发明名称 |
Frequency synthesisers. |
摘要 |
<p>An electronic circuit device, for facilitating channellising in a phase-locked loop frequency synthesiser, consists of a plurality of capacitors (7) which may be individually coupled in through appropriate electronic switches (8), at the input of a quartz oscillator (1), according to a suitable logic controlled by a microprocessor drived decoder (9) in order to determine an exact shift of the system reference frequency.</p> |
申请公布号 |
EP0203756(A2) |
申请公布日期 |
1986.12.03 |
申请号 |
EP19860303653 |
申请日期 |
1986.05.14 |
申请人 |
INTERNATIONAL STANDARD ELECTRIC CORPORATION |
发明人 |
CLEMENTI, ARMANDO;NORBIATO, RENATO;SPERDUTI, EMILIO |
分类号 |
H03L7/18;H03L7/183;(IPC1-7):H03L7/18 |
主分类号 |
H03L7/18 |
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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