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PDF VC2010 Data sheet ( Hoja de datos )
| Número de pieza | VC2010 | |
| Descripción | High-performance Spindle/vcm Control | |
| Fabricantes | Agere Systems | |
| Logotipo |  |
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Product Brief
November 2001
VC2010
High-Performance Spindle/VCM Control
Features
VCM Actuator Predriver
I Transconductance amplifier with selectable class B
www.DataSheet4U.com or AB mode
I 14-bit DAC for actuator current control
I Regulated 3-stage retract on voltage fault or com-
mand
I Programmable on-chip transconductance compen-
sation reduces external component count
Spindle Control
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
I Automatic spindle dynamic brake at programmable
RPM after retract
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 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 3-stage constant voltage retract
Pin Information
CP
VMSW
PUMP
GNDSW
NC
UHSD
PU
ULSD
VLSD
PV
VHSD
GNDSW
DMUX
WHSD
PW
WLSD
NRG
V5
NC
NREG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VC2010
60 SPB
59 SPA
58 NC
57 NC
56 GPB
55 GPA
54 GNB
53 GNA
52 VCMB
51 VCMA
50 RSV
49 VMA
48 VREF
47 NC
46 GNDREF
45 NC
44 NC
43 NC
42 NC
41 TESTEN
2539 (F)
Figure 1. VC2010 Pin Diagram (80-Pin TQFP)
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet VC2010.PDF ] | |
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