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PCA1070 - Multistandard programmable analog CMOS transmission

General Description

The PCA1070 is a CMOS integrated circuit performing all speech and line interface functions in fully electronic telephone sets.

The device requires a minimum of external components.

The transmission parameters are programmable via the I2C-bus.

Key Features

  • Line interface with:.
  • Voltage regulator with programmable DC voltage drop.
  • Programmable set impedance.
  • Output to control an external switching MOS transistor for pulse dialling.
  • Programmable DC voltage during pulse dialling.
  • Circuitry for short DC settling time.
  • Interface to peripheral circuits with:.
  • Supply for microcontroller and DTMF diallers.
  • Input to sense supply voltage of microcontroller and output for reset.

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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 PCA1070 Multistandard programmable analog CMOS transmission IC Product specification Supersedes data of 1996 Mar 06 File under Integrated Circuits, IC03 1997 Jun 20 Philips Semiconductors Product specification Multistandard programmable analog CMOS transmission IC FEATURES • Line interface with: – Voltage regulator with programmable DC voltage drop – Programmable set impedance – Output to control an external switching MOS transistor for pulse dialling – Programmable DC voltage during pulse dialling – Circuitry for short DC settling time • Interface to peripheral circuits with: – Supply for microcontroller and DTMF diallers – Input to sense supply voltage of microcontroller and output for reset of microcontroller – I2C-bus (programming of parameters, contro