SM8610CV

NIPPON PRECISION CIRCUITS INC.—1

Laser Switching Driver IC

OVERVIEW

The SM8610CV is a portable CD player laser driver IC. It uses a laser switching drive that reduces the laser

power dissipation, thereby reducing data read current consumption and extending battery life significantly,

when compared with existing devices which use a constant-current laser control method with corresponding

high dissipation which places limits on battery life.

FEATURES

I

2.4V supply voltage

I

Laser switching driver built-in

I

Laser switching frequency range: 8.6 to 26MHz

I

Switching pulsewidth duty adjustable

I

Laser drive maximum current adjustable

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Laser control loop gain adjustable

I

Power-save mode (Laser driver current stop func-

tion)

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Package: 16-pin VSOP

APPLICATIONS

I

Portable CD player

ORDERING INFORMATION

PINOUT

(Top view)

PACKAGE DIMENSIONS

(Unit: mm)

Weight: 0.07g

Device

Package

SM8610CV

16-pin VSOP

1

9

16

8

LDISET

NC

MUTE

PCK

DUTYADJ

FLOCK

NC

RG1

NC

RG2

VCC

LDIOUT

LDOFF

NC

GND

PDVIN

5.1 0.2

0.5 0.2

0.275typ

0.65

0.10

0.15

+ 0.1

- 0.05

0.22

+ 0.1

- 0.05

0 to 10