TDA1581T Description
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 ‘BK-traffic area C’ signal;.
TDA1581T 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. GENERAL DESCRIPTION
- 30 TYP. 8.5 6 8
- 42 3.5 150 750 13 3.6 750 750
- MAX. 10
- +80 UNIT V mA mV kΩ mV V % dB ms ms % dB ms ms °C