MT8870 DTMF Audio/Speech Decoding Telephone Module
- Power Input: 5V Nominal (4.5V - 5.5V)
- 5 Channel Interface
- Detects 0-9, A-D, *, #
- 54” Pin pitch
- On-board 3.5mm jack input Facility
- On-board MT8870 frequency decoder chip
- On-board voice input interface
- On-board LED lights for output state indication
- Low power consumption
- Internal gain setting amplifier
- Adjustable guard time
- 5 Channel interface
- Power-down mode
- Inhibit mode
- Does not require external circuits or wiring,
- Dimension: 37 x 25 x 12 mm