发明名称 |
Receiver circuit, particularly for mobile radio |
摘要 |
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.
|
申请公布号 |
US2003156052(A1) |
申请公布日期 |
2003.08.21 |
申请号 |
US20030384999 |
申请日期 |
2003.03.10 |
申请人 |
HAMMES MARKUS;HEINEN STEFAN;WAASEN STEFAN VAN;HANKE ANDRE;WAGNER ELMAR |
发明人 |
HAMMES MARKUS;HEINEN STEFAN;WAASEN STEFAN VAN;HANKE ANDRE;WAGNER ELMAR |
分类号 |
H04L27/38;H03D1/22;H04B1/26;(IPC1-7):H03M3/00 |
主分类号 |
H04L27/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|