TDA1597T datasheet(6/24 Pages) PHILIPS

Il numero della parte	TDA1597T

Spiegazioni elettronici	IF amplifier/demodulator for FM radio receivers

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Produttore elettronici	PHILIPS [NXP Semiconductors]

Homepage	http://www.nxp.com

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6 / 24 page

1997 Feb 27

6

Philips Semiconductors

Product speciﬁcation

IF ampliﬁer/demodulator for FM radio receivers

TDA1597

THERMAL CHARACTERISTICS

CHARACTERISTICS

VP = 8.5 V; Tamb =25 °C; FM-MUTE-ON (I7 = 0); fIF = 10.7 MHz; deviation ±22.5 kHz with fm = 400 Hz;

Vi = 10 mV (RMS) at pin 20; de-emphasis of 50 µs; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;

measurements taken in Fig.4; unless otherwise speciﬁed.

SYMBOL

PARAMETER

VALUE

UNIT

Rth j-a

thermal resistance from junction to ambient in free air

SOT102-1

80

K/W

SOT163-1

90

K/W

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VP

supply voltage

7.5

8.5

12

V

IP

supply current

I2 =I7 =0

−

20

26

mA

Mode switch input

I7

input current

FM-MUTE-ON

−

0

−

mA

V7

input voltage

FM-MUTE-ON

2.4

2.8

3.2

V

FM-MUTE-OFF

0.9Vref

−−

V

FM-OFF;

AF attenuation >60 dB

−−

1.4

V

IF ampliﬁer and demodulator

Zi

demodulator input impedance

between pins 10 and 11

25

40

55

k

Ω

Ci

demodulator input capacitance

between pins 10 and 11

−

6

−

pF

AF output (pin 4)

Ro

output resistance

−

400

−Ω

V4

DC output voltage level

ViIF ≤ 5 µV (RMS) on pin 20

2.75

3.1

3.45

V

PSRR

power supply ripple rejection

(pin 4)

f = 1000 Hz;

Vripple = 50 mV (RMS)

33

36

−

dB

Tuning stop detector

∆fSTOP-0

detuning frequency for STOP-0

(pin 15)

V15 ≥ 3.5 V; see Fig.11

−−

26

kHz

V15 ≤ 0.3 V; see Fig.11

38

−−

kHz

∆fSTOP-1

detuning frequency for STOP-1

(pin 14)

V14 ≥ 3.5 V; see Fig.10

−−−26

kHz

V14 ≤ 0.3 V; see Fig.10

−38

−−

kHz

V20(rms)

dependence on input voltage for

STOP-0 and STOP-1

(RMS value)

V14, 15 ≥ 3.5 V; see Fig.9

250

−−

µV

V14, 15 ≤ 0.3 V; see Fig.9

−−

50

µV

V14, 15

output voltage

I14, 15 =1mA

−−

0.3

V

Reference voltage source (pin 5)

Vref

reference output voltage

I5 = −1 mA

3.3

3.7

4.1

V

R5

output resistance

I5 = −1mA

−

40

80

Ω

TC

temperature coefﬁcient

−

3.3

−

mV/VK

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