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MAIN SECTION
RAL201 TUNER UNIT (RAN0004MM-1)
FM ANT
+B(FM)
RF AMP
FM MIXER
LOCAL OSC
+B(FM)
AOUT
17
AIN
16
PD
11
IFIN
LC72131M
PLL FREQUENCY
SYNTHESIZER
15
V
DD
+B3
+B(FM)
19
Vss
POWER
+B5
SUPPLY
(FM:ON)
IFT
+B(FM)
FM IF
+B(FM)
AMP
BUFFER
AMP
3
22
23
REG
ALC
AM
AM
OSC
24
OUT
OSC
MIX
BUFF.
LEVEL
DET.
AM/FM
IF
FM IF
S-
BUFF.
IN
1
CURVE
FM IF
TUNING
FM
DRIVE
DET.
Vcc
9
8
2
+B3
AM
IFT
18
PHASE DETECTOR
REFERENCE
CHARGE PUMP
DIVIDER
SWALLOW COUNTER
1/6,1/17 4bit
12 BIT
PROGRAMMABLE
DIVIDER
UNIVERSAL
COUNTER
DATA SHIFT REGISTER
LATCH
POWER
ON
RESET
10
12
7
8
9
AM ANT
AM
ANT
COIL
21
20
19
18
17
AM
RF
AGC
AMP
AM
AM
IF
DET.
COMP.
GND
5
4
6
10
7.2MHz
1
XIN
20
XOUT
FM IN
14
1/2
AM IN
13
2
CE
3
DI
4
CL
5
D0
6
B01
AM
OSC
+B3
COIL
LA1833MN
FM / AM I F AMP,
DET / AM OSC,
MIX / FM MPX
16
15
13
14
DECODER
PHASE
STEREO
PILOT
DET.
SW
CANCEL
PILOT
VCO
FF
FF
FF
DET.
11
12
7
+B3
Rch
SD
PLLCE
PLLDT
SER4
DO
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