公开(公告)号：US08891679B2

公开(公告)日：2014-11-18

申请号：US14146982

申请日：2014-01-03

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Giuseppe Li Puma ,  Stefan Van Waasen ,  Yanzhong Dai ,  Edwin Thaller

IPC: H04L27/04 ,  H04L27/36 ,  H03C1/52 ,  H04B1/04

CPC classification number: H04L27/361 ,  H04B1/0475 ,  H04B1/0483

Abstract: The disclosed polar modulation transmitter circuit is configured to generate an output signal having a transmission frequency that minimizes crosstalk effects between different transmission bands (e.g., Bluetooth, GSM, UMTS, etc.). In particular, a polar modulation transceiver circuit, having an amplitude modulated (AM) signal and a phase modulated (PM) signal, comprises a digitally controlled oscillator (DCO) configured to generate a DCO signal having a DCO frequency. The DCO signal is provided to one or more frequency dividers that are configured to selectively divide the DCO signal to generate various lower frequency signals, used to select a sampling rate for a DAC operating on the AM signal and an RF carrier signal frequency, which result in an output signal having a frequency that does not interfere with other RF systems on the same IC (e.g., that falls outside of the downlink frequency of other RF systems). Other systems and methods are also disclosed.

公开(公告)号：US20140119476A1

公开(公告)日：2014-05-01

申请号：US14146982

申请日：2014-01-03

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Giuseppe Li Puma ,  Stefan Van Waasen ,  Yanzhong Dai ,  Edwin Thaller

IPC: H04L27/36

CPC classification number: H04L27/361 ,  H04B1/0475 ,  H04B1/0483

Abstract: The disclosed polar modulation transmitter circuit is configured to generate an output signal having a transmission frequency that minimizes crosstalk effects between different transmission bands (e.g., Bluetooth, GSM, UMTS, etc.). In particular, a polar modulation transceiver circuit, having an amplitude modulated (AM) signal and a phase modulated (PM) signal, comprises a digitally controlled oscillator (DCO) configured to generate a DCO signal having a DCO frequency. The DCO signal is provided to one or more frequency dividers that are configured to selectively divide the DCO signal to generate various lower frequency signals, used to select a sampling rate for a DAC operating on the AM signal and an RF carrier signal frequency, which result in an output signal having a frequency that does not interfere with other RF systems on the same IC (e.g., that falls outside of the downlink frequency of other RF systems). Other systems and methods are also disclosed.

Abstract translation: 所公开的极性调制发射机电路被配置为产生具有最小化不同传输频带（例如，蓝牙，GSM，UMTS等）之间的串扰效应的传输频率的输出信号。 特别地，具有幅度调制（AM）信号和相位调制（PM）信号的极性调制收发器电路包括被配置为产生具有DCO频率的DCO信号的数字控制振荡器（DCO）。 DCO信号被提供给一个或多个分频器，其被配置为选择性地划分DCO信号以产生各种较低频率信号，用于选择在AM信号上操作的DAC的采样率和RF载波信号频率，其结果 在具有不干扰同一IC上的其它RF系统的频率的输出信号（例如，其落在其他RF系统的下行链路频率之外）。 还公开了其它系统和方法。