17
D-NE330/NE331
•
IC Pin Function Description
Pin No.
Pin Name
I/O
Description
1
FG
O
FG signal output to the system controller
2
XBRK
I
Brake signal input terminal Not used
3
WI
I
Comparator (W) positive pole input terminal
4
VI
I
Comparator (V) positive pole input terminal
5
UI
I
Comparator (U) positive pole input terminal
6
COM
I
Comparator (U/V/W) negative pole input terminal
7
VIN
-
Dry battery connection terminal
8
PGND2
-
Ground terminal
9
L2L
-
Coil connection terminal
10
VCC0
O
Power supply voltage output terminal (+2.3V)
11
PWSW
O
OSC standby signal output terminal
12
VCC2
O
Power supply voltage output terminal (+2.1V)
13
VSTB2
O
Power supply voltage output terminal (+2.1V)
14
VAPC
O
Power supply voltage output terminal (+1.95V)
15
VSTB1
O
Power supply voltage output terminal (+1.25V)
16
VCC1
O
Power supply voltage output terminal (+1.2V)
17
VREF
O
Reference voltage output terminal
18
PWG
I
VAPC power supply on/off control signal input terminal
19
PD
O
Error amplifier output terminal for APC circuit
20
DELAY
I
Delay control signal input terminal
21
INM2
O
Error amplifier output terminal for VCC0 switching power supply circuit
22
RF2
-
Error amplifier connection terminal for VCC0 switching power supply circuit
23
INP2
I
Error amplifier non-invert input of VCC0 switching power supply circuit
24
GND
-
Ground terminal
25
UPCK7
O
FET (bottom side) drive signal output for VD switching power supply circuit
26
UPCKB7
O
FET (top side) drive signal output for VD switching power supply circuit
27
VD
I
Feed back voltage input terminal for VD switching power supply circuit
28
INP7
I
Error amplifier non-invert input for VD switching power supply circuit
29
INM7
O
Error amplifier output terminal for VD switching power supply circuit
30
RF7
-
Error amplifier connection terminal for VD switching power supply circuit
31
VG
O
VG power supply output terminal (+4.5V)
32
C1H
-
Capacitor connection terminal for charge pump (high side) of VG power supply circuit
33
C1L
-
Capacitor connection terminal for charge pump (low side) of VG power supply circuit
34
COLD ST
O
Not used
35
SYNC
I
176.4 kHz clock signal input from the system controller
36
RMCR
O
Wake up signal output to the system controller
37
WAKE
I
Wake up signal input from the system controller
38
CLOCK
I
Serial clock signal input from the system controller
39
DATA
I
Serial data input from the system controller
40
LATCH
I
Latch signal input from the system controller
41
RO3
O
Focus coil drive signal (-) output terminal
42
VD3
-
Power supply terminal (for focus coil drive)
43
FO3
O
Focus coil drive signal (+) output terminal
44
MGND23
-
Ground terminal (for focus/tracking coil drive)
45
RO2
O
Tracking coil drive signal (-) output terminal
MAIN BOARD IC401 TB2169AFG (O)
(FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE, POWER CONTROL)
Summary of Contents for D-NE33
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