CN201490982U - Chip for SMD5032-12MHz crystal resonator - Google Patents
Chip for SMD5032-12MHz crystal resonator Download PDFInfo
- Publication number
- CN201490982U CN201490982U CN 200920187449 CN200920187449U CN201490982U CN 201490982 U CN201490982 U CN 201490982U CN 200920187449 CN200920187449 CN 200920187449 CN 200920187449 U CN200920187449 U CN 200920187449U CN 201490982 U CN201490982 U CN 201490982U
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- crystal resonator
- chip
- smd5032
- wafer
- 12mhz
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- Expired - Fee Related
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Abstract
The utility model relates to a chip for a SMD5032-12MHz crystal resonator. A film-coated electrode with the length of 2.35-2.45 mm and the width of 1.45-1.55 mm is arranged on the chip. The chip has the advantages of low resistance and low power consumption; and he frequency temperature characteristics of the crystal resonator are more centralized compared with the frequency temperature characteristics of the prior crystal resonator.
Description
Technical field
The utility model relates to a kind of SMD5032-12MHz type crystal resonator wafer.
Background technology
The main body of SMD crystal resonator is a quartz wafer wherein, in order to increase vibration resistance and anti-oxidation, wafer is placed in the pedestal seal.Therefore, the main unit for electrical property parameters of crystal oscillator, for example frequency, resistance, temperature characterisitic etc. all are the performance decisions by wafer.Raw wafer is because its poor electric conductivity all will plate one deck silver at the wafer part surface in the crystal resonator manufacturing, and the electrode (area of this electrode is long-pending less than wafer surface) as wafer makes crystal form inverse piezoelectric effect under effect of electric field.
In general, complete machine producer requires crystal resonator resistance the smaller the better for requiring low-power consumption, on the one hand, when crystal resonator resistance is excessive, causes not the phenomenon of " starting of oscillation " or job insecurity easily in addition.At present, SMD5032-12MHz type low frequency crystal resonator used crystal chip generally use length * wide=2.2mm * 1.2mm (error is at ± 0.05mm) electrode, but resistance mean value is bigger than normal, about 22.71 Ω, power consumption is relatively large.
Summary of the invention
The purpose of this utility model provides a kind of SMD5032-12MHz type crystal resonator wafer, has resistance advantage little, low in energy consumption.
The utility model is achieved in that wafer is provided with coated electrode, and the length of described coated electrode is 2.35～2.45mm, and width is 1.45～1.55mm.
The crystal current performance depends mainly on two aspects of size of wafer itself and coated electrode, though increase the coated electrode size, can reduce the resistance of wafer, (temperature characterisitic is meant the changing value along with the variations in temperature frequency but the change of coated electrode length and width size can bring the change of temperature characterisitic, generally require the smaller the betterly, when making curve chart, curve is concentrated more good more), arbitrarily increased in size may cause temperature characterisitic seriously bad.The inventor found through experiments, electrode is when above-mentioned size, SMD5032-12MHz type crystal resonator resistance level obviously descends, and through about 18.25 Ω of the resistance mean value of randomly drawing 20 measurements, the average resistance of the utility model crystal resonator has obvious decline.And temperature characterisitic also can meet the demands.
Temperature Tequ line as shown in Figure 2, the crystal resonator frequency temperature Tequ line of the utility model wafer is used in the block curve representative among the figure, the crystal resonator frequency temperature Tequ line of existing wafer is used in the dashed curve representative, both as seen, the frequency temperature Tequ line of the crystal resonator of the utility model wafer is more concentrated, and frequency is subjected to influence of temperature change little.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model crystal resonator temperature Tequ line chart.
Embodiment
The utility model SMD5032-12MHz type crystal resonator used crystal chip 1 is provided with coated electrode 2, and the length L of coated electrode 2 is 2.35～2.45mm, and width W is 1.45～1.55mm.
Claims (1)
1.SMD5032-12MHz type crystal resonator wafer, wafer is provided with coated electrode, it is characterized in that: the length of described coated electrode is 2.35～2.45mm, and width is 1.45～1.55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920187449 CN201490982U (en) | 2009-09-09 | 2009-09-09 | Chip for SMD5032-12MHz crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920187449 CN201490982U (en) | 2009-09-09 | 2009-09-09 | Chip for SMD5032-12MHz crystal resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490982U true CN201490982U (en) | 2010-05-26 |
Family
ID=42429848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920187449 Expired - Fee Related CN201490982U (en) | 2009-09-09 | 2009-09-09 | Chip for SMD5032-12MHz crystal resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832902A (en) * | 2012-09-21 | 2012-12-19 | 成都晶宝时频技术股份有限公司 | Quartz crystal resonator and processing method thereof |
| CN102868382A (en) * | 2012-09-21 | 2013-01-09 | 成都晶宝时频技术股份有限公司 | Coating electrode of SMD (surface mounted device) quartz-crystal resonator |
| CN104113302A (en) * | 2014-07-17 | 2014-10-22 | 深圳市福浪电子有限公司 | Vehicle-mounted crystal oscillator |
-
2009
- 2009-09-09 CN CN 200920187449 patent/CN201490982U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832902A (en) * | 2012-09-21 | 2012-12-19 | 成都晶宝时频技术股份有限公司 | Quartz crystal resonator and processing method thereof |
| CN102868382A (en) * | 2012-09-21 | 2013-01-09 | 成都晶宝时频技术股份有限公司 | Coating electrode of SMD (surface mounted device) quartz-crystal resonator |
| CN102868382B (en) * | 2012-09-21 | 2015-05-27 | 成都晶宝时频技术股份有限公司 | Coating electrode of SMD (surface mounted device) quartz-crystal resonator |
| CN102832902B (en) * | 2012-09-21 | 2016-04-06 | 成都晶宝时频技术股份有限公司 | A kind of quartz-crystal resonator and processing method thereof |
| CN104113302A (en) * | 2014-07-17 | 2014-10-22 | 深圳市福浪电子有限公司 | Vehicle-mounted crystal oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120909 |