HCD-GPX33/GPX55/GPX77/GPX88
54
MB BOARD (2/9) IC501 CXD90013R (CD RF AMP FOCUS/TRACKING ERROR AMP CD SYSTEM PROCESSOR
DIGITAL SERVO PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
RFC
I
RF main beam (A) input from the optical pick-up block
2
RFD
I
RF main beam (D) input from the optical pick-up block
3
RFE
I
RF sub beam (F) input from the optical pick-up block
4
RFF
I
RF sub beam (E) input from the optical pick-up block
5
AVDD12_2
-
Power supply terminal (+1.2V)
6
AVDD33_1
-
Power supply terminal (+3.3V)
7
XTALI
I
System clock input terminal (27 MHz)
8
XTALO
O
System clock output terminal (27 MHz)
9
AGND33
-
Ground terminal
10
V20
O
Reference voltage (+2V) output to the optical pick-up block
11
V14
O
Reference voltage (+1.4V) output terminal
12
REXT
I
Current reference input terminal Fixed at “L” in this set
13
MDI1
I
Laser power monitor input from the optical pick-up block
14
LDO1
O
Laser diode drive signal output to the optical pick-up block
15
LDO2
O
Laser diode drive signal output to the optical pick-up block
16
AVDD33_2
-
Power supply terminal (+3.3V)
17
DMO
O
Spindle motor control signal output to the motor driver
18
FMO
O
Sled motor control signal output to the motor driver
19
TRAY_OPEN
O
Muting signal output to the coil/motor driver (for spindle motor)
20
TRAY_CLOSE
O
CD/DVD selection signal output terminal “L”: CD, “H”: DVD
21
TRO
O
Tracking coil control signal output to the coil driver
22
FOO
O
Focus coil control signal output to the coil driver
23
FG
I
Thermal shut down signal input from the coil/motor driver
24
USB_DM
I/O
Two-way audio serial data with the USB controller
25
USB_DP
I/O
Two-way audio serial data with the USB controller
26
VDD33_USB
-
Power supply terminal (+3.3V)
27
VSS33_USB
-
Ground terminal
28
PAD_VRT
I/O
USB generating reference current terminal
29
VDD12_USB
-
Power supply terminal (+1.2V)
30
SF_CS_
O
Chip select signal output to the fl ash ROM
31
SF_DO
O
Serial data output to the fl ash ROM
32
SF_DI
I
Serial data input from the fl ash ROM
33
SF_CK
O
Serial clock signal output to the fl ash ROM
34
UP1_6
O
Serial data transfer clock signal output to the system controller
35
UP1_7
O
Serial data output to the system controller
36
GPIO11
-
Not used
37
GPIO6
-
Not used
38
PRST#
I
Reset signal input from the system controller “L”: reset
39
IR
I
IR control signal input terminal Not used
40
GPIO3
I
Serial data input from the system controller
41
GPIO4
I
Communication initialization request signal input from the system controller
42
GPIO13
O
Communication initialization request acknowledge signal output to the system controller
43
GPIO9
-
Not used
44
GPIO8
-
Not used
45
GPIO7
O
Muting signal output to the coil/motor driver (for focus/tracking coil and sled motor)
46
GPIO29
-
Not used
47
GPIO30
-
Not used
48
GPIO31
-
Not used
49
GPIO32
-
Not used
50
DVSS33
-
Ground terminal
51
DVDD33
-
Power supply terminal (+3.3V)
52
RD0
I/O
Two-way data bus with the SD-RAM
53
RD1
I/O
Two-way data bus with the SD-RAM
54
RD2
I/O
Two-way data bus with the SD-RAM
