5032 anti-vibration and anti-impact temperature compensation quartz crystal oscillator

Abstract

The utility model relates to the technical field of quartz crystal oscillators, in particular to a 5032 anti-vibration and anti-impact temperature-compensated quartz crystal oscillator, which comprises a crystal resonator, a PCB (printed circuit board), a filter capacitor and a 5032 temperature-compensated quartz crystal oscillator base. The number of the crystal resonators is two, the two crystal resonators are respectively mounted on the surface of the PCB, the PCB is mounted on the surface of the 5032 temperature-compensation quartz crystal oscillator base, the number of the filter capacitors is two, the two filter capacitors are respectively mounted on the surface of the 5032 temperature-compensation quartz crystal oscillator base and are respectively positioned on two sides of the PCB, and the two filter capacitors are respectively positioned on the surface of the 5032 temperature-compensation quartz crystal oscillator base. The problems that when a traditional temperature compensation crystal oscillator works in a vibration environment, stable and good vibration phase noise cannot be kept all the time in the long-term use process, and meanwhile the product does not have high impact resistance are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz crystal oscillators, in particular to a 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator. Background Art

[0002] Temperature-compensated crystal oscillators (TCCs) offer high frequency stability, a compact size, and fast startup with low current draw. They are commonly used in mobile communications systems, satellite navigation, radar, television stations, automobiles, computers, and other fields for time synchronization and timing control. In the mobile communications sector, TCOs serve as the clock source for the main oscillator in mobile phones and base stations, offering fast startup, high sensitivity, and low power consumption. In satellite navigation, TCOs, beyond their basic application in timing control, can also be used for GPS signal reception, helping GPS receivers achieve low power consumption, high efficiency, and a long lifespan. With the advancement of 5G technology, the demand for Bluetooth, Wi-Fi, positioning, navigation, and other functionalities is increasing, and quartz crystal oscillators are core electronic components in 5G technology. 5G technology demands extreme precision in all aspects, necessitating the use of high-precision, high-stability TCOs to support 5G operations.

[0003] When a temperature-compensated crystal oscillator operates in a vibrating environment, the metal casing loses its conformal conformity to the quartz crystal's shape, causing the crystal to deform. This deformation then corresponds to a different resonant frequency. During vibration, the acceleration constantly changes, causing the crystal to repeatedly deform, causing the resonant frequency to fluctuate, leading to deterioration in phase noise. Traditional vibration-resistant crystal oscillators use rubber, foam, and other materials as vibration-damping supports. However, this approach increases the size of the crystal oscillator and, over time, these materials age, degrading vibration resistance and, consequently, phase noise.

[0004] At the same time, the use environment of modern military equipment, such as airborne, shipborne and missile-borne, requires the temperature compensated crystal oscillator to have both anti-vibration performance and high shock resistance.

[0005] However, when traditional temperature-compensated crystal oscillators operate in a vibration environment, they cannot maintain stable and good vibration phase noise during long-term use, and the products do not have high shock resistance. Utility Model Content

[0006] The purpose of this utility model is to provide a 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator, which solves the problem that traditional temperature-compensated crystal oscillators cannot maintain stable and good vibration phase noise during long-term use when working in a vibration environment, and the product does not have high shock resistance.

[0007] To achieve the above objectives, the present invention provides a 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator, comprising a crystal resonator, a PCB board, a filter capacitor and a 5032 temperature-compensated quartz crystal oscillator base; the number of the crystal resonators is two, and the two crystal resonators are respectively mounted on the surface of the PCB board, and the PCB board is mounted on the surface of the 5032 temperature-compensated quartz crystal oscillator base; the number of the filter capacitors is two, and the two filter capacitors are respectively mounted on the surface of the 5032 temperature-compensated quartz crystal oscillator base and are respectively located on both sides of the PCB board.

[0008] Wherein, two resonator pads and a circuit for connecting the two resonators in parallel are provided on the front side of the PCB board.

[0009] Wherein, four mounting pads are provided on the back side of the PCB board.

[0010] Among them, the 5032 temperature-compensated quartz crystal oscillator base is provided with two filter capacitor pads and a PCB board pad on the front side, and four fixed pads on the back side.

[0011] A groove is provided on the side of the base of the 5032 temperature-compensated quartz crystal oscillator, and a positioning pad is provided on the inner side of the groove.

[0012] The utility model discloses a 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator. Because a single-crystal 5032 temperature-compensated oscillator exhibits poor phase noise when operating in a vibration environment, the PCB is designed so that two crystal resonators are connected in parallel. Two crystal resonators are selected with matching parameters across all temperatures. The acceleration sensitivities of the two crystal resonators are one positive and one negative, respectively. After parallel connection, the acceleration sensitivities of the two crystal resonators are added together to eliminate the acceleration sensitivity. Furthermore, the crystal resonator itself has a low product mass and a small chip size, and has good tolerance in high-shock environments. The product reliability can be increased and the vibration resistance of the product can be improved. During installation, the two crystal resonators are mounted on the PCB board provided with a crystal oscillator parallel circuit, and then the mounted PCB board and the two filter capacitors are mounted together on the corresponding pads of the 5032 temperature-compensated quartz crystal oscillator base to form the product. The 5032 vibration-resistant temperature-compensated quartz crystal oscillator using the dual-crystal parallel structure has the advantages of high stability, ultra-low phase noise and good vibration phase noise, which solves the problem that the traditional temperature-compensated crystal oscillator cannot maintain stable and good vibration phase noise when working in a vibration environment and cannot maintain stable and good vibration phase noise during long-term use, and the product does not have high shock resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0014] Figure 1 This is a schematic diagram of the front and back structures of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of the first embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the front and back structures of the PCB board of the first embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the front and back structures of the 5032 temperature-compensated quartz crystal oscillator base of the first embodiment of the present utility model.

[0017] Figure 4 This is a static phase noise diagram of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of the utility model.

[0018] Figure 5 This is a vibration phase noise diagram of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of the utility model.

[0019] In the figure: 1-crystal resonator, 2-PCB board, 3-filter capacitor, 4-5032 temperature-compensated quartz crystal oscillator base, 5-resonator pad, 6-mounting pad, 7-filter capacitor pad, 8-PCB board pad, 9-fixed pad, 10-groove, 11-positioning pad. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] The first embodiment of this application is:

[0022] See also Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the front and back structures of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of the first embodiment of the present invention. Figure 2 This is a schematic diagram of the front and back structures of the PCB board of the first embodiment of the present utility model. Figure 3 This is a schematic diagram of the front and back structures of the 5032 temperature-compensated quartz crystal oscillator base of the first embodiment of the present utility model. Figure 4 This is the static phase noise diagram of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of this utility model. Figure 5This is a vibration phase noise diagram of the 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of the utility model. The utility model provides a 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator, including a crystal resonator 1, a PCB board 2, a filter capacitor 3 and a 5032 temperature-compensated quartz crystal oscillator base 4; the above-mentioned solution solves the problem that traditional temperature-compensated crystal oscillators cannot maintain stable and good vibration phase noise during long-term use when working in a vibration environment, and the product does not have high shock resistance.

[0023] In this specific embodiment, the number of the crystal resonators 1 is two, and the two crystal resonators 1 are respectively mounted on the surface of the PCB board 2, and the PCB board 2 is mounted on the surface of the 5032 temperature-compensated quartz crystal oscillator base 4. The number of the filter capacitors 3 is two, and the two filter capacitors 3 are respectively mounted on the surface of the 5032 temperature-compensated quartz crystal oscillator base 4 and are respectively located on both sides of the PCB board 2. The crystal resonator 1 is a 2016 crystal resonator 1. The single crystal 5032 temperature-compensated oscillator has poor phase noise when operating in a vibration environment. Therefore, the PCB board 2 is designed so that the two crystal resonators 1 are connected in parallel. Two crystal resonators 1 with matching parameters across all temperatures are selected. The acceleration sensitivities of the two crystal resonators 1 are respectively one positive and one negative. After being connected in parallel, the acceleration sensitivities of the two crystal resonators 1 are added together to eliminate the acceleration sensitivity. In addition, the crystal resonator 1 itself has a low product mass and a small chip size, and has good tolerance in high impact environments. The product reliability can be increased and the vibration resistance of the product can be improved. During installation, the two crystal resonators 1 are mounted on the PCB board 2 provided with a crystal oscillator parallel circuit, and then the mounted PCB board 2 and the two filter capacitors 3 are mounted together on the corresponding pads of the 5032 temperature-compensated quartz crystal oscillator base 4 to form the product. The 5032 vibration-resistant temperature-compensated quartz crystal oscillator using the dual-crystal parallel structure has the advantages of high stability, ultra-low phase noise and good vibration phase noise.

[0024] The front of the PCB board 2 is provided with two resonator pads 5 and a circuit for connecting the two resonators in parallel. The resonator pads 5 are used to solder the crystal resonator 1 to the front of the PCB board 2 .

[0025] Secondly, four mounting pads 6 are provided on the back of the PCB board 2 , and the mounting pads 6 are used to solder and fix the PCB board 2 to the front of the 5032 temperature-compensated quartz crystal oscillator base 4 .

[0026] Again, the front of the 5032 temperature-compensated quartz crystal oscillator base 4 is provided with two filter capacitor pads 7 and a PCB board pad 8, and the back is provided with four fixed pads 9. The filter capacitor pads 7 are used to solder the two filter capacitors 3 to the true surface of the 5032 temperature-compensated quartz crystal oscillator base 4, and the PCB board pads 8 are used to fix the pads on the back of the PCB board 2 to the front of the 5032 temperature-compensated quartz crystal oscillator base 4.

[0027] Finally, a groove 10 is provided on the side of the 5032 temperature-compensated quartz crystal oscillator base 4, and a positioning pad 11 is provided on the inner side of the groove 10. The groove 10 and the positioning pad 11 are used to weld and fix the 5032 temperature-compensated quartz crystal oscillator base 4 in a required position.

[0028] The 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator of this embodiment is used. The crystal resonator 1 is a 2016 crystal resonator 1. The single crystal 5032 temperature-compensated oscillator has poor phase noise when operating in a vibration environment. Therefore, the PCB board 2 is designed so that two crystal resonators 1 are connected in parallel. Two crystal resonators 1 with matching parameters across all temperatures are selected. The acceleration sensitivities of the two crystal resonators 1 are one positive and one negative. After parallel connection, the acceleration sensitivities of the two crystal resonators 1 are added together to eliminate the acceleration sensitivity. In addition, the crystal resonator 1 itself has a low product mass and a small chip size, and has good tolerance in high-shock environments. The product reliability can be increased and the vibration resistance of the product can be improved. During installation, the two crystal resonators 1 are mounted on the PCB board 2 provided with a crystal oscillator parallel circuit, and then the mounted PCB board 2 and the two filter capacitors 3 are mounted together on the corresponding pads of the 5032 temperature-compensated quartz crystal oscillator base 4 to form the product. The 5032 vibration-resistant temperature-compensated quartz crystal oscillator using the dual-crystal parallel structure has the advantages of high stability, ultra-low phase noise and good vibration phase noise, which solves the problem that the traditional temperature-compensated crystal oscillator cannot maintain stable and good vibration phase noise when working in a vibration environment and cannot maintain stable and good vibration phase noise during long-term use, and the product does not have high impact resistance.

[0029] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator, characterized in that: Includes crystal resonator, PCB board, filter capacitor and 5032 temperature-compensated quartz crystal oscillator base; There are two crystal resonators, and the two crystal resonators are respectively mounted on the surface of the PCB board, and the PCB board is mounted on the surface of the base of the 5032 temperature-compensated quartz crystal oscillator. There are two filter capacitors, and the two filter capacitors are respectively mounted on the surface of the base of the 5032 temperature-compensated quartz crystal oscillator and are located on both sides of the PCB board.

2. The 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator according to claim 1, characterized in that: Two resonator pads and a circuit for connecting the two resonators in parallel are provided on the front side of the PCB board.

3. The 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator according to claim 1, characterized in that: Four mounting pads are provided on the back side of the PCB board.

4. The 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator according to claim 3, characterized in that: The front side of the 5032 temperature-compensated quartz crystal oscillator base is provided with two filter capacitor pads and a PCB board pad, and the back side is provided with four fixing pads.

5. The 5032 vibration-resistant and shock-resistant temperature-compensated quartz crystal oscillator according to claim 1, characterized in that: A groove is provided on the side of the base of the 5032 temperature-compensated quartz crystal oscillator, and a positioning pad is provided inside the groove.

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