MT8870 DTMF Decoder Receiver

Features:

• DTMF (Dual Tone Multiple Frequency) Receiver
• Used to detect DTMF Tones genrated by:
  • mobile phone DTMF keypads
  • web applications (Online tone generator)
  • Smart phone apps (DTMF Pad)
  • touch-tone phone to cell-phone call
  • YouTube Videos
  • Voice recorders
• Works with Arduino
• Complete DTMF Receiver
• Low power consumption
• Internal gain setting amplifier
• Adjustable guard time
• Central office quality
• Power-down mode
• Inhibit mode