TEA1111A - earpiece volume controller

Product Overview

NXP

Part number	TEA1111A
Manufacturer	NXP
File Size	129.65 KB
Description	earpiece volume controller
Datasheet	TEA1111A Datasheet
Additional preview pages of the TEA1111A datasheet.

The TEA1111A is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets.

Low DC line voltage; operates down to 1.5 V (excluding voltage drop across external polarity guard).
Line voltage regulator with adjustable DC voltage.
3.25 V regulated strong supply point for peripheral circuits compatible with:.
Speech mode.
Ringer mode.
Trickle mode.
Transmit stage with:.
Microphone amplifier with symmetrical high impedance inputs.
DTMF amplifier with confidence tone on earpiece.
Rece.

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Published: Apr 16, 2005 |