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EL6287CU

更新时间： 2024-11-17 23:14:47

品牌	Logo	应用领域
ELANTEC		振荡器驱动器驱动程序和接口二极管激光二极管接口集成电路局域网
页数	文件大小	规格书
2页	136K
描述
4-Ch Laser Diode Driver + Oscillator

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EL6287CU 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.68	Is Samacsys：	N
Base Number Matches：	1

EL6287CU 数据手册

EL6287C - Product Brief

4-Ch Laser Diode Driver + Oscillator

Features

General Description

• “Shrink-Small” Outline Package

The EL6287C is a four channel laser diode current amplifier that pro-

vides controlled current to a grounded laser diode. Channels 2, 3, and

4 must be used as the write channels, with switching speeds of approx-

imately one nanosecond rise/fall time. All four channels are summed

together at the I_OUToutput, allowing the user to create multilevel

waveforms in order to optimize laser diode performance. The level of

the output current is set by an analog voltage applied to an external

resistor which converts the voltage into a current at the I_INpin (virtu-

ally ground). The current seen at this pin is then amplified to become a

• Voltage-controlled output current

source requiring one external set

resistor per channel

• Current-controlled output current

source

• Rise time = 0.8 nsec

• Fall time = 0.8 nsec

• On chip oscillator with frequency

and amplitude control by use of

external resistors to ground

• Oscillator to 500MHz

• Oscillator to 100mA pk/pk

• Single +5V supply (±10%)

• Disable feature for power-up

protection and power savings

• CMOS control signals

current source at pin I_OUT

An on-chip 500MHz oscillator is provided to allow current modula-

tion when in read mode. This is turned on when the OSCEN pin is held

high. Complete control of amplitude and frequency is set by two exter-

nal resistors connected to ground at pins RFREQ and RAMP (see

graphs in this data sheet for further explanation). The oscillator will

turn off whenever any of the OUTEN pins for channels 2, 3, or 4 (the

write channels) are low (see truth table).

The external resistors allow the user to accurately and independently

set each amplifier transconductance by applying a voltage to each

resistor, without restriction on the voltage range, thus ensuring broad

voltage DAC compatibility. Alternatively, the I_INpin can be biased

from a current DAC or other current source.

Applications

• CD-RW applications

• Writable optical drives

• Laser diode current switching

Connection Diagram

Ordering Information

GND

IINR

GND

IIN2

GND 24

VCC 23

Part No

Temp. Range

Package

Outline #

EL6287CU

0°C to +70°C

24-Pin QSOP

MDP0040

VCC 22

IOUT 21

IOUT 20

GND 19

RAMP 18

RFREQ

IIN3

IIN4

OUTENR ENABLE 17

OUTEN2 OSCEN 16

10 OUTEN3

11 OUTEN4

12 GND

VCC 15

VCC 14

GND 13

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.

中文翻译

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与EL6287CU相关器件

型号	品牌	获取价格	描述	数据表
EL6288C	ELANTEC	获取价格	3-Channel Laser Diode Driver w/Oscillator & APC Amplifier
EL6288CU	ELANTEC	获取价格	3-Channel Laser Diode Driver w/Oscillator & APC Amplifier
EL6290C	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator
EL6290CJ	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator
EL6290CL	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator
EL6290CL	RENESAS	获取价格	EL6290CL
EL6290CU	RENESAS	获取价格	EL6290CU
EL6290CU	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator
EL6291C	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator
EL6291CL	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator

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