DTMF AUDIO DECODER MODULE based on HT9170D decoder chip,with 3.5 mm jack. HT9170D: 18-pin SOP package Operating voltage: 2.5V~5.5V Minimal external components No external filter is required Low standby current (on power down mode) Excellent performance Tristate data output for MCU interface 3.58MHz crystal or ceramic resonator 1633Hz can be inhibited by the INH pin Includes 3.5 mm Audio Cable.

DTMF AUDIO DECODER MODULE based on HT9170D decoder chip,with 3.5 mm jack. HT9170D: 18-pin SOP package Operating voltage: 2.5V~5.5V Minimal external components No external filter is required Low standby current (on power down mode) Excellent performance Tristate data output for MCU interface 3.58MHz crystal or ceramic resonator 1633Hz can be inhibited by the INH pin Includes 3.5 mm Audio Cable.