NXP Semiconductors TDA1579T
The TDA1579 decoder is for radio transmissions having 57 kHz amplitude-modulated subcarriers as used in the German 'Verkehrs Warnfunk' (VWF) traffic warning system.| Part No. | TDA1579T |
|---|---|
| Datasheet | TDA1579T Download |
| Manufacturer |  NXP Semiconductors |
| Description | radio transmissions Decoder |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
TDA1579 TDA1579T● 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. QUICK REFERENCE DATA Measured in Fig.1 at ViSK = 8 mV; f = 57 kHz amplitude modulated with fm = 34.95 Hz and m = 60% for ‘BK-traffic area C’ signal; or with fm = 125 Hz and m = 30% for DK signal. PARAMETER Supply voltage Supply current Nominal input voltage Input impedance Control level Input voltage SK switch-on threshold level SK switch hysteresis SK switch-on delay SK switch-off delay DK switch-on threshold level DK switch hysteresis DK switch-on delay DK switch-off delay Ambient operating temperature range PACKAGE OUTLINES TDA1579: 18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 12.
