TEA1068 Datasheet (NXP) - Versatile telephone transmission

TEA1068, Versatile telephone transmission

The TEA1068 is a bipolar integrated circuit performing all speech and line interface functions required in fully electronic telephone sets.

It performs electronic switching between dialling and speech.

MAX.

4.7 140 100 1.3 82 UNIT V mA mA mA µA * * 60 39 6.3 60 1 +75 V V dB dB dB

TEA1068 Features

* Voltage regulator with adjustable static resistance

* Provides supply for external circuitry

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

* Asymmetrical high-impedance input (32 kΩ) for electret microphone