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UBA1702

Part Number	UBA1702
Manufacturer	NXP
Description	Line interrupter driver and ringer
Published	Sep 12, 2005
Detailed Description	INTEGRATED CIRCUITS DATA SHEET UBA1702; UBA1702A Line interrupter driver and ringer Product speciﬁcation Supersedes da...
Datasheet	UBA1702 PDF File

Overview

INTEGRATED CIRCUITS DATA SHEET UBA1702; UBA1702A Line interrupter driver and ringer Product speciﬁcation Supersedes data of 1996 Jan 09 File under Integrated Circuits, IC03 1997 Sep 29 Philips Semiconductors Product speciﬁcation Line interrupter driver and ringer FEATURES Speech part • Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used • Adjustable over-current protection • Adjustable over-voltage protection for transmission circuit • Adjustable mute (dialling mode voltage; DMO or NSA) • Adjustable current loop detection (hook switch status) • Microcontroller supply • Provision for electronic hook switch.
Ringer part • Over-voltage protection • Ringer frequency output for frequency discrimination • Adjustable ringer threshold for piezo-driver enable • Three bits ringer volume control • Bridge-tied-load (BTL) output stage for piezo transducer • Fast start-up microcontroller supply.
APPLICATIONS Miscellaneous UBA1702; UBA1...

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