Doepfer A-113 Subharmonic Oscillator - Manual (Page 2)

A-113 Subharmonic Generator System A - 100 doepfer
2
2. Basic principles
The Subharmonic Generator A-113 contains four ti-
mes the following elements (see fig. 1)
• digital frequency divider (rectangle outputs) with
2-digit display and up/down buttons for divisor adju-
stment
• rectangle/sawtooth converter (with single output)
• attenuator controlling the amount (i.e. the ampli-
tude) of the subharmonic in the mix output
The incoming signal (preferably the rectangle ouput of
a VCO) is fed into the four frequency dividers. The
frequencies of the rectangle signals generated by the
frequency dividers are determined by the current divi-
sors (1...24).
The rectangle outputs are converted to sawtooth wa-
veforms by means of the rectangle/sawtooth conver-
ters.
Fig. 1: Basic layout of the A-113