Miniaturized frequency synthesizer module

Abstract

The utility model provides a miniaturized frequency synthesizer module. A voltage stabilizer, a phase-locked loop and a control chip are arranged in the miniaturized frequency synthesizer module. The output end of the voltage stabilizer is connected with the phase-locked loop; the voltage stabilizer and the output end of the phase-locked loop are also connected with a control chip; the control chip is provided with an SPI interface group and an I2C interface group which are open to the outside; the control chip is further provided with a program downloading end interface. According to the utility model, flexible selection of communication modes of the frequency synthesizer module and the external control chip can be realized only by updating an internal control program, different communication requirements of clients are met, and the production period of finished products and the development period of products are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, specifically to a miniaturized frequency synthesizer module. Background Technology

[0002] There are two main types of existing miniaturized frequency synthesizers: one type does not contain a control chip, such as... Figure 1 As shown, the miniaturized frequency synthesizer A is directly controlled by an external control chip; another type uses closed-loop control with an internal control chip, eliminating the need for communication with an external control chip, such as... Figure 1 Miniaturized frequency synthesizer B.

[0003] The disadvantage of miniaturized frequency synthesizer A is that it is not flexible enough in use, and its control must rely on an external control chip to work; the disadvantage of miniaturized frequency synthesizer B is that the user cannot participate in the control of the frequency synthesizer because the frequency synthesizer completely cuts off communication with the external control chip, and it is usually used as a point frequency source. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a miniaturized frequency synthesizer module, which is achieved through the following technical solution:

[0005] A miniaturized frequency synthesizer module is disclosed, which includes a voltage regulator, a phase-locked loop (PLL), and a control chip. The output of the voltage regulator is connected to the PLL. The outputs of the voltage regulator and the PLL are also connected to the control chip. The control chip has an externally accessible SPI interface group and an I2C interface group. The control chip also has a program download interface.

[0006] Optionally or preferably, the SPI interface group can be connected to 3-4 control lines for external control units to send frequency control commands to the control chip.

[0007] Optionally or preferably, the I2C interface group can be connected to two control lines for external control units to send frequency control commands to the control chip.

[0008] Optionally or preferably, the miniaturized frequency synthesizer module is provided with a shielding cover and is formed into a whole by sealing welding.

[0009] Optionally or preferably, the volume of the miniaturized frequency synthesizer module is no greater than 20mm × 30mm × 4mm.

[0010] Based on the above technical solution, the following technical effects can be achieved:

[0011] This invention provides a miniaturized frequency synthesizer module that allows for flexible selection of communication methods between the module and external control chips simply by updating the internal control program, catering to diverse customer communication needs. Currently, this miniaturized frequency synthesizer module is in small-batch production and has been successfully applied to multiple wireless communication platforms, significantly reducing production time and product development cycles. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a miniaturized frequency synthesizer in the prior art;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0016] In a preferred embodiment:

[0017] like Figure 2 As shown:

[0018] This embodiment provides a miniaturized frequency synthesizer module, which includes a voltage regulator, a phase-locked loop (PLL), and a control chip. The output of the voltage regulator is connected to the PLL. The outputs of the voltage regulator and the PLL are also connected to the control chip. The control chip has an externally accessible SPI interface group and an I2C interface group. The control chip also has a program download interface.

[0019] Furthermore, in this embodiment, the SPI interface group can be connected to 3-4 control lines for external control units to send frequency control commands to the control chip.

[0020] Furthermore, in this embodiment, the I2C interface group can be connected to two control lines for external control units to send frequency control commands to the control chip.

[0021] Furthermore, in this embodiment, the miniaturized frequency synthesizer module is equipped with a shielding cover and is formed into a whole by sealing welding; this can minimize the mutual interference between other components and the frequency synthesizer.

[0022] Furthermore, in this embodiment, the volume of the miniaturized frequency synthesizer module is no larger than [the specified value].

[0023] 20mm×30mm×4mm.

[0024] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A miniaturized frequency synthesizer module, characterized in that: This miniaturized frequency synthesizer module includes a voltage regulator, a phase-locked loop (PLL), and a control chip. The output of the voltage regulator is connected to the PLL. The outputs of the voltage regulator and the PLL are also connected to the control chip. The control chip has an externally accessible SPI interface group and an I2C interface group. The control chip also has a program download interface.

2. The miniaturized frequency synthesizer module according to claim 1, characterized in that: The SPI interface group can be connected to 3-4 control lines, which are used for external control units to send frequency control commands to the control chip.

3. The miniaturized frequency synthesizer module according to claim 1, characterized in that: The I2C interface group can be connected to two control lines, which are used for external control units to send frequency control commands to the control chip.

4. A miniaturized frequency synthesizer module according to claim 1, characterized in that: The miniaturized frequency synthesizer module is equipped with a shielding cover and is formed into a whole through sealing welding.

5. A miniaturized frequency synthesizer module according to claim 1, characterized in that: The miniaturized frequency synthesizer module has a volume of no more than 20mm × 30mm × 4mm.

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