Back to results
US 12,376,223 B2Granted
Crystal oscillator circuit on PCB, PCB and server
AssigneeInspur Suzhou Intelligent Technology Co., Ltd.
InventorLiliang Tian
Life of this patent
Estimating the term…
Abstract
The present disclosure discloses a crystal oscillator circuit on a PCB. The crystal oscillator circuit includes a crystal oscillator including an input end, an output end, a first grounding end and a second grounding end; a first capacitor with one end connected to the input end; and a second capacitor with one end connected to the output end, wherein the first grounding end is connected to a first grounding hole, the second grounding end is connected to a second grounding hole, the other end of the first capacitor is connected to a third grounding hole, the other end of the second capacitor is connected to a fourth grounding hole. The present disclosure further discloses the PCB and a server.
Claims16
A crystal oscillator circuit on a PCB, comprising:
- a crystal oscillator comprising an input end, an output end, a first grounding end and a second grounding end;
- a first capacitor with one end connected to the input end;
- and
- a second capacitor with one end connected to the output end,
- wherein the first grounding end is connected to a first grounding hole, the second grounding end is connected to a second grounding hole, the other end of the first capacitor is connected to a third grounding hole, and the other end of the second capacitor is connected to a fourth grounding hole;
- and
- the first grounding hole, the second grounding hole, the third grounding hole and the fourth grounding hole are independent of one another and are not in ground connection to a motherboard on a layer where the crystal oscillator circuit is located;
- the crystal oscillator circuit on the PCB further comprises:
- a first differential signal line connected to one end of the first capacitor;
- a second differential signal line connected to one end of the second capacitor;
- and a guard trace constructed to surround the crystal oscillator, the first capacitor, the second capacitor, the first differential signal line and the second differential signal line,
- wherein the guard trace is provided with a plurality of fifth grounding holes;
- wherein the guard trace comprises a first part, a second part and a third part, wherein the first part and the second part are located on two sides of the crystal oscillator,
- widths of the first part and widths of the second part are within a third preset interval range,
- the third part is located below the crystal oscillator,
- and a width of the third part is not less than the width of the first part or the width of the second part.
13 more elements
A PCB, comprising a crystal oscillator circuit, wherein the crystal oscillator circuit comprising:
- a crystal oscillator comprising an input end, an output end, a first grounding end and a second grounding end;
- a first capacitor with one end connected to the input end;
- and
- a second capacitor with one end connected to the output end,
- wherein the first grounding end is connected to a first grounding hole, the second grounding end is connected to a second grounding hole, the other end of the first capacitor is connected to a third grounding hole, and the other end of the second capacitor is connected to a fourth grounding hole;
- and
- the first grounding hole, the second grounding hole, the third grounding hole and the fourth grounding hole are independent of one another and are not in ground connection to a motherboard on a layer where the crystal oscillator circuit is located;
- the crystal oscillator circuit further comprises:
- a first differential signal line connected to one end of the first capacitor;
- a second differential signal line connected to one end of the second capacitor;
- and a guard trace constructed to surround the crystal oscillator, the first capacitor, the second capacitor, the first differential signal line and the second differential signal line,
- wherein the guard trace is provided with a plurality of fifth grounding holes;
- wherein the guard trace comprises a first part, a second part and a third part,
- wherein the first part and the second part are located on two sides of the crystal oscillator,
- widths of the first part and widths of the second part are within a third preset interval range,
- the third part is located below the crystal oscillator,
- and a width of the third part is not less than the width of the first part or the width of the second part.
14 more elements
A server, comprising a crystal oscillator circuit, wherein the crystal oscillator circuit comprising:
- a crystal oscillator comprising an input end, an output end, a first grounding end and a second grounding end;
- a first capacitor with one end connected to the input end;
- and
- a second capacitor with one end connected to the output end,
- wherein the first grounding end is connected to a first grounding hole, the second grounding end is connected to a second grounding hole,
- the other end of the first capacitor is connected to a third grounding hole,
- and the other end of the second capacitor is connected to a fourth grounding hole;
- and
- the first grounding hole, the second grounding hole, the third grounding hole and the fourth grounding hole are independent of one another and are not in ground connection to a motherboard on a layer where the crystal oscillator circuit is located;
- the crystal oscillator circuit further comprises:
- a first differential signal line connected to one end of the first capacitor;
- a second differential signal line connected to one end of the second capacitor;
- and a guard trace constructed to surround the crystal oscillator, the first capacitor, the second capacitor, the first differential signal line and the second differential signal line,
- wherein the guard trace is provided with a plurality of fifth grounding holes;
- wherein the guard trace comprises a first part, a second part and a third part,
- wherein the first part and the second part are located on two sides of the crystal oscillator,
- widths of the first part and widths of the second part are within a third preset interval range,
- the third part is located below the crystal oscillator,
- and a width of the third part is not less than the width of the first part or the width of the second part.
16 more elements
Dependencies are inferred from the claim text.