HCD-EC69i/EC79i/EC99i
42
• IC Pin Function Description
CD BOARD IC101 TC94A70FG-006 (CD-MP3 PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
AVSS3
-
Ground terminal
2
RFZi
I
RF ripple zero crossing signal input terminal
3
RFRP
O
RF ripple signal output terminal
4
SBAD/RFDC
O
Sub beam addition signal or RF peak detection signal output terminal Not used
5
FEi
O
Focus error signal output terminal Not used
6
TEi
O
Tracking error signal output terminal
7
TEZi
I
Tracking error zero crossing signal input terminal
8
AVDD3
-
Power supply terminal (+3.3V)
9
FOo
O
Focus coil drive signal output terminal
10
TRo
O
Tracking coil drive signal output terminal
11
VREF
I
Reference voltage (+1.65V) input terminal
12
FMo
O
Sled motor drive signal output terminal
13
DMo
O
Spindle motor drive signal output terminal
14
VSSP3
-
Ground terminal
15
VCOi
I
VCO control voltage input terminal
16
VDDP3
-
Power supply terminal (+3.3V)
17
VDD1
-
Power supply terminal (+1.5V)
18
VSS1
-
Ground terminal
19
FGiN
I
FG signal input terminal Not used
20
IO0 (/HSO)
I
Disc inner position detection signal input terminal
21
IO1 (/UHSO)
O
Not used
22
XVSS3
-
Ground terminal
23
XI
I
System clock input terminal (16.9344 MHz)
24
XO
O
System clock output terminal (16.9344 MHz)
25
XVDD3
-
Power supply terminal (+3.3V)
26
DVSS3
-
Ground terminal
27
RO
O
Audio data (R-ch) output to the electrical volume
28
DVDD3
-
Power supply terminal (+3.3V)
29
DVR
O
Reference voltage (+1.65V) output terminal
30
LO
O
Audio data (L-ch) output to the electrical volume
31
DVSS3
-
Ground terminal
32
VDDT3
-
Power supply terminal (+3.3V)
33
VSS1
-
Ground terminal
Power supply terminal (+1.5V)
Power supply terminal (+1.5V)
S-RAM standby mode control signal input terminal Fixed at “L” in this set
Reset signal input from the system controller “L”: reset
Serial data input from the system controller
Serial data input from the system controller
Serial data input from the system controller
Serial data transfer clock signal input from the system controller
Chip enable signal input from the system controller
Setting terminal for test mode Normally
fi
xed at “L”
45
IRQ
I
Interrupt request signal input terminal Not used
46
AoUT3 (PO4)
O
Request signal output terminal Not used
47
AoUT2 (PO5)
O
Audio data output terminal Not used
48
PIO0
O
Request signal output to the system controller
49, 50
PIO1, PIO2
O
Not used
51
PIO3
I
Gate signal input terminal Not used
52
VSS1
-
Ground terminal
53
VDDT3
-
Power supply terminal (+3.3V)
54
SBSY
O
Subcode block sync signal output to the system controller
55
SBOK/FOK
O
Not used
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