发明名称 |
LNB FREQUENCY DOWN CONVERSION INTEGRATED CIRCUIT AND CHIP, LNB FREQUENCY DOWN CONVERSION CIRCUIT AND METHOD |
摘要 |
The present invention discloses a type of LNB frequency down conversion integrated circuit. The present invention frequency-down-converts the RF signal with the Quadrature local oscillation signal (LO) and Quadrature Mixer. Then the 90 degree phase-shifting of the quadrature intermediate frequency (IF) signal after mixed is done by the use of passive Polyphase filter. The present invention further discloses a LNB frequency down conversion chip, a LNB frequency down circuit adopting the LNB frequency down conversion chip circuit and a method of LBN frequency down. The invention ensures the elimination of the minor image signal and the realization of the minor image suppression function. |
申请公布号 |
US2013202071(A1) |
申请公布日期 |
2013.08.08 |
申请号 |
US201113809464 |
申请日期 |
2011.05.10 |
申请人 |
WEI SHUNRAN;YIN XUNSONG;RDA TECHNOLOGIES LIMITED |
发明人 |
WEI SHUNRAN;YIN XUNSONG |
分类号 |
H04L1/00 |
主分类号 |
H04L1/00 |
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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