Doepfer A-110 Standard VCO User Manual download pdf (Page 8)

A-110

VCO

System A - 100

doepfer

Input " is normally connected to a control voltage

governing pitch (for instance from a MIDI-CV interface,

or a master keyboard with a 1V / octave output).

Socket CV 1 " is designed as a normalled

socket, connected to whatever CV is present

on the internal System Bus. This CV (for

instance from a master keyboard) governs

the VCO’s pitch, unless a plug is inserted in

socket " .

If you put a control voltage (for instance from

an LFO) into socket " , the System Bus is

disconnected, and the VCO’s pitch is control-

led by this voltage.

As a rule, input § is used for FM - for vibrato, auto-

bend, or other pitch-related effects; the level of control

voltage passing to the VCO is adjusted with attenuator

3 .

$ PW CV 1 • % PW CV 2

Sockets $ and % are the Voltage Control Inputs for

the Pulse Width of the square wave that the VCO

produces. These voltages are summed. The level of

CV input % can be controlled with knob 5.

&/()

These four sockets are the VCO outputs: Square

wave (&), Sawtooth (/), Triangle (() and Sine wave

()).

Pitch is always the same for each of these outputs.

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Doepfer A-110 Standard VCO User Manual Page 8