TDA7479D Datasheet

IC型號(hào)：
TDA7479D
PDF描述：
SINGLE CHIP RDS DEMODULATOR FILTER
文件大?。?/label>
58.02KB
PDF頁數(shù)：
7頁
芯片廠家：
STMICROELECTRONICS

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TDA7479

SINGLE CHIP RDS DEMODULATOR + FILTER

VERY HIGH RDS DEMODULATION QUALITY

WITH IMPROVED DIGITAL SIGNAL PROC-

ESSING

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

(8.664 and 17.328MHz 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 accord-

ance with the EBU (European Broadcasting Un-

ion) specifications.

BLOCK DIAGRAM AND TEST CIRCUIT

DIP16

SO16

ORDERING NUMBERS:

TDA7479

TDA7479D

The device is made up of two sections: a cas-

caded antialiasing + switched capacitors band-

pass filter for precise RDS band selection and a

demodulating section that performs the extraction

od RDS data stream (RDDA) and clock (RDCL),

to be furher processed by a suitable RDS de-

coder.

Outputs for RDS signal quality and ARI indication

are also present.

C1 27pF

4.332MHz

C2 47pF

T57

270pF

2nd ORDER

ANTIALIASING

FILTER

OSCIN

OSCOUT

MPX

OSCILLATOR &

DIVIDER

OSEL

FSEL

FILOUT

8th ORDER

SC-BANDPASS

FILTER

57KHz PLL

1187.5Hz

PLL

100nF

VREF

10碌F

INTEGRAL

BIPHASE DEC.

POLARITY

BIPHASE DEC.

TEST LOGIC

FAST ARI

INDICATOR

QUAL DET.

RDCL

ARI

QUAL

MUX

DIFF. DECODER

RDDA

GND

EXTRES

D97AU751A

February 1998

1/7

標(biāo)準(zhǔn)包裝
50
類別
RF/IF 和 RFID
家庭
RF 解調(diào)器
系列
-
功能
解調(diào)器，濾波器
LO 頻率
-
RF 頻率
-
P1dB
-
增益
-
噪音數(shù)據(jù)
-
電流 - 電源
11mA
電源電壓
4.5 V ~ 5.5 V
封裝/外殼
16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝
16-SO
包裝
管件

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TDA7479D Datasheet

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