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E-TDA7479AD Folha de dados(PDF) 1 Page - STMicroelectronics |
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E-TDA7479AD Folha de dados(HTML) 1 Page - STMicroelectronics |
1 / 12 page November 2008 Rev 7 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 www.st.com |
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