AS3320 Voltage Controlled Filter VCF Chip

AS3320 Voltage Controlled Filter (VCF) 18-Pin DIP

 
£4.87 incl VAT
(£4.06 exc. tax)
Price in points: 812 points
7212-589
1.00 g.
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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 AS3320 is a high performance voltage controlled four-pole filter with on-chip voltage controllable resonance IC. The four independent sections may be interconnected to provide a wide variety of filter responses, such as low pass, high pass, band pass and all pass. A single input exponentially controls the frequency over greater than a ten octave range with little control voltage feed through. Another input controls the resonance in a modified linear manner from zero to low distortion oscillation. For those demanding applications, provision has been made to allow trimming for improved control voltage rejection. Each filter section features a variable gain cell which is fully temperature compensated, exhibits a better signal-to-noise ratio and generates its low distortion predominantly in the second harmonic. The device includes a minus two volt regulator to ensure low power dissipation and consequent low warm-up drift.

Features                                                                           

  • voltage controllable frequency - 12 octave range
  • voltage controllable resonance - from zero to oscillation
  • accurate exponential frequency scale
  • accurate linear resonance scale
  • low control voltage feedthrough -45dB typical
  • filter configurable into LPF, HPF, all pass, etc.
  • low noise: -86dB typical
  • low distortion in passband - 0.1% typical
  • low warm up drift
  • configurable into low distortion voltage controlled sine wave oscillator
  • bandwidth till 800kHz

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AS3320 VCF Datasheet (7212-589-AS3320.pdf, 418 Kb) [Download]

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