Preliminary
S1A0903X01
AM/FM TUNER + MPX + PLL
Pin No.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Symbol
VCCCAP
FMOSC
VDDA
In/out
Function
-
I
VCC ripple rejection cap.
FM oscillator input
Power
-
AMOSC
VCC_RF
FMRFOUT
AMRFIN
FMRFIN
GND_RF
AMLOWCUT
MIXOUT
AGCCAP
AMIFIN
FMIFIN
VCC
I
AM oscillator input
Power
-
O
I
FM RF output
AM RF input
FM RF input
Ground
I
-
-
AM low cut cap.
AM/FM MIX output
AGC cap.
O
-
I
AM IF input
I
FM IF input
-
Power
DETOUT
GND
O
-
AM/FM detector output
Ground
MPXIN
-
MPX input
LPF1
-
Connection for the phase detector LPF
LPF2
-
Connection for the VCO LPF
LPF3
-
Connection for the pilot detector and the phase detector LPF
Connection for FM QUAD detector resonator
FMQUND
-
4
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