7
Frequency Modulation
Linear FM Input:
The
Linear FM Inputs
are bipolar control voltage
inputs for the frequency parameter of the corresponding oscillator.
•
A signal present at the
Linear FM Input
will affect the corresponding
oscillator’s frequency.
•
Control voltage is summed with the values set by the
Coarse
and
Fine
knobs and scaled by the
Linear FM Attenuator
.
•
Audio rate signals will add non-harmonic side bands to the
original waveform.
Linear FM Attenuator:
The
Linear FM Attenuator
determines the depth
of frequency modulation applied to the corresponding oscillator.
•
Turning the knob clockwise will increase the depth of
frequency modulation.
•
Turning the knob anticlockwise will decrease the depth of
frequency modulation.
Oscillator Synchronisation
Sync Input:
The
Sync Inputs
are hard synchronisation inputs.
•
The corresponding oscillator’s cycle will reset with rising
edge signals.
•
Hard edged signals such as sawtooth/ramp and square waveforms
work best for the
Sync Input
.
•
Voltage threshold: 2.5V.
Hard Sync
