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5150ed 17th August 2006 01:46 PM

Radio problem on noninverted GC???
Can anyone suggest how to get rid of the Radio signal in inverted GC?

jackinnj 17th August 2006 02:15 PM

usually reading the product documentation will help -- and Natinal Semi addressed this specific issue for all the Overture series chips -- a 200pF capacitor between the inverting and non-inverting inputs will do most of the job, but make sure to bypass the Vcc and Vee pins as indicated.

edjosh23 17th August 2006 02:25 PM

I had this with my first GC. Trim every wire down to be the absolute shortest possible length. Move wire around so that you will have less disturbance, and the 200pF cap will also work, but should not be needed if your wiring is done properly. Do you have a picture so we can give more help?


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