Part Number
|
HT9170 |
Manufacturer
|
Holtek Semiconductor Inc |
Description
|
DTMF Receiver |
Published
|
Mar 26, 2005 |
Detailed Description
|
HT9170 DTMF Receiver
Features
· · · · ·
Operating voltage: 2.5V~5.5V Minimal external components No external filter is ...
|
Datasheet
|
HT9170
|
Overview
HT9170 DTMF Receiver
Features
· · · · ·
Operating voltage: 2.
5V~5.
5V Minimal external components No external filter is required Low standby current (on power down mode) Excellent performance
· · · ·
Tristate data output for mC interface 3.
58MHz crystal or ceramic resonator 1633Hz can be inhibited by the INH pin HT9170B: 18-pin DIP package HT9170D: 18-pin SOP package
General Description
The HT9170 series are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions.
The H T 9 1 7 0 B a nd H T 9 1 7 0 D t y p es s u p p l y power-down mode and inhibit mode operations.
All types of the HT9170 series use digital counting techniques to detect an...
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