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HT9020

Part Number	HT9020
Manufacturer	Holtek Semiconductor
Description	Call Progress Tone Decoder & ABR Controller
Published	Feb 21, 2007
Detailed Description	www.DataSheet4U.com HT9020 Call Progress Tone Decoder & ABR Controller Features • • • • • Low cost 32768Hz crystal Low ...
Datasheet	HT9020 PDF File

Overview

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 fi...

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