发明名称 |
Compensating method for a PLL circuit that functions according to the two-point principle, and PLL circuit provided with a compensating device |
摘要 |
A PLL circuit is tuned to a first frequency by using a first digital modulation signal and subsequently tuned to a second frequency by using a second digital modulation signal. A differential signal, that is a function of the change in voltage of a VCO control signal generated by the modulation signals, is compared with a comparison signal, that is characteristic of the analog modulation amplitude. Based on the comparison the analog modulation amplitude is changed to minimize or substantially eliminate a deviation between the signals.
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申请公布号 |
US7154347(B2) |
申请公布日期 |
2006.12.26 |
申请号 |
US20040490604 |
申请日期 |
2004.10.18 |
申请人 |
INFINEON TECHNOLOGIES AG |
发明人 |
GREWING CHRISTIAN;HAMMES MARKUS;HANKE ANDRE;LI PUMA GIUSEPPE |
分类号 |
H03L7/00;H03C3/09;H03L7/089;H03L7/197 |
主分类号 |
H03L7/00 |
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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