Subscriber Line Interface Circuit

GENERAL DESCRIPTION\nThe MSA4709A is designed to provide BSH functions and to meet PABX transmission performance\nrequirements. This device provides two-wire to four-wire conversion function (Hybrid).FEATURES\n• B (Battery feed), S (Supervision), and H (Hybrid) functions integrated on chip.\n• Desig • B (Battery feed), S (Supervision), and H (Hybrid) functions integrated on chip.\n• All transmission performance parameters can be externally programmable.\n• Size and weight reduction over conventional approaches.\n• 1 channel built-in relay driver.\n• Package:\n   30-pin plastic Shrink DIP (SDIP3;

Subscriber Line Interface Circuit

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Piezo speaker amplifier

50 uA, LOW OPERATING CURRENT, ZENER DIODES

• 50µA, LOW OPERATING CURRENT, ZENER DIODES • LEADLESS PACKAGE FOR SURFACE MOUNT • DOUBLE PLUG CONSTRUCTION • METALLURGICALLY BONDED

LOW LEVEL ZENER DIODE 1.8 VOLTS THRU 43 VOLTS 500mW, 5 TOLERANCE

DESCRIPTION: The CENTRAL SEMICONDUCTOR CLL4678 Series Silicon Low Level Zener Diode is a high quality voltage regulator designed for applications requiring an extremely low operating current and low leakage. MARKING: CATHODE BAND

350mW LOW LEVEL ZENER DIODE 5 TOLERANCE

DESCRIPTION: The CENTRAL SEMICONDUCTOR CMPZ4678 Series silicon zener diode is a high quality voltage regulator designed for applications requiring an extremely low operating current and low leakage.

Silicon Epitaxial Planar Z-Diodes

Features ● Zener voltage specified at 50 μA ● Maximum delta VZ given from 10 μA to 100 μA ● Very high stability ● Low noise Applications     Voltage stabilization