E-TDA7478AD datasheet(1/8 Pages) STMICROELECTRONICS

номер детали	E-TDA7478AD

подробное описание детали	SINGLE CHIP RDS DEMODULATOR

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TDA7478

November 2004

1

FEATURES

■ VERY HIGH RDS DEMODULATION QUALITY

WITH IMPROVED DIGITAL SIGNAL

PROCESSING

■ HIGH PERFORMANCE, 57KHz BANDPASS

FILTER (8th ORDER)

■ FILTER ADJUSTMENT FREE AND WITHOUT

EXTERNAL COMPONENTS

■ PURELY DIGITAL RDS DEMODULATION

WITHOUT EXTERNAL COMPONENTS

■ RDS SIGNAL QUALITY OUTPUT

■ 4.332MHz CRYSTAL OSCILLATOR(8.664MHz

OPTIONAL)

■ LOW NOISE CMOS TECHNOLOGY

■ LOW RADIATION

2

DESCRIPTION

The TDA7478 recovers the additional inaudible RDS

information which is transmitted by FM radio broad-

casting 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 pro-

cessed by a suitable RDS decoder.

Output for RDS signal quality is also present.

SINGLE CHIP RDS DEMODULATOR

Figure 2. Block Diagram

2nd ORDER

ANTIALIASING

FILTER

8th ORDER

SC-BANDPASS

FILTER

MPX

4

270pF

-

+

8

FILOUT

12

VS

3

VREF

100nF

10

µF

OSCILLATOR &

DIVIDER

57KHz PLL

POLARITY

BIPHASE DEC.

INTEGRAL

BIPHASE DEC.

1187.5Hz

PLL

MUX

0

1

DIFF. DECODER

TEST LOGIC

QUAL DET.

6

GND

11

EXTRES

14

13

5

9

16

7

1

D03AU1490

TM

10

RDDA

2

QUAL

N.U.

RDCL

FSEL

OSEL

OSCOUT

OSCIN

4.332MHz

C2 47pF

C1 27pF

15

T57

Figure 1. Packages

Table 1. Order Codes

Part Number

Package

TDA7478D

SO16

E-TDA7478AD

TSSOP16

SO16

TSSOP16

Rev. 2

Аналогичный номер детали - E-TDA7478AD

производитель	номер детали	датащи	подробное описание детали
STMicroelectronics	E-TDA7478AD	120Kb / 11P	Single chip RDS demodulator 23-Sep-2013
STMicroelectronics	E-TDA7478ADTR	120Kb / 11P	Single chip RDS demodulator 23-Sep-2013

More results

Аналогичное описание - E-TDA7478AD

производитель	номер детали	датащи	подробное описание детали
STMicroelectronics	TDA7330B	114Kb / 9P	SINGLE CHIP RDS DEMODULATOR FILTER Nov-1999
	TDA7331	56Kb / 7P	SINGLE CHIP RDS DEMODULATOR FILTER Feb-1998
	TDA7479	55Kb / 7P	SINGLE CHIP RDS DEMODULATOR FILTER Feb-1998
Sanyo Semicon Device	STK311-110	149Kb / 5P	RDS Demodulator
Sanyo Semicon Device	STK311-120	97Kb / 6P	RDS Demodulator
STMicroelectronics	TDA7730B	1Mb / 9P	SINGLE CHIP RDS DEMODULATOR FILTER Nov-1999
	TDA7479	176Kb / 8P	SINGLE CHIP RDS DEMODULATOR FILTER Dec-2004
	TDA7478	151Kb / 11P	Single chip RDS demodulator 30-Jun-2011
	TDA7479	151Kb / 12P	Single chip RDS demodulator filter 04-Nov-2008
	TDA7479DTR	151Kb / 12P	Single chip RDS demodulator filter 04-Nov-2008

More results

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