UBA1702

Line interrupter driver and ringer.; Speech part\n? Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used\n? Adjustable over-current protection\n? Adjustable over-voltage protection for transmission circuit\n? Adjustable mute (dialling mode voltage; DMO or NSA)\n? Adjustable current loop detection (hook switch status)\n? Microcontroller supply\n? Provision for electronic hook switch.\nRinger part\n? Over-voltage protection\n? Ringer frequency output for frequency discrimination\n? Adjustable ringer threshold for piezo-driver enable\n? Three bits ringer volume control\n? Bridge-tied-load (BTL) output stage for piezo transducer\n? Fast start-up microcontroller supply.;

GENERAL DESCRIPTION\nThe UBA1702; UBA1702A performs the high voltage interface and ringer functions of the corded analog telephone set in close cooperation with a microcontroller and transmission circuit.FEATURES\nSpeech part\n? Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used\n? Adjustable over-current protection\n? Adjustable over-voltage protection for transmission circuit\n? Adjustable mute (dialling mode voltage; DMO or NSA)\n? Adjustable current loop detection (hook switch status)\n? Microcontroller supply\n? Provision for electronic hook switch.\nRinger part\n? Over-voltage protection\n? Ringer frequency output for frequency discrimination\n? Adjustable ringer threshold for piezo-driver enable\n? Three bits ringer volume control\n? Bridge-tied-load (BTL) output stage for piezo transducer\n? Fast start-up microcontroller supply.

恩XP

UBA1702

Line interrupter driver and ringer

PHI

UBA1702A

Line interrupter driver and ringer

PHI

UBA1702AT

Line interrupter driver and ringer

PHI

UBA1702T

Line interrupter driver and ringer

PHI