HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
50
• IC Pin Function Description
CD BOARD IC101 TC94A70FG-101 (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 (+3.3 V)
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 (+3.3 V)
17
VDD1
-
Power supply terminal (+1.5 V)
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 (+3.3 V)
26
DVSS3
-
Ground terminal
27
RO
O
Analog audio (R-ch) signal output terminal
28
DVDD3
-
Power supply terminal (+3.3 V)
29
DVR
O
Reference voltage (+1.65V) output terminal
30
LO
O
Analog audio (L-ch) signal output terminal
31
DVSS3
-
Ground terminal
32
VDDT3
-
Power supply terminal (+3.3 V)
33
VSS1
-
Ground terminal
34
VDD1
-
Power supply terminal (+1.5 V)
35
VDDM1
-
Power supply terminal (+1.5 V)
36
SRAMSTB
I
S-RAM standby mode control signal input terminal Fixed at "L" in this set
37
XRST
I
Reset signal input from the system controller "L": reset
38, 39
BUS0, BUS1
I
Serial data input from the system controller or USB controller
40
BUS2 (SO)
I
Serial data input from the system controller or USB controller
41
BUS3 (SI)
I
Serial data input from the system controller or USB controller
42
BUCK (CLK)
I
Serial data transfer clock signal input from the system controller or USB controller
43
XCCE
I
Chip enable signal input from the system controller or USB controller
44
TEST
I
Setting terminal for test mode Normally fi xed at "L"
45
IRQ
I
Interrupt request signal input terminal
46
AoUT3 (PO4)
O
Not used
47
AoUT2 (PO5)
O
Audio data output to the USB controller
48
PIO0
O
Request signal output to the system controller or USB controller
49
PIO1
O
Request signal output to the USB controller
50
PIO2
O
Not used
51
PIO3
I
Gate signal input from the USB controller
52
VSS1
-
Ground terminal
53
VDDT3
-
Power supply terminal (+3.3 V)
54
SBSY
O
Subcode block sync signal output to the system controller
55
SBOK/FOK
O
Not used
