TDA1572 datasheet(7/19 Pages) PHILIPS

Nome de Peças	TDA1572

Descrição Electrónicos	AM receiver circuit

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Fabricante Electrônico	PHILIPS [NXP Semiconductors]

Página de início	http://www.nxp.com

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7 / 19 page

December 1987

7

Philips Semiconductors

Product speciﬁcation

AM receiver circuit

TDA1572

Buffered oscillator output (pin 12)

DC output voltage

VO

−

0,8

−

V

Output signal amplitude

(peak-to-peak value)

Vo(p-p)

−

320

−

mV

Output impedance

ZO

−

170

−Ω

Output current

−I

O(peak)

−−

3mA

IF, AGC and AF stages

DC input voltage (pins 3 and 4)

VI

−

2,0

−

V

IF input impedance (pins 3 to 4)

Zi

2,4

3,0

3,9

k

Ω

IF input capacitance

Ci

−

7

−

pF

IF input voltage for

THD = 3% at m = 80% (pins 3 and 4)

Vi

−

90

−

mV

IF output impedance (pin 10)

Zo

−

50

−Ω

Unloaded IF output voltage

at Vi = 10 mV (pin 10)

Vo

180

230

290

mV

Voltage gain before start of AGC

(pins 3 to 4; 6 to 18)

Gv

−

68

−

dB

AGC range of IF stages: change of

V3-4 for 1 dB change of Vo(AF);

V3-4 (ref) = 75 mV

∆Vv

−

55

−

dB

AF output voltage at V3-4(IF) = 50 µVVo(AF)

−

130

−

mV

AF output voltage at V3-4(IF) = 1 mV

Vo(AF)

−

310

−

mV

AF output impedance (pin 6)

Zo

2,8

3,5

4,2

k

Ω

Indicator driver (pin 11)

Output voltage at Vi = 0 mV;

RL = 2,7 kΩ

Vo

−−

140

mV

Output voltage at Vi = 500 mV;

RL = 2,7 kΩ

Vo

2,5

2,8

3,1

V

Load resistance

RL

1,5

−−

k

Ω

Standby switch

Switching threshold at;

VP = 7,5 to 18 V

Tamb = −40 to +80 °C

ON-voltage

V2-1

0

−

2,0

V

OFF-voltage

V2-1

3,5

−

20,0

V

ON-current at V2-1 = 0 V

−I2

−

100

200

µA

OFF-current at V2-1 = 20 V

I2−

−

10

µA

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Nº de peça semelhante - TDA1572

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