HT9172 Datasheet

Features and Benefits

· Operating voltage: 2.5V~5.5V
· Minimal external component requirements
· No external filter required
· Low standby current in power down mode)
· Excellent performance HT9172 DTMF Receiver
· Tristate data output for MCU interface
· 3.58MHz crystal or ceramic resonator oscillator
· 1633Hz can be in.