Description
INTEGRATED CIRCUITS DATA SHEET UBA2050(A); UBA2051(A;C) One-chip telephone ICs with speech, dialler and ringer functions Product speciļ¬cation Supers.
The ICs UBA2050, UBA2050A, UBA2051, UBA2051A and UBA2051C contain all the functions needed to build a fully electronic telephone set.
Features
* Speech/transmission part
* Low DC line voltage; operates down to 1.45 V (excluding voltage drop over external polarity guard)
* Line voltage regulator with adjustable DC voltage
* Regulated 3.3 V supply (VDD) for the dialler part and peripherals compatible with:
* Spe
Applications
* can be easily adapted to meet different requirements. Speech/transmission part The speech/transmission part performs all transmission and line interface functions required in fully electronic telephone sets. It performs electronic switching between transmission and dialling. The IC operates at a DC
