Module 120 - Envelope Generator ADSR

The ADSR 120 is one of the core modules essential to an analogue synth. Most frequently used to control a VCA but equally used to control the cut-off of a VCF. Larger systems can expect to have the need for many ADSR modules. In addition to the ADSR 120, a voltage controlled version, the VC ADSR 121 allows for dynamic changing of the ADSR values from external control sources. 

Features 

• Controls for Attack, Decay and Release envelope phases along with the Sustain level
• Time range selection switch x1 / x10
• Gate input for full ADSR output
• Manual gate button
• LED indicator of gate pulse
• AR Trig input for full AR envelope from a trigger pulse
• The AR Trig input can also be used for re-triggering the attack / decay phases whilst the gate input is active
• Gate output for cascading ADSR modules. Gate pulse width equal to the attack, decay and sustain periods (just the attack period when in AR trig mode).

Specification

• Supply voltage +/-12Vdc
• Supply current  +20mA / -23mA
• Output level 0-10V
• Typical delay times
  
  

  Short Time Mode
  	Min	50%	Max
  Attack	3mS	12mS	1S
  Decay	6mS	35mS	3S
  Release	7mS	40mS	3S
  ADSR	16mS	90mS	7S
  Long Time Mode
  	Min	50%	Max
  Attack	30mS	120mS	12S
  Decay	60mS	350mS	25S
  Release	70mS	400mS	30S
  ADSR	160mS	900mS	57S

  Available to order, dispatched in 3-4 weeks