UTC1062 Overview
LI NEAR I NTEGRATED CI RCUI T The UTC1062 is a bipolar integrated circuit performing all speech and line interface function required in the fully electronic telephone sets. It performs electronic switching between dialing speech. The circuit is able to operate down to d.c.
UTC1062 Key Features
- Low d.c. line voltage; operates down to 1.6V (excluding polarity guard)
- Voltage regulator with adjustment static resistance
- Provides supply with limited current for external circuitry
- Symmetrical high-impedance inputs (64k Ω for dynamic, magnetic or piezoelectric microphones
- Asymmetrical high-impedance inputs (32kΩ for electric microphones
- DTMF signal input with confidence tone
- Mute input for pulse or DTMF dialing
- Receiving amplifier for several types of earphones
- Large amplification setting range on microphone and ear piece amplifiers
- Line loss pensation facility , line current dependent (microphone and ear piece amplifiers)