Synthesizer voice a-111-5, System a-100, Doepfer – Doepfer A-111-5 Synthesizer Voice User Manual
Page 10

Synthesizer Voice A-111-5
System A-100
DOEPFER
10
controls 12 and 13b are fully CCW). To reduce the
sensitivity of this CV input an external attenuator module
has to be used (e.g. A-183-1).
5
ADSR Gate Input
This input is used to trigger the envelope generator (ADSR).
A trigger voltage between +5V and +12V is required to
trigger the envelope. The socket can be normalled to the
bus gate line provided that the corresponding socket JP3 is
installed (details in the appendix).
6
VCF External Audio Input
This is an external audio input that is added to the internal
VCO signal. E.g. a noise generator, a second VCO or any
other audio source can be used. The signal is processed by
the VCF and the VCA of the A-111-5 module. The input
sensitivity is about 1V. If the signal distorts the usage of an
attenuator is recommended (e.g. A-183-1). If the external
audio signal is too small an additional amplifier can be used
(e.g. A-183-3) to increase the level.
7
Inverted LFO1 Output
By default the inverted LFO1 signal is available at this
socket. It can be used to control other A-100 modules or
other inputs of the A-111-5 (e.g. controlling the PW or the
VCF frequency by LFO1). The internal jumpers (JP7, JP8,
JP9, JP10) of the module can be set in another way so that
a different signal appears at this socket (details in the
appendix). They can be used to control other A-100
modules.
8
ADSR Output
This socket outputs the ADSR signal. It can be used to
control other A-100 modules.
9
Audio Output
This is the audio output of the module. The typical output
level is 1V.