Part Number: UBA1702
Function: Line Interrupter Driver and Ringer
Package: DIP 28 Pin Type
Manufacturer: NXP
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Description
The 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
1. Driver for the line interrupter that can be either a PMOST when UBA1702 is used or a PNP when UBA1702A is used
2. Adjustable over-current protection
3. Adjustable over-voltage protection for transmission circuit
4. Adjustable mute (dialling mode voltage; DMO or NSA)
5. Adjustable current loop detection (hook switch status)
Applications:
1. Telephone sets with software controlled ringer function
2. Telephone sets with electronic hook switch.