HT9200A
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 Description
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 security systems, home automation, remote control through telephone lines, munication systems, etc.
Selection Table
Function Part No.
HT9200A HT9200B
Operating Voltage
2.5V~5.5V 2.5V~5.5V
OSC Frequency
3.58MHz 3.58MHz
Interface
Serial Serial/Parallel
Package
8DIP/SOP 14SOP
Block Diagram
X 1 3 .5 8 M H z C r y s ta l/R e s o n a to r
X 2 O s c illa to r
D TM F G e n e ra to r
D TM F
D ATA C LK
S e r...
