The MT8870 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; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone-pairs into a 4-bit code.
- Complete DTMF Receiver
- Low power consumption
- Internal gain setting amplifier
- Adjustable guard time
- Central office quality
- Power-down mode
- Inhibit mode
- Backward compatible with MT8870C/MT8870C-1
|VDD||DC Power Supply Voltage||7||V|
|VI||Voltage on any pin||VSS-0.3||VDD+0.3||V|
|II||Current at any pin (other than supply)||10||m A|
|PD||Package power dissipation||500||m W|
* product image for illustration purposes only. actual product may vary.