TEA1112 Datasheet (NXP) - Low voltage versatile telephone transmission

TEA1112, Low voltage versatile telephone transmission

The TEA1112; TEA1112A are bipolar integrated circuits that perform all speech and line interface functions required in fully electronic telephone sets.

They perform electronic switching between speech and dialling.

The ICs operate at a line voltage down to 1.6 V DC (with reduced performance) to faci

TEA1112 Features

* Low DC line voltage; operates down to 1.6 V (excluding polarity guard)

* Voltage regulator with adjustable DC voltage

* Provides a supply for external circuits

* Symmetrical high impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones