发明名称 |
Kvartsostsillaator vöimenduse automaatse reguleerimisega ja kiibil toimuvahäälestamisega |
摘要 |
A highly stable single chip crystal controlled oscillator with automatic gain control. An amplitude detector monitors the output of a crystal controlled oscillator amplifier and produces a feedback signal proportional to the output signal of the amplifier to ensure oscillation is induced at startup and that the amplitude of oscillation is limited to a preselected value during operation to conserve power consumption by the amplifier. The capacitor tank circuit connected to the input of the amplifier includes a voltage variable capacitor the voltage across which is initially established at manufacture to tune the oscillation frequency to a preselected value. The voltage across the voltage variable capacitor is also adjusted to compensate for temperature variations in the circuit. |
申请公布号 |
EE200000188(A) |
申请公布日期 |
2001.04.16 |
申请号 |
EE20000000188 |
申请日期 |
1998.10.06 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
KARL HAAKAN TORBJOERN GAERDENFORS;ERIK BENGTSSON;HAAKAN ENSTROEM |
分类号 |
H03B5/32;H03B5/04;H03B5/36;H03L1/02;H03L5/00;(IPC1-7):H03B5/36 |
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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