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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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sound_boards:vc_oscillator [2020/11/06 12:22] admin [Sync] |
sound_boards:vc_oscillator [2020/11/26 01:44] (current) admin [Output] |
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| ==== Voltage In ==== | ==== Voltage In ==== | ||
| - | Any voltage between 0-5V at the VIN pin can control the frequency. Without input resistor the potentiometer wont have any effect on the frequency. But depending on the value of the input resistor the potentiometer will change the frequency, too. | + | Any voltage between 0-5V at the VIN pin can control the frequency. Without any input resistor the potentiometer wont have any effect on the frequency. But with an input resistor and depending on its value both the potentiometer and the input voltage will define the frequency. |
| Voltage Source-------10 kOhm-------- Voltage In | Voltage Source-------10 kOhm-------- Voltage In | ||
| Line 52: | Line 52: | ||
| ==== Sync ==== | ==== Sync ==== | ||
| - | For the Sync input one can use any 0-5V source a diode is needed. An additional resistor will decrease the syncing effect.\\ | + | For the Sync input one can use any 0-5V source, preferable a pulsed one. A diode in forward-biased direction is needed at the input. An additional resistor can decrease effect of the syncing signal.\\ |
| Sync Source -----/\/\/----->|-----Sync Input | Sync Source -----/\/\/----->|-----Sync Input | ||
| Line 59: | Line 59: | ||
| ==== Output ==== | ==== Output ==== | ||
| - | If one wants to use it as a sound source one needs to attach a resistor and a 47µF capacitor to the output:\\ | + | {{:sound_boards:vc_oscillator_patch.jpg?400|}}\\ |
| + | |||
| + | If one wants to use the VC Oscillator as a sound source one needs to attach a resistor divider and a 47µF capacitor to the output, depending on outputform it's 470/120 Ohm for the square output and 470/150 Ohm for the triangle output.\\ | ||
| + 47µF | + 47µF | ||
| square out----470 Ohm-----||-------Line Out | square out----470 Ohm-----||-------Line Out | ||