HCD-SHAKEX1/SHAKEX3/SHAKEX7
67
MOTHERBOARD BOARD (3/8) IC301 CXD9990R (CD RF AMP FOCUS/TRACKING ERROR AMP CD SYSTEM
PROCESSOR DIGITAL SERVO PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
RF_C
I
RF main beam C input from the optical pick-up block
2
RF_D
I
RF main beam D input from the optical pick-up block
3
RF_E
I
RF sub beam E input from the optical pick-up block
4
RF_F
I
RF sub beam F input from the optical pick-up block
5
AVDD12_2
-
Power supply terminal (+1.2V) (for analog system)
6
AVDD33_1
-
Power supply terminal (+3.3V) (for analog system)
7
XTALI
I
System clock input terminal (27 MHz)
8
XTALO
O
System clock output terminal (27 MHz)
9
AGND33
-
Ground terminal (for analog system)
10
V20
O
Reference voltage (+2V) output to the optical pick-up block
11
V14/VREF0
O
Reference voltage (+1.4V) output to the coil/motor driver
12
REXT
I
Current reference input terminal
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 (for CD)
15
LDO2
O
Laser diode drive signal output to the optical pick-up block (for DVD)
16
AVDD33_2
-
Power supply terminal (+3.3V) (for analog system)
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
CD_VR
O
Variable resistor control signal output to the optical pick-up block (for CD)
20
DVD_VR
O
Variable resistor control signal output to the optical pick-up block (for DVD)
21
TRO
O
Tracking coil control signal output to the coil/motor driver
22
FOO
O
Focus coil control signal output to the coil/motor driver
23
MSW
O
CD/DVD selection signal output terminal “L”: DVD, “H”: CD
24
USB_DM
I/O
Two-way USB data (–) bus terminal
25
USB_DP
I/O
Two-way USB data (+) bus terminal
26
VDD33_USB
-
Power supply terminal (+3.3V) (for USB)
27
VSS33_USB
-
Ground terminal (for USB)
28
PAD_VRT
I/O
USB generating reference current terminal
29
VDD12_USB
-
Power supply terminal (+1.2V) (for USB)
30
SF_CS#
O
Chip select signal output to the serial
fl
ash
31
SF_DO
O
Serial data output to the serial
fl
ash
32
SF_DI
I
Serial data input from the serial
fl
ash
33
SF_CK
O
Serial clock signal output to the
fl
ash ROM
34
IFSCK
O
Serial data transfer clock signal output to the system controller
35
IFSDO
O
Serial data output to the system controller
36
RX
I
Serial data input terminal for
fl
ash writing
37
TX
O
Serial data output terminal for
fl
ash writing
38
PRST#
I
Reset signal input from the system controller “L”: reset
39
NC
-
Not used
40
IFSDI
I
Serial data input from the system controller
41
IFBSY
I
Communication initialization request signal input from the system controller
42
IFCS#
O
Communication initialization request acknowledge signal output to the system controller
43
MFISW
-
Not used
44
LIMITSW
-
Not used
45
MUTE
O
Muting signal output to the coil/motor driver (for focus/tracking coil and sled motor)
46
EEWP
-
Not used
47
SDA
I/O
Two-way I2C data signal with the EEPROM
48
SCL
I/O
Two-way I2C clock signal with the EEPROM
49
NC
-
Not used
50
DVSS33
-
Ground terminal (for digital system)
51
DVDD33
-
Power supply terminal (+3.3V) (for digital system)
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
Ver. 1.1
