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8870 DTMF IC

 30.00  25.00

  • DTMF receiver integrating both the bandsplit filter and digital decoder functions.
  • The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone-pairs into a 4-bit code.
  • External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.
  • Single 18-pin DIP

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