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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I was wondering about the values I'd need for the resistor and capacitor to connect my pulsed dc input waveform to the LM2917.
Am I right in thinking I connect the signal through a capacitor and resistor in series to ground, and connect the LM2917 input to the joint between the capacitor and...
Are you sure? In this thread audioguru says it won't...
To clarify, I'm using the 8-pin version - will connecting the pulsed DC straight into pin 1 work?
I'm building a tacho for a race car, and I was originally going to use an LM2917 f-v converter and a LM3914 LED bar chart chip.
Thing is, the way I was going to supply the LM2917 with a frequency was through the ECU, which would output a logic level square wave of varying frequency.
I read...
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