TDA1581T Datasheet - NXP

TDA1581T radio transmissions Decoder

TDA1581T The TDA1581T decoder is for radio transmissions having 57 kHz amplitude-modulated subcarriers as used in the german ‘Verkehrs Warnfunk’ (VWF) traffic warning system. QUICK REFERENCE DATA Measured in Fig.3 at ViSK = 8 mV; f = 57 kHz amplitude modulated with fm = 34.95 Hz and m = 60% for ‘.

TDA1581T 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)

TDA1581T_PhilipsSemiconductors.pdf