HT 9170
Review: 5 - "A masterpiece of literature" by , written on May 4, 2006
I really enjoyed this book. It captures the essential challenge people face as they try make sense of their lives and grow to adulthood.
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HT 9170

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₹ 25.13
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 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.

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

Developer: HT9170_Datasheet

 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.

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

Developer: HT9170_Datasheet

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