Doepfer A-163 User Manual
doepfer
A-163
VDIV
System A - 100
1. Introduction
Module A-163 is a voltage controlled audio frequency divider.
The frequency of the input signal (preferably the rectangle output of a VCO) is divided by an integer factor
(N = 1, 2, 3, 4 ... up to about 20). The
N
waveform is rectangle with 50% duty cycle.
VC Frequency Divider
A-163
output
CV
CV In
In
Out
Manual
The
divisor N
can be adjusted
manually
and modulated with an external control voltage (e.g. from LFO,
ADSR, Random, MIDI-to-CV, Theremin, Light-to-CV,
analog sequencer) with attenuator.
The following table shows the differences between the
divider modules available in the A-100 system.
A-115 A-113 A-163
Divisor
setting
Divisor
range
No. of
outputs
Output
waveform
fixed manually voltage contr.
2, 4, 8, 16 1... 24
4
(mixed)
rectangle sawtooth rectangle
integer
4
(mixed+single)
+ manually
1... 20
integer
1
1
A-163
VC Frequency Divider
System A - 100
doepfer
2. Overview
A-163
VDIV
VC Frequ. Divider
Manual
0
CV In
-5
In
Out
Divide
by N
Controls:
Manual: Control for manual setting of the integer
1
dividing factor N
: Symmetric (negative-0-positive) attenua-
CV
2
tor for control voltage at input
!
• fully clockwise: max. positive level
➀
10
CV
+5
➁
For the first production series the inscription of the CV
2
knob
formations in this manual are correct, i.e. left stop = 5, middle position = 0, right stop = +5.
is wrongly 0...10 instead of -5...0...+5. The in-
middle position: level 0
•
• fully counterclockwise: max. negative
level
In- / Outputs:
! CV In : Control voltage input
In : Audio input (preferably the rectangle
"
output of a VCO or LFO), i.e. the master
frequency for the divider
Out : Audio output of the frequency divider
§
(rectangle)
2
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