MT8870 MT8870DS DTMF Decoder Module

The MT8870 Tone Decoder is a kind of common used multifrequency decode IC product developed by the MITEL company. It is a compete DTMF receiver. After it received the DTMF signal it will divide the signal into high frequency group and low frequency group and send the signal to the digital decoder which can figure out the key value then send it to the outside Bus via four lines( Q1 Q2 Q3 Q4) as the binary form.

Features:

• Working voltage: 5V
• On-board voice input interface
• On-board LED it is very convenient to check the output state.

Applications:

1. Receiver system for British Telecom (BT) or CEPT Spec (MT8870D-1)
2. Paging systems
3. Repeater systems/mobile radio
4. Credit card systems
5. Remote control
6. Personal computers
7. Telephone answering machine

Package Includes:

• 1 x MT8870 MT8870DS DTMF Decoder Module