Справочник Пользователя для Philips TDA1576T

1998 Nov 18

4

Philips Semiconductors

Product specification

FM/IF amplifier/demodulator circuit

TDA1576T

V

P

1

positive supply voltage

C

PS

2

smoothing capacitor of power supply

IF1

3

IF signal to resonant circuit

RES1

4

resonant circuit input 1

FMON

5

FM-ON, standby switch

RES2

6

resonant circuit input 2

IF2

7

IF signal to resonant circuit

V

oAF1

8

AF output voltage 1 (0

°

 phase)

V

oAF2

9

AF output voltage 2 (180

°

 phase)

n.c.

10

not connected

n.c.

11

not connected

V

i(det)

12

detune detector input voltage for
external audio reference

V

o(det)

13

detune detector output voltage

V

ref

14

reference voltage output

V

F

15

level output for field strength

V

F0

16

zero adjust voltage for field strength

V

iIF

17

FM/IF input signal voltage

V

FB2

18

DC feedback 2

V

FB1

19

DC feedback 1

GND

20

ground (0 V)

Fig.2  Pin configuration.

handbook, halfpage

MEH140

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VP

CPS

IF1

RES1

FMON

RES2

IF2

n.c.

n.c.

Vi(det)

Vo(det)

Vref

VF

VFB2

VFB1

GND

VF0

ViIF

VoAF1

VoAF2