发明名称 |
Adjusting untrimmed VCO during operation of the oscillator |
摘要 |
A frequency oscillator tuning process at the manufacturing stage is replaced with an adjustment of a resonant circuit in the frequency oscillator during an operation of the oscillator. The adjustment utilizes a crystal oscillator, a frequency oscillator such as a voltage-controlled oscillator (VCO), and a trimmer in a phase-locked loop configuration to determine a correction voltage required for an untrimmed VCO to operate at a nominally specified frequency by adjusting an input tuning voltage for a resonant circuit.
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申请公布号 |
US2001035796(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20010887227 |
申请日期 |
2001.06.20 |
申请人 |
DENSO CORPORATION, JAPANESE CORPORATION |
发明人 |
ANDREWS JOSEPH |
分类号 |
H03B5/12;H03C1/36;H03L7/099;H03L7/18;(IPC1-7):H01S3/091 |
主分类号 |
H03B5/12 |
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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