| 摘要 |
PURPOSE:To attain excellent channel switching with simple constitution by employing digital processing so as to apply channel switching. CONSTITUTION:A channel discrimination signal LRC with respect to a data from a pre-stage and a control signal WEN used to write the data from the pre-stage into registers 11a-11p are gated, the gating condition is selected by a switch 5, and the signal obtained in response to the selection is used as the control signal to write the data into the registers 11a-11p. Since the channel switching is applied by digital processing, the performance of digital circuit is not lost. Thus, excellent channel switching is applied by only adding a simple gate circuit or the like. |
