| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a digital signal input device which achieves a stable operation of a CMOS LSI connected in a succeeding stage while stabilizing an operation. <P>SOLUTION: The digital signal input device is provided with an amplification unit which amplifies a signal inputted from an external unit, a waveform shaping unit which shapes a waveform of the signal amplified by the amplification unit, a capacitor which holds an offset voltage, and a control unit which controls charge and discharge of the capacitor and decides the offset voltage so as to keep the output of the waveform shaping unit at a high level state. <P>COPYRIGHT: (C)2011,JPO&INPIT |
