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Part Number
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HT9200 |
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Manufacturer
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Holtek Semiconductor Inc |
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Description
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DTMF Generators |
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Published
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Mar 26, 2005 |
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Detailed Description
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HT9200A/HT9200B DTMF Generators
Features
· Operating voltage: 2.0V~5.5V · Serial mode for the HT9200A · Serial/parallel...
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Datasheet
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HT9200
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Overview
HT9200A/HT9200B DTMF Generators
Features
· Operating voltage: 2.
0V~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, commun...
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