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HT9020 - Call Progress Tone Decoder & ABR Controller

General Description

The HT9020 provides two modes; Call progress tone decoder and Busy redial controller, to support the application fields.

This feature detects a specified input signal and then outputs relative envelopes during a 2.32sec interval.

Key Features

  • Low cost 32768Hz crystal Low power consumption Operating voltage: 2.5V to 5.5V (CPT mode) 2.0V to 5.5V (ABR mode) Call progress tone decoder.
  • Fully decoded tristate call progress status output.
  • Works with traditional precision or PBX call progress tones Busy redial controller.
  • Repeat times: 3, 10 or 15 times ( 2, 5, 15 times by mask option).
  • 4.65, 32.6 and 62.8 sec break time (16.3sec by mask option).

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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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www.DataSheet4U.com HT9020 Call Progress Tone Decoder & ABR Controller Features • • • • • Low cost 32768Hz crystal Low power consumption Operating voltage: 2.5V to 5.5V (CPT mode) 2.0V to 5.5V (ABR mode) Call progress tone decoder – Fully decoded tristate call progress status output – Works with traditional precision or PBX call progress tones Busy redial controller – Repeat times: 3, 10 or 15 times ( 2, 5, 15 times by mask option) – 4.65, 32.6 and 62.8 sec break time (16.3sec by mask option) – Auto-terminate after 30 times (default) ringback tone receipt General Description The HT9020 provides two modes; Call progress tone decoder and Busy redial controller, to support the application fields.