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MFG:HOLTEK Package Cooled:DIP
Part Number: HT9170
MFG: HOLTEK
Package Cooled: DIP
Description: The HT9170 series are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and b...
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HT9170
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DataSheet
General Description
HT9170 General Description
The HT9170 series are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions. The HT9170B and HT9170D types supply power-down mode and inhibit mode operations. All types of the HT9170 series use digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output.
Highly accurate switched capacitor filters are employed to divide tone (DTMF) signals into low and high group signals. A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.
HT9170 Maximum Ratings
Supply Voltage..............................-0.3V to 6V
Input Voltage ...............VSS-0.3V to VDD+0.3V
Storage Temperature............... -50 to 125
Operating Temperature ..............-20 to 75
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Input Voltage ...............VSS-0.3V to VDD+0.3V
Storage Temperature............... -50 to 125
Operating Temperature ..............-20 to 75
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute MaximumRatings " may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
HT9170 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 C 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
` Minimal external components
` No external filter is required
` Low standby current (on power down mode)
` Excellent performance
` Tristate data output for C 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
HT9170 Connection Diagram
HT9170
PDF/DataSheet Download
- Datasheet: HT9170
- File Size: 127613 KB
- Manufacturer: HOLTEK [Holtek Semiconductor Inc]
- Click here to Download
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