发明名称 |
APPARATUS AND METHOD FOR IMPROVED CHOPPING MIXER |
摘要 |
An apparatus and method for an improved chopping mixer (100) having a bipolar mixer stage (140) for mixing signals (<i>Ip, In, LOp, LOn</i>) received thereby; an output chopping stage (160); and an AC coupling stage (150) for coupling the mixed signal to the output chopping stage. The signal prior to the chopping output stage is centered at the chopping clock frequency rather than DC. AC coupling allows removal of common mode signal in a desired frequency range. Also, the second order component present on each single ended output will also be DC blocked by the AC coupling capacitors, resulting in improved second order IP2 performance.
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申请公布号 |
WO0215385(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
WO2001EP08154 |
申请日期 |
2001.07.16 |
申请人 |
MOTOROLA INC;KHLAT, NADIM;LORENZO-LUACES, EDDIE;BASTANI, BABAK |
发明人 |
KHLAT, NADIM;LORENZO-LUACES, EDDIE;BASTANI, BABAK |
分类号 |
H03D7/14;H04B1/30;(IPC1-7):H03D7/14 |
主分类号 |
H03D7/14 |
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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