UBA2051 Datasheet (NXP) - (UBA2050) One-chip telephone ICs with speech / dialler and ringer functions

UBA2051, (UBA2050) One-chip telephone ICs with speech / dialler and ringer functions

The ICs UBA2050, UBA2050A, UBA2051, UBA2051A and UBA2051C contain all the functions needed to build a fully electronic telephone set.

In many places in the text, figures and tables, the description is not applicable for all the five types, but only for one or two or for a combination.

These combinat

UBA2051 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