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TEA1081 - telephone set peripherals power-down

General Description

The TEA1081 is an integrated circuit for use in line-powered telephone sets to supply peripheral circuits for extended dialling and/or loudspeaker facilities.

The IC uses a part of the surplus line current normally drawn by the voltage regulator of the speech/transmission circuit.

Key Features

  • High input impedance for audio signals.
  • Low DC series resistance.
  • High output current.
  • Large audio signal handling capability.
  • Low distortion.
  • Two modes of operation:.
  • output voltage that follows the DC line voltage.
  • regulated output voltage.
  • Power-down input.
  • Low number of external components. QUICK.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET TEA1081 Supply circuit with power-down for telephone set peripherals Product specification Supersedes data of February 1988 File under Integrated Circuits, IC03 September 1994 Philips Semiconductors Philips Semiconductors Product specification Supply circuit with power-down for telephone set peripherals FEATURES • High input impedance for audio signals • Low DC series resistance • High output current • Large audio signal handling capability • Low distortion • Two modes of operation: – output voltage that follows the DC line voltage – regulated output voltage • Power-down input • Low number of external components.