Datasheet > EL6281

EL6281

更新时间： 2024-02-02 05:36:26

品牌	Logo	应用领域
ELANTEC		驱动器放大器 PC
页数	文件大小	规格书
2页	144K
描述
4-Channel Laser Driver with APC Amp

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EL6281 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.68
Base Number Matches：	1

EL6281 数据手册

EL6281C - Product Brief

4-Channel Laser Driver with APC Amp

Features

General Description

• Read + 3 Write Channel laser

driver with oscillator & fast I/V

amplifier

• Rise time = 0.8 nsec

• Fall time = 0.8 nsec

• 200V/µs I/V amplifier

• 100X gain, 100mA low noise read

channel

• 200X gain, 200mA write channel

The EL6281C is a combination read + 3 write level laser driver with

IV amplifier. A dual amplitude, dual frequency RF oscillator sums on

the output for laser noise reduction during read or write. All these

functions are provided in 24-lead QSOP and LPP packages.

The ENABLE pin enables the read & write channels. Positive current

supplied to the IIN lines, through user selected resistors, allow the full

scale range of each amplifier to be matched to the full scale range of

the users control DACs. When the WEN pins are switched low, the

respective current is summed to the output with 1ns rise and fall times.

• Two 100X gain, 100mA write

channels

• 500MHz, 100mA_P-POscillator

with dual frequency and amplitude

control

The 100mA_P-P(max) oscillator is switched on and off by the OSCEN

line. The R/W line allows the oscillator to operate at one amplitude

and frequency when R/W is high, and another amplitude and fre-

quency when R/W is low.

The entire chip is powered down when ENABLE is low. The user can

calibrate the gain of the I/V amplifier. With a slew rate around

200V/µs, the I/V amplifier can normally settle to less than 1% within

30ns.

• 3.3V compatible logic signals

• Single +5V supply

Applications

• CD-RW to 16X

• CD-R to 32X

• Writable Optical Disk Drives

Connection Diagram

Ordering Information

VOUT

VREF

IINR

PDIN 24

VCC 23

Part No.

EL6281CU

EL6281CL

Temp. Range

0°C to +70°C

Package

QSOP-24

LPP-24

Outline #

MDP0040

MDP0046

VCC 22

IIN2

RF1

19 VCC

18 IOUT

17 GND

16 GND

IIN2

IOUT 21

RFREQ1

IIN3

GND 20

IIN3

IIN4

RF2

GND 19

Thermal Pad

IIN4

RAMP1 18

RAMP2 17

ENABLE 16

OSCEN 15

VCC 14

RAMP1

RFREQ2

RWB

GND

RAMP2

ENABLE

10 GND

11 WEN4

12 WEN3

WEN2 13

24-Pin LPP Top View

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these

specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

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