TEA1067 Overview
The TEA1067 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. The circuit is able to operate down to a DC line voltage of 1.6 V (with reduced performance) to facilitate the use of more telephone sets in parallel.
TEA1067 Key Features
- Low DC line voltage; operates down to 1.6 V (excluding polarity guard)
- Voltage regulator with adjustable static resistance
- Provides supply with limited current for external circuitry
- Gv Gv 44 20
- VCC 2.5
- VCC 2.2 2.4 ICC ICC
- 1 55 Iline Iline Iline 11 11 1
- SYMBOL VLN MIN. 3.65 TYP. 3.9
- Asymmetrical high-impedance input (32 kΩ) for electret microphone