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- 5 -
DB125
DB125
EXPLANATION OF IC
TC9324F-006
052-1932-00
Master Micro computer
1
COM1
O
COMMON signal 1 output for LCD
2
COM2
O
COMMON signal 2 output for LCD
3
COM3
O
COMMON signal 3 output for LCD
4
COM4
O
COMMON signal 4 output for LCD
5
S1
O
S1 output for LCD
6
S2
O
S2 output for LCD
7
S3
O
S3 output for LCD
8
S4
O
S4 output for LCD
9
S5
O
S5 output for LCD
10
S6
O
S6 output for LCD
11
S7
O
S7 output for LCD
12
S8
O
S8 output for LCD
13
S9
O
NC
14
S10
O
S10 output for LCD
15
S11
O
S11 output for LCD
16
S12
O
NC
17
S13
O
S13 output for LCD
18
S14
O
S14 output for LCD
19
S15
O
NC
20
S16
O
S16 output for LCD
21
S17
O
S17 output for LCD
22
S18
O
S18 output for LCD
23
S19
O
S19 output for LCD
24
S20
O
S20 output for LCD
25
S21
O
NC
26
S22
O
S22 output for LCD
27
S23
O
S23 output for LCD
28
S24
O
NC
29
S25
O
S25 output for LCD
30
S26
O
S26 output for LCD
31
S27
O
S27 output for LCD
32
S28
O
S28 output for LCD
33
S29
O
S29 output for LCD
34
S30
O
S30 output for LCD
35
CD-RESET
O
CD MECH connect to RESET
36
CD5V ON
O
CD5V ON signal output pin (Active
High)
37
LD-CONT
O
Laser Diode Control pin
38
LD-MUTE
O
Mechanical photo sensor input terminal.
Terminal to detect the disc. Position in
loading status, chucking status and
other machine status. With disc, ‘H’ is
input, without disc ‘L’ is input.
39
VDD1
-
VDD
40
RESET
I
Reset Port
41
GND1
-
GND
42
AM-ON
O
While ‘HI’=AM and ‘LO’=FM
(Active High)
43
FM-ON
O
While ‘LO’=AM and ‘HI’=FM
(Active High)
44
ST/SD
I
While AM/FM SD in, SD is ‘LO’
(Active High)
45
STBY
O
Power Amplifier IC control terminal
46
VREF
-
VDD
47
ANT-CONT
O
Antenna Control output pin. ‘HI’ is
ON, ‘LO’ is OFF
48
CTRL1
O
Power Supply IC control terminal
(Active High)
49
CRTL 2
O
NC
50
RF-MUTE
O
RF Mute is signal output pin
(Active High)
51
A1
O
Test mode for CD
52
A2
O
Digital output pin for CD MECH
53
AD1
I
Key switch detection terminal for
A/D converter
54
AD2
I
Key switch detection terminal for
A/D converter
55
GND2
-
GND
56
VDD2
-
VDD
57
TR-A
I
Mechanical photo sensor input terminal.
Terminal to detect the disc. Position in
loading status, chucking status and
other machine status. With disc, ‘H’ is
input, without disc ‘L’ is input.
58
E-VOL CE
O
E-VOL use
59
E-VOL DO
O
E-VOL use
60
E-VOL CLK
O
E-VOL use
61
AREA A
I
Area setting input.Ref. Table 1
62
AREA B
I
Area setting input.Ref. Table 1
63
CW
I
Use for rotary volume
64
CCW
I
Use for rotary volume
65
MUTE
O
Output mute.While it is ‘LO’,mute i
s ‘ON’
66
TEST
I
NC
67
HOLD
I
HOLD=ACC detect terminal
68
SBSY
I
Connected to CD MECH
69
B/U DET
I
B/U detecting terminal
70
AM-IF IN
I
AM IF INPUT
71
FM-IF IN
I
FM IF INPUT
72
GND3
-
GND
73
FM-OSC
I
FM VCO input terminal
74
AM-OSC
I
AM VCO input terminal
75
VPLL
O
NC
76
VDD3
-
VDD
77
DO1
O
PLL detector output 1
78
DO2
O
PLL detector output 2
79
TEST2
I
NC
80
TR-B
I
Mechanical photo sensor input terminal.
Terminal to detect the disc. Position in
loading status, chucking status and
other machine status. With disc, ‘H’ is
input, without disc ‘L’ is input.
81
CHU SW
I
Mechanical photo sensor input terminal.
Terminal to detect the disc. Position in
loading status, chucking status and
other machine status. With disc, ‘L’ is
input, without disc ‘H’ is input.
82
S-STOP
I
Mechanical photo sensor input terminal.
Terminal to detect the disc. Position in
loading status, chucking status and
other machine status. With disc, ‘H’ is
input, without disc ‘L’ is input.
83
Z-MUTE
O
Zero Mute for CD MECH
(Active High)
84
BUCK
O
CD MECH data bus clock
85
CCE
O
CD MECH chip enable
Pin No Symbol
I/O Function
Pin No Symbol
I/O Function
Pin No Symbol
I/O Function
Pin No Symbol
I/O Function
US
L
L
K
H
L
J
L
H
AREA AREA A (Pin 61) AREA B (Pin 62)
Table 1. Area Setting Table
86
BUS0
I/O CD MECH data bus
87
BUS1
I/O CD MECH data bus
88
BUS2
I/O CD MECH data bus
89
BUS3
I/O CD MECH data bus
90
B/U DET
I
B/U detecting terminal
91
CD-EJ
I
CD EJECT (Active Low)
92
VCPU
-
10uF to GND
93
GND4
-
GND
94
X-OUT2
-
NC
95
X-IN2
-
GND
96
VDD4
-
VDD
97
X-OUT1
-
X-TAL 4.5MHz
98
X-IN1
-
X-TAL 4.5MHz
99
GND5
-
GND
100
VEE
-
NC
Outward Form
100 pins, plastic QFP
Terminal Description
