发明名称 |
COMMON-GATE COMMON-SOURCE TRANSCONDUCTANCE STAGE FOR RF DOWNCONVERSION MIXER |
摘要 |
<p>In an embodiment, a wireless device receiver chain includes a mixer with a common-gate common-source (CGCS) input stage. Differential signals from an off-chip matching network may be input to the CGCS input stage of the mixer, which downconverts the signals to baseband or some intermediate frequency. The input stage includes a pair of NMOS transistors in a common-gate configuration and a pair of PMOS transistors in a common-source configuration. A potential advantage of the CGCS input stage over the existing CGO transconductance stage configuration is that by adding a common-source stage through the PMOS differential-pair, the transconductance gain is decoupled from the high Q matching network.</p> |
申请公布号 |
WO2007117322(A3) |
申请公布日期 |
2008.06.19 |
申请号 |
WO2006US61819 |
申请日期 |
2006.12.08 |
申请人 |
QUALCOMM INCORPORATED;WU, YUE |
发明人 |
WU, YUE |
分类号 |
H03D7/14;H03F3/193;H03F3/45 |
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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