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    Transmitter and semiconductor integrated circuit for communication
    1.
    发明授权
    Transmitter and semiconductor integrated circuit for communication 有权
    发射机和半导体集成电路进行通讯

    公开(公告)号：US07433653B2

    公开(公告)日：2008-10-07

    申请号：US11812276

    申请日：2007-06-18

    申请人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Astle Henshaw ,  David Freeborough

    发明人： Ryoichi Takano ,  Kazuhiko Hikasa ,  Yasuyuki Kimura ,  Hiroshi Hagisawa ,  Patrick Wurm ,  Robert Astle Henshaw ,  David Freeborough

    IPC分类号： H04B1/40

    CPC分类号： H03C5/00 ,  H03F1/34 ,  H03F3/24 ,  H04B1/0475 ,  H04B2001/0433 ,  H04L27/0008 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/361

    摘要： A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.

    摘要翻译： 一种采用极性环路系统的发射机，包括用于控制从发射振荡器输出的载波信号的相位的相位控制环路和用于控制从功率放大电路输出的发射输出信号的振幅的幅度控制环路，并被设计为 能够使用GMSK调制模式进行发送，并且使用8-PSK调制模式进行发送。 在发射机中，相位控制环路作为用于GMSK调制模式的相位控制环路和用于8-PSK调制模式的相位控制环路共享。 与构成环路滤波器的组件中的任何一个相似的部件与其并联地设置，使得可以根据调制模式例如通过使用开关元件来连接或断开部件。

    PLL circuit having a multi-band oscillator and compensating oscillation frequency
    9.
    发明授权
    PLL circuit having a multi-band oscillator and compensating oscillation frequency 有权
    PLL电路具有多频带振荡器和补偿振荡频率

    公开(公告)号：US07263340B2

    公开(公告)日：2007-08-28

    申请号：US11491978

    申请日：2006-07-25

    申请人： Toshiya Uozumi ,  Satoshi Tanaka ,  Masumi Kasahara ,  Hirotaka Oosawa ,  Yasuyuki Kimura ,  Robert Astle Henshaw

    发明人： Toshiya Uozumi ,  Satoshi Tanaka ,  Masumi Kasahara ,  Hirotaka Oosawa ,  Yasuyuki Kimura ,  Robert Astle Henshaw

    IPC分类号： H04B1/06

    CPC分类号： H03L1/02 ,  H03L7/087 ,  H03L7/099 ,  H03L7/183 ,  H03L7/187

    摘要： A semiconductor integrated circuit device for communication is provided with a PLL circuit or the like formed therein, the PLL circuit which is capable of realizing the compensation of fluctuation due to temperature change, the inhibition of increase in the chip area and the ensurement of the performance margin, and which controls a VCO having multiple oscillation frequency bands. In the case where automatic calibration is performed by switching a switch to a side of a DC voltage source in the PLL circuit using a VCO having multiple oscillation bands, a tuning voltage (Vtune) of an RFVCO is fixed to a voltage value of a DC voltage source. However, since a temperature characteristic of canceling a VCO oscillation frequency is given to the DC voltage source, it is possible to minimize the influence on the band selection when a calibration table comes to no optimum one.

    摘要翻译： 用于通信的半导体集成电路器件设置有形成在其中的PLL电路等，PLL电路能够实现由于温度变化引起的波动的补偿，芯片面积的增加的抑制以及性能的确定 边缘，并且其控制具有多个振荡频带的VCO。 在通过使用具有多个振荡频带的VCO将开关切换到PLL电路中的直流电压源的一侧进行自动校准的情况下，将RFVCO的调谐电压（Vtune）固定为DC的电压值 电压源。 然而，由于将VCO振荡频率的温度特性赋予DC电压源，所以当校准表达到最佳时，可以最小化对频带选择的影响。