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Philips Semiconductors
IF amplifier/demodulator for FM radio receivers
0
V 4
(dB)
20
40
60
80
100
6
10
(1) Audio signal.
(2) Spurious AM signal.
Fig.7
FM-MUTE-ON: Typical AM suppression as a function of the input signal V
f
= 1 kHz; AM with f
m
20
handbook, full pagewidth
V 4
(dB)
0
20
40
60
80
6
10
(1) Audio signal.
(2) Spurious AM signal.
Fig.8
FM-MUTE-OFF: Typical AM suppression as a function of the input signal V
f
= 1 kHz; AM with f
m
1997 Feb 27
(1)
(2)
5
4
10
10
= 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth.
m
(1)
(2)
5
4
10
10
= 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth.
m
3
2
10
10
3
2
10
10
12
Product specification
TDA1597
MBE520
1
10
V i20 (rms) (V)
(pin 20) with f = 22.5 kHz;
iIF
MEH073
1
10
V i20 (rms) (V)
(pin 20) with f = 22.5 kHz;
iIF
1
1
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