UNISONIC TECHNOLOGIES CO., LTD
TEA1110A
LOW VOLTAGE VERSATILE
TELEPHONE TRANSMISSION
CIRCUIT WITH DIALLER
INTERFACE
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.
LINEAR INTEGRATED CIRCUIT
SOP-14
DIP-14
FEATURES
*
Low DC line voltage; operates down to 1.6V (excluding voltage
drop over external polarity guard)
*
Voltage regulator with adjustable DC voltage
or piezo-electric microphones
*
Asymmetrical high impedance input (32kΩ) for electric
microphones
*
DTMF input with confidence tone
*
Provides a supply for external circuits
*
Symmetrical high impedance inputs (64kΩ) for dynamic, magnetic
earpieces
*
AGC line loss compensation for microphone and earpiece
amplifiers.
*
MUTE
input for pulse or DTMF dialling
*
Receiving amplifier for dynamic, magnetic or piezo-electric
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
Packing
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 9
QW-R108-014,C
UTC-IC [ UNISONIC TECHNOLOGIES ]
