发明名称 Circuit technique for improved current matching in charge pump PLLS
摘要 An apparatus comprising a pullup circuit, a pulldown circuit, and a control circuit. The pullup circuit may be configured to receive a first and second control signal. The pulldown circuit may be configured to receive a third and fourth control signal. The control circuit may be configured to generate the first, second, third and fourth control signals. The control circuit may comprise (i) a first and second control device coupled between the first and second control signals and a supply and (ii) a third and fourth control device coupled between the third and fourth control signals and the supply.
申请公布号 US6445211(B1) 申请公布日期 2002.09.03
申请号 US20000716526 申请日期 2000.11.20
申请人 CYPRESS SEMICONDUCTOR CORPORATION 发明人 SARIPELLA SATISH C.
分类号 H03L7/089;(IPC1-7):H03K19/017 主分类号 H03L7/089
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