HT9170D DTMF Receiver SOP-18

40.00 Incl. GST

Description

Description

Product Overview

HT9170D DTMF Receiver SOP-18 are Dual Tone Multi Frequency  receivers integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit mode operations. Such devices 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 implemented to divide tone signals into low and high group signals. A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.
The primary function of the HT9170D is to decode DTMF signals into their corresponding digital outputs. DTMF signals are composed of pairs of two audio tones, one from a low-frequency group (0-9, A-D) and the other from a high-frequency group (0-9, *, #).The HT9170D provides a four-bit binary output corresponding to the detected DTMF signal.

Features of HT9170D DTMF Receiver SOP-18

  • 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 UC interface
  • 3.58MHz crystal or ceramic resonator
  • 1633Hz can be inhibited by the INH pin
  • It is compatible with various microcontrollers and digital systems.
  • Package: SOP-18

 

 Download HT9170D DTMF Receiver Datasheet

 

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