DOEPFER A-190-2 Manual - Page 3

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3. In- / Outputs

Midi input

The Midi input of the A-190-2 is connected to the Midi output

of the Midi transmitter that is used to control the A-190-2

(e.g. Midi keyboard or sequencer).

Gate output

The Gate outputs turns "high" when a valid Midi note on

message is recognized by the A-190-2. It turns back to "low"

when the corresponding note off message occurs. The Gate

levels are +5V (high state) and 0V (low state). If desired the

gate polarity can be inverted. Details in chapter 5.

Usually the gate output is connected to the gate input of an

envelope generator (e.g. ADSR A-140) that is used to

control the VCA and/or VCF of the patch.

The A-190-2 has available a jumper that allows to connect

the Gate output of the module to the Gate line of the A-100

bus (see appendix).

Important note: The module comes with an installed Gate

jumper, i.e. one has to remove the jumper if e.g. an A-190-1

or A-185-1 is connected to the gate line of the same bus

board! If the A-190-2 has to be used as Gate source for the

A-100 bus the Gate connection of any other Gate source

(e.g. A-190-1 or A-185-1) has to be removed. Otherwise a

System A-100

short circuit is made between the outputs of the Gate

transmitters !

CV output "Note" (CV1)

This socket outputs a voltage that is controlled by the Midi

note number of a valid note on message (i.e. on the right

Midi channel and in the note range between the reference

note and 5 octaves beyond). The voltage range is 0 ... +5V

and the scale is 1V/Octave (i.e. 5 octaves range). 0V

corresponds to the reference note (see chapter 5), +5V to

the note that is 5 octaves beyond the reference note.

CV1 is affected by the glide control (see chapter 4).

A trimming potentiomer can be used to re-adjust the

1V/octave scaling if necessary (see attachment for details).

Usually this CV output is connected to the 1V/Oct

compatible CV input(s) of the voltage controlled oscillator(s)

(VCOs) of the patch. The output is buffered, i.e. it can be

used to control even 2 or more CV inputs of VCOs without

the need of an additional buffer.

The A-190-2 has a jumper on board the allows to connect

the CV output "Note" of the module to CV line of the A-100

bus (see appendix).

Midi-to-CV/Gate A-190-2