Description
The HT9172 is a Dual Tone Multi Frequency (DTMF) receiver device which includes an integrated digital decoder and band split filter functions as well as power-down and inhibit mode operations.
Features
- 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 inhibited by the INH pin.
- 18-pin DIP/SOP packaging
General.
HT9172 Datasheet
