UNISONIC TECHNOLOGIES CO., LTD
TEA1110A
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION CIRCUI...
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 (64kΩ) for dynamic, magnetic
or piezo-electric microphones
* Asymmetrical high impedance input (32kΩ) 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
- TEA1110AG-S14-R
Package
DIP-14 SOP-14
DIP-14
Packing Tube
Tape Reel
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