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1. 发明申请

WO1995034954A1 SIGNAL RECEIVING CIRCUIT AND DIGITAL SIGNAL PROCESSING SYSTEM 审中-公开
标题翻译：信号接收电路和数字信号处理系统
公开(公告)号：WO1995034954A1
公开(公告)日：1995-12-21
申请号：PCT/JP1995001001
申请日：1995-05-25
申请人： HITACHI, LTD. , HITACHI COMMUNICATION SYSTEMS, INC. , KANAZAWA, Nobuaki , MIZUKAMI, Masao , ITO, Kunihiro
发明人： HITACHI, LTD. , HITACHI COMMUNICATION SYSTEMS, INC.
IPC分类号： H03K19/0185
CPC分类号： H04L25/0292 , H03K19/018521 , H03K19/018528
摘要： A signal receiving circuit comprising a first P-channel amplifiying MOSFET and a first N-channel amplifying MOSFET to the gates of which positive-phase signals inputted through a pair of signal transmission lines are fed and a second P-channel amplifying MOSFET and second N-channel amplifying MOSFET to the gates of which negative-phase signals inputted through the transmission lines are fed. A first output signal is generated adjusting the gains of the first P-channel MOSFET and second N-channel MOSFET, and the amplitude of the signal lies in nearly the middle part of the operating voltage. A second output signal is generated adjusting the gains of the second P-channel MOSFET and first N-channel MOSFET, and the amplitude of the signal lies in nearly the middle part of the operating voltage. Therefore, various kinds of small-amplitude signals can be received using a sense amplifier having only a fixed operating range in a signal receiving circuit constituted in the above-mentioned way and a novel optimum system can be constructed by combining semiconductor integrated circuit devices having different small-amplitude interfaces.
摘要翻译：一种信号接收电路，包括第一P沟道放大MOSFET和第一N沟道放大MOSFET，以通过一对信号传输线输入正相信号的栅极和第二P沟道放大MOSFET和第二N沟道放大MOSFET 通道放大MOSFET到通过传输线输入的负相位信号的栅极。产生第一输出信号，调节第一P沟道MOSFET和第二N沟道MOSFET的增益，信号幅度几乎位于工作电压的中间部分。产生调节第二P沟道MOSFET和第一N沟道MOSFET的增益的第二输出信号，并且信号的幅度几乎位于工作电压的中间部分。因此，可以使用在上述方式构成的信号接收电路中仅具有固定工作范围的读出放大器来接收各种小振幅信号，并且可以通过组合具有不同的半导体集成电路器件来构建新的最佳系统小振幅接口。

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