E-TDA7421N Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
E-TDA7421N Datasheet PDF : 47 Pages
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Electrical specifications
TDA7421N
Figure 3. AM test circuit
VMiXOUT
VCC
330
T2
VMiX2AMIN
VCC
T3
12
2K
64 63 61
60 58
57 56
55
1
VMIX1AMIN
2
15pF
VXTAL
11
1M
AGC
W&N
54
AMSMETER
35
34
2K
+-
12
15pF
AGC2
DET
33
40
VAMSD
41
VAMSMETER
31
32
2
1
D98AU910
VIF2AMPIN
VIF2AMPOUT
Figure 4. FM test circuit
VTun
T2
VCC
330
VMIXOUT
VFMIFAGCIN
10nF 10nF
VFMAMP1OUT
10nF
10nF
330
10nF
VFMAMP2OUT
10nF
330
10nF
T1
VMiXFMIN
50
3
61
4
VTun
5K
330K
VCC
V1
8
22pF
15pF
L2
9
60
59
53 52
51
330
330
-
+
50 49
48
330
330
-
+
46
330
45
10nF
10nF
VFMLIMIN
68pF
5
VFMRFAGCIN
10nF
6
VFMAGCOUT
10nF
FM AGC
AUDIO
38
DEMOD
L6
37
14
15
16
40
41
39
42
31
VAMTADJ VRFADJ VPLLOUT VFMSD
VSMSHIFT VAUDIO
100K
VMUTEDRIVE
10nF
VSMFLT
D00AU1196
20/47
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