Advertisement
7
Waveform
Setting
®
m
®
PWM
Waveform
N
Saw Tooth
Square
Pulse
Description
The
sawtooth
wave
contains
a
fundamental
sine
wave and
its
integral
harmonic
sine
waves
at a
fixed
ratio.
The
level
of
each harmonic
is
as
shown
on
the
right.
When
fundamental
content
is
1,
the content
of
«th harmonic
is
1/n.
The
square
wave
contains
a
fundamental
sine
wave and
its
odd numbered
harmonics
at a
fixed
ratio.
The
level
of
each
harmonic
is
the
same
as
sawtooth
wave; the content
of
nth
harmonic
is
1/«;
except
that there are
no even
numbered
harmonics.
With
pulse
wave, the
har-
monic
content
greatly varies
depending
on
the
pulse
width.
It
is
characterized
by
a
lack
of the
nth harmonic
series
when
the pulse
width
is
1/«.
The
example
on
the
left
lacks 3rd,
6th,
and 9th
harmonics because
the pulse
width
is
1/3 (33%).
Harmonic
Content
F
2
3
4
5
6
7
n
ra
3
5
7
PULSE
WIDTH
at
33%
(1/3)
nn
F
2
4
5
7
Square
wave one
octave lower than the
DCO's
(
|
|J
)
Pulse Width
^Manual
PWM
PWM MODE
SWITCH Q)
^
MAN
PU
LSE Wl
DTH
(3)
^
Determins
the Pulse width.
50%-"
PWMby
LFO
PULSE
MODE
SWITCH
(g)
^
LFO
PULSE
WIDTH MODULATION
(3)
>
Adjusts the
intensity of
nnodulation.
LFO
SIGNAL
OUTPUT
WAVE-
FORM
PWM
by
ENV
PWM MODE
SWITCH
@
^
ENV
PULSE
WIDTH
MODULAT
ION
(S)
^
Adjusts the
intensity of
modulation.
^^^
SIGNAL
WAVE-
FORM
rrLonoomin
=
Advertisement
