TUA4306 Datasheet, PDF (13/33 Pages) Siemens Semiconductor Group – ICs for Communications

SNC HCC V_{ref H/S AF out}
AM/FM
to µC open C.
Count Div.Count
toµC
toµC
1. LO
RF
RF
AM
FM
50 49 48 47 46 45 ^{44 43 42 41 40 39 38} 37 ³⁶ 35 ^{34 33 32}
Pilot ind. ₅₁
31
to µC
52
30
+V_S
456k
+V_S
53
STEREODECODER
54
55
NOISE BLANKER
56
57
58
59
60
61
FM-IF
AMPLIFIER
62
63
64
AM-AGC
AMPLIFIER
1. MIXER
PRESTAGE
AGC
FM IF
AMP
IF CONVERTER
2. LO OSC
29
28
Sel B
27
Sel A
26
+V_S
25
10.7M
24
23
22
IF Amp gain
21
FM
Prestage AGC
20
AM
19
AM/FM fieldstr.
1
2 3 4 5 6 7 8 9 10 11 12 13 14
15 ^{16 17 18}
MPD
out
AGC
time
to µC
AM
count
to µC
450k
10.7M
+V_S
10.25 M
in
10.7M