substrate) on or on the surface of another component, the component can be "directly" on the surface of the other component, or there can be a third component between the two components. On the contrary, when describing a component on the surface of another component or when a surface of a component forms or is provided with another component, it means that there is no third component between the two components. In addition, when describing a component "substantially" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor on a partial edge of the entire surface.

[0045] In the description of the embodiments of the present utility model, when a certain component "includes" another component, unless otherwise stated, other components are not excluded, and other components may further be included. In addition, when a component such as a layer, film, region, or plate is referred to as "on / at" another component, it can be "directly on" the other component (i.e., on the surface of the other component and there is no other component between them), or there can be another component between them. In addition, when a layer, film, region, plate, etc. component is "directly located on" another component, or when a layer, film, region, plate, etc. component is located on the surface of another component, it means that there is no other component located between them.

[0046] The terms used in the description of the various embodiments herein are for the purpose of describing particular embodiments only and are not intended to be limiting. As used in the description of the various embodiments and the appended claims, "the part" is also intended to include the plural form unless the context clearly indicates otherwise. Among them, components include components such as layers, films, regions, or plates.

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will elaborate on the various embodiments of the present utility model with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in the various embodiments of the present utility model, many technical details are presented to help readers better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0048] Figure 1 A schematic structural diagram of an audio test circuit provided by an embodiment of the present utility model; Figure 2 The first circuit diagram of an audio test circuit provided by an embodiment of the present utility model.

[0049] Reference Figure 1 And Figure 2 Referring to

[0050] In some embodiments, the communication module 110 refers to a module that receives the audio signal of the audio input circuit, such as receiving the audio signal output by the transmitter. Among them, the audio signal output by the transmitter can be received by wire or wirelessly.

[0051] In some embodiments, the switching control module 130 is electrically connected to the control module 150, and the control module 150 is configured to output control commands, and the switching control module 130 is configured to generate control signals, thereby implementing diversified control of the audio test circuit. That is to say, the audio test circuit can be based on the test requirements of different audio test circuits, so that the audio signal is processed by different audio processing circuits 12, and then different test results are output, so as to improve the flexibility and functionality of the audio test circuit, and improve the test efficiency and the practicality of the test PCB board.

[0052] In addition, the output end of each audio processing circuit 12 is electrically connected to the signal output module 140. That is to say, only one set of power amplifier circuit and playback device needs to be set. In this way, the number of the power amplifier circuit and the playback device is reduced, so that the manufacturing cost can be reduced while the integration degree of the circuit board for integrating the audio test circuit can be improved. Secondly, the number of circuit elements set is reduced, and the number of elements that the power supply needs to supply power to is correspondingly reduced, which can reduce the power consumption of the power supply; on the contrary, it can ensure that the voltage for the power amplifier circuit in the device is large and will not affect the current limit of the power amplifier circuit, so that the output effect of the audio can be improved.

[0053] In some embodiments, the input end of each audio processing circuit 12 is electrically connected to the communication module 110, and the output end of each audio processing circuit 12 is electrically connected to the switching control module 130, that is, the switching control module 130 is located between the processing module 120 and the signal output module 140. In this way, both ends of the switching control module 130 are electrically connected to the processing module 120 and the signal output module 140 respectively. That is to say, each audio processing circuit 12 is electrically connected to the switching control module 130, and then the switching control module 130 is electrically connected to a signal output module 140, reducing the setting of additional signal output modules 140, saving the space of the integrated circuit board, and improving the integration degree.

[0054] In some embodiments, such as Figure 2As shown in the figure, the processing module 120 includes 1-audio processing circuit 121 and 2-audio processing circuit 122. The 1-audio processing circuit 121 is connected to the A1 input terminal of the switching control module 130, and the 2-audio processing circuit 122 is connected to the B1 input terminal of the switching control module 130. The switching control module 130 is an analog switch 1, and the control module 150 is a processor. The control module 150 can issue an enabling signal. For example, when the enabling signal is at a high level, the A1 input terminal of the analog switch 1 is connected to the Z1 output terminal. That is to say, the 1-audio processing circuit 121 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 1-audio processing circuit 121. For another example, when the enabling signal is at a low level, the B1 input terminal of the analog switch 1 is connected to the Z1 output terminal. That is to say, the 2-audio processing circuit 122 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 2-audio processing circuit 122 and performs relevant audio tests.

[0055] It should be noted that the switching control module 130 can be an electronic switch, such as the analog switch 1. When the switching control module 130 is in the first working state, the A1 pin of the analog switch 1 is electrically connected to the Z1 pin of the analog switch 1; when the switching control module 130 is in the second working state, the B1 pin of the analog switch 1 is electrically connected to the Z1 pin of the analog switch 1.

[0056] In some embodiments, the switching control module 130 can also be a mechanical switch, such as a toggle switch, a rotary switch, etc. The gear of the mechanical switch can be changed by manual operation to realize the selection and switching of the audio processing circuit 12. For example, when the switching control module 130 is switched to the first gear, at this time, the selection signal output by the switching control module 130 is the first signal (that is, the audio output mode of the 1-audio processing circuit 121). When the switching control module 130 is switched to the second gear, at this time, the selection signal output by the switching control module 130 is the second signal (that is, the audio output mode of the 2-audio processing circuit 122).

[0057] Figure 3 This is the second circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0058] In some embodiments, as Figure 3 shown, the processing module 120 includes four audio processing circuits 12, and the four audio processing circuits 12 are respectively electrically connected to the A1, B1, C1, and D1 input terminals of the first analog switch; the first enabling port EN1 of the control module 150 is electrically connected to the first enabling port EN1 of the first analog switch, and the second enabling port EN2 of the control module 150 is electrically connected to the second enabling port EN2 of the first analog switch.

[0059] It should be noted that the first analog switch here and the analog switch 1 above can be different analog switches. The analog switch 1 has two input terminals, while the first analog switch has four input terminals, and the judgment basis for each input terminal connected to the corresponding output terminal is different from the judgment basis for each input terminal of the first analog switch connected to the corresponding output terminal.

[0060] In some embodiments, the processing module 120 includes a 1-audio processing circuit 121, a 2-audio processing circuit 122, a 3-audio processing circuit 123, and a 4-audio processing circuit 124. The 1-audio processing circuit 121 is connected to the A1 input terminal of the switching control module 130, the 2-audio processing circuit 122 is connected to the B1 input terminal of the switching control module 130, the 3-audio processing circuit 123 is connected to the C1 input terminal of the switching control module 130, and the 4-audio processing circuit 124 is connected to the D1 input terminal of the switching control module 130. The switching control module 130 is the first analog switch, and the control module 150 is a processor. The control module 150 can issue two enable signals EN1 and EN2. For example, when the first enable signal EN1 is at a high level and the second enable signal EN2 is at a high level, the A1 input terminal of the first analog switch is connected to the Z1 output terminal. That is to say, the 1-audio processing circuit 121 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 1-audio processing circuit 121. For example, when the first enable signal EN1 is at a high level and the second enable signal EN2 is at a low level, the B1 input terminal of the first analog switch is connected to the Z1 output terminal. That is to say, the 2-audio processing circuit 122 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 2-audio processing circuit 122. Another example is that when the first enable signal EN1 is at a low level and the second enable signal EN2 is at a high level, the C1 input terminal of the first analog switch is connected to the Z1 output terminal. That is to say, the 3-audio processing circuit 123 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 3-audio processing circuit 123. Still another example is that when the first enable signal EN1 is at a low level and the second enable signal EN2 is at a low level, the D1 input terminal of the first analog switch is connected to the Z1 output terminal. That is to say, the 4-audio processing circuit 124 is connected to the signal output module 140, and the signal output module 140 outputs the output processing mode of the audio processing chip corresponding to the 4-audio processing circuit 124.

[0061] Figure 4 This is the third circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0062] In some embodiments, such asFigure 4 As shown in the figure, the switching control module 130 includes a first analog switch 131 and a second analog switch 132. The input end of the first analog switch 131 is electrically connected to each audio processing circuit 12. The output end of the first analog switch 131 is electrically connected to the second analog switch 132. The output end of the second analog switch 132 is electrically connected to the signal output circuit of the signal output module 140. The signal output module 140 includes at least two signal output circuits. One of the signal output circuits includes a 1-power amplifier circuit 1411 and a 1-speaker 1421, and the other signal output circuit includes a 2-power amplifier circuit 1412 and a 2-speaker 1422.

[0063] In some embodiments, the first enable port EN1 of the control module 150 is electrically connected to the first enable port EN1 of the first analog switch 131. The second enable port EN2 of the control module 150 is electrically connected to the second enable port EN2 of the first analog switch 131. The third enable port EN3 of the control module 150 is electrically connected to the enable port EN3 of the second analog switch 132.

[0064] Among them, Figure 4 For the working principle of the first analog switch 131 shown in the figure, please refer to Figure 3 the working principle of the first analog switch, and details will not be elaborated here. Figure 4 The working principle of the second analog switch 132 shown in the figure is as follows: The control module 150 can issue a third enable signal EN3. For example, when the third enable signal EN3 is at a high level, the Z2 input end of the second analog switch 132 is connected to the A2 output end. That is to say, the selected audio processing circuit 12 in the processing module 120 is connected to the 1-power amplifier circuit 1411 and the 1-speaker 1421. The signal output module 140 processes according to the output processing mode of the power amplifier circuit corresponding to the 1-power amplifier circuit 1411 and outputs the test result. Another example is that when the third enable signal EN3 is at a low level, the Z2 input end of the second analog switch 132 is connected to the B2 output end. That is to say, the selected audio processing circuit 12 in the processing module 120 is connected to the 2-power amplifier circuit 1412 and the 2-speaker 1422. The signal output module 140 processes according to the output processing mode of the power amplifier circuit corresponding to the 2-power amplifier circuit 1412 and outputs the test result.

[0065] It should be noted that the first analog switch 131 and the second analog switch 132 can be electronic switches. When the first analog switch 131 is in the first working state, the A1 pin of the first analog switch 131 is electrically connected to the Z1 pin of the first analog switch 131; when the first analog switch 131 is in the second working state, the B1 pin of the first analog switch 131 is electrically connected to the Z1 pin of the first analog switch 131. Similarly, when the second analog switch 132 is in the first working state, the A2 pin of the second analog switch 132 is electrically connected to the Z2 pin of the second analog switch 132; when the second analog switch 132 is in the second working state, the B2 pin of the second analog switch 132 is electrically connected to the Z2 pin of the first analog switch 131.

[0066] In some embodiments, the first analog switch 131 and the second analog switch 132 can also be mechanical switches, such as toggle switches, rotary switches, etc. The gear position of the mechanical switch can be changed by manual operation to achieve the selection and switching of the audio processing circuit 12. For example, when the first analog switch 131 is switched to the first gear position, at this time, the selection signal output by the switching control module 130 is the first signal (i.e., the audio output mode of the output 1 - audio processing circuit 121). When the first analog switch 131 is switched to the second gear position, at this time, the selection signal output by the switching control module 130 is the second signal (i.e., the audio output mode of the output 2 - audio processing circuit 122).

[0067] Figure 5 This is the fourth circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0068] In some embodiments, referring to Figure 5 , the signal output module includes: a third switching circuit 143 and at least two signal output circuits. The input end of the third switching circuit 143 is electrically connected to the switching control module 130, and the output end of the third switching circuit 143 is electrically connected to each signal output circuit, that is, the output end of the third switching circuit 143 is electrically connected to the power amplifier circuit 141. The working principle of the third switching circuit 143 is the same as that of the second analog switch 132 shown in Figure 4 , and will not be elaborated in detail here.

[0069] Figure 6 This is the fifth circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0070] In some embodiments, referring to Figure 6, the signal output module 140 includes at least two power amplification circuits 141, a second switching circuit 144, and an audio output component 142. The input end of each power amplification circuit 141 is electrically connected to the output end of the second analog switch 132, the output end of each power amplification circuit 141 is electrically connected to the input end of the second switching circuit 144, and the output end of the second switching circuit 144 is electrically connected to the audio output component 142. By setting a second switching circuit 144 again, the number of audio output components 142 can be reduced, and multiple audio processing circuits 12 and power amplification circuits 141 all output sound through one audio output component 142, avoiding the noise influence caused by different devices, thereby optimizing the playback quality of the audio output component 142.

[0071] Figure 7 Another structural schematic diagram of the audio test circuit provided by an embodiment of the present invention. Figure 8 The sixth circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0072] Reference Figure 7 And Figure 8 , an embodiment of the present invention also provides another audio test circuit, including: a communication module 110, a processing module 120, a switching control module 130, a control module 150, and a signal output module 140; the processing module 120 includes at least two audio processing circuits 12, the communication module 110 is electrically connected to the switching control module 130, the input end of each audio processing circuit 12 is electrically connected to the switching control module 130, and the output end of each audio processing circuit 12 is electrically connected to the signal output module 140; the switching control module 130 is used to respond to the control command output by the control module 150 and generate a control signal; the control signal is used to realize the electrical connection between the signal output module 140 and one of the audio processing circuits 12; the control module 150 is used to output a control command.

[0073] In some embodiments, referring to Figure 8 , the signal output module 140 includes at least two signal output circuits, and the signal output circuits are connected to the audio processing circuits 12 in a one-to-one correspondence, and each signal output circuit is electrically connected to the output end of each audio processing circuit 12. Among them, the working principle of the switching control module 130 is the same as that of the switching control module 130 shown in Figure 2 , and will not be elaborated here in detail.

[0074] Figure 9 The seventh circuit diagram of the audio test circuit provided by an embodiment of the present invention.

[0075] In some embodiments, referring to Figure 9, the signal output module 140 includes a signal output circuit and a first switching circuit 146. The input end of the first switching circuit 146 is electrically connected to each audio processing circuit 12, and the output end of the first switching circuit 146 is electrically connected to the signal output circuit.

[0076] In some embodiments, the first switching circuit 146 can be an electronic switch. When the first switching circuit 146 is in the first working state, the A2 pin of the first switching circuit 146 is electrically connected to the Z2 pin of the first switching circuit 146; when the first switching circuit 146 is in the second working state, the B2 pin of the first switching circuit 146 is electrically connected to the Z2 pin of the first switching circuit 146.

[0077] In some embodiments, the first switching circuit 146 can also be a mechanical switch, such as a toggle switch, a rotary switch, etc. The gear position of the mechanical switch can be changed by manual operation to realize the selection and switching of the audio processing circuit 12. For example, when the first switching circuit 146 is switched to the first gear position, at this time, the selection signal output by the switching control module 130 is the first signal (i.e., the audio output mode of the output 1 - audio processing circuit 121). When the first switching circuit 146 is switched to the second gear position, at this time, the selection signal output by the switching control module 130 is the second signal (i.e., the audio output mode of the output 2 - audio processing circuit 122).

[0078] It should be noted that Figure 9 the shown audio test circuit includes a switching control module 130 and a first switching circuit 146. For the enable signal output by the processor, the embodiments of the present invention do not limit it, as long as after the control module 150 issues a signal, there is one audio processing circuit 12 between the communication module 110 and the power amplifier circuit 141.

[0079] In a specific example, when the control module 150 issues an enable signal EN1 and an enable signal EN2, the A1 pin of the switching control module 130 is electrically connected to the Z1 pin of the switching control module 130 and the A2 pin of the first switching circuit 146 is electrically connected to the Z2 pin of the first switching circuit 146, it can be realized that there is a 1 - audio processing circuit 121 between the communication module 110 and the power amplifier circuit 141.

[0080] Figure 10 is a circuit diagram of an audio processing circuit in the audio test circuit provided by an embodiment of the present invention; Figure 11 is another circuit diagram of an audio processing circuit in the audio test circuit provided by an embodiment of the present invention; Figure 12 is yet another circuit diagram of an audio processing circuit in the audio test circuit provided by an embodiment of the present invention. Figures 10 - 12It is a schematic circuit diagram of various chips corresponding to the audio processing circuit 12. For example, the audio processing circuit 12 can be the circuit in the first chip shown in Figure 10 (ES8311 chip), the circuit in the second chip shown in Figure 11 (TM8211 chip), or the circuit in the third chip shown in Figure 12 (ES7148 chip). For the specific circuit structure and driving principle of the above audio processing circuit, reference can be made to the related technology and will not be elaborated here. Figure 10 The circuit in the first chip shown in Figure 11 , the circuit in the second chip shown in Figure 12 or the circuit in the third chip shown in

[0081] Similarly, Figure 13 is the circuit diagram of the switching control module in the audio test circuit provided by an embodiment of the present invention; Figure 14 is the first circuit diagram of the signal output circuit in the audio test circuit provided by an embodiment of the present invention; Figure 15 is the second circuit diagram of the signal output circuit in the audio test circuit provided by an embodiment of the present invention. Figure 13 is the switching control circuit diagram corresponding to the switching control module 130, Figure 14 and Figure 15 are signal output circuits. The algorithm parameters of the audio test circuit are pre-configured specifically in the power amplification circuits of the switching control module and the signal output circuit. For the specific circuit structure and driving principle of the switching control module and the signal output circuit, reference can be made to the related technology and will not be elaborated here.

[0082] Correspondingly, an embodiment of the present invention further provides an electronic device. Referring to Figure 16 , the electronic device includes: the audio test circuit according to any one of the above embodiments, and the same or corresponding technical features as those in the above embodiments will not be elaborated in detail here.

[0083] Figure 16 is a schematic structural diagram of the electronic device provided by an embodiment of the present invention.

[0084] In some embodiments, the electronic device may include any audio playback device, such as a mobile phone, a stereo, a horn, a speaker, and a computer, etc.

[0085] Each module in the above audio test circuit can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above respective modules.

[0086] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0087] Those of ordinary skill in the art can understand that the above embodiments are specific embodiments for implementing the present utility model. In actual applications, various changes can be made in form and details without departing from the spirit and scope of the present utility model. Any person skilled in the art can make their respective changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. An audio test circuit, characterized in that, Including: A communication module, a processing module, a switching control module, a control module, and a signal output module; The switching control module is configured to respond to a control command output by the control module and generate a control signal; The processing module includes at least two audio processing circuits. The input end of each audio processing circuit is electrically connected to the communication module, and the output end of each audio processing circuit is electrically connected to the switching control module. The switching control module is electrically connected to the signal output module. The control signal is used to electrically connect the communication module to one of the audio processing circuits; alternatively, the communication module is electrically connected to the switching control module, the input end of each audio processing circuit is electrically connected to the switching control module, and the output end of each audio processing circuit is electrically connected to the signal output module. The control signal is used to electrically connect the signal output module to one of the audio processing circuits; The control module is configured to output the control command.

2. The audio test circuit according to claim 1, wherein When the output end of each audio processing circuit is electrically connected to the signal output module, the signal output module includes at least two signal output circuits, and each signal output circuit is electrically connected to the output end of each audio processing circuit.

3. The audio test circuit according to claim 2, wherein The signal output module further includes: a first switching circuit. The input end of the first switching circuit is electrically connected to each audio processing circuit, and the output end of the first switching circuit is electrically connected to the signal output circuit.

4. The audio test circuit according to claim 2, wherein The signal output circuit includes: a power amplification circuit and an audio output component connected in sequence. The input end of the power amplification circuit is electrically connected to the output end of the audio processing circuit, and the output end of the power amplification circuit is electrically connected to the audio output component.

5. The audio test circuit according to claim 1, wherein When the switching control module is electrically connected to the signal output module, the signal output module includes: a third switching circuit and at least two signal output circuits. The input end of the third switching circuit is electrically connected to the switching control module, and the output end of the third switching circuit is electrically connected to each signal output circuit.

6. The audio test circuit according to claim 1, wherein When the switching control module is electrically connected to the signal output module, the switching control module includes a first analog switch and a second analog switch. The input end of the first analog switch is electrically connected to each audio processing circuit, the output end of the first analog switch is electrically connected to the second analog switch, and the output end of the second analog switch is electrically connected to the signal output module.

7. The audio test circuit according to claim 6, wherein The processing module includes four audio processing circuits, and the four audio processing circuits are respectively electrically connected to the A1, B1, C1, and D1 input ends of the first analog switch; the first enable port EN1 of the control module is electrically connected to the first enable port EN1 of the first analog switch, and the second enable port EN2 of the control module is electrically connected to the second enable port EN2 of the first analog switch.

8. The audio test circuit according to claim 6, wherein The signal output module includes at least two power amplification circuits, a second switching circuit, and an audio output component. The input end of each power amplification circuit is electrically connected to the output end of the second analog switch, the output end of each power amplification circuit is electrically connected to the input end of the second switching circuit, and the output end of the second switching circuit is electrically connected to the audio output component.

9. The audio test circuit according to claim 6, wherein The signal output module includes at least two signal output circuits, and each signal output circuit is electrically connected to the output end of the second analog switch.

10. An electronic device, characterized in that, Comprising: The audio test circuit according to any one of claims 1 to 9.

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