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TEA1110AT View Datasheet(PDF) - Philips Electronics

Part NameTEA1110AT Philips
Philips Electronics Philips
DescriptionLow voltage versatile telephone transmission circuit with dialler interface


TEA1110AT Datasheet PDF : 20 Pages
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INTEGRATED CIRCUITS
DATA SHEET
TEA1110A
Low voltage versatile telephone
transmission circuit with dialler
interface
Product specification
Supersedes data of 1996 Nov 26
File under Integrated Circuits, IC03
1997 Apr 22
Direct download click here
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GENERAL DESCRIPTION
The TEA1110A is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets. It performs electronic switching between speech and dialling. The IC operates at a line voltage down to 1.6 V DC (with reduced performance) to facilitate the use of telephone sets connected in parallel.

FEATURES
• Low DC line voltage; operates down to 1.6 V (excluding voltage drop over external polarity guard)
• Voltage regulator with adjustable DC voltage
• Provides a supply for external circuits
• Symmetrical high impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones
• Asymmetrical high impedance input (32 kΩ) for electret 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.

APPLICATION
• Line powered telephone sets, cordless telephones, fax machines, answering machines.

 

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