MV8870 Datasheet | GEC Plessey Semiconductors

.. THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT REMENDED FOR NEW DESIGNS . DataShee . DataSheet 4 U . .. MV8870/MV8870-1 ADVANCE INFORMATION DS3140-2.1 MV8870 / MV8870-1 INTEGRATED DTMF RECEIVER The MV8870 / MV8870-1 is a plete DTMF receiver integrating both the bandsplit filter and digital decoder functions, fabricated in GPS’s double-poly ISO2-CMOS technology. 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 ponent count is minimised by...