This document describes the features and characteristics of the TEA1098 speech and handsfree integrated circuit, including line interface, power supply, and handsfree functionality.
The Philips TEA1098 is an analog bipolar integrated circuit designed for telephony applications. It functions as a speech and handsfree IC, integrating line interface, handset microphone and earpiece amplifiers, and handsfree microphone and loudspeaker amplifiers. The device includes a duplex controller with signal and noise monitors for both channels.
| Line current operating range | 11 - 130 mA |
|---|---|
| Regulated supply voltage for internal circuitry | 2.75 - 13.0 V |
| Regulated supply voltage on pin Vppg | 3.1 - 3.6 V |
| Package type TEA1098TV | VS040 plastic very small outline package; 40 leads |
| Package type TEA1098H | QFP44 plastic quad flat package; 44 leads |
The TEA1098 is dedicated to telephony applications, specifically line powered telephone sets.
The IC provides a strong 3.35 V regulated supply for microcontrollers or diallers.
The preferred value for the Rs_pe resistor is 20 Ohms.