公开(公告)号：US20100120375A1

公开(公告)日：2010-05-13

申请号：US12692325

申请日：2010-01-22

申请人： Masaru SAWADA ,  Hideaki KONDO ,  Norio MURAKAMI

发明人： Masaru SAWADA ,  Hideaki KONDO ,  Norio MURAKAMI

IPC分类号： H04B1/40

CPC分类号： H04B1/48 ,  H04B1/0458

摘要： A transmitting and receiving circuit includes a transmitting side amplifier circuit amplifying a transmission signal transmitted from an antenna, a receiving side amplifier circuit amplifying a reception signal received by the antenna and being electrically connected to the a transmitting side amplifier circuit, a first matching circuit matching the antenna and the transmitting side amplifier circuit, a second matching circuit matching the antenna and the receiving side amplifier circuit, a first current source circuit capable of controlling an operating state and setting a first connection point between the first matching circuit and an output terminal of the transmitting side amplifier circuit to a given voltage, and a second current source circuit capable of controlling an operating state and setting a second connection point between the second matching circuit and an input terminal of the receiving side amplifier circuit to a given voltage.

摘要翻译： 发送和接收电路包括放大从天线发送的发送信号的发送侧放大器电路，放大由天线接收的并与发送侧放大器电路电连接的接收信号的接收侧放大器电路，第一匹配电路匹配 天线和发送侧放大器电路，匹配天线和接收侧放大器电路的第二匹配电路，能够控制操作状态并将第一匹配电路和输出端之间的第一连接点设置为第一电流源电路的第一电流源电路 所述发送侧放大器电路为给定电压;以及第二电流源电路，其能够控制操作状态，并将所述第二匹配电路和所述接收侧放大器电路的输入端之间的第二连接点设定为给定电压。

公开(公告)号：US20120218049A1

公开(公告)日：2012-08-30

申请号：US13310069

申请日：2011-12-02

申请人： Masaru SAWADA

发明人： Masaru SAWADA

IPC分类号： H03L7/097

CPC分类号： H03L7/07 ,  H03L7/0805 ,  H03L7/0812

摘要： A PLL includes: a charge-pump equalizer which has a plurality of charge pumps generating charge currents according to phase-difference signals, each being generated by delaying the phase-difference signal by different times, adds and outputs the charge currents generated by the charge pumps; a replica circuit, having ideal characteristics of a loop filter and a voltage controlled oscillator, which input a digital value having phase difference of the phase-difference signals, and generates a replica output according to the ideal characteristics; and a coefficient generating circuit which smoothes correlation values of the difference signals and the phase-difference signals to generate charge pump coefficients, and negatively feeds back the same to the plurality of charge pumps. The charge pumps generate the charge currents each having current values corresponding to the charge pump coefficients.

摘要翻译： PLL包括：电荷泵均衡器，其具有多个电荷泵，根据相差信号产生充电电流，每个相位差信号通过将相位差信号延迟不同时间而产生，并将由该电荷产生的充电电流相加并输出 泵; 具有环路滤波器和压控振荡器的理想特性的复制电路，其输入具有相差信号的相位差的数字值，并根据理想特性生成复制输出; 以及系数发生电路，对所述差分信号和所述相位差信号的相关值进行平滑，以产生电荷泵系数，并将其反馈到所述多个电荷泵。 电荷泵产生各自具有对应于电荷泵系数的电流值的充电电流。