Radio frequency circuit and electronic device

Abstract

The application discloses a radio frequency circuit and electronic equipment; the radio frequency circuit comprises a first end of a radio frequency circuit identification setting module connected with a power supply pin, a second end of the radio frequency circuit identification setting module connected with a radio frequency circuit identification pin, a third end of the radio frequency circuit identification setting module connected with a radio frequency port, and a fourth end of the radio frequency circuit identification setting module used for sending a radio frequency signal to a peripheral circuit of the radio frequency circuit; the radio frequency circuit identification setting module outputs a voltage to the radio frequency circuit identification pin according to a grounding state of the fourth end, so that the radio frequency circuit identification of the radio frequency circuit is set; the radio frequency circuit does not have a newly-added pin, only uses conventional pins, and realizes the configuration of the ID of the circuit without adding a pin.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of semiconductor technology, and relates to but not limited to a radio frequency circuit and an electronic device. BACKGROUND

[0002] With the increasing integration of electronic systems, there are more and more components in an electronic system. In order to identify and distinguish each component, an ID (Identifier) is usually set for each component.

[0003] In the prior art, there are two methods to set the ID:

[0004] The first method is to make two or more IDs for the same component. In this method, several components with different IDs are produced. Since the components with different IDs cannot be replaced, it is easy to cause idle materials, and the ID pin increases the size of the component, which causes waste in component design.

[0005] The second method is to design an ID pin on the component, and realize different IDs by connecting the ID pin to high level and low level. This method of distinguishing components by connecting the pin to high level and low level also has the following disadvantages: the ID pin increases the size of the component.

[0006] With the increasing demand for high integration and high capacity electronic systems in the industry, the demand for structures that increase the capacity of electronic systems and reduce the size will be more and more. Therefore, reducing the number of ID pins and realizing the setting of the component ID have become a technical problem to be solved in the field. SUMMARY

[0007] Therefore, the embodiment of the present application provides a radio frequency circuit and an electronic device without adding pins, only using conventional pins, realizing the configuration of the ID of the circuit without adding pins. The radio frequency circuit and the electronic device provided by the embodiment of the present application are realized as follows:

[0008] The first aspect of the embodiment of the present application provides a radio frequency circuit, which comprises a radio frequency control chip, a radio frequency module, and a radio frequency circuit identification setting module; the radio frequency control chip comprises a power supply pin and a radio frequency circuit identification pin; the radio frequency module comprises a radio frequency port; the radio frequency control chip is connected with the radio frequency module through a control line; a first end of the radio frequency circuit identification setting module is connected with the power supply pin; a second end of the radio frequency circuit identification setting module is connected with the radio frequency circuit identification pin; a third end of the radio frequency circuit identification setting module is connected with the radio frequency port; and a fourth end of the radio frequency circuit identification setting module is used for sending a radio frequency signal to a peripheral circuit of the radio frequency circuit; the radio frequency circuit identification setting module outputs a voltage to the radio frequency circuit identification pin according to a grounding state of the fourth end, so as to set the radio frequency circuit identification of the radio frequency circuit.

[0009] In some embodiments, the radio frequency circuit identification setting module comprises an isolation module and a voltage boosting module; one end of the voltage boosting module is connected with the power supply pin; the other end of the voltage boosting module is connected with a first end of the isolation module; a second end of the isolation module is connected with the radio frequency circuit identification pin; a third end of the isolation module is connected with the radio frequency port; a fourth end of the isolation module is used for sending a radio frequency signal to a peripheral circuit of the radio frequency circuit; the voltage boosting module is used for boosting the voltage obtained by the isolation module from the power supply pin, limiting the current of the isolation module, and the isolation module is used for preventing the radio frequency port from obtaining the voltage from the power supply pin and preventing the radio frequency port from outputting a radio frequency signal to the radio frequency circuit identification pin.

[0010] In some embodiments, the isolation module comprises a direct-current blocking capacitor and an isolation inductor; one end of the direct-current blocking capacitor is connected with the radio frequency port; the other end of the direct-current blocking capacitor is connected with a first end of the isolation inductor; a second end of the isolation inductor is connected with the radio frequency circuit identification pin; and a third end of the isolation inductor is connected with the voltage boosting module.

[0011] In some embodiments, the voltage boosting module comprises a pull-up resistor; one end of the pull-up resistor is connected with the power supply pin; and the other end of the pull-up resistor is connected with the isolation module and the radio frequency circuit identification pin.

[0012] In some embodiments, the number of the radio frequency circuit identification pins is at least one, the number of the radio frequency ports is at least one, the at least one radio frequency circuit identification pin corresponds to the at least one radio frequency port one by one, and each radio frequency circuit identification pin and the corresponding radio frequency port are connected through the radio frequency circuit identification setting module. In some embodiments, the radio frequency module is a radio frequency switch.

[0013] In some embodiments, the value of the direct-current blocking capacitor is 30-35 pF.

[0014] In some embodiments, the isolation inductance is 18nH-100nH.

[0015] In some embodiments, the pull-up resistance is 10kΩ-100kΩ.

[0016] The second aspect of the embodiments of the present application provides an electronic device, including the radio frequency circuit in any one of the first aspect of the present application.

[0017] The radio frequency circuit and the electronic device provided by the embodiments of the present application, the radio frequency circuit identification setting module transmits the radio frequency signal to the peripheral circuit through the third end and the fourth end, and the fourth end is also connected to the second end to set the voltage of the radio frequency circuit identification pin. The radio frequency circuit not only transmits the radio frequency signal through the radio frequency pin, but also changes the voltage set to the radio frequency circuit identification pin through the radio frequency pin, realizes the multiplexing of the radio frequency pin, and the above-mentioned radio frequency circuit does not add new pins, and the pins used are all conventional pins, which realizes the configuration of the ID of the circuit without adding new pins, thereby solving the technical problems proposed in the background art. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming a part of the specification, the drawings show the embodiments consistent with the present application, and together with the specification, are used to illustrate the technical solutions of the present application.

[0019] Figure 1 A circuit schematic diagram of an RFFE slave Device in a related technology is provided for the embodiments of the present application;

[0020] Figure 2 A first circuit schematic diagram of the radio frequency circuit is provided for the embodiments of the present application;

[0021] Figure 3 A second circuit schematic diagram of the radio frequency circuit is provided for the embodiments of the present application;

[0022] Figure 4 A third circuit schematic diagram of the radio frequency circuit is provided for the embodiments of the present application;

[0023] Figure 5 A fourth circuit schematic diagram of the radio frequency circuit is provided for the embodiments of the present application;

[0024] Figure 6 A circuit schematic diagram of the electronic device is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application, but are not used to limit the scope of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification is for describing the embodiments of the present application only and is not intended to limit the present application.

[0027] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments, but it is understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0028] It should be noted that the terms "first", "second", "third" involved in the embodiments of the present application are used to distinguish similar or different objects, and do not represent a specific order of the objects. Understandably, "first", "second", "third" can be interchanged with a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0029] In electronic devices and small electronic systems, internal components are identified and distinguished by various IDs. For example, radio frequency front-end devices (RFFE) of mobile devices such as mobile phones increasingly use MIPI RFFE interfaces as control interfaces of radio frequency front-end devices (RFFE). MIPI refers to the Mobile Industry Processor Interface (MIPI) protocol. When using the MIPI protocol to control radio frequency devices, each radio frequency device needs to have a USID (Unique Slave Identifier) for MIPI to identify the radio frequency device. Moreover, there cannot be radio frequency devices with the same USID on a group of MIPI lines, i.e., there can be only one radio frequency device of the same type on a group of MIPI lines.

[0030] The MIPI RFFE interface has a RFFE Master Interface and a RFFE slave Interface. The RFFE Master Interface controls the action of the RFFE slave Device, so that the corresponding device of the RFFE slave Device can work normally. One RFFE Master Interface can control multiple RFFE slave Devices at the same time, so a Unique Slave Identifier (USID) is used to distinguish different RFFE slave Devices. Figure 1 The present application shows a circuit schematic diagram of a RFFE slave Device in the related art, as shown in Figure 1 The RFFE slave Device of U1 includes a slave MIPI controller 110 and a radio frequency device 120.

[0031] In the related art, a Unique Slave Identifier (USID) is set for U1 in Figure 1 to distinguish different RFFE slave Devices. There are two specific methods:

[0032] The first method is to make two or more USIDs for the same device. This method requires setting an ID pin on U1 to read the output of the USID from the slave MIPI controller 110. The disadvantage of this method is that there are several devices with only different USIDs, i.e. several products need to be produced, the functions are the same, only the USIDs are different, so the product types are increased, and the products cannot be replaced, which is easy to cause idle materials. On many simple devices, the pins are few, and there is no place to place more ID pins. If the ID pin must be added, the size of the device will be increased, which will cause waste of device design.

[0033] The second method is to design an ID pin on the device, and apply high / low level to the USID from the slave MIPI controller 110 through the ID pin, so as to realize different USIDs through high level and low level to distinguish the device. The disadvantage of this method is that there are too many ID pins, up to 4 ID pins, which is easy to cause too many pins of the device and too large area.

[0034] Therefore, the present application provides a radio frequency circuit, which does not add new pins and only uses conventional pins to configure the ID of the circuit without adding new pins.

[0035] Figure 2 The first circuit schematic diagram of the radio frequency circuit provided by the embodiment of the present application is shown in the figure. Figure 2 As shown in the figure, the radio frequency circuit 200 comprises a radio frequency control chip 210, a radio frequency module 220, and a radio frequency circuit identification setting module 230. The radio frequency control chip comprises a power supply pin and a radio frequency circuit identification pin. The radio frequency module comprises a radio frequency port. The radio frequency control chip is connected with the radio frequency module through a control line.

[0036] For example, the radio frequency circuit 200 in the present application takes the RFFE slave Device U1 shown in the figure as an example for illustration. Those skilled in the art can understand that the example is only for illustration and does not limit the scope of the present application. Figure 1 As shown in the figure, the radio frequency control chip 210 comprises a power supply pin VIO and a radio frequency circuit identification pin USID. The power supply pin VIO is used to accept an external power supply to supply power to the radio frequency control chip 210. The radio frequency circuit identification pin USID is used to accept an external level to set the identification of the radio frequency circuit. Figure 2

[0037] In addition to the power supply pin VIO, the radio frequency control chip 210 can also comprise some other conventional pins, such as a pulse pin SCLK and a data pin SDATA.

[0038] The radio frequency module 220 comprises a radio frequency port RF, which is used to transmit a radio frequency signal.

[0039] In addition to the radio frequency port RF, the radio frequency module 220 can also comprise some other conventional pins, such as the common end ANT of the RF.

[0040] The radio frequency control chip 210 is connected with the radio frequency module 220 through a control line, so that the radio frequency control chip 210 controls the radio frequency module 220.

[0041] The first end of the radio frequency circuit identification setting module 230 is connected with the power supply pin VIO, so that the radio frequency circuit identification setting module and the power supply pin accept an external power supply together. As shown in the figure, the radio frequency circuit identification setting module 230 and the power supply pin VIO are both connected to the power supply input port of the radio frequency circuit 200 to accept power supply together. Figure 2 The second end of the radio frequency circuit identification setting module 230 is connected with the radio frequency circuit identification pin USID. The third end of the radio frequency circuit identification setting module 230 is connected with the radio frequency port RF. The fourth end of the radio frequency circuit identification setting module 230 is used to transmit a radio frequency signal to the peripheral circuit of the radio frequency circuit.

[0042]

[0043] ​​The radio frequency circuit identification setting module outputs a voltage to the radio frequency circuit identification pin USID according to the grounding state of the fourth end, so as to set the radio frequency circuit identification of the radio frequency circuit.

[0044] The radio frequency circuit identification setting module receives the radio frequency signal of the radio frequency module through the third end, and then sends the radio frequency signal to the outside of the radio frequency circuit through the fourth end. Since the radio frequency circuit can only send the radio frequency signal to the outside through a transmitting pin, usually a radio frequency pin, the radio frequency circuit identification setting module needs to be connected to the radio frequency pin to send the radio frequency signal, so that the radio frequency circuit identification setting module will be connected to the radio frequency pin of the radio frequency circuit 200 without blocking the output of the radio frequency signal.

[0045] Since the fourth end of the radio frequency circuit identification setting module is connected to the radio frequency pin of the radio frequency circuit 200, it can detect the grounding state of the radio frequency pin, that is, it can detect whether the radio frequency pin is grounded or floating.

[0046] When the radio frequency pin is grounded, the fourth end will also be grounded, and the radio frequency circuit identification setting module will directly output the power supply received by the first end through the fourth end to form a direct current ground. The radio frequency circuit identification pin cannot receive a voltage, and a setting of the radio frequency circuit identification of the radio frequency circuit is realized.

[0047] When the radio frequency pin is floating, the fourth end cannot be grounded and cannot form a direct current ground. The radio frequency circuit identification setting module outputs the power supply received by the first end to the radio frequency circuit identification pin through the second end. The radio frequency circuit identification pin receives a voltage, and another setting of the radio frequency circuit identification of the radio frequency circuit is realized.

[0048] For example, two identifications 0 and 1 are configured to distinguish two different radio frequency circuits. The radio frequency circuit identification pin receives a low level as 0 and a high level as 1, so that each radio frequency circuit can be assigned an identification according to the on-off state of the radio frequency port, and distinguished. For example, two radio frequency circuits are needed in a certain device. The radio frequency of the first position is grounded, and the radio frequency of the second position is floating. When U1 and U2 are connected, when U1 is set to the first position, the radio frequency pin of U1 is grounded, and the radio frequency circuit identification pin USID does not receive a voltage, which is a low level. The identification of U1 is set to 0. When U2 is set to the second position, the radio frequency pin of U2 is floating, and the radio frequency circuit identification pin USID receives a voltage, which is a high level. The identification of U2 is set to 1, and U1 and U2 are distinguished.

[0049] Those skilled in the art can understand, through the above technical solutions, that the configuration and debugging of the identifier should be combined with the matching debugging, and both the radio frequency performance and the logic of the identifier should be taken into account. For example, in some embodiments of the present application, the above grounding and suspension can be a relative state. For example, when the peripheral circuit of the radio frequency circuit is not absolutely grounded, the power supply of the radio frequency circuit can be raised to make the fourth end realize relative grounding.

[0050] Through the above radio frequency circuit, the radio frequency circuit identifier setting module transmits the radio frequency signal to the peripheral circuit through the third end and the fourth end, and the fourth end is also connected to the second end to set the voltage of the radio frequency circuit identifier pin. The radio frequency circuit not only transmits the radio frequency signal through the radio frequency pin, but also changes the voltage setting to the radio frequency circuit identifier pin through the radio frequency pin, realizes the multiplexing of the radio frequency pin, and realizes the configuration of the ID of the circuit without adding new pins.

[0051] In an embodiment of the present application, the radio frequency circuit identifier setting module includes an isolation module and a boost module. One end of the boost module is connected with the power supply pin, the other end of the boost module is connected with the first end of the isolation module, the second end of the isolation module is connected with the radio frequency circuit identifier pin, the third end of the isolation module is connected with the radio frequency port, and the fourth end of the isolation module is used to send the radio frequency signal to the peripheral circuit of the radio frequency circuit. The boost module is used to raise the voltage obtained by the isolation module from the power supply pin and limit the current of the isolation module. The isolation module is used to prevent the radio frequency port from obtaining voltage from the power supply pin and to prevent the radio frequency port from outputting the radio frequency signal to the radio frequency circuit identifier pin. Figure 3 Figure 3 The second circuit schematic diagram of the radio frequency circuit is provided for the embodiments of the present application. As shown in Figure 3 , the radio frequency circuit identifier setting module 230 includes an isolation module 320 and a boost module 310. One end of the boost module 310 is connected with the power supply pin, the other end of the boost module 310 is connected with the first end of the isolation module, and the boost module is used to embed the input uncertain input signal at a high level, while limiting the current, thereby raising the voltage obtained by the isolation module and limiting the current of the isolation module.

[0052] As shown in Figure 3 , the second end of the isolation module is connected with the radio frequency circuit identifier pin, the third end of the isolation module is connected with the radio frequency port, and the fourth end of the isolation module is used to send the radio frequency signal to the peripheral circuit of the radio frequency circuit. The isolation module is used to prevent the radio frequency port from obtaining voltage from the power supply pin and to prevent the radio frequency port from outputting the radio frequency signal to the radio frequency circuit identifier pin.

[0053] ​In order to make the RF circuit identification setting module output voltage to the RF circuit identification pin only when the RF pin is floating, the isolation module needs to prevent the RF port from outputting RF signals to the RF circuit identification pin. Otherwise, when the RF port outputs RF signals, the RF circuit identification pin will receive voltage.

[0054] At the same time, in order to enable the RF port to output RF signals normally, the isolation module needs to prevent the voltage received by the first end from being transmitted to the RF port.

[0055] Optionally, the isolation module includes a DC blocking capacitor and an isolation inductor; one end of the DC blocking capacitor is connected to the RF port, and the other end of the DC blocking capacitor is connected to the first end of the isolation inductor; the second end of the isolation inductor is connected to the RF circuit identification pin, and the third end of the isolation inductor is connected to the boost module.

[0056] Optionally, the boost module includes a pull-up resistor; one end of the pull-up resistor is connected to the power pin, and the other end of the pull-up resistor is connected to the isolation module and the RF circuit identification pin.

[0057] like Figure 4 As shown, Figure 4 This is a third circuit diagram of the radio frequency circuit provided in the embodiment of the present application. Figure 4 The isolation module includes a DC-blocking capacitor 422 and an isolation inductor 421. One end of the DC-blocking capacitor is connected to the RF port, and the other end of the DC-blocking capacitor is connected to the first end of the isolation inductor. Because capacitors block DC and pass AC, the voltage received by the first end cannot be transmitted to the RF port. However, the RF signal output by the RF port is transmitted normally through the capacitor to the RF pin.

[0058] The second end of the isolation inductor 421 is connected to the RF circuit identification pin, and the third end of the isolation inductor is connected to the boost module. Because the inductor blocks AC and passes DC, the RF signal output from the RF port will not pass through and can only be transmitted to the RF pin. However, the voltage received by the first end can be transmitted normally through the inductor to the RF pin.

[0059] like Figure 4 , a boost module pull-up resistor 410; one end of the pull-up resistor is connected to the power pin, and the other end of the pull-up resistor is connected to the isolation module and the RF circuit identification pin.

[0060] In one embodiment of the present application, the RF circuit identification pin includes at least one, the RF port includes at least one, at least one RF circuit identification pin corresponds one-to-one to at least one RF port, and each RF circuit identification pin is connected to the corresponding RF port through a RF circuit identification setting module.

[0061] like Figure 5 As shown, Figure 5A fourth circuit schematic diagram of a radio frequency circuit is provided in the embodiments of the present application. In the fourth circuit schematic diagram, the radio frequency circuit identification pins include at least one, Figure 5 In the radio frequency control chip 210, two radio frequency circuit identification pins, USID1 and USID2, are exemplarily shown. Each of the radio frequency circuit identification pins needs to be connected to a radio frequency port. The radio frequency port can be any one of the radio frequency modules. The radio frequency circuit identification pins and the radio frequency ports are in one-to-one correspondence, that is, each radio frequency circuit identification pin can be connected to only one radio frequency port, and each radio frequency port can be connected to only one radio frequency circuit identification pin. Figure 5 In the radio frequency module 220, four radio frequency ports, RF1, RF2, RF3 and RF4, are exemplarily shown. Each radio frequency circuit identification pin is connected to a corresponding radio frequency port through a radio frequency circuit identification setting module, Figure 5 In the radio frequency circuit identification setting module shown in the fourth circuit schematic diagram, Figure 4 It can be understood by those skilled in the art that the example is only illustrative and does not limit the scope of the present application, Figure 5 The radio frequency circuit identification setting module in the fourth circuit schematic diagram can be Figures 2 to 4 Any one of the above.

[0062] Optionally, the radio frequency module is a radio frequency switch. Figure 5 In the fourth circuit schematic diagram, the radio frequency module 220 is shown as a SP4T radio frequency switch.

[0063] Optionally, the value of the DC blocking capacitor is 30-35 pF. Optionally, the value of the isolation inductor is 18 nH-100 nH.

[0064] Figure 5 The radio frequency circuit shown in the fourth circuit schematic diagram can set the identification to multiple bits, thereby distinguishing more than two radio frequency circuits. In the example, Figure 5 In the fourth circuit schematic diagram, the high level of USID1 and USID2 corresponds to 1, and the low level corresponds to 0. According to the low level or high level received by USID1 and USID2, there are four kinds of identification, 0 0, 0 1, 1, 0 and 1 1, thereby four radio frequency circuits can be distinguished. It can be understood that the number of radio frequency circuit identification pins and the number of radio frequency ports can be set according to the number of radio frequency circuits. In the example, the number of radio frequency circuit identification pins is increased to four, Figure 5 In the fourth circuit schematic diagram, the radio frequency circuit identification pins are four, and all the four radio frequency ports of the radio frequency module are connected. Then, 2 4 = 16 kinds of identification can be set to distinguish 16 radio frequency circuits.

[0065] An embodiment of the present application provides an electronic device, comprising the radio frequency circuit of any embodiment. During implementation, the electronic device may be any type of device with information processing capabilities. For example, the electronic device may be a mobile terminal, such as a personal computer, a mobile phone, a car computer, a tablet computer, a projector, a laptop computer, a PDA, or a portable wearable device. The electronic device may also be a large computing terminal, such as a server, which may be implemented as a standalone server or a server cluster consisting of multiple servers.

[0066] For example, Figure 6 As shown, Figure 6 This is a circuit diagram of an electronic device provided in an embodiment of the present application. Figure 6 Electronic device 600 includes a master MIPI controller and three slave MIPI controllers: U1, U2, and U3. Because the grounding conditions of the RF ports of each slave MIPI controller are different, each slave MIPI controller is assigned a different identifier, allowing the master MIPI controller to distinguish the three slave MIPI controllers.

[0067] Figure 6 China-Israel Figure 5 The radio frequency circuit shown is described as an example. Those skilled in the art will understand that this example is only for illustration and does not limit the scope of this application. Figure 6 The RF circuit in Figures 2 to 5 Any one of them.

[0068] Those skilled in the art will understand that the structure shown above is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0069] It should be understood that the term "one embodiment" or "an embodiment" or "some embodiments" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" or "in some embodiments" in various places throughout the specification are not necessarily referring to the same embodiment. Further, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that the sequence of steps in the above-described processes is not meant to limit the order of execution unless otherwise expressly limited, and the steps can be executed in any order, unless otherwise expressly limited. The above-described embodiments of the application are intended to be illustrative only. Changes can be made by one skilled in the art, which are within the scope of the application. As indicated, although practices can be emphasized in the above description of embodiments, the same or equivalent practices can be implemented in other embodiments. In order to avoid unnecessarily obscuring the disclosure, descriptions of all such practices are not necessarily repeated in each embodiment. Therefore, the foregoing description is not intended to be exhaustive or to limit the application to the precise forms disclosed. In some embodiments, well-known methods, procedures and components have not been described in detail in order to avoid unnecessarily obscuring the application. As well, the above-mentioned description is intended to cover any alternatives, adaptations or variations of embodiments of the present application. Therefore, although the application has been described in considerable detail with reference to certain embodiments thereof, other embodiments of the application are possible. Therefore, the scope of the embodiments should not be limited to the specific discussed embodiments. The intention is to conform with the principles and various embodiments and examples of the present application. Further, it is intended that each embodiment and example be within the scope of the present application. Accordingly, many modifications and variations will be apparent to practitioners of ordinary skill in the art. Additionally, it is intended that the application encompass all such modifications and variations as fall within the scope of the appended claims. Such claims can refer to other claims and provide additional claims depending to other claims to provide a better understanding of the natural breadth of the application. Accordingly, none of the above-mentioned embodiments is intended to be limiting, but rather a supplement to what is explicitly described. Thus, the true scope of the embodiments is not to be limited to any single embodiment described herein. Rather, many alterations, modifications, and variations will be apparent to those of ordinary skill in the art. Accordingly, it is to be understood that the application can embrace any alterations, modifications, and variations that fall within the scope of the appended claims. In addition, where possible, the descriptions of the various embodiments of the present application have been presented in terms of procedures, logic blocks, processing, and other symbolic representations of operational processes that are performed by a computer. These descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. These computer program instructions are the means used by a computer to perform the processes and operations described herein. The present application, as described herein, can be embodied in a variety of other forms, all of which have been contemplated to be within the scope of the intended application. Further, each of the embodiments of the present application can be implemented by hardware, software, firmware or any combination thereof. Any features described as being implemented by hardware or software are considered to be equally implemented by a combination of hardware and software, unless specifically stated otherwise. The various embodiments described herein can be implemented in a computer program product tangibly embodied in a machine-readable storage medium (e.g., memory element) including, but not limited to, a magnetic medium, optical medium, memory chip, or any suitable combination thereof. The computer program product can be executed by one or more processing devices, such as a computer or any suitable processing device.

[0070] The term "and / or", as used herein, merely describes association between associated objects, and can indicate that three cases can exist, for example, object A and / or object B can indicate that object A exists alone, object A and object B exist together, and object B exists alone.

[0071] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an occurrence of the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0072] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The above-described embodiments are merely illustrative. For example, the division of modules is only a logical functional division, and actual implementation can have another division manner. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed components can be indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0073] The modules described above as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; they can be located in one place or distributed on multiple network units; and part or all of the modules can be selected as needed to achieve the purposes of the embodiments.

[0074] In addition, the functional modules in the embodiments of the present application can be integrated in one processing unit, or each module can be a separate unit, or two or more modules can be integrated in one unit; the integrated modules can be realized in the form of hardware or in the form of hardware plus software functional units.

[0075] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction-related hardware, and the aforementioned program can be stored in a computer-readable storage medium, and the program executes the steps including the above-mentioned method embodiments when executed; and the aforementioned storage medium includes mobile storage devices, read-only memories (ROM), magnetic discs or optical discs, and various storage medium that can store program codes.

[0076] Alternatively, the integrated units of the present application, if implemented in the form of software functional modules and sold or used as independent products, can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products, and the computer software products are stored in a storage medium, including a number of instructions to make an electronic device execute all or part of the method embodiments of the present application. The aforementioned storage medium includes mobile storage devices, ROM, magnetic discs or optical discs, and various storage medium that can store program codes.

[0077] The methods disclosed in the several method embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments.

[0078] The features disclosed in the several product embodiments provided by the present application can be combined arbitrarily without conflict to obtain new product embodiments.

[0079] The features disclosed in the several method or device embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

[0080] The above merely illustrates the embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A radio frequency circuit, characterized by The radio frequency circuit comprises a radio frequency control chip, a radio frequency module, and a radio frequency circuit identification setting module; the radio frequency control chip comprises a power supply pin and a radio frequency circuit identification pin; the radio frequency module comprises a radio frequency port; the radio frequency control chip is connected with the radio frequency module through a control line; The first end of the radio frequency circuit identification setting module is connected with the power supply pin; The second end of the radio frequency circuit identification setting module is connected with the radio frequency circuit identification pin, the third end of the radio frequency circuit identification setting module is connected with the radio frequency port, and the fourth end of the radio frequency circuit identification setting module is used for sending a radio frequency signal to the peripheral circuit of the radio frequency circuit; The radio frequency circuit identification setting module outputs a voltage to the radio frequency circuit identification pin according to the grounding state of the fourth end, so as to set the radio frequency circuit identification of the radio frequency circuit.

2. The radio frequency circuit of claim 1, wherein, The radio frequency circuit identification setting module comprises an isolation module and a voltage boosting module; one end of the voltage boosting module is connected with the power supply pin, the other end of the voltage boosting module is connected with the first end of the isolation module, the second end of the isolation module is connected with the radio frequency circuit identification pin, the third end of the isolation module is connected with the radio frequency port, the fourth end of the isolation module is used for sending a radio frequency signal to the peripheral circuit of the radio frequency circuit, the voltage boosting module is used for boosting the voltage obtained by the isolation module from the power supply pin, limiting the current of the isolation module, and the isolation module is used for preventing the radio frequency port from obtaining voltage from the power supply pin and preventing the radio frequency port from outputting a radio frequency signal to the radio frequency circuit identification pin.

3. The radio frequency circuit of claim 2, wherein, The isolation module comprises a direct-current blocking capacitor and an isolation inductor; One end of the direct-current blocking capacitor is connected with the radio frequency port, and the other end of the direct-current blocking capacitor is connected with the first end of the isolation inductor; The second end of the isolation inductor is connected with the radio frequency circuit identification pin, and the third end of the isolation inductor is connected with the voltage boosting module.

4. The radio frequency circuit of claim 2, wherein, The voltage boosting module comprises a pull-up resistor; One end of the pull-up resistor is connected with the power supply pin, and the other end of the pull-up resistor is connected with the isolation module and the radio frequency circuit identification pin.

5. The radio-frequency circuit of claim 1, wherein The number of the radio frequency circuit identification pins is at least one, the number of the radio frequency ports is at least one, the at least one radio frequency circuit identification pin corresponds to the at least one radio frequency port one by one, and each radio frequency circuit identification pin and the corresponding radio frequency port are connected through the radio frequency circuit identification setting module.

6. The radio frequency circuit of any one of claims 1 to 5, wherein, The radio frequency module is a radio frequency switch.

7. The radio frequency circuit of claim 3, wherein, The value of the direct-current blocking capacitor is 30-35 pF.

8. The radio frequency circuit of claim 3, wherein, The value of the isolation inductor is 18 nH-100 nH.

9. The radio frequency circuit of claim 4, wherein, The value of the pull-up resistor is 10 kΩ-100 kΩ.

10. An electronic device, comprising: The radio frequency circuit comprises: The radio frequency circuit of any one of claims 1-9. The radio frequency circuit comprises:

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