Some documentations and coverage of the AS3310 i found useful:
“The Envelope Shaper” by Digisound
This is a DIY ADSR design with the as3310 chip, i found it nice because it didnt feel too overwhelming and the function of the components are also explained in text
pdf taken from some magazine which explains how CEM3310/AS3310 works and what was cool about it back then
“Digisound Voice Card”
This is a bigger design schematic of the 3310 chip in use, i found it a little bit overwhelming because of the big schematic but it’s a good reference
Using the AS3310 with the AS3360
If you’re using these chips together, the envelope output from the AS3310 goes up to 5v and the AS3360 VCA expects 0-2v on the input.
Also the AS3310 will break down if you put more than 5v on the ADSR voltage control pins, but mistakes happen and it’s part of the learning process. I haven’t decided yet if i should use voltage regulators for it since someone in the synth DIY group recommended i try out the lm4040 voltage reference “chip”.
The 3310 chip also expects a gate and trigger so make sure you have both during trimming/designing the circuit.