MT8870 DTMF Voice Decoder Module Telephone Audio Decoder Speech Decoding The module uses the vehicle multi-frequency decoder chip MT8870.The module has a voice input interface board.With five LED indicators, easy to konw the output status.The chip is mainly made of basic pins.Fine workmanship ensures good performance.

Features:

• MT8870 module decodes DTMF signals from an audio source and it is suitable for remote monitoring applications, telephone answering machines and more
• A low power device DTMF decoder chip. It is a complete DTMF receiver integrating both the band-split filter and digital decoding functions
• On-board MT8870 frequency decoder chip
• On-board audio input interface
• On-board LED lights for output status indicator

Specifications:

• Operating voltage: 3V – 5V DC
• Dimensions: 26.5 x 24.5mm
• on board MT8870 complex frequency decoder chip
• on board voice input interface
• on board 5 led indicator
• Main pin lead out already
• PCB size:26.5(mm)x24.5(mm)