VC2010 [ETC]

Controller Miscellaneous - Datasheet Reference ; 控制器杂项 - 数据表参考\n


型号：	VC2010
厂家：	ETC
描述：	Controller Miscellaneous - Datasheet Reference 控制器杂项 - 数据表参考\n 控制器
文件：	总2页 (文件大小：94K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Product Brief

November 2001

VC2010

High-Performance Spindle/VCM Control

Voltage Monitor, System Reset, and

Auxiliary Supplies

Features

VCM Actuator Predriver

I 5 V, 12 V, and 3.3 V undervoltage fault compara-

tors

I Transconductance amplifier with selectable class B

or AB mode

I Power-on reset signal output

I 14-bit DAC for actuator current control

I 3.3 V regulator with voltage margin control and

current limit

I Regulated 3-stage retract on voltage fault or com-

mand

I Resistor adjustable negative voltage regulator for

MR preamplifiers

I Programmable on-chip transconductance compen-

sation reduces external component count

I Programmable output voltage switching and linear

regulators with undervoltage monitoring

Spindle Control

Other Features

I Motor inductance sense mode for determination of

motor start position

I 12-bit DAC to drive external microactuator driver

I 10-bit ADC to digitize selected internal and exter-

nal signals

I Microprocessor controlled ramp-to-start speed in

start mode

I Special diagnostic features for observation of on-

chip signals

I Sinusoidal current mode or 6-state commutation in

run mode

I Supports 3-stage constant voltage retract

I Programmable wave shape for optimized acoustic

performance

I Transconductance configuration in run mode,

using PWM for efficiency

Pin Information

I Peak current-limit control in start mode, using con-

stant off-time method

I 10-bit DAC with 4-step gain ranging

VMSW

PUMP

GNDSW

UHSD

ULSD

VLSD

VHSD

GNDSW

DMUX

WHSD

SPB

SPA

I Fast restart from partial spindown, using phase fre-

quency comparison of BEMF

GPB

GPA

GNB

GNA

VCMB

VCMA

RSV

VMA

VREF

GNDREF

I Automatic spindle dynamic brake at programmable

RPM after retract

VC2010

Serial Port Interface

PW 15

WLSD

NRG

I 30 MHz read/write serial port

NREG

TESTEN

I 3.3 V TTL compatible digital I/O, 5 V CMOS input

tolerant

2539 (F)

Figure 1. VC2010 Pin Diagram (80-Pin TQFP)

VC2010

Product Brief

November 2001

High-Performance Spindle/VCM Control

Block Diagram

VCC (+12 V)

SPC

SWG

SPD

CHIP

CLK

OSC

BOOSTER

SUPPLY AND

BLOCKING

FET

SERIAL

PORT

SPE

PUMP

VDD (+5 V)

VCK12

CONTROL

AND

INTERNAL

REGULATOR

CHIP

LOCAL

SUPPLY

MONITOR

AND

POWER-ON-

RESET

VCK5

PORZ

GENERATOR

VDD (+5 V)

UHSD

VHSD

WHSD

100

Ω

NRG

100

NREG

100

Ω

SPINDLE

MOTOR

VLSD

(–5 V)

ULSD

WLSD

SPINDLE

VDD (+5 V)

CONTROL

RSM

–5 V; + 3.3 V

SWITCHING

PRG

RCSS

VMAG

REGULATORS

SGND

CVCO

PRI

PREG

VDD (+5 V)

GPB

GPA

SPA

SPB

RSV

SVRG

SVRIA

SVRIB

AUX SWITCHING

AND LINEAR

REGULATORS AND

MONITORING

PROGRAMABLE

SWITCHING

SUPPLY

SVRS

LVRB

LVRS

AUX1

AUX2

SEQ

SOC

ACLK

ADC

RCS

VCM

ACTUATOR

DRIVER

VCMA

VCMB

VCM

(+3.3 V)

ADC

GNA

GNB

AMUX

DMUX

TEST

PROGRAMABLE

LINEAR

SUPPLY

TEST/VIEW

A AND D MUX

VCM DAC

VREF

BG REF

AND BIAS

RBIAS

+20 µACT

–20 µACT

RETRACT AND

BRAKE

RETZ

MICROACTUATOR

DAC

SEQUENCE

UDAC

2537 (F)

Figure 2. VC2010 Block Diagram

For additional information, contact your Agere Systems Account Manager or the following:

INTERNET:

http://www.agere.com

E-MAIL:

docmaster@agere.com

N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286

1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)

ASIA:

Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon

Tel. (852) 3129-2000, FAX (852) 3129-2020

CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen)

JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)

Tel. (44) 7000 624624, FAX (44) 1344 488 045

EUROPE:

Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.

November 2001

PB02-022MTRC