| 摘要 |
PURPOSE:To realize economical constitution by providing integral capacitors at each stage as many as input signals and by providing time-division switched which connects selectively those capacitors synchronizing with selection of input signals. CONSTITUTION:Time-division switches Sin, SB1-SB5, and Sout with the (k)- number change-over contacts, and integral capacitors CBi are provided. Here, time- division switches Sin, SBi and Sout operate synchronously and when input line L1 is connected via time-division switch Sin, time-division switch SBi connects integral capacitor Cbij and time-division switch Sout connects output line L1'. In this state, switches S, Sia abd Sib are changed over and charge accumulated in switched capacitor CAi is transferred to integral capacitor Cbij. Consequently, the main part of the switched capacitor can be shared and time-division processing of several signals can also be performed, so that economical constitution can be realized. |
