发明名称 |
SELF-CALIBRATING TEMPERATURE-COMPENSATED OSCILLATOR |
摘要 |
A self-calibrating temperature compensated oscillator includes a monolithic structure having a first resonator, a second resonator, and a heating element to heat the first and second resonators. The temperature coefficient of the second resonator is substantially greater than the temperature coefficient of the first resonator. A first oscillator circuit operates with the first resonator and outputs a first oscillator output signal having a first oscillating frequency. A second oscillator circuit operates with the second resonator and outputs a second oscillator output signal having a second oscillating frequency. A temperature determining circuit determines the temperature of the first resonator using the second oscillating frequency. A temperature compensator provides a control signal to the first oscillator in response to the determined temperature to adjust the first oscillating frequency and maintain it at a desired operating frequency.
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申请公布号 |
US2009146746(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20070950644 |
申请日期 |
2007.12.05 |
申请人 |
AVAGO TECHNOLOGIES WIRELESS IP (SINGAPORE) PTE. LT |
发明人 |
UNKRICH MARK A.;RUBY RICHARD C.;PANG WEI |
分类号 |
H03L1/04 |
主分类号 |
H03L1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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