TEA1067T
Description
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.
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
- June 1990 2 Rexch 0.4 - ∆Gv Vexch 5.5 36 5.9 - Gv Gv 44 20
- VCC 2.5 - VCC 2.2 2.4 ICC ICC
- SYMBOL VLN MIN. 3.65 TYP. 3.9 TEA1067
- Asymmetrical high-impedance input (32 kΩ) for electret microphone
- DTMF signal input with confidence tone
- Mute input for pulse or DTMF dialling
- Power down input for pulse dial or register recall
