HCD-DH50R/DH70SWR
54
• IC Pin Function Description
DMB20 BOARD IC2006 CXD9894R-A (RF AMP, SERVO DSP, MPEG DECODER, AUDIO PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
OSC
O
RF offset cancellation capacitor connecting terminal
2
RFGC
O
RF AGC loop capacitor connecting terminal for DVD-ROM
3
IREF
I
Reference current input terminal
4
AVDD3
-
Power supply terminal (+3.3V)
5
AGND
-
Ground terminal
6
DVDA
I
AC coupled input path A
7
DVDB
I
AC coupled input path B
8
DVDC
I
AC coupled input path C
9
DVDD
I
AC coupled input path D
10
DVDRF IP
I
AC coupled DVD RF signal input from the optical pick-up block
11
MA
I
DC coupled main-beam RF signal input A
12
MB
I
DC coupled main-beam RF signal input B
13
MC
I
DC coupled main-beam RF signal input C
14
MD
I
DC coupled main-beam RF signal input D
15
SA
I
DC coupled sub-beam RF signal input A Not used
16
SB
I
DC coupled sub-beam RF signal input B Not used
17
TNI
I
3 beam satellite PD signal negative input from the optical pick-up block
18
TPI
I
3 beam satellite PD signal positive input from the optical pick-up block
19, 20
MDI1, MDI2
I
Laser power monitor input from the optical pick-up block
21
LDO2
O
Laser diode drive signal output to the optical pick-up block (for DVD)
22
LDO1
O
Laser diode drive signal output to the optical pick-up block (for CD)
23
SVDD3
-
Power supply terminal (+3.3V)
24
CSO
O
Central servo signal output terminal Not used
25
RFLVL
O
RFRP low pass output terminal Not used
26
SGND
-
Ground terminal
27
V2REFO
O
Reference voltage (+2.8V) output terminal
28
V2O
O
Reference voltage (+2V) output to the optical pick-up block
29
VREFO
O
Reference voltage (+1.4V) output terminal
30
FEO
O
Focus error monitor output terminal Not used
31
TEO
O
Tracking error monitor output terminal Not used
32
TEZISLV
O
Slice level of tracking error signal output terminal Not used
33
OPOUT
O
Output from the internal operational ampli
fi
er Not used
34
OP_INN
I
Negative input to the internal operational ampli
fi
er Not used
35
OP_INP
I
Spindle motor hall sensor input from the motor driver
36
DMO
O
Spindle motor control signal output to the motor driver
37
FMO
O
Sled motor control signal output to the motor driver
38
TROPENPWM
O
Loading motor control signal output to the motor driver
39
IOPMON
I
Power monitor terminal
40
TRO
O
Tracking coil control signal output to the coil driver
41
FOO
O
Focus coil control signal output to the coil driver
42
AGND18
-
Ground terminal
43
AVDD18
-
Power supply terminal (+1.8V)
44
USB_DP
I/O
Two-way data (positive) bus with the USB connector
45
USB_DM
I/O
Two-way data (negative) bus with the USB connector
46
USB_VDD3
-
Power supply terminal (+3.3V)
47
USB_VSS
-
Ground terminal
48
PAD_VRT
I/O
Reference current terminal generated with USB Not used
49
USB_VDD18
-
Power supply terminal (+1.8V)
50
USB_VSS
-
Ground terminal
51
USB_XO
O
System clock output terminal for USB Not used
52
USB_XI
I
System clock input terminal for USB Not used
53
LIMITSW
I
Limit detection switch input terminal
54
MSW
O
CD/DVD selection signal output terminal “L”: CD, “H”: DVD
55
DVDD18
-
Power supply terminal (+1.8V)
56 to 64
HA2 to HA8, HA18,
HA19
O
Address signal output to the
fl
ash ROM
65
DVDD3
-
Power supply terminal (+3.3V)
Содержание HCD-DH50R
Страница 9: ...HCD DH50R DH70SWR 9 ARRANGEMENT OF LEAD WIRE lead wire lead wire ...
Страница 87: ...MEMO HCD DH50R DH70SWR 87 ...
