This data sheet introduces the TEA1097's functions and features. TEA1097 is a speech and loudspeaker amplifier IC with auxiliary inputs/outputs and analog multiplexer.
The TEA1097 is a bipolar integrated circuit dedicated to telephone applications. It integrates a line interface, handset and earpiece amplifiers, base microphone and loudspeaker amplifiers, specific auxiliary inputs/outputs, and an analog multiplexer controlled by logic inputs from a microcontroller.
The IC provides regulated power supplies for internal circuitry (3.0 V) and external peripherals like microcontrollers or diallers (3.35 V), as well as a filtered 2 V supply for electret microphones. It supports various telephone modes including line-powered sets, cordless telephones, fax machines, and digital handsfree systems.
The maximum line current for the TEA1097H package is 140 mA.