Doepfer A-160-2 Eurorack Clock / Trigger Divider II Module

Doepfer A-160-2 - Clock / Trigger Divider

The Doepfer 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: output acts like the outputs of typical binary dividers.

• Trigger mode: in this mode the outputs are AND-wired with the clock signal (ie 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 (< 1V) 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.

Specifications