Advertisement
IC DESCRIPTION-2/4 (TC9284BF)-1/3
QQ
3 7 63 1515 0
Pin No.
Pin Name
1
GNDA
2
RO
______
3
RO
4
VDA
______
5
LO
6
LO
7
GNDA
____________ ____________
8-10
TEST3-TEST5
11
SBOK
12
VDDD
13
GNDD
14-17
BUS0-BUS3
18
CCE
19
BUCK
20
PFCK
________
21
RST
22
SUBSYC
23
SUBD
TE
L 13942296513
24
CLCK
25
VDDD
26
GNDD
27
DFCT
28
TEL2
29
TEL1
30
TGUL
31
TGUH2
32
TUGH1
33
TKIC
34
FMON
____________
35
TEST1
36
FMFB
___________
37
TEST
www
38
DMON
.
http://www.xiaoyu163.com
I/O
—
D/A converter R-channel analog GND.
O
R-channel data positive output.
O
R-channel data inverted output.
—
D/A converter power supply.
O
L-channel data inverted output.
O
L-channel data positive output.
—
D/A converter L-channel analog GND.
I
TEST pin. Normally "H" or open.
O
Sub code Q data CRCC judgment result output. Judgment result OK: H
—
Digital power supply. (+5 V)
—
Digital GND.
I/O
µprocessor interface, data input/output.
I
µprocessor interface, chip enable signal input. When "L" : BUS 3-0 are active
I
µprocessor interface, clock input.
O
PB frame sync output. (Not connected)
I
Reset signal input. "L" at reset.
Sub code block sync output. When sub code is detected,"H" at S1 position.
O
(Not connected)
O
Sub code P-W output. (Not connected)
I
Sub code P-W data read clock input. (Not connected)
—
Digital power supply. (+5 V)
—
Digital GND.
O
Defect detection signal output. When defect is detected: "VREF", normally "HiZ".
O
Tracking gain adjustment analog switch output. "VREF" , or "HiZ".
O
Tracking gain adjustment analog switch output. "VREF" , or "HiZ".
Analog switch output for tracking servo gain up. Polarity in gain-up mode and normal mode
O
can be selected by command.
O
Analog switch output for tracking servo gain up. "HiZ" for gain-up, normally "VREF".
O
TGUH1 during normal playback. TGUH2: not used
Tracking actuator kick signal output. NKICx and CKICx are used for kick during tracking gain
O
adjustment. "VREF" for outermost track."O" for moving toward inner track. Normally "HiZ".
Analog switch output to turn ON/OFF the feed servo. "HiZ" to turn ON servo.
O
"VREF" to turn OFF servo.
I
TEST pin. Normally "H" or open.
Feed motor FWD/BWD direction control signal output."2VREF" for outmost track.
O
"O" for moving toward inner track. Normally "HiZ".
I
TEST pin. Normally "H" or open.
O
Analog switch output to select gain of the disc motor drive circuit. "HiZ" for CLV servo OFF,
x
ao
"HiZ" or "VREF" can be selected by command.
u163
y
i
http://www.xiaoyu163.com
2 9
8
Description
Q Q
3
6 7
1 3
1 5
co
.
-25-
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
Advertisement
