Casio CZ-1 - Page 115

When
the
voltage of
(a)
is
2
volts,
it takes
only
9
microseconds to
reach the
threshold
level.
Thrtihold
Itvtl
As VCO
receives a
triangle
waveform
from the
Three-
Phase
LFO,
it
oscillates
from
55.6
KHz
to
33.3
KHz
in
accordance
with the voltage
level of LFO output.
21-5.
BBO
(Bucket
Brigade
Device)
BBO
>OUT
Clock
The
BBD contains
serial -connected delay
elements.
The input
signal
is shifted
one
step
per one
clock pulse.
The clock pulse is generated
in
the
VCO, and
as it
varies from
33.3
KHz
to
55.6
KHz, the delay
time varies.
Sound
signal
18k
BBOI py^r
-J
1
-
H
BBD?
J
30k
-H
BBD3
hWH-
U^"*
38k
Mia.
L-OUT
01
Mi*.
•ROUT
01
02
I
»3
03
II
anon
Model
CZ-1
employs three
BBDs
in
order
to
give
better
stereo
effect.