| 摘要 |
PURPOSE:To reduce the cost by selecting a connection mode between internal function circuits according to a control voltage applied to a mode select terminal and setting an input-output transfer coefficient corresponding to the connection mode. CONSTITUTION:A voltage of e.g. 5V is applied to a mode select terminal T1 and mode changeover switch sections SW1, SW2 are all thrown to upper contact positions. Then signals of each of input channels A, B... O, P are multiplied in a predetermined way by a digital attenuator 10 and the product is outputted to an output terminal. The outputs from the attenuators 10 are mixed at a predetermined ratio by a resistor mixer circuit 13 and provided as an output via the switch section SW2 and an output amplifier group 14. Through the changeover, outputs from output terminals Tout1-Tout10 of a multi-channel signal processing circuit 1 have a proper signal waveform as a control signal used to correct a deflection system and the result of arithmetic operation is outputted from an output terminal as a deflection system correction control signal. |
