TDA7330B

® TDA7330B SINGLE CHIP RDS DEMODULATOR + FILTER HIGH PERFORMANCE, 57KHz BANDPASS FILTER (8th ORDER) FILTER ADJUSTMENT FREE AND WITHOUT EXTERNAL COMPONENTS PURELY DIGITAL RDS DEMODULATION WITHOUT EXTERNAL COMPONENTS ARI (SK INDICATION) AND RDS SIGNAL QUALITY OUTPUT 4.332MHz CRYSTAL OSCILLATOR (8.664MHz OPTIONAL) LOW NOISE MIXED BIPOLAR/CMOS TECHNOLOGY DESCRIPTION The TDA7330B is a RDS demodulator. It recovers the additional inaudible RDS information which is transmitted by FM radio broadcasting stations. The output data signal (RDDA) and clock signal (RDCL) can be further processed by a suitable RDS decoder (microprocessor). The device operates in accordance with the EBU (European Broadcasting Union) specifications. The IC includes a 2nd order antialiasing input filBLOCK DIAGRAM DIP20 SO20 ORDERING NUMBERS: TDA7330B TDA7330BD ter, a 57KHz switched capacitor band pass filter, a smoothing filter and cross detector, a bit rate clock recovery circuit, a 57KHz PLL, BI-PHASE PSK decoder, differential decoding circuit, ARI indication and RDS signal quality output. November 1999 1/9 TDA7330B ABSOLUTE MAXIMUM RATINGS Symbol VCC Top Tstg Supply Voltage Operating Temperature Range Storage Temperature Parameter Value 7 -40 to 85 -40 to 150 Unit V °C °C THERMAL DATA Symbol Rth j-case Description Thermal Resistance Junction-case Typ. DIP20 100 SO20 200 Unit °C/W PIN CONNECTION (Top view) PIN FUNCTION Nr. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Name MUXIN Vref COMP FIL OUT GND T1 T3 T4 ...