Getting two LM3916 chips to act as one?
I've tried to connect two LM3916 chips together in a VU meter to increase the number of LEDs to make the range broader with no luck. Each chips acts independently as if it were stand alone. Does anyone have a suggestion or possibly a diagram showing how to connect the chips to make them act as a single chip increasing the number of lights to increase the range? I followed the cascading connection in the manufacturer's data sheet, but I'm not sure how to power and deliver the signal to the second chip so I connected it like you would a single chip, tested it in dot mode with a potentiometer and than connected pin #9 from the first chip to pin #1 on the second chip. The power connection where the same as they were for the 1st chip.
Any advise and/or assitance would be greatly appreciated.