The AS3310 is Alfa’s version of the CEM3310 IC. The AS3310 is a self-contained, precision ADSR type of envelope generator intended for electronic music and other sound generation applications. Attack, decay and release times are exponentially voltage controllable over a wide range, and the sustain level is linearly voltage controllable from 0 to 100% of the peak voltage Vp. All four control Inputs are Isolated from the rest of the circuitry so that the control pins of tracking units may be simply tied together.

On the negative power output, there is an internal Zener diode at 7.4 volts ± 10%, which allows the chip to supply a maximum voltage of ± 15 volts with a current-limiting resistor REE, and a minimum positive supply voltage of + 11 volts and a minimum negative supply voltage of -5 volts.. A series current limiting resistor must be added between pin 6 and the supply. Its value is calculated as follows: REE = (VEE - 7.5) / 0.010

The AS3310 is available in a 16-pin DIP package.

Features

• Large Time Control Range: 100,000:1
• Full ADSR Response
• True RC Envelope Shape
• Exceptionally Low Control Voltage Feedthrough: 90µVmax
• Accurate Exponential Time Control Scales
• Isolated Control Inputs
• Good Repeatability and Tracking Between Units Without
• External Trim
• Independent Gate and Trigger
• Wide power supply range:
  negative rail: -15V to -9V (via external resistor)
  positive rail: +11V to +15V