Datasheet > EL6286C

EL6286C

更新时间： 2024-11-17 23:14:47

品牌	Logo	应用领域
ELANTEC		振荡器驱动器二极管激光二极管
页数	文件大小	规格书
2页	155K
描述
4-Ch Laser Diode Driver + Oscillator

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EL6286C 数据手册

EL6286C - Product Brief

4-Ch Laser Diode Driver + Oscillator

Features

General Description

• “Shrink-Small” Outline Package

The EL6286C 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 = 0.8ns

• Fall time = 0.8ns

• 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 any 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).

Output current pulses are enabled when an ‘L’ signal is applied to the

OUTEN pin. No output current flows when OUTEN is ‘H’, and addi-

tional laser diode protection is provided since the OUTEN input will

float high when open. Complete I_OUTshutoff is also achieved by hold-

ing the ENABLE pin low, which will override all other control pins.

Applications

• CD-RW applications

• Writable optical drives

• Laser diode current switching

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.

Ordering Information

Part No

Temp. Range

Package

Outline #

EL6286CU

0°C to +70°C

QSOP-24

MDP0040

Connection Diagram

GND

24 GND

23 VCC

IINR

GND

22 VCC

IIN2

21 IOUT

20 IOUT

19 GND

18 RAMP

17 ENABLE

16 OSCEN

15 VCC

RFREQ

IIN3

IIN4

OUTENR

OUTEN2

OUTEN3 10

OUTEN4 11

GND 12

14 VCC

13 GND

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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与EL6286C相关器件

型号	品牌	获取价格	描述	数据表
EL6286CU	ELANTEC	获取价格	4-Ch Laser Diode Driver + Oscillator
EL6287C	ELANTEC	获取价格	4-Ch Laser Diode Driver + Oscillator
EL6287CU	ELANTEC	获取价格	4-Ch Laser Diode Driver + Oscillator
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

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