LB1817M 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB1817M

FDD Spindle Motor Driver

SANYO -> Panasonic 

Pin Description

Pin No. Symbol

1

VCC

Pin voltage

2 AGC

LB1817M

Unit (resistance: Ω)

Equivalent circuit

Pin description

• Power supply voltage pin.

Voltage must be stable and free of ripple

noise interference.

• AGC pin.

Controls hall-effect amplifier gain in

response to hall-effect input frequency.

External capacitor installation.

3 DSC out

• Speed discriminator pin.

4 CT

5 Vref1

2.5V typ

6 Vref2

2.15V typ

• Timing adjustment pin.

External CR for delay time constant

connected.

• Vref1 pin.

Used as external CR power supply for

index timing adjustment applications.

• Vref2 pin.

Used for sensor bias for external index

applications.

Continued on next page.

No. 4355-4/9

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