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TEA1110A View Datasheet(PDF) - Unisonic Technologies

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TEA1110A Datasheet PDF : 9 Pages
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UNISONIC TECHNOLOGIES CO., LTD
TEA1110A
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE VERSATILE
TELEPHONE TRANSMISSION
CIRCUIT WITH DIALLER
INTERFACE
SOP-14
„ DESCRIPTION
The UTC TEA1110A is a versatile telephone transmission circuit
providing full speech and line interface functions in electronic
telephone sets. This device works at a line voltage which can be as
low as 1.6V DC (with reduced performance) to enable parallel
connection of telephone sets. It also realizes electronic switching
between speeches and dialling.
The UTC TEA1110A is ideal for applications, such as line
powered telephone sets, cordless telephones, and fax machines,
answering machines.
„ FEATURES
* Low DC line voltage; operates down to 1.6V (excluding voltage
drop over external polarity guard)
* Voltage regulator with adjustable DC voltage
* Provides a supply for external circuits
* Symmetrical high impedance inputs (64k) for dynamic, magnetic
or piezo-electric microphones
* Asymmetrical high impedance input (32k) for electric
microphones
* DTMF input with confidence tone
* MUTE input for pulse or DTMF dialling
* Receiving amplifier for dynamic, magnetic or piezo-electric
earpieces
* AGC line loss compensation for microphone and earpiece
amplifiers.
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
TEA1110AL-D14-T
TEA1110AG-D14-T
TEA1110AL-S14-R
TEA1110AG-S14-R
Package
DIP-14
SOP-14
DIP-14
Packing
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 9
QW-R108-014,C
 

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