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RX-G7ORBK
M 1A1836M (1C102) : FM AM IF AMP & detector
1. Terminal
Layout
EM IN
OSC BUFFER
AM MIX
AM OSC
FM IF
AFC
REG
AM RF
AMIE
AM AGC
GND
AM DET
SIG
DET OUT
ST/AM IF
vco
FM DET
MPXIN
vec
MPX OUT
FM/AM IF
MPX OUT
RIN
LIN
ROUT
L OUT
V-SM
AM GF.
FM/AM
MONO/ST
2. Block Diagram
th METER
==
_ |
LEVEL
i
DET
EF
BUFF
FM IF
FM
in
REG
2-6 (No. 20489)
3. Pin Function
P
No.
FMIN | 1 | This & an input terminal of FMIF Signal, SSS
AM MIX [0 [This is an output terminal for AM mixer.
=i
Register value between pin4 and pin28 desides the
frequency width of the input signal.
Stereo indicator output. Stereo: "L", Mono: "H"
When the signal of IF REQ of IC121(LC7218) appear, the
signal of FM/AM IF output.
S Meter output and adjust AM SD sensitivity.
This is a terminal of AM ceramic filter.
FM/AM
Change over the FM/AM input. "H":FM,
"L" :AM
MONO/ST
Stereo: "H", Mono: "L"
a
aN
=
ro
ro,
=
e
GO
i
is
ro
[OUT [0] Left channel signal output.
SSS
ro,
os
rH
Gg
ro
BE
a
ro
=
a
ar
=
=
ro
FM IF
R
S
AMIF
GND
ST/AM IF
FM DET
Cc
E
|
ie
1
FM/AM IF
G
VSM
AM CF.
ROUT
Mpx input terminal.
Voltage controlled oscillator terminal.
AM/FM detection output.
AM low cut adjustment.
This is an AGC voltage input terminal for AM.
This is an input terminal for AM RF signal.
This is an output terminal of voltage for FM-AFC.
This is a terminal of AM Local oscillation circuit.
AM Local oscillation Signal output.
LIN
PX L OUT
i
PX ROUT
G
PX IN
vco
DET OUT
AM DET
AM AG
AM RF
AFC
AM OSC
OSC BUFFER
(a)
NPTNRENTNE
NENT
NET
NINE
N
=}
=]
=]
=]
=] a
ary a')
DECODER
ANTI BIRDIE
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