TEA1095T 查看數據表（PDF） - Philips Electronics

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TEA1095T

Voice switched speakerphone IC

Philips Electronics 

Philips Semiconductors

Voice switched speakerphone IC

Product specification

TEA1095

FEATURES

• External power supply with power-down function

• Transmit channel with:

– externally adjustable gain

– transmit mute function

• Receive channel with:

– externally adjustable gain

– logarithmic volume control via a linear potentiometer

– receive mute function

• Duplex controller consisting of:

– signal envelope and noise envelope monitors for both

channels with:

externally adjustable sensitivity

externally adjustable signal envelope time constant

externally adjustable noise envelope time constant

– decision logic with:

externally adjustable switch-over timing

externally adjustable idle mode timing

externally adjustable dial tone detector in receive

channel

– voice switch control with:

adjustable switching range

constant sum of gain during switching

constant sum of gain at different volume settings.

APPLICATIONS

• Mains, battery or line-powered telephone sets

• Cordless telephones

• Answering machines

• Fax machines

• Hands-free car kits.

GENERAL DESCRIPTION

The TEA1095 is a bipolar circuit, that in conjunction with a

member of the TEA106X, TEA111X families of

transmission or TEA1096 transmission/listening-in circuits

offers a hands-free function. It incorporates a transmit

amplifier, a receiver channel amplifier and a duplex

controller with signal and noise monitors on both channels.

ORDERING INFORMATION

TYPE

NUMBER

TEA1095

TEA1095T

TEA1095TS

PACKAGE

NAME

DESCRIPTION

DIP24

SO24

SSOP24

plastic dual in-line package; 24 leads (600 mil)

plastic small outline package; 24 leads; body width 7.5 mm

plastic shrink small outline package; 24 leads; body width 5.3 mm

VERSION

SOT101-1

SOT137-1

SOT340-1

1997 Nov 25

2

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