Oscillation circuit design assistance method, oscillation circuit design assistance system, and oscillation circuit design assistance program

Abstract

The present invention relates to an oscillation circuit design assistance method, an oscillation circuit design assistance system, and an oscillation circuit design assistance program. The oscillation circuit design assistance method is for assisting the design of oscillation circuit conditions in a circuit board equipped with an oscillation IC chip and an oscillator, and includes: a first reception step of receiving an input of IC chip information related to the oscillation IC chip; a first provision step of providing oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; a second reception step of receiving an input of frequency measurement information measured based on the oscillation circuit condition sample data when an oscillator corresponding to the oscillator sample data is mounted on the circuit board; and a second provision step of providing information related to oscillation circuit condition suitability data determined at least based on the frequency measurement information.

Description

Technical Field

[0001] The present invention relates to an oscillation circuit design assistance method, an oscillation circuit design assistance system, and an oscillation circuit design assistance program. Background Art

[0002] Conventionally, a system for assisting in the design of the specifications of a device corresponding to customer requirements has been known. For example, in the system described in Patent Document 1, even when the specifications of a device related to some items in the specifications required by a customer are not presented, a tentative specification of a device that satisfies the specifications required by the customer is presented to the customer based on an individual database or the like. In addition, the customer corrects the tentative specification of the device by inputting the content of the change. Thereby, while suppressing the number of exchanges with the customer, the specifications of the device are determined.

[0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2018-77748

[0004] However, in the manufacturing process of a circuit board, first, an IC (semiconductor element) to be mounted on the circuit board is selected according to customer requirements, and then an oscillation circuit is designed. When designing an oscillation circuit, for example, oscillation circuit conditions are set in consideration of the stray capacitance (capacitance) of the oscillation circuit generated for each circuit board. The oscillation circuit conditions include parameters such as the capacitance value of the capacitor of the oscillation circuit, the resistance value of the resistor, the load capacitance of the oscillator, the ESR standard value, and the negative resistance value of the IC.

[0005] Here, in the case of setting the oscillation circuit conditions of the circuit board in consideration of the stray capacitance of the oscillation circuit generated for each circuit board, for example, it is possible to consider submitting the circuit board to an external company to commission the optimization of the oscillation circuit, and setting the optimized oscillation circuit conditions based on the results.

[0006] However, in the case of submitting the circuit board to an external company, there are also aspects that are inappropriate for the customer, such as the possibility of leaking information related to the circuit board, and further improvement is required. Summary of the Invention

[0007] The present invention has been made in view of such circumstances, and an object thereof is to provide an oscillation circuit design assistance method, an oscillation circuit design assistance system, and an oscillation circuit design assistance program that can both suppress the leakage of information related to a circuit board to the outside and optimize the oscillation circuit.

[0008] An oscillation circuit design assistance method according to one aspect of the present invention is an oscillation circuit design assistance method for assisting in the design of oscillation circuit conditions in a circuit board equipped with an oscillation IC chip and an oscillator, including: a first reception step of receiving an input of IC chip information related to the oscillation IC chip; a first provision step of providing oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; a second reception step of receiving an input of frequency measurement information measured based on the oscillation circuit condition sample data when an oscillator corresponding to the oscillator sample data is mounted on the circuit board; and a second provision step of providing information related to oscillation circuit condition suitability data determined based on at least the frequency measurement information.

[0009] According to the present invention, it is possible to suppress the leakage of information related to the circuit board to the outside and to optimize the oscillation circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. is a diagram for explaining an outline of processing of an oscillation circuit design assistance system according to an embodiment of the present invention.

[0011] Figure 2 FIG. is a block diagram showing a schematic configuration of an oscillation circuit design assistance system according to an embodiment of the present invention.

[0012] Figure 3 FIG. is a diagram showing an example of sample information related to an oscillation IC chip.

[0013] Figure 4 FIG. is a diagram showing an example of oscillation circuit conditions related to an oscillation IC chip.

[0014] Figure 5 FIG. is a diagram showing an example of frequency measurement information related to a frequency measurement value.

[0015] Figure 6 FIG. is a diagram for explaining a process flow when determining oscillation circuit conditions to be provided to a customer.

[0016] Figure 7 FIG. is a flowchart showing an example of a design assistance process for an oscillation circuit. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an oscillation circuit design assistance method, an oscillation circuit design assistance system, and an oscillation circuit design assistance program according to an embodiment of the present invention will be described with reference to the drawings. The oscillation circuit design assistance system according to this embodiment is a system that assists in designing appropriate oscillation circuit conditions in a circuit board on which an oscillation IC chip and an oscillator are mounted. In this system, input of IC chip information related to the oscillation IC chip is received from a customer. Next, oscillator sample data and oscillation circuit condition sample data determined based on the received IC chip information are provided. Then, input information including frequency measurement information is received from the customer. The frequency measurement information is information measured based on the oscillation circuit condition sample data when the oscillator corresponding to the oscillator sample data is mounted on the circuit board. Moreover, information related to oscillation circuit condition suitability data determined at least based on the frequency measurement information is provided to the customer.

[0018] Figure 1 FIG. is a diagram for explaining an outline of the processing of the oscillation circuit design assistance system according to an embodiment of the present invention. As shown in this figure, the oscillation circuit design assistance system first receives information related to the IC product number of the oscillator from the customer. In this case, the number of IC product numbers of the oscillator received from the customer can be one or more. Next, the oscillation circuit design assistance system provides the customer with an oscillator sample corresponding to each of the one or more IC product numbers received from the customer, data related to the frequency characteristics of the oscillator sample, and the oscillation circuit conditions corresponding to the oscillator sample. The oscillation circuit conditions refer to circuit conditions that define the frequency characteristics of the oscillation circuit, and are defined by parameters such as the capacitance value of the capacitor in the oscillation circuit, the resistance value of the resistor, the load capacitance of the oscillator, the ESR standard, and the internal resistance value of the oscillator IC. The customer designs the circuit board by himself / herself to have a circuit structure corresponding to the oscillation circuit conditions provided from the oscillation circuit design assistance system, mounts the oscillator provided from the oscillation circuit design assistance system on the circuit board, and measures the frequency of the oscillation circuit mounted on the circuit board. The oscillation circuit design assistance system obtains from the customer the frequency of the oscillation circuit measured by the customer, the sample number of the oscillator sample used for the measurement, and the oscillation circuit conditions used for the measurement. Moreover, the oscillation circuit design assistance system provides the customer with an oscillation circuit matching that takes into account the difference in stray capacitance of each circuit board. The oscillation circuit matching means that appropriate oscillation circuit conditions are provided to the customer as oscillation circuit condition suitability data by adjusting parameters such as the capacitance value of the capacitor in the oscillation circuit, the resistance value of the resistor, the load capacitance of the oscillator, the ESR standard, and the internal resistance value of the oscillator IC.

[0019] Figure 2It is a block diagram showing a brief configuration of an oscillation circuit design support system. As shown in this figure, the oscillation circuit design support system 100 is connected to an input device 10 and a display device 20, for example. These devices are connected to each other via a communication line, a wireless communication network, etc. In addition, Figure 2 The configuration shown is merely an example, and a part of the configuration may be omitted, or other configurations may be added.

[0020] The input device 10 is an information terminal such as a PC (personal computer), for example, and based on the input operation of a customer, inputs IC chip information related to an oscillation IC chip used as a sample into the oscillation circuit design support system 100.

[0021] The display device 20 is a liquid crystal display, for example, and displays an image representing appropriate oscillation circuit conditions generated by the oscillation circuit design support system 100 to the customer as oscillation circuit condition suitability data.

[0022] The oscillation circuit design support system 100 includes a control unit 110 and a storage unit 120, for example. The control unit 110 is implemented by a hardware processor such as a CPU (Central Processing Unit) executing a program (software). In addition, some or all of these components may be implemented by hardware (circuit unit: including circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit), or may be implemented by the cooperation of software and hardware. The program may be pre-stored in a storage device such as an HDD or a flash memory of the oscillation circuit design support system 100, or may be stored in a removable storage medium such as a DVD or a CD-ROM, and installed in the HDD or flash memory of the oscillation circuit design support system 100 by mounting the storage medium on a drive device.

[0023] The control unit 110 includes a first reception unit 112, a first provision unit 114, a second reception unit 116, and a second provision unit 118, for example.

[0024] The first receiving unit 112 receives input of IC chip information related to the oscillation IC chip from the input device 10. For example, the IC chip information is information related to the IC product number. Upon receiving the IC chip information from the input device 10, the first receiving unit 112 references the sample information DB 122 and determines sample information related to the oscillation IC chip specified by the customer. Furthermore, based on the acquired sample information, the first receiving unit 112 determines oscillation circuit conditions corresponding to the oscillation IC chip specified by the customer.

[0025] Figure 3 This figure shows an example of oscillator sample data related to an oscillation IC chip. In the example shown in this figure, the oscillator sample data includes, for example, a sample number, an oscillation frequency, and a frequency deviation ΔF from the nominal frequency. The sample number is identification information for the oscillator sample. The oscillation frequency is the oscillation frequency when driving a crystal oscillator in an oscillation circuit with a standard load capacitance. The frequency deviation ΔF of the oscillation frequency is, for example, the difference from the nominal frequency at room temperature of 25°C.

[0026] Figure 4 This figure shows an example of oscillation circuit condition sample data corresponding to an oscillator sample. In the example shown in this figure, the oscillation circuit condition sample data associates the load capacitances CL1 and CL2, feedback resistor Rf, limiting resistor Rd, power supply voltage range, and temperature range in the oscillator sample's equivalent circuit with the oscillator sample's IC name and product number.

[0027] The first providing unit 114 provides the customer with the oscillator sample data and oscillation circuit condition sample data determined by the first receiving unit 112 based on the IC chip information of the oscillation IC chip. In this case, the first providing unit 114 also instructs the customer to provide the oscillator sample. After the first providing unit 114 provides the oscillator sample data and oscillation circuit condition sample data, the customer adjusts the circuit structure of the circuit board to meet the oscillation circuit condition sample data, mounts the oscillator sample on the circuit board, and measures the frequency of the oscillation circuit. The frequency of the oscillation circuit includes the frequency output by the oscillator sample and the wireless frequency output by the antenna on the customer's board.

[0028] Figure 5This is a diagram showing an example of input information including frequency measurement information related to frequency measurement values. In the example shown in this diagram, the input information includes, for example, the sample number of the oscillator sample, the reference frequency of the oscillator sample, the load capacitances CL1 and CL2 in the equivalent circuit of the oscillator sample represented by the oscillation circuit condition sample data, and the frequency measurement value. The reference frequency is the frequency of the oscillation circuit when the circuit structure of the reference substrate is made to satisfy the oscillation circuit condition sample data and the oscillator sample is mounted on the reference substrate. The frequency measurement value is, as described above, the frequency of the oscillation circuit when the customer makes the circuit structure of their own circuit substrate satisfy the oscillation circuit condition sample data and mounts the oscillator sample on the circuit substrate. Moreover, based on the input information input by the customer, the frequency deviation ΔF of the oscillation frequency of the customer substrate is calculated.

[0029] The second receiving unit 116 receives an input of input information including frequency measurement information related to the frequency measurement value measured by the customer based on the oscillation circuit condition sample data.

[0030] When the second receiving unit 116 receives the input of the input information, the second providing unit 118 refers to the oscillation circuit matching DB 124 to determine information related to the oscillation circuit condition adaptation data. The information related to the oscillation circuit condition adaptation data is information including oscillation circuit conditions that make the characteristics of the oscillation circuit appropriate. The second providing unit 118 provides, for example, one oscillation circuit condition that optimizes the characteristics of the oscillation circuit to the customer as the oscillation circuit condition adaptation data. The second providing unit 118 may also provide the customer with candidates for multiple oscillation circuit conditions that make the characteristics of the oscillation circuit appropriate as the information related to the oscillation circuit condition adaptation data, and enable the customer to select the most suitable oscillation circuit condition from the multiple oscillation circuit conditions.

[0031] Figure 6It is a diagram showing an example of the oscillation circuit conditions registered in the oscillation circuit matching DB124. In the example shown in this diagram, three oscillation circuit conditions ("oscillation circuit condition 1", "oscillation circuit condition 2", "oscillation circuit condition 3") are registered in the oscillation circuit matching DB124. These oscillation circuit conditions correspond to the oscillation circuit conditions input by the customer or oscillation circuit conditions similar to the oscillation circuit conditions. The oscillation circuit matching DB124 shows the predicted value of the frequency deviation ΔF of the oscillation circuit when the circuit structure of the reference substrate is made to satisfy each of these oscillation circuit conditions and the oscillator sample corresponding to the sample number is mounted on the reference substrate. In this example, the second providing unit 118 compares the frequency deviation ΔF of the oscillation frequency corresponding to each of these oscillation circuit conditions, and provides the oscillation circuit condition ("oscillation circuit condition 1") with the smallest frequency deviation ΔF to the customer as the oscillation circuit condition suitability data.

[0032] In addition, in the example shown in this diagram, an example of parameter sharing of the oscillation circuit conditions registered in the oscillation circuit matching DB124 is shown, but the parameters of the oscillation circuit may also be set independently for each oscillation circuit condition. In this case, the second providing unit 118 provides the oscillation circuit condition suitability data to the customer based on the oscillation circuit condition including one or more parameters corresponding to the oscillator sample of the sample number input by the customer.

[0033] In addition, after the second providing unit 118 provides the oscillation circuit condition suitability data to the customer, it accepts the meaning display regarding whether the customer selects the provided oscillation circuit condition suitability data through the operation of the input device 10. Moreover, the second providing unit 118 differentiates and stores the past auxiliary information related to whether the oscillation circuit condition suitability data is selected for each customer in the customer information DB126. Moreover, in addition to the parameters of the oscillation circuit conditions stored in the above-mentioned oscillation circuit matching DB124, the second providing unit 118 can also consider the past auxiliary information of each customer stored in the customer information DB126 to determine the oscillation circuit condition suitability data provided to the customer.

[0034] Figure 7 It is a flowchart showing an example of the design assistance process of the oscillation circuit. For example, the process of the flowchart shown is executed triggered by the input of the IC chip information of the oscillation IC chip received by the first receiving unit 112 from the customer. Figure 7 shown in the flowchart.

[0035] As Figure 7As shown, first, the first providing unit 114 provides the customer with oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information of the oscillation IC chip received by the first receiving unit 112 (step S10). Next, the second receiving unit 116 acquires the sample number of the oscillator sample used for measurement and the oscillation frequency of the oscillation circuit measured when the customer makes the circuit structure of the circuit board satisfy the oscillation circuit condition sample data and mounts the oscillator sample on the circuit board, together with the oscillation circuit condition (step S12). Next, the second providing unit 118 determines oscillation circuit condition suitability data based on the frequency measurement information obtained in the previous step S12 and referring to the oscillation circuit matching DB 124 (step S14). Then, the second providing unit 118 provides the oscillation circuit condition suitability data determined in the previous step S14 to the customer (step S16). Thus, the processing of this flowchart ends.

[0036] The oscillation circuit design assistance system 100 according to the present embodiment receives the input of IC chip information related to the oscillation IC chip, provides oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information to the customer, and receives the input of input information including frequency measurement information related to the frequency measurement value, where the frequency measurement value is the value measured based on the oscillation circuit condition sample data when the oscillator corresponding to the oscillator sample data is mounted on the circuit board, and provides information related to oscillation circuit condition suitability data determined at least based on the frequency measurement information to the customer. Therefore, the customer does not need to submit their own circuit board to an external company, and can optimize the oscillation circuit conditions of the circuit board considering the difference in stray capacitance of each circuit board. Thus, both the leakage of information related to the circuit board to the outside can be suppressed, and the oscillation circuit can be optimized.

[0037] Hereinafter, a part or all of the embodiments of the present invention will be noted and their effects will be described. In addition, the present invention is not limited to the following notes.

[0038] According to one aspect of the present invention, there is provided an oscillation circuit design assistance method for assisting the design of oscillation circuit conditions in a circuit board equipped with an oscillation IC chip and an oscillator, including: a first receiving step of receiving the input of IC chip information related to the oscillation IC chip; a first providing step of providing oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; a second receiving step of receiving the input of frequency measurement information measured based on the oscillation circuit condition sample data when the oscillator corresponding to the oscillator sample data is mounted on the circuit board; and a second providing step of providing information related to oscillation circuit condition suitability data determined at least based on the frequency measurement information.

[0039] As one mode, in the above-described first provision process, in addition to the oscillator sample data and the oscillation circuit condition sample data, provision of oscillator samples is also instructed.

[0040] As one mode, the IC chip information is information related to the product number of the IC.

[0041] As one mode, in the second reception process, in addition to the frequency measurement information, input of the oscillator sample data of the oscillator used for the measurement of the frequency and the oscillation circuit condition sample data for the measurement of the frequency measurement information is also received.

[0042] As one mode, in the second provision process, oscillation circuit condition suitability data is provided.

[0043] As one mode, a process of acquiring past auxiliary information for designing the auxiliary oscillation circuit condition is also included, and at least one of the first provision process and the second provision process is performed based on the past auxiliary information.

[0044] According to one mode of the present invention, there is provided an oscillation circuit design assistance system, which is an oscillation circuit design assistance device for assisting in the design of the oscillation circuit condition in a circuit board equipped with an oscillation IC chip and an oscillator, and includes: a first reception unit that receives input of IC chip information related to the oscillation IC chip; a first provision unit that provides oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; a second reception unit that receives input of frequency measurement information related to a frequency measurement value, the frequency measurement value being a value measured based on the oscillation circuit condition sample data when the oscillator corresponding to the oscillator sample data is mounted on the circuit board; and a second provision unit that provides information related to oscillation circuit condition suitability data determined based on at least the frequency measurement information.

[0045] According to one mode of the present invention, there is provided an oscillation circuit design assistance program that causes a computer to execute the following processes: a first reception process that receives input of IC chip information related to the oscillation IC chip; a first provision process that provides oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; a second reception process that receives input of frequency measurement information related to a frequency measurement value, the frequency measurement value being a value measured based on the oscillation circuit condition sample data when the oscillator corresponding to the oscillator sample data is mounted on the circuit board; and a second provision process that provides information related to oscillation circuit condition suitability data determined based on at least the frequency measurement information.

[0046] As described above, according to one mode of the present invention, it is possible to suppress leakage of information related to the circuit board to the outside and to optimize the oscillation circuit.

[0047] In addition, the embodiments described above are for easily understanding the content of the present invention, and are not for limiting and interpreting the content of the present invention. The present invention can be changed / improved without departing from its gist, and its equivalents are also included in the present invention. That is, as long as the structure obtained by appropriately applying design changes to each embodiment by those skilled in the art has the features of the present invention, it is also included in the scope of the present invention. For example, each element and its configuration, material, condition, shape, size, etc. possessed by each embodiment are not limited to the illustrated content and can be appropriately changed. In addition, as long as each element possessed by each embodiment is technically feasible, they can be combined, and the structure after such combination is included in the scope of the present invention as long as it includes the features of the present invention.

[0048] Description of Reference Numerals

[0049] 10... Input device; 20... Display device; 100... Oscillation circuit design assistance system; 110... Control unit; 112... First receiving unit; 114... First providing unit; 116... Second receiving unit; 118... Second providing unit; 120... Storage unit; 122... Sample information DB; 124... Oscillation circuit matching DB; 126... Customer information DB.

Claims

1. An oscillation circuit design assistance method is an oscillation circuit design assistance method for assisting in the design of oscillation circuit conditions in a circuit board equipped with an oscillation IC chip and an oscillator, including: A first reception process for receiving an input of IC chip information related to the oscillation IC chip; A first provision process for providing oscillator sample data and oscillation circuit condition sample data determined based on the above IC chip information; A second reception process for receiving an input of frequency measurement information measured based on the above oscillation circuit condition sample data when an oscillator corresponding to the above oscillator sample data is mounted on the circuit board; And A second provision process for providing information related to specific oscillation circuit condition data determined at least based on the above frequency measurement information.

2. The oscillation circuit design assistance method according to claim 1, wherein In the above first provision process, in addition to the oscillator sample data and the oscillation circuit condition sample data, an oscillator sample is also indicated to be provided.

3. The oscillation circuit design assistance method according to claim 1, wherein The above IC chip information is information related to the product number of the oscillation IC chip.

4. The oscillation circuit design assistance method according to claim 2, wherein The above IC chip information is information related to the product number of the oscillation IC chip.

5. The oscillation circuit design assistance method according to any one of claims 1 to 4, wherein In the above second reception process, in addition to the above frequency measurement information, an input of the oscillator sample data of the above oscillator used for frequency measurement and the oscillation circuit condition sample data used for frequency measurement is also received.

6. The oscillation circuit design assistance method according to any one of claims 1 to 4, wherein In the above second provision process, the above specific oscillation circuit condition data is provided.

7. The oscillation circuit design assistance method according to claim 5, wherein In the above second provision process, the above specific oscillation circuit condition data is provided.

8. The oscillation circuit design assistance method according to claim 6, wherein It further includes a process of obtaining past assistance information for assisting in the design of the above oscillation circuit conditions, and at least one of the above first provision process and the above second provision process is provided based on the above past assistance information.

9. The oscillation circuit design assistance method according to claim 7, wherein It further includes a process of obtaining past assistance information for assisting in the design of the above oscillation circuit conditions, and at least one of the above first provision process and the above second provision process is provided based on the above past assistance information.

10. The oscillation circuit design assistance method according to any one of claims 1 to 4, wherein The above oscillation circuit condition sample data independently establishes a correspondence between one or more parameters constituting the oscillation circuit conditions and each of the above oscillator sample data. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

11. The oscillation circuit design assistance method according to claim 5, wherein, The oscillation circuit condition sample data establishes a correspondence between one or more parameters constituting the oscillation circuit condition and each of the oscillator sample data independently. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

12. The oscillation circuit design assistance method according to claim 6, wherein, The oscillation circuit condition sample data establishes a correspondence between one or more parameters constituting the oscillation circuit condition and each of the oscillator sample data independently. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

13. The oscillation circuit design assistance method according to claim 7, wherein, The oscillation circuit condition sample data establishes a correspondence between one or more parameters constituting the oscillation circuit condition and each of the oscillator sample data independently. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

14. The oscillation circuit design assistance method according to claim 8, wherein, The oscillation circuit condition sample data establishes a correspondence between one or more parameters constituting the oscillation circuit condition and each of the oscillator sample data independently. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

15. The oscillation circuit design assistance method according to claim 9, wherein, The oscillation circuit condition sample data establishes a correspondence between one or more parameters constituting the oscillation circuit condition and each of the oscillator sample data independently. In the second providing step, based on oscillator sample data of the oscillator used for the measurement of the frequency measurement information in the second receiving step, one or more parameters of an oscillation circuit condition are established, and information related to the specific oscillation circuit condition data is provided.

16. An oscillation circuit design assistance system is an oscillation circuit design assistance system that assists in the design of oscillation circuit conditions in a circuit board equipped with an oscillation IC chip and an oscillator, and includes: A first reception unit that receives an input of IC chip information related to the oscillation IC chip; A first provision unit that provides oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; A second reception unit that receives an input of frequency measurement information related to a frequency measurement value, where the frequency measurement value is a value measured based on the oscillation circuit condition sample data when an oscillator corresponding to the oscillator sample data is mounted on the circuit board; and A second provision unit that provides information related to specific oscillation circuit condition data determined based at least on the frequency measurement information.

17. An oscillation circuit design assistance program product causes a computer to execute the following processes: A first reception process that receives an input of IC chip information related to the oscillation IC chip; A first provision process that provides oscillator sample data and oscillation circuit condition sample data determined based on the IC chip information; A second reception process that receives an input of frequency measurement information related to a frequency measurement value, where the frequency measurement value is a value measured based on the oscillation circuit condition sample data when an oscillator corresponding to the oscillator sample data is mounted on the circuit board; and A second provision process that provides information related to specific oscillation circuit condition data determined based at least on the frequency measurement information.

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