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7
74 CDC REM
OUT(NC)
Not connected
-
-
-
-
75 HUB-TX(NC)
Not connected
-
-
-
-
76 HUB-RX
Reception data from Hub
I
0
0
0
77 USB RXD
Serial data to USB
O
0
0
0
78 USB TXD(NC) Not connected
-
-
-
-
79 FM MODE
Power supply control for
FM mode
FM mode
-
-
-
-
80 AM MODE
Power supply control for
AM mode
AM mode
O
0
4.9
0
81 MONO(NC)
Not connected
-
-
-
-
82 ST
FM stereo indication
I
5.1
5.1
5.1
83 DI/DO(NC)
Not connected
-
-
-
-
84 CS(NC)
Not connected
-
-
-
-
85 SK(NC)
Not connected
-
-
-
-
86 NC
Not connected
-
-
-
-
87 VREG
Connected to capacitor
-
3.0
3.0
3.0
88 VSS
Ground
-
0
0
0
89 VDD (PLL)
+5V power supply
-
5.0
5.0
5.0
90 OSC FM/AM
FM/AM local oscillation
frequency
frequency
I
1.4
1.4
1.4
91 NC
Ground
-
0
0
0
92 FM/AM IFC
FM/AM center frequency
I
0
0
0
93 NC
Ground
-
0
0
0
94 EO
FM/AM phase detection
error
error
O
2.2
2.2
2.2
95 SUBPD(NC)
Not connected
-
-
-
-
96 SSC
SD sensitivity control
O
0
0
0
97 ANT CNT
Not connected
-
4.9
4.9
4.9
98 AMP CNT
Power supply control for
External amplifier
External amplifier
O
4.9
4.9
4.9
99 AF MUTE
Audio signal mute
O
0
0
0
100 AMP MUTE
Mute for Power amplifier
O
4.9
4.9
4.9
Pin
No
Port
Description
I/O
Vol [V]
FM
AM
CD
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