TDA1596 datasheet(7/20 Pages) PHILIPS

Nome de Peças	TDA1596

Descrição Electrónicos	IF amplifier/demodulator for FM radio receivers

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Fabricante Electrônico	PHILIPS [NXP Semiconductors]

Página de início	http://www.nxp.com

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7 / 20 page

April 1991

7

Philips Semiconductors

Product speciﬁcation

IF ampliﬁer/demodulator for

FM radio receivers

TDA1596

CHARACTERISTICS

f = 10.7 MHz; VP = V1-15 = 8.5 V; VI = V18(rms) = 1 mV; Tamb = 25 °C; measured in the circuit of Fig.3; tuned circuit at

pins 9, 10 aligned for symmetrical stop pulses; all voltages are referred to ground (pin 15); unless otherwise speciﬁed

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supplies

Supply voltage

VP = V1

7.5

8.5

12.0

V

Supply current at I2 = I7 = 0 mA

I1

−

20

26

mA

FM demodulator

Input impedance

R9-10

25

40

55

k

Ω

C9-10

−

6

−

pF

DC output voltage (no-signal

condition) at

V9, 10(p-p) ≤ 100 µV;

V18(rms) ≤ 5 µVV4

2.75

3.10

3.45

V

Output impedance

R4-15

−

400

−Ω

Mute attenuator control voltage

Control voltage (pin 14)

at V18(rms) ≤ 5 µVV14

−

2.0

−

V

at V18(rms) = 1 mV

V14

−

3.45

−

V

Output impedance (pin 14)

R14-15

−−

2.0

M

Ω

Level shift input (pin 2)

internal bias voltage at I2 = 0 mA

V2

−

1.4

−

V

input impedance

R2-15

15

−−

k

Ω

Internal muting (Fig.4)

Internal attenuation of signals

± 22.5 kHz ≤ detuning ≤ ± 80 kHz

A = 20log[

∆V

4(FM mute-off)/∆V4(FM)]

at V14 ≥ 1 V5

A

−

0

−

dB

at V14 = 0.77 V5

A

1.5

3.0

4.5

dB

at V14 = 0.55 V5

A

−

20

−

dB

Attack and decay (pin 14)

Pin 11 connected to ground *

charge current

+ I

14

−

8

−µA

discharge current

−I

14

−

120

−µA

Pin 11 connected to Vref

charge current

+ I

14

−

100

−µA

discharge current

−I

14

−

120

−µA

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