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modules:dualvco

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modules:dualvco [2017/12/30 01:23]
steve [Specs]
modules:dualvco [2019/01/30 13:10] (current)
donald_dasher [Description/Usage]
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-It is a triangle core design using a special type of op-amp called an operational transconductance amplifier (OTA). The VCOs range from approx. ​19Hz up to 9500Hz, they are quite simple designs with reasonably low drift and can be tuned to 1V/oct (meaning for every 1V change on the CV input the frequency will change by 1 octave, useful if using a keyboard), but they are not exactly rock steady either. There is a trade-off between component quality and design complexity versus drift and accuracy. Anyhoo, the VCOs output triangle, square and pulse waveforms. The pulse width can be set with a pot or controlled by a CV (control voltage). Both VCOs have CV inputs to control pitch, one has a soft sync input, the other has an FM input. Try injecting all kinds of CVs and audio rate signals into these to see what effects you can get.+It is a triangle core design using a special type of op-amp called an operational transconductance amplifier (OTA). The VCOs range from approx. ​14Hz up to 11kHz, they are quite simple designs with reasonably low drift and can be tuned to 1V/oct (meaning for every 1V change on the CV input the frequency will change by 1 octave, useful if using a keyboard), but they are not exactly rock steady either. There is a trade-off between component quality and design complexity versus drift and accuracy. Anyhoo, the VCOs output triangle, square and pulse waveforms. The pulse width can be set with a pot or controlled by a CV (control voltage). Both VCOs have CV inputs to control pitch, one has a soft sync input, the other has an FM input. Try injecting all kinds of CVs and audio rate signals into these to see what effects you can get.
  
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modules/dualvco.txt ยท Last modified: 2019/01/30 13:10 by donald_dasher