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S5T0167 - DTMF DIALER FOR BINARY DATA-IN

Description

Pin No 1 2 Symbol VDD TEN Positive supply input Tone enable input.

An internal pull-up resistor is in a chip.

When this pin connects to logic low, the oscillator is inhibited and the tone generators and output transistor are turned off.

Features

  • Direct interface with microprocessor Generates 16 standard tones Uses inexpensive TV crystal or ceramic resonator (3.579545MHz) Very low total harmonic distortion Low power standby mode Binary data inputs with latches Wide Operating Voltage : 2.5 ~ 8.0V 14.
  • SOP.
  • 225B.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DTMF DIALER FOR BINARY DATA-IN S5T0167 INTRODUCTION The S5T0167 is a DTMF dialer for 4 bit binary data input from the microprocessor. When the tone enable input is low, the oscillator is inhibited and the device is in a low power consumption at standby mode.On the low to high transition of tone enable, data is latched into the device and selected the standard DTMF signals. The N-channel open drain output provides a MUTE output during tone generation. 14−DIP−300 FEATURES • • • • • • • Direct interface with microprocessor Generates 16 standard tones Uses inexpensive TV crystal or ceramic resonator (3.579545MHz) Very low total harmonic distortion Low power standby mode Binary data inputs with latches Wide Operating Voltage : 2.5 ~ 8.
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