(China (Mainland))
Product Summary
The MT8880CE is a monolithic DTMF transceiver with call progress filter. The MT8880CE is fabricated in Mitel’s ISO2- CMOS technology, which provides low power dissipation and high reliability. The MT8880CE 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 signalling. 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.
Parametrics
MT8880CE absolute maximum ratings: (1)Power supply voltage VDD-VSS VDD: 6 V; (2)Voltage on any pin v1: Vss-0-3, Vdd+0.3 V; (3)Current at any pin (Except VDD and Vss): 10 mA; (4)Storage temperature tst: -65, +150℃; (5)Package power dissipation Pd: 1000 mW.
Features
MT8880CE features: (1)Complete DTMF transmitter/receiver; (2)Central office quality; (3)Low power consumption; (4)Microprocessor port; (5)Adjustable guard time; (6)Automatic tone burst mode; (7)Call progress mode.
Diagrams
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