TDA1597T datasheet(2/24 Pages) PHILIPS

номер детали	TDA1597T

подробное описание детали	IF amplifier/demodulator for FM radio receivers

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производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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1997 Feb 27

2

Philips Semiconductors

Product speciﬁcation

IF ampliﬁer/demodulator for FM radio receivers

TDA1597

FEATURES

• Balanced limiting amplifier

• Balanced coincidence demodulator

• Two open-collector stop pulse outputs for

microcomputer tuning control

• Simulated behaviour of ratio detector (internal field

strength and detuning dependent voltage for dynamic

AF signal muting)

• Mono/stereo blend field strength indication control

voltage

• AFC output

• 3-state mode switch for FM-MUTE-ON, FM-MUTE-OFF

and FM-OFF

• Internal compensation of AF signal Total Harmonic

Distortion (THD)

• Built-in hum and ripple rejection circuits.

GENERAL DESCRIPTION

The TDA1597 provides IF amplification, symmetrical

quadrature demodulation and level detection for quality

home and car FM radio receivers and is suitable for mono

and stereo reception. It may also be applied to common

front-ends, stereo decoders and AM receivers circuits.

All pin numbers mentioned in this data sheet refer to the

SO version (TDA1597T) unless otherwise specified.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VP

supply voltage

7.5

8.5

12

V

IP

supply current (l2 =I7 =0)

−

20

26

mA

ViIF(rms)

IF input sensitivity for limiting on pin 20

(RMS value)

14

22

35

µV

VoAF(rms)

AF output signal on pin 4 (RMS value)

180

200

220

mV

S/N

signal-to-noise ratio

fm = 400 Hz;

∆f= ±75 kHz

−

82

−

dB

THD

total harmonic distortion

fm = 1 kHz;

∆f= ±75 kHz

−

0.1

0.3

%

K2 adjustment and

FM-MUTE-OFF

−

0.07

0.25

%

Tamb

operating ambient temperature

−40

−

+85

°C

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA1597

DIP18

plastic dual in-line package; 18 leads (300 mil)

SOT102-1

TDA1597T

SO20

plastic small outline package; 20 leads; body width 7.5 mm

SOT163-1

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