MT8880 DTMF Encoder IC

MT8880 DTMF Encoder IC 

The MT8880 is a complete DTMF (Dual-Tone Multi-Frequency) transceiver IC, capable of both encoding and decoding telephone keypad tones. It is widely used in telecommunication, remote control, and interactive voice response (IVR) systems.

This IC integrates a DTMF generator, DTMF receiver, and call progress tone detection, making it easy to interface with microcontrollers using a simple parallel or serial interface. The MT8880 can both generate DTMF tones from digital data and decode received DTMF tones into digital codes, providing a complete solution for tone dialing and control applications.

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Applications

• Telephone dialing systems
• Remote control and automation systems
• IVR (Interactive Voice Response) systems
• Telephone answering machines
• Wireless control and communication projects
• Security and access control systems
• Telecom and signaling equipment

Features

• Type: DTMF Encoder and Decoder (Transceiver)
• Integrates DTMF generator and receiver in one IC
• Detects and decodes all 16 standard DTMF tones
• Generates accurate DTMF tones from digital input
• Built-in call progress tone detection
• Simple microcontroller interface (parallel / serial modes)
• On-chip filters and amplifiers
• Crystal-controlled operation for high accuracy
• Low power consumption
• Reliable and widely used in telecom applications
• Package: DIP-18 / SMD (depending on variant)

MT8880-IC-DTMF-Encoder-IC Datasheet