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TDA1581T - radio transmissions Decoder

General Description

The TDA1581T decoder is for radio transmissions having 57 kHz amplitude-modulated subcarriers as used in the german ‘Verkehrs Warnfunk’ (VWF) traffic warning system.

Key Features

  • Selective subcarrier amplifier (57 kHz) with gain control.
  • Transmitter identification signal (SK) decoder.
  • Area identification signal (BK) and announcement identification signal (DK) active filtering.
  • BK and DK decoders (Schmitt trigger with switched hysteresis).
  • BK and DK switch-on/switch-off delay circuits.
  • SK and BK control outputs.

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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 TDA1581T Decoder for traffic warning (VWF) radio transmissions Preliminary specification File under Integrated Circuits, IC01 March 1992 Philips Semiconductors Preliminary specification Decoder for traffic warning (VWF) radio transmissions FEATURES • Selective subcarrier amplifier (57 kHz) with gain control • Transmitter identification signal (SK) decoder • Area identification signal (BK) and announcement identification signal (DK) active filtering • BK and DK decoders (Schmitt trigger with switched hysteresis) • BK and DK switch-on/switch-off delay circuits • SK and BK control outputs.