doepfer a-160-2 clock/trigger divider ii price : $125.00

module a-160-2 is an enhanced version of the standard clock divider a-160. the module is a frequency divider for clock/trigger/gate signals, designed to be a source of lower frequencies, particularly for rhythm uses. the clock input will take any digital signal from, eg., an lfo, midi sync, or the gate from a midi-cv interface. at the outputs, you have access to three sets of seven different sub-divided clock signals, from half the clock frequency down to 1/128. the low/high levels of the output signals are 0v and about +10v.

the a-160-2 also has a reset input. whenever a reset signal is sensed, all outputs are set to certain levels which depend upon the selected mode.

these are the most important features of the module:
three different sets of dividing factors, selected by a three-position switch at the front panel:
power of two: 2, 4, 8, 16, 32, 64, 128
prime numbers: 2, 3, 5, 7, 11, 13, 17
integer: 2, 3, 4, 5, 6, 7, 8

two output modes, selected by a two-position switch at the front panel:
gate mode: outputs act like the outputs of typical binary dividers
trigger mode: in this mode the outputs are and-wired with the clock signal (i.e. the clock pulsewidth affects the pulsewidth of the outputs)

clock edge type selected by a jumper on the pc board:
positive: the rising edge of the clock signal triggers the state change of the outputs
negative: the falling edge of the clock signal triggers the state change of the outputs

reset behaviour by two jumpers on the pc board:
level triggered: the level at the reset input triggers the reset
edge triggered: the edge of the signal at the reset input triggers the reset
positive: a high level (> 2.5v) or the rising edge at the reset input triggers the reset
negative: a low level (< 1 v) or the falling edge at the reset input triggers the reset

output polarity selected by a jumper on the pc board:
positive: non-inverted outputs
negative: all seven outputs are inverted



the sketches show the behaviour of the outputs for the different modes:




this document shows the position and the function of the jumpers in question.

note: in the final version of the module the upper toggle switch (i.e. the switch which is used to select between gate and trigger outputs) is also a 3-position switch. the center position is labelled "cst" as an abbreviation for "custom" mode. so far the custom mode is not yet implemented. for future firmware versions a custom mode is planned that can be selected by means of two unused jumpers (probably inverted gate output mode or inverted trigger output mode).

note: it is not possible to connect the a-161 to the a-160-2 as the conception of the a-160-2 is totally different compared to the a-160 with it's fixed binary dividing.



this module has a maximum current draw of 50ma. it requires 4 te/hp worth of space to fit in a eurorack frame.