Communication semiconductor integrated circuit device and wireless communication system
    1.
    发明申请
    Communication semiconductor integrated circuit device and wireless communication system 失效
    通信半导体集成电路器件和无线通信系统

    公开(公告)号:US20050116781A1

    公开(公告)日:2005-06-02

    申请号:US10994280

    申请日:2004-11-23

    摘要: A communication semiconductor integrated circuit device includes an RFVCO and a TXVCO and is formed over one semiconductor substrate, and has a first operation mode (idle mode) which does not perform transmission and reception, a second operation mode (warmup mode) which performs a preparation prior to the start of transmission or reception, and a third operation mode (transmission or reception mode) which performs transmission or reception. In the first operation mode, two oscillators are deactivated, and the operation of selecting a frequency band to be used in at least the TXVCO which generates a transmit signal, is performed in the second operation mode. In the communication semiconductor integrated circuit device, a high frequency signal generator which generates a signal having a desired frequency with an oscillation signal outputted from a crystal oscillator as a reference signal, a reception system circuit (RXC) including a frequency converter, and a transmission system circuit (TXC) including the TXVCO which generates the transmit signal, are respectively formed in different semiconductor regions isolated by insulators.

    摘要翻译: 通信半导体集成电路器件包括RFVCO和TXVCO,并且形成在一个半导体衬底上,并且具有不执行发送和接收的第一操作模式(空闲模式),执行准备的第二操作模式(预热模式) 在发送或接收开始之前,以及执行发送或接收的第三操作模式(发送或接收模式)。 在第一操作模式中,两个振荡器被去激活,并且在第二操作模式中执行选择在至少产生发送信号的TXVCO中使用的频带的操作。 在通信半导体集成电路装置中,生成具有从晶体振荡器输出的振荡信号作为参考信号的期望频率的信号的高频信号发生器,包括变频器的接收系统电路(RXC)和发送 包括产生发送信号的TXVCO的系统电路(TXC)分别形成在由绝缘体隔离的不同的半导体区域中。

    Communication semiconductor integrated circuit device and wireless communication system
    2.
    发明授权
    Communication semiconductor integrated circuit device and wireless communication system 失效
    通信半导体集成电路器件和无线通信系统

    公开(公告)号:US07154341B2

    公开(公告)日:2006-12-26

    申请号:US10994280

    申请日:2004-11-23

    IPC分类号: H03L7/00

    摘要: A communication semiconductor integrated circuit device includes an RFVCO and a TXVCO and is formed over one semiconductor substrate, and has a first operation mode (idle mode) which does not perform transmission and reception, a second operation mode (warmup mode) which performs a preparation prior to the start of transmission or reception, and a third operation mode (transmission or reception mode) which performs transmission or reception. In the first operation mode, two oscillators are deactivated, and the operation of selecting a frequency band to be used in at least the TXVCO which generates a transmit signal, is performed in the second operation mode. In the communication semiconductor integrated circuit device, a high frequency signal generator which generates a signal having a desired frequency with an oscillation signal outputted from a crystal oscillator as a reference signal, a reception system circuit (RXC) including a frequency converter, and a transmission system circuit (TXC) including the TXVCO which generates the transmit signal, are respectively formed in different semiconductor regions isolated by insulators.

    摘要翻译: 通信半导体集成电路器件包括RFVCO和TXVCO,并且形成在一个半导体衬底上,并且具有不执行发送和接收的第一操作模式(空闲模式),执行准备的第二操作模式(预热模式) 在发送或接收开始之前,以及执行发送或接收的第三操作模式(发送或接收模式)。 在第一操作模式中,两个振荡器被去激活,并且在第二操作模式中执行选择在至少产生发送信号的TXVCO中使用的频带的操作。 在通信半导体集成电路装置中,生成具有从晶体振荡器输出的振荡信号作为参考信号的期望频率的信号的高频信号发生器,包括变频器的接收系统电路(RXC)和发送 包括产生发送信号的TXVCO的系统电路(TXC)分别形成在由绝缘体隔离的不同的半导体区域中。

    Communication semiconductor integrated circuit and radio communication system
    3.
    发明授权
    Communication semiconductor integrated circuit and radio communication system 有权
    通信半导体集成电路和无线电通信系统

    公开(公告)号:US07313369B2

    公开(公告)日:2007-12-25

    申请号:US11122062

    申请日:2005-05-05

    IPC分类号: H04B1/40

    摘要: A communication semiconductor integrated circuit has an oscillator circuit forming part of a transmission PLL circuit fabricated on a single semiconductor chip together with an oscillator circuit forming part of a reception PLL circuit and an oscillator circuit for an intermediate frequency. The oscillator circuit forming part of the transmission PLL circuit is configured to be operable in a plurality of bands. A circuit for measuring the oscillating frequency of the oscillator circuit forming part of the transmission PLL circuit is also used for measuring the oscillating frequency of the oscillator circuit forming part of the reception PLL circuit or for measuring the oscillating frequency of the oscillator circuit for the intermediate frequency.

    摘要翻译: 通信半导体集成电路具有形成在单个半导体芯片上的传输PLL电路的一部分的振荡器电路以及形成接收PLL电路的一部分的振荡器电路和用于中频的振荡器电路。 形成传输PLL电路的一部分的振荡器电路被配置为可在多个频带中操作。 用于测量形成传输PLL电路的一部分的振荡电路的振荡频率的电路也用于测量形成接收PLL电路的一部分的振荡器电路的振荡频率或用于测量中间件的振荡器电路的振荡频率 频率。

    High frequency semiconductor integrated circuit and radio communication system
    4.
    发明授权
    High frequency semiconductor integrated circuit and radio communication system 失效
    高频半导体集成电路和无线电通信系统

    公开(公告)号:US07020444B2

    公开(公告)日:2006-03-28

    申请号:US10372922

    申请日:2003-02-26

    IPC分类号: H04B1/40

    摘要: A communication semiconductor integrated circuit has an oscillator circuit forming part of a transmission PLL circuit fabricated on a single semiconductor chip together with an oscillator circuit forming part of a reception PLL circuit and an oscillator circuit for an intermediate frequency. The oscillator circuit for the transmission PLL circuit is configured to be operable in a plurality of bands. The communication semiconductor integrated circuit also comprises a circuit for measuring the oscillating frequency of the oscillator circuit for the transmission PLL circuit, and a storage circuit for storing the result of measurement made by the measuring circuit. A band to be used by the oscillator circuit for the transmission PLL circuit is determined based on values for setting the oscillating frequencies of the oscillator circuit forming part of the reception PLL circuit and the intermediate frequency oscillator circuit, and the result of measurement stored in the storage circuit.

    摘要翻译: 通信半导体集成电路具有形成在单个半导体芯片上的传输PLL电路的一部分的振荡器电路以及形成接收PLL电路的一部分的振荡器电路和用于中频的振荡器电路。 用于传输PLL电路的振荡器电路被配置为可在多个频带中操作。 通信半导体集成电路还包括用于测量用于传输PLL电路的振荡器电路的振荡频率的电路和用于存储由测量电路进行的测量结果的存储电路。 用于传输PLL电路的振荡电路使用的频带基于用于设置构成接收PLL电路和中频振荡器电路的一部分的振荡电路的振荡频率的值和存储在传输PLL电路中的测量结果的值来确定 存储电路。

    Communication semiconductor integrated circuit device and wireless communication system

    公开(公告)号:US20070010225A1

    公开(公告)日:2007-01-11

    申请号:US11519061

    申请日:2006-09-12

    IPC分类号: H04B1/40 H04B1/06

    CPC分类号: H03L7/10 H03L7/0891 H03L7/193

    摘要: The invention provides a communication semiconductor integrated circuit device (RF IC) capable of pulling in the frequency of a PLL circuit to a desired set frequency at high speed even in the case where a frequency settable range of the PLL circuit is wide without providing a current source other than a current source for charging and discharging in an normal operation. An oscillator as a component of a PLL circuit is constructed so as to be operative in a plurality of bands. In a state where a control voltage of the oscillator is fixed to a predetermined value, an oscillation frequency of the oscillator is measured in each of bands and stored in a storing circuit. A set value for designating a band supplied at the time of PLL operation is compared with the stored measured frequency value. From a result of comparison, a band to be actually used in the oscillator is determined, and a frequency difference between the maximum frequency of the selected band and the set frequency is obtained. Further, a control voltage closest to the set frequency is determined on the basis of the frequency difference and the frequency variable range of the selected band and the control voltage is applied to the oscillator to start oscillating operation. After that, a PLL loop is closed and locked.