The VCADSR 7B is a fully voltage-controlled ADSR envelope generator chip. In addition to 0-5V CV control of Attack, Decay, Sustain, and Release, it also includes CV control of output level and includes an overall Time CV for modulation of the envelope time.Download Electric Druid VCADSR 7B Datasheet
The datasheet includes example circuit diagrams, example waveforms, and the chip pinout diagram.
There are further details on the VCADSR 7B project page.
This chip is being retired!
Current stocks are exhausted and we’re not taking any further orders for this chip at the moment. The plan is to develop a new improved version early next year. This new chip should be able to offer more features and improved envelope quality while being easier to use and the same cost. We’ll post more details when the project gets started. Thanks for bearing with us, but coding these things takes time!