(China (Mainland))
Product Summary
The HT9170D is a Dual Tone Multi Frequency (DTMF) receiver integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit mode operations. The HT9170D uses digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output.
Parametrics
HT9170D absolute maximum ratings: (1)Supply Voltage: 0.3V to 6V; (2)Storage Temperature: 50℃ to 125℃; (3)Input Voltage: VSS0.3V to VDD+0.3V; (4)Operating Temperature: 20℃ to 75℃.
Features
HT9170D features: (1)Operating voltage: 2.5V~5.5V; (2)Minimal external components; (3)No external filter is required; (4)Low standby current (on power down mode); (5)Excellent performance. Tristate data output for MCU interface; (6)3.58MHz crystal or ceramic resonator; (7)1633Hz can be inhibited by the INH pin.
Diagrams
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 HT9170D |
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HT9170 |
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HT9170B |
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HT9170D |
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HT9172 |
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