Low voltage versatile telephone transmission circuit with dialler interface

文件：175.45 Kbytes 頁數(shù)：28 Pages

PHI

PHI

Low voltage versatile telephone transmission circuit with dialler interface

GENERAL DESCRIPTION\nThe 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 reduc ? Low DC line voltage; operates down to 1.6 V (excluding polarity guard)\n? Voltage regulator with adjustable static resistance\n? Provides supply with limited current for external circuitry\n? Symmetrical high-impedance inputs (64 k?) for dynamic, magnetic or piezoelectric microphones\n? Asymmetric;

恩XP

Low voltage versatile telephone transmission circuit with dialler interface

文件：175.45 Kbytes 頁數(shù)：28 Pages

PHI

PHI

Bipolar Transistors Silicon PNP Epitaxial Type (Darlington Transistor)

Applications ? Micromotor Drivers ? Hammer Drivers ? Switching ? Power Amplifiers Features (1) High DC current gain : hFE = 2000 (min) (VCE = -2 V, IC = -1 A) (2) Low collector-emitter saturation voltage : VCE(sat) = -1.5 V (max) (IC = -1 A, IB = -1 mA) (3) Complementary to TTD1509B

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TOSHIBA

東芝