Phrog

Blue Lantern Modules

Filter

Phrogs Analog Filter
Width: 16HP
Current: +65mA,-65mA
PCB Stack: 1 Level, Skiff compatible.

What does this do?
This is an analog filter with a separate 3 channel mono mixer, and VCA combo. There is also an internal envelope generator with Decay. All this product needs is a VCO and a trigger signal to complete a mini voice.

The outputs on the filter are meant to be manually patched into one of the VCA audio inputs on the module to complete the mini voice. You can mix and match to create custom filter types.

The Feedback on the product 'Rez', is what makes this sound like an MS20 filter. There are diodes, used as a limiter, and also to wave shape when in self oscillation mode.

Features:
-2 audio inputs with 2 level control knobs.
-Bi-polar FM for the filter.
-Mod input with level knob for the filter.
-FCV Filter CV direct input for the filter.
All CV inputs for the Filter are 1V per octave, Exponential.

-REZ CV

-VOLT CUT output. +5v/5v output. Used to remote control another filter, with the master 'Cut' knob.
-Internal Envelope Generator, with Level Sends to VCA and Filter.

-Separate VCA circuit, with 3 channel mono mixer input.
-1 CV input for the VCA. 'VCV'.
-1 VCA output.

The filter will self oscillate into a sine wave and does track 1v per octave.