1997 Feb 27
14
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.12 External mute voltage V
16(14)
dependent on input signal V
iIF
(pin 20); typical adjusting range.
(1) V
2
= 0 V.
(2) I
2
= 0 mA.
(3) V
2
= V
ref
.
handbook, full pagewidth
10
V16(14)
(V)
0
2
4
6
8
MEH076
10
−
6
10
−
5
10
−
4
10
−
3
10
−
2
10
−
1
1
(1)
(2)
(3)
Vi20 (rms) (V)
Fig.13 Mute voltage V
16(14)
dependent on detuning; V
iIF
= 10 mV (RMS).
handbook, full pagewidth
detune (kHz)
10
0
−
400
−
300
V16(14)
(V)
−
200
−
100
100
0
200
300
400
2
4
6
8
MEH079
