U4055B - Low-Voltage Electronic Speech Circuit

Product Overview

TEMIC Semiconductors

Part number	U4055B
Manufacturer	TEMIC Semiconductors
File Size	176.79 KB
Description	Low-Voltage Electronic Speech Circuit
Datasheet	U4055B Datasheet
Additional preview pages of the U4055B datasheet.

The U4055B electronic speech circuit is a linear integrated circuit for use in telephone and other line fed terminal equipment.

It replaces the common speech circuit with carbon microphone, hybrid transformer, sidetone equivalent and ear protection rectifiers.

www. DataSheet4U. com D An electronic circuit replaces the microphone hybrid transformer D Symmetrical input for dynamic or piezo microphone D High performance through the use of dynamic transducers as the earphone (non-linear distortion 2 %) D DTMF interface with muting D Supply voltage for dialer D High range of line feeding current D Input resistance independent of line current and sidetone suppression circuit. D Built-in ear protection by earphone voltage limiter D Operation possible from 8.

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Published: Jul 14, 2008 |