| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To assure stable operation by suppressing rough changes in amplitude of a clock signal by multiplex reflections. <P>SOLUTION: Multiplex reflection of the clock signal is suppressed by connecting a capacitor 27a having a capacitance value C which is almost two times the input capacitance C<SB>L</SB>of each latch circuit and satisfying the relation of the characteristic impedance (Z)=√(L/C), where the inductance of the length equal to half the line conductor is defined as L, between the intermediate part of the line conductor of the second transmission line 27 and the earth and between the intermediate part of the line conductor of a third transmission line 28 and the ground among a first to fourth transmission lines 26 to 29, forming a clock supplying circuit 25 for supplying clock signal to each latch circuit of a first and second shift circuits 11 and 12; and by also terminating, the fourth transmission line 29 with a resistance R equal to the characteristic impedance. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
