September 2013

Rev 8

1/12

12

TDA7479

Single chip RDS demodulator + filter

Features

■ Very high RDS demodulation quality with

improved digital signal processing

■ High performance, 57 kHz 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

■ 4.332 MHz crystal oscillator

(8.664 and 17.328 MHz optional)

■ Low noise CMOS technology

■ Low radiation

Description

The TDA7479 recovers the additional inaudible

RDS information which is transmitted by FM radio

broadcasting stations and operates in accordance

with the EBU (European Broadcasting Union)

specifications.

The device is made up of two sections: a

cascaded antialiasing + switched capacitors 8th

bandpass filter for precise RDS band selection

and a demodulating section that performs the

extraction od RDS data stream (RDDA) and clock

(RDCL), to be further processed by a suitable

RDS decoder.

Outputs for RDS signal quality and ARI indication

are also present.

SO16

TSSOP16

Table 1.

Device summary

Order code

Package

Packing

E-TDA7479D(1)

1.

Device in ECOPACK® package (see Section 5: Package information on page 9).

SO16

Tube

E-TDA7479AD(1)

TSSOP16

Tube

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