The MT8880 is a monolithic DTMF transceiver with call progress filter. It is fabricated in Mitel’s ISO2- CMOS technology, which provides low power dissipation and high reliability. The DTMF receiver is based upon the industry standard MT8870 monolithic DTMF receiver; the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signaling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. A standard microprocessor bus is provided and is directly compatible with 6800 series microprocessors.
Features:-
- Complete DTMF transmitter/receiver
- Central office quality
- Low power consumption
- Microprocessor port
- Adjustable guard time
- Automatic tone burst mode
- Call progress mode
Specification:-
| Symbol | Parameter | Min | Max | Units |
| VDD | DC Power Supply Voltage | 6 | V | |
| VI | Voltage on any pin | VSS-0.3 | VDD+0.3 | V |
| II | Current at any pin (other than supply) | 10 | m A | |
| TSTG | Storage temperature | -65 | 150 | °C |
| PD | Package power dissipation | 1000 | m W |
MT8880-IC-DTMF-Encoder-IC Datasheet
* product image for illustration purposes only. actual product may vary.
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