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參數(shù)資料
| 型號： | VC2100 |
| 英文描述： | Controller Miscellaneous - Datasheet Reference |
| 中文描述： | 控制器雜項-數(shù)據(jù)表參考 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 107K |
| 代理商： | VC2100 |
Product Brief
November 2001
VC2100
High-Performance Spindle/VCM Control
Features
VCM Actuator Driver
I
0.325
worst-case value internal power device
I
Transconductance amplifier with class AB mode
I
14-bit DAC for actuator current control
I
Programmable closed loop retract for ramp load/
unload on voltage fault or command
I
Programmable on-chip transconductance compen-
sation reduces external component count
Spindle Control
I
0.325
worst-case value internal power device
I
Motor inductance sense mode for determination of
motor start position
I
Microprocessor controlled ramp-to-start speed in
start mode
I
Sinusoidal current mode or 6-state commutation in
run mode
I
Programmable wave shape for optimized acoustic
performance
I
Transconductance configuration in run mode,
using PWM for efficiency
I
Peak current limit control in start mode, using con-
stant off-time method
I
10-bit DAC with 4-step gain ranging
I
Fast restart from partial spindown, using phase fre-
quency comparison of BEMF
Serial Port Interface
I
30 MHz read/write serial port
I
3.3 V TTL compatible digital I/O, 5 V CMOS input
tolerant
Voltage Monitor, System Reset, and
Auxiliary Supplies
I
5 V, 12 V, and 3.3 V undervoltage fault compara-
tors
I
Power on reset signal output
I
3.3 V regulator with voltage margin control and
current limit
I
Resistor adjustable negative voltage regulator for
MR preamplifiers
I
Programmable output voltage switching and linear
regulators with undervoltage monitoring
Other Features
I
On-chip 0.150
worst-case value isolation power
device
I
12-bit DAC to drive external microactuator driver
I
10-bit ADC to digitize selected internal and exter-
nal signals
I
Special diagnostic features for observation of on-
chip signals
I
Supports programmable constant voltage retract
Pin Information
2719 (F)
Figure 1. VC2100 Pin Diagram (64-Pin eTQFP)
GNDSW
CP
PUMP
RSM2
PW
VMSP2
V12SP2
VMSP2
PV
RSM1
PU
VMSP1
V12SP1
SVRG
PRG
SPC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NRG
GNDVCMP
GNDVCMP
VCMA
VCMB
VMVCMP
VMVCMP
V12VCM
UMA
GNDA2
RSU
UCMAS
SHOCK
RBIAS
AUX2
AUX1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
S
S
P
R
S
S
A
A
D
G
P
N
P
G
A
V
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
V
T
L
L
U
S
S
S
V
V
G
S
R
V
R
C
4
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
VC2100
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