UTCTEA1062N

UTC TEA1062N / TEA1062AN LINEAR INTEGRATED CIRCUIT LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE DESCRIPTION The UTC TEA1062N / TEA1062AN 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. line voltage of 1.6V (with reduced performance) to facilitate the use of more telephone sets in parallel. SOP-16 DIP-16 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 (64kΩ) for dynamic, magnetic or piezoelectric microphones. *Asymmetrical high-impedance inputs (32kΩ) for electret microphones. *DTMF signal input with confidence tone. *Mute input for pulse or DTMF dialing. *Receivering amplifier for several types of earphones. *Large amplification setting range on microphone and earpiece amplifiers. *Line loss compensation facility , line current depedant (microphone and earpiece amplifiers). *Gain control adaptable to exchange supply. *Possibility to adjust the d.c. line voltage. QUICK REFERENCE DATA Line voltage at Iline=15mA Line current operating range[pin1] normal operation with reduced performance Internal supply current Supply current for peripherials at Iline=15 mA MUTE input LOW(1062 is HIGH) VCC...