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1.发明授权公开(公告)号：US07499689B2
公开(公告)日：2009-03-03
申请号：US11727217
申请日：2007-03-26
IPC分类号： H04B7/00
CPC分类号： H04B1/04 , H03C3/0925 , H03C3/0933 , H03D7/165 , H03D2200/0047 , H03J1/005 , H03L7/1976
摘要： In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
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2.发明授权公开(公告)号：US07205850B2
公开(公告)日：2007-04-17
申请号：US11181876
申请日：2005-07-15
IPC分类号： H03L7/18
CPC分类号： H04B1/04 , H03C3/0925 , H03C3/0933 , H03D7/165 , H03D2200/0047 , H03J1/005 , H03L7/1976
摘要： In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
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3.发明授权公开(公告)号：US07499688B2
公开(公告)日：2009-03-03
申请号：US11727216
申请日：2007-03-26
IPC分类号： H04B7/00
CPC分类号： H04B1/04 , H03C3/0925 , H03C3/0933 , H03D7/165 , H03D2200/0047 , H03J1/005 , H03L7/1976
摘要： In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
摘要翻译： 在使用偏移PLL结构并且包括产生中频信号的振荡电路和分频器电路的通信半导体集成电路器件中，振荡器电路包括振荡器，可编程分频器，其根据频率分频振荡信号 信息，检测可编程分频器的输出信号和参考信号之间的相位差的相位比较器，以及用于输出指示相位差并控制振荡器的振荡频率的信号的频率控制单元，其中分频 基于与使用频带和模式信息相关的频带信息以及频道信息生成整数部分I和分数部分F / G，并产生分频比信息，从而将其分配给可编程分频器。
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