SC9270 - DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
The SC9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions.
The filter section uses switched capacitor techniques for high- and low-group filters and dialtone rejection.
Digital counting techniques are employed in the decoder to detect and decode a
SC9270 Features
* DIP-18-300-2.54
* Excellent performance
* CMOS, single 5 volt operation,
* Widely operating voltage: 1.2V ~ 5.25V
* Minimum board area
* Central office quality
* Low power consumption
* Power-Down mode (SC9270D only)
* Inhibit-mode (SC9270D only) APPLICATIONS