KA3120 查看數據表（PDF） - Fairchild Semiconductor

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KA3120

SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER

Fairchild Semiconductor 

PRELIMINARY

KA3120

ELECTRICAL CHARACTERISTICS (Continued)

(Ta=25°C, unless otherwise specified)

Characteristic

VCM REFERENCE VOLTAGE

VCM reference voltage

VCM ERROR AMPLIFIER

Amplifier output high

Amplifier output low

Short circuit current

Input offset voltage

Errot amplifier open loop gain

Unit gain bandwidth

VCM SENSE AMPLIFIER

Amplifier output high

Amplifier output low

Short circuit current

Input offset voltage

Unit gain bandwidth

Sense amplifier voltage gain1

Sense amplifier voltage gain2

VCM POWER AMPLIFIER

Power Amplifier gain1

Power Amplifier gain2

Power Amplifier output high voltage1

Power Amplifier output high voltage2

Power Amplifier output low voltage1

Power Amplifier output low voltage2

Input offset voltage

Unit gain bandwidth1

Unit gain bandwidth2

VCM OFFSET COMPARATOR

Offset comparator high voltage

Offset comparator low voltage

Offset comparator offset voltage

Offset comparator hysteresis

Symbol

VREF

VEOH

VEOL

IESC

VOSE

AVE

BGE

VSOH

VSOL

ISSC

VOSE

BGS

AVS1

AVS2

APO1

APO2

VPOH1

VPOH2

VPOL1

VPOL2

VOSE

BGP1

BGP2

VOCH

VOCL

VOCOS

VOCHYS

Test conditions

CNTL3=5V

−

−

−

−

−

−

−

−

−

−

−

Gainsel=5V

Gainsel=5V

−

−

−

−

−

−

−

−

−

−

−

−

−

18

MIC-99D001

January 1999

HDD PRODUCTS

Min. Typ. Max. Unit

3.8 4.0 4.2

V

10.8 11.2 11.5

0.5 0.8 1.2

10

−

−

−15 0

15

−

80

−

−

2.3

−

V

V

mA

mV

dB

MHz

10.8 11.2 11.5

0.5 0.8 1.2

10

−

−

−15 0

15

−

3.4

−

−

24

−

−

6

−

V

V

mA

mV

MHz

dB

dB

24 24.6 25

24 24.6 25

11.5 11.8 12.0

11.5 11.8 12.0

0 0.2 0.5

0 0.2 0.5

−15 0

15

−

2

−

−

2

−

dB

dB

V

V

V

V

mV

MHz

MHz

4.5 4.8 5.0

V

0

0.2 0.5

V

−

0

−

mV

5

10 15

mV

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