EL6252C

更新时间： 2024-11-19 22:49:11

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	42K
描述
2-Channel laser diode Driver + Oscillator

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中文翻译

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EL6252C 数据手册

EL6252C - Product Brief

2-Channel laser diode Driver + Oscillator

Features

General Description

• Mini-Small Package Outline

The EL6252C is a high-performance two channel laser diode current

amplifier that provides controlled current to a grounded laser diode.

The write amplifier can provide over 200mA of DC or pulsed current.

The R and W channels have switching speeds of approximately one

nanosecond rise/fall time and are summed together at the I_OUToutput.

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

(virtually ground). The current seen at this pin is then amplified by

• Voltage-controlled output current

source requiring one external set

resistor per channel

• Current-controlled output current

source.

• Rise time = 1.0 ns

• Fall time = 1.1 ns

100X to become a current source at pin I_OUT

• On chip oscillator with frequency

and amplitude control by use of

external resistors to ground

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

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

held high (floating not recommended). Complete control of amplitude

and frequency is set by two external resistors connected to ground at

pins RFREQ and RAMP (see graphs in this data sheet for further

explanation).

• Oscillator to 500 MHz

• Oscillator to 100 mA pk/pk

• Single +5V supply (±10%)

• Current amplification = 100

• CMOS control signals

Write current pulses appear when an ‘L’ signal is applied to the OUT-

ENW pin.

Applications

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.

• MO drives

• Mini-Disc drives

• Writable optical drives

• Laser diode current switching

Ordering Information

Connection Diagram

Part No

Temp. Range

Package

Outline #

EL6252CY

0°C to +70°C

MSOP10

MDP0043

INR

I_OUT

INW

RFREQ

GND

RAMP

OUTENW

OSCEN

Complete Product Specifications

Elantec Technical Support:

North America: 1-888-352-6832 X 311

Asia: +85-45-682-5820

Europe: +44-18-977-6020

中文翻译

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与EL6252C相关器件

型号	品牌	获取价格	描述	数据表
EL6252CY	ELANTEC	获取价格	2-Channel laser diode Driver + Oscillator
EL6253	ELANTEC	获取价格	3-Channel Laser Diode Driver Oscillator
EL6253C	ELANTEC	获取价格	3-Channel Laser Diode Driver Oscillator
EL6253CU	ELANTEC	获取价格	3-Channel Laser Diode Driver Oscillator
EL6255	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator
EL6255C	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator
EL6255CU	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator
EL6257	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator
EL6257C	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator
EL6257CU	ELANTEC	获取价格	4-Channel Laser Diode Driver + Oscillator

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