发明名称 Multi-band transceiver for a wireless communication system
摘要 A local oscillation signal generator and a multi-band transceiver including the local oscillation signal generator are provided. The multi-band transceiver includes a fractional-N phased locked loop (PLL), a local oscillation signal generator, and a transmitter. The fractional-N PLL receives a reference signal and outputs an oscillation signal that is phase-locked to the reference signal. The local oscillation signal generator receives the oscillation signal and outputs a first divided signal that is obtained by dividing a frequency of the oscillation signal by a first value and a second divided signal that is obtained by dividing the frequency of the oscillation signal by a second value. The transmitter receives input signals and generates a transmitter signal using an equation <maths id="MATH-US-00001" num="1"> <MATH OVERFLOW="SCROLL"> <MROW> <MROW> <MSUB> <MI>f</MI> <MI>TX</MI> </MSUB> <MO>=</MO> <MROW> <MROW> <MO>(</MO> <MROW> <MFRAC> <MN>2</MN> <MROW> <MN>3</MN> <MO>⁢</MO> <MI>k</MI> </MROW> </MFRAC> <MO>-</MO> <MFRAC> <MN>1</MN> <MI>M</MI> </MFRAC> </MROW> <MO>)</MO> </MROW> <MO>⁢</MO> <MSUB> <MI>f</MI> <MI>VCO</MI> </MSUB> </MROW> </MROW> <MO>,</MO> </MROW> </MATH> </MATHS> based on the first divided signal and the second divided signal.
申请公布号 US2005085206(A1) 申请公布日期 2005.04.21
申请号 US20040967386 申请日期 2004.10.18
申请人 SAMSUNG ELECTRONICS CO., LTD. 发明人 LEE HAN-IL;HWANG IN-CHUL
分类号 H03L7/16;H03L7/197;H03L7/23;H04B1/40;(IPC1-7):H04B1/40;H04B1/06;H04B7/00;H04M1/00 主分类号 H03L7/16
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