MS8870 Overview
The MS8870 is a plete DTMF receiver integrating both the bandsplit filter and digital decoder functions, fabricated in double poly technology and is pin and function patible with MITEL8870. 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.
MS8870 Key Features
- plete DTMF receiver Low power consumption Adjustable guard time Central Office Quality CMOS, Single 5V operation O