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Cougar Expander

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The ASM2-Cougar Expander PCB provides the following additional functions:-

MonoDAC

The MonoDAC is a scaled-down version of the PolyDAC

SPECIFICATION
Resolution
12-bits on all analogue outputs
Gate (x1)
scaleable from 5V to 10V (factory build = 5.0V)
Note (x1)
1V/Oct
Velocity (x1)
0-10V
Pitchbend
-1V through 0V to +1V
Mod Wheel
0V through to 10V
After touch
0V through to 10V
Sustain
0V, 10V when on
CC1 - CC2
0V to 10V
RETRIGGER
When set to on and a new note comes in whilst an old one is held, the gate will ‘dip’ briefly
ASSIGN
This allows you to assign MIDI CC’s to the 4 ‘CV’ outputs.

The CGS736 is a pulse divider with integer divisions between 2 and 8 and 16, 32 and 64. The divider is used to generate interrelated pulses for use in creating poly-rhythms, and unusual sequences. It can also be run at audio frequencies as a sub-oscillator/sub harmonic generator. The output pulse from each division is one clock cycle in length, and the relationship between pulses is fixed. Specifically, the /4 output will correspond to every second pulse from the [/2] output. Likewise, the [/8] will correspond to every second pulse from the [/4] output, and the [/6] will correspond to every second pulse from the [/3] output. Needless to say, the [/2] and [/3] groups are not related to each other, or to the [/5] or [/7] outputs.

Power Supply

A small power supply circuit that generates the +/-ve rails for both the Expander and attached main board. Requires an external 15VDC 2.4A power supply


Email:  elby-designs@bigpond.com
Copyright 2000. All rights reserved.     Revised: January 17, 2019