GENERAL DESCRIPTION
The RDS/RBDS demodulator is a CMOS device with integrated filtering and demodulating of RDS/RBDS signals coming from a multiplexed input data stream. Data signal RDDA and clock signal RDCL are provided as outputs for further processing by a suitable microcomputer, for example CCR921 and CCR922.
The SAA6581T replaces SAA6579 in function and pin-compatibility.

FEATURES
• Integrated switched capacitor filter
• Demodulates European Radio Data System (RDS) or the USA Radio Broadcast Data System (RBDS) signals
• Oscillator frequencies: 4.332 or 8.664 MHz
• Integrated ARI clamping
• CMOS device
• Single supply voltage: 5 V
• Extended temperature range: −40 to +85 °C
• Low number of external components.

APPLICATIONS
The RDS/RBDS system offers a large range of applications from the many functions that can be implemented. For car radios the most important are:
• Program Service (PS) name
• Traffic Program (TP) identification
• Traffic Announcement (TA) signal
• Alternative Frequency (AF) list
• Program Identification (PI)
• Enhanced Other Networks (EON) information.