Sony HCD-GT3D - IC Pin Function Descriptions; MOTHERBOARD BOARD (5;10) IC301 CXD9990 R (...)

HCD-GT3D
70
MOTHERBOARD BOARD (5/10) 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 serial fl ash
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 O Write protect signal output with the EEPROM
47 SDA I/O Two-way I2C data signal with EEPROM
48 SCL I/O Two-way I2C clock signal with EEPROM
49 NC - Not used
50 DVSS33 - Ground terminal (for digital system)
51 DVDD33 - Power supply terminal (+3.3V) (for digital system)
52 to 55 RD0 to RD3 I/O Two-way data bus with the SD-RAM
56 DVDD12 - Power supply terminal (+1.2V) (for digital system)
57 to 60 RD4 to RD7 I/O Two-way data bus with the SD-RAM