Integrated logic circuit incorporating a module which...

Details Integrated logic circuit incorporating a module which... Integrated logic circuit incorporating a module which...

H - Electricity

03

K

328/127

H03K 19/00 (2006.01) H03K 17/16 (2006.01) H03K 19/003 (2006.01)

Patent

CA 1257342

-17- ABSTRACT OF THE DISCLOSURE INTEGRATED LOGIC CIRCUIT INCORPORATING A MODULE WHICH GENERATES A CONTROL SIGNAL THAT CANCELS SWITCHING NOISE A circuit having reduced susceptibility to noise includes a plurality of drivers coupled to a current bus; each driver receives a logic signal on a control terminal and operates to pass a large current when the logic signal is a one and pass a small current when the logic signal is a zero; the current bus has a parasitic inductance which generates a noise signal when the logic signals switch; noise on the current bus is parasitically coupled to the control terminal of each driver; and a plurality of noise reducing modules respectively couple to the control termi- nal of each driver and a common bus. Each module that receives a switching logic signal generates a control signal on the common bus that is similar in shape and opposite in polarity to the noise signal; and each module that does not receive a switching logic signal couples the control signal from the common bus to the control terminal to which it is connected.

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