This device implements the signal processing required by the European Broadcasting Union RDS (Radio Data System) standard and by the US NRSC (National Radio System Committee) RBDS (Radio Broadcast Data System) standard. It includes a band-pass filter, demodulator and data buffer on chip. RDS data can be read out from this on-chip data buffer by external clock input in slave operation mode.

• Bandpass filter: switched capacitor
• RDS demodulation: 57 kHz carrier and RDS data clock regeneration, biphase decode, differential decode
• Buffer: 128 bit (approx 100 ms); can be restored in on-chip data buffer RAM
• Master or slave output mode can be selected