MT8880 IC-DTMF Encoder IC
The MT8880C is a monolithic DTMF transceiver with call progress filter. It is fabricated in Zarlink Semiconductor?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 signalling.
• Complete DTMF transmitter/receiver
• Central office quality
• Low power consumption
• Microprocessor port
• Adjustable guard time
• Automatic tone burst mode
• Call progress mode
Datasheet: MT8880 IC-DTMF Encoder IC
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