HT9200B - DTMF Generators
The HT9200A/B tone generators are designed for MCU interfaces.
They can be instructed by a MCU to generate 16 dual tones and 8 single tones from the DTMF pin.
The HT9200A provides a serial mode whereas the HT9200B contains a selectable serial/parallel mode interface for various applications such as
HT9200B Features
* Operating voltage: 2.5V~5.5V
* Serial mode for the HT9200A
* Serial/parallel mode for the HT9200B
* Low standby current
* Low total harmonic distortion
* 3.58MHz crystal or ceramic resonator
* HT9200A: 8-pin DIP/SOP package HT9200B: 14-pin SOP package General Descript
