Sanyo DC-MCR30 - Page 10

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IC BLOCK DIAGRAM & DESCRIPTION
IC101 TA8132(AM/FM IF+MPX)
IC203 BU1923(RDS/RBDS Decoder)
IC201 TMP87EP26(Micom)
16-bit
Tiner/Counter
Time Base
Timer
Watchdog
Timer
TC1
System Controller
Standby Controller
Timing Generator
High frequ.
Low frequ.
Clock
Generator
TC2
Interrupt Controller
8-bit
Tiner/Counter
Oata Memory
(RAM)
Data Memory
(EEPROM)
Program
Counter
8bit
AD converter
P5 P0 P4
I/O ports
VAREF
I/O ports (Segment output)
Segment outputCommon output
P3 P4 PD
P2
Program Memory
TC3 TC5
Serial
Interfaces
SIO1 SIO2
Register banks
Stack Pointer
Flags RBS
PSW
LOD Driver
ALU
VDD
VSS
VLC
RESET
BOOT
TEST
XIN
XOUT
MROM
BOOT
Inst. Register
Inst. Decoder
EEPROM
P9P6
P93/SEG12
to
P90/SEG15
COM3
to
COM0
P22
to
P20
P57 to P50
(AIN7) to (AIN0)
P07
to
P00
P17
to
P10 P36
to
P30 P47
to
P40
PD2
to
PD0
SEG11
to
SEG0
P87/SEG32
to
P80/SEG39 P77/SEG24
to
P70/SEG31 P67/SEG16
to
P60/SEG23
P7 P8
IC301 TC9257F(TUNER PLL)
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 DO21
XT 19 DO12
PERIOD 18 I/O-7/SC
IN 3
CLOCK 17 I/O-8/IF
IN1 4
DATA 16 I/O-9/IF
IN2 5
OT-1 15 GND6
OT-2 14 FM
IN 7
OT-3 13 AM
IN 8
129
1110
OT-4 V
DD
I/O-5/CLK I/O-6
TC9257P, TC9257F
Top View
DIP-20PIN / SOP-20PIN
XT 16 DO2/OT-41
XT 15 DO12
PERIOD 14 I/O-5/IF
IN1 3
CLOCK 13 I/O-6/IF
IN2 4
DATA 12 GND5
OT-1 116
OT-2 10 AM
IN 7
OT-3 9 V
DD
FM IN
8
TC9256P, TC9256F
Top View
DIP-16PIN / SOP-16PIN
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.
IC402 TC9422F(Volume Control)
GND
2
1
V DD
28
3
4
5
6
7
8
9
10
11
12
13 14 15 16
27
26
25
24
23
22
21
20
19
18
17
Vref CK DATA STB
32BIT SR
50k
500
750
50k
100k
MAIN VR
50k / 64STEP
13k
13k
1k
BASS VR
50k /
16STEP
TREBLE VR
50k /
16STEP
50k
CAPACITOR FOR
OSCILLATION
GAIN CONTROL
0, 6, 12, 18dB
INPUT
SELECTOR
500
750
50k
100k
MAIN VR
50k / 64STEP
13k
13k
1k
BASS VR
50k /
16STEP
TREBLE VR
50k /
16STEP
CAPACITOR FOR
OSCILLATION
GAIN CONTROL
0, 6, 12, 18dB
INPUT
SELECTOR
L-IN1
L-IN2
L-IN3
L-IN4
L-SW-OUT
L-VR-IN
L-B1
L-B2
L-B3
L-Tone-OUT
L-T1
R-IN1
R-IN2
R-IN3
R-IN4
R-SW-OUT
R-VR-IN
R-B1
R-B2
R-B3
R-Tone-OUT
R-T1