发明名称 |
Integrated circuit with two phase-locked loops and circuit for preventing locking owing to injection |
摘要 |
An integrated circuit including two phase-locked loops each with its own oscillator. To prevent locking owing to injection between the two oscillators due to stray currents in the integrated circuit, a noise generator is coupled to the oscillator of one of the loops and a timer is provided for activating the noise generator in a manner such that the noise generated changes the frequency of the oscillator randomly when the other loop is in operation.
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申请公布号 |
US6141313(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19980113576 |
申请日期 |
1998.07.10 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
CELANT, LUCA;DE MICHELI, MARCO;BRUCCOLERI, MELCHIORRE;RIGAZIO, LUCA |
分类号 |
G11B20/14;H03B29/00;H03L7/07;H03L7/22;(IPC1-7):G11B7/00 |
主分类号 |
G11B20/14 |
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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