发明名称 |
RECEIVER CIRCUIT, ESPECIALLY FOR MOBILE RADIOTELEPHONY |
摘要 |
<p>In a receiver circuit for demodulating a high-frequency signal, a limiting amplifier stage with a downstream sigma-delta converter is connected in series with a mixer stage that transforms a high-frequency signal that is supplied at its input into an intermediate-frequency signal. The intermediate-frequency signal at the output of the limiting amplifier stage is value-discrete and time-continuous. The described receiver architecture has a high sensitivity, is substantially independent of production tolerances, and occupies a small area; therefore, it is particularly suitable for mobile radio applications.</p> |
申请公布号 |
EP1316144(B1) |
申请公布日期 |
2004.05.19 |
申请号 |
EP20010967070 |
申请日期 |
2001.09.06 |
申请人 |
INFINEON TECHNOLOGIES AG |
发明人 |
HAMMES, MARKUS;HEINEN, STEFAN;VAN WAASEN, STEFAN;HANKE, ANDRE;WAGNER, ELMAR |
分类号 |
H04L27/38;H03D1/22;H04B1/26;H04B17/40;(IPC1-7):H03D3/00 |
主分类号 |
H04L27/38 |
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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