Sanyo DC-MP7500(BK)/(XE) - IC222 TC9257 F (Tuner PLL IC); IC440 AN7348 K (Play; REC Preamprifier)

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IC BLOCK DIAGRAM & DESCRIPTION
2 MODULUS
PRESCALER
4bit SWALLOW
COUNTER
POWER ON
RESET
TRI-STATE
BUFFER
TRI-STATE
BUFFER
OUTPUT PORT
ADDRESS
DECODER
OSC
CIRCUIT
PHASE
COMPARATOR
12bit PROGRAMMABLE COUNTER
20bit BINARY COUNTER
UNIVERSAL COUNTER CONTROL
REFERENCE COUNTER
24bit REGISTER
24bit SHIFT REGISTER
24bit REGISTER
MAX
1/ 2
UNLOCK
I/O PORT
XT
20
DO2
1
XT
19
DO1
2
PERIOD
18
I/O-7/
SCIN
3
CLOCK
17
I/O-8/
IFIN1
4
DATA
16
I/O-9/
IFIN2
5
OT-1
15
GND
6
OT-2
14
FM
IN
7
OT-3
13
AM
IN
8
12
9
11
10
OT-4 V
DD
I/O-5/
CLK
I/O-6
TEST
GATE
AMP
AMP
AMP
OT-4
OT-4
OT-1 OT-3
OT-2 OT-4
RESET
PSC
MODE LFFM
HFFM
H
FM L
XT
1ms
1ms
OSC
4
8
24 22
10
5
5
4
4
15
12
4
DO1
I / O-5 / CLK
I / O-6
I / O-7 / SC
IN
DO2
(DO2 / OT-4)
I / O-9 / IF
IN2
(I / O-6 / IF IN2 )
I / O-8 / IF
IN1
(I / O-5 / IF IN1 )
GNDV
DD
FM IN
AM IN
XT
XT
DATA
CLOCK
PERIOD
(Note) Mark terminals are not existence in TC9256P, TC9256F.
Terminal name of TC9256P, TC9256F is shown in parentheses.
Others are common terminals.
IC222 TC9257F (Tuner PLL IC)
IC440 AN7348K (Play / REC Preamprifier)
Nor/Cro
& Hi/Lo
Logic
R
R
P
R
P
P
ALC
Mute
Mute
Logic
A/B
Logic
Rec/PB
Ripple
Rejection
Rec
Amp(L)
Rec
Amp(R)
PB Amp(L)
PB Amp(R)
A/Rec
A/Rec
B
B
1
2
3
4
5
7
6
8
9
10 1211
1314
15
16
17
1819
20
21222324
L-PB AMP
R-PB AMP
R-PB NF
R-PB EO
R-PB OUT
AB SW
R-REC OUT
R-REC IN
REC/PB SW
A/B SW
FILTER
GND
VCC
CRO/NOR
HI/LO
ALC
L-REC OUT L-REC IN
ALC
L-PB AMP OUT
L-PB EO L-PB NF R-PB AMP
L-PB AMP