AS3320

AS3320-Voltage controlled filter (VCF)
Manufacturer: ALFA RPAR
Availability: Please select required attribute(s)
SKU: IM-AS3320-IC
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£5.40
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Quantity 5+ 12+
Price £4.47 £4.01

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 feedthrough. 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 feed-through -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

Product datasheet

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