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Fm/if amplifier/demodulator circuit tda1576t, Fig.5 detuning input impedance, Fig.6 detuning curve – Philips TDA1576T User Manual

Page 10: Fig.7 detuning output, Fig.8 internal audio attenuation

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1998 Nov 18

10

Philips Semiconductors

Product specification

FM/IF amplifier/demodulator circuit

TDA1576T

Fig.5 Detuning input impedance.

handbook, halfpage

MEH144

I12

I12

Ri

V9, 12

Fig.6 Detuning curve.

handbook, halfpage

−

1.2

−

0.8

−

0.4

0

0.4

0.8

V13/V14

1.2

V9, 12 (V)

1

MEH145

0.5

0

Fig.7 Detuning output.

handbook, halfpage

0

2

4

I13

(mA)

6

V13 (V)

1

0

MEH146

0.5

|V9, 12|

1.2

1

0.5

0

Fig.8 Internal audio attenuation.

handbook, halfpage

0

0.1

0.2

α

Vo

(dB)

0.3

V13 /V14

0

MEH147

−

20

−

40

−

60

−

80

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