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-pi...

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HT9170 Picture
SeekIC No. : 004367179 Detail

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 int...

floor Price/Ceiling Price

Part Number:
HT9170
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/27

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Product Details

Description



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



Pinout

  Connection Diagram


Specifications

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.



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 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 by HT9170 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.




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