HT9020 - Call Progress Tone Decoder & ABR Controller

Product Overview

Holtek Semiconductor

Part number	HT9020
Manufacturer	Holtek Semiconductor
File Size	502.89 KB
Description	Call Progress Tone Decoder & ABR Controller
Datasheet	HT9020 Datasheet
Additional preview pages of the HT9020 datasheet.

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

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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Published: Feb 21, 2007 |