发明名称 |
FUNCTION GENERATOR, CRYSTAL OSCILLATOR AND ITS TUNING PROCESS |
摘要 |
electronic engineering. SUBSTANCE: control signal is generated to compensate for temperature dependence of crystal oscillator output oscillations. Temperature-compensated crystal oscillator unit has voltage source whose voltage is independent of ambient temperature, temperature sensor circuit generating voltage proportional to ambient temperature, control circuit generating control voltage used to compensate for temperature characteristic of crystal oscillator throughout entire ambient temperature range by means of piecewise-linear approximation of cubic characteristic with continuous lines. EFFECT: eliminated control-voltage frequency jump, facilitated adjustment for temperature compensation. 28 cl, 28 dwg
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申请公布号 |
RU2189106(C2) |
申请公布日期 |
2002.09.10 |
申请号 |
RU20000100815 |
申请日期 |
1998.07.08 |
申请人 |
MATSUSHITA EHLEKTRIK INDASTRIAL KO., LTD. |
发明人 |
SHIBUJA SHUDZHI;TAKEUCHI KHISATO;MATSUURA DZHUNICHI;TATEJAMA JUICHI;SAEHKI TAKAKHARU |
分类号 |
H03B5/32;G06G7/12;G06G7/26;H03B1/00;H03B5/04;H03B5/36;H03L1/02;(IPC1-7):H03B5/32 |
主分类号 |
H03B5/32 |
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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