AS3330 Voltage Controlled Amplifier VCA Chip

AS3330 Dual Voltage Controlled Amplifier (VCA) 18-Pin DIP

£4.87 incl VAT
(£4.06 exc. tax)
Price in points: 812 points
1.00 g.
In stock
Add to wish list

The CEM range of synth chips featured in numerous commercial and DIY synths in the 80’s before they ceased production. A number of the chips have been remanufactured by a Latvian electronics company and we delighted to be able to offer them through Soundtronics. Going forward, we will be designing synth modules using these chips.

The AS 3330 is a dual, high performance, voltage controlled amplifier intended for electronic musical instrument and professional audio applications. Each amplifier includes complete circuitry for simultaneous linear and exponential control of gain. In addition, the operating point of the amplifiers may be set anywhere from Class В to Class A, allowing the user to optimize those parameters critical to the particular application. Also featured are virtual ground summing nodes for both the signal and linear control inputs, so that signal and control mixing may be accomplished within the device itself. VCA outputs are signal currents, allowing the device to be conveniently used in two-pole voltage controlled filters, as well as dual voltage controlled amplifiers.


  • two independent voltage controlled amplifiers
  • simultaneous linear and exponential control Inputs
  • wide control range: 120dB min.
  • very accurate control scales for excellent gain tracking
  • exceptionally low control voltage feedthrough < -90dB
  • low distortion: < 0.1%
  • exceptionally low noise: < -100dB
  • operating point anywhere from Class B to Class A
  • summing nodes for signal and linear control inputs
  • current outputs for ease of use in voltage controlled 2-Pole Filters
  • can be used in VCO and VCF control paths without causing shift
  • ±15 volt supplies

No FAQ found

No posts found

Write a review

AS3330 Datasheet (7212-590-AS3330.pdf, 386 Kb) [Download]

Customers also bought ....

£0.49 incl VAT (£0.41 exc. tax)
The MFOS VCFs specify 49k9 resistors at 5%, we have not yet managed to source this value in a 5% tolerance or at we likely to be able to but we do have... read more
In stock
Price in points: 82 points

£58.80 incl VAT (£49.00 exc. tax)
A 1.6mm thick Sound Lab Mini Synth panel - 5U high, 10U wide (nominal 8.75 x 17.5") made from a semi-rigid plastic material... read more
In stock
Made to order
Normally dispatched within 1-6 days

£2.28 incl VAT (£1.90 exc. tax)
A blank laminate infill panel 1U wide by 5U high to blank off an unused slot in your modular synth. Like all of our laminate front panels, this panel should... read more
In stock

£3.48 incl VAT (£2.90 exc. tax)
A blank laminate infill panel 2U wide by 5U high to blank off an unused slot in your modular synth. Like all of our laminate front panels, this panel should... read more
In stock

£1.85 incl VAT (£1.54 exc. tax)
Introduction We find that wiring a MFOS PCB to the front panel controls is both time consuming and often detracts from the overall finish. We are not... read more
In stock