TDA1579 Description
The TDA1579 decoder is for radio transmissions having 57 kHz amplitude-modulated subcarriers as used in the German 'Verkehrs Warnfunk' (VWF) traffic warning system.
TDA1579 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
- Driver output for SK indicator (LED)
- SK and BK control outputs
- + 80 °C mDKon ∆mDK tdDKon tdDKoff
- 13 3.6 750 750
- % dB ms ms mBKon ∆mBK tdSKon tdSKoff