Datasheet > EL6288C

EL6288C

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放大器 PC
页数	文件大小	规格书
2页	139K
描述
3-Channel Laser Diode Driver w/Oscillator & APC Amplifier

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EL6288C 数据手册

EL6288C - Product Brief

3-Channel Laser Diode Driver w/Oscillator & APC Amplifier

Features

General Description

• Shrink-Small Package Outline

The EL6288C is a high-performance three channel laser driver that

provides controlled current to a grounded laser diode. Channels 2 and

3 should be used as the write channels, with switching speeds of

approximately one nanosecond rise/fall time. All three channels are

summed together at the I_OUToutput, allowing the user to create multi-

level 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

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

• 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

• Fast Settling APC Amplifier

become a current source at pin I_OUT

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

modulation 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 external 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_OUTshut-off is also achieved by

holding the ENABLE pin low, which will override all other control

pins.

Applications

• CD-RW applications

• Writable optical drives

• Laser diode current switching

The EL6288C also includes a fast settling APC amplifier designed to

interface directly with the front end monitor diode and the sample-

and-hold amplifier for read and write power control. Its 100MHz

bandwidth and 30ns settling time enable up to 16X CD-RW design.

Ordering Information

Part No

Temp. Range

Package

Outline #

EL6288CU

0°C to +70°C

QSOP-16

MDP0041

Connection Diagram

VOUT

VREF

IINR

PDIN 16

VCC 15

IOUT 14

IIN2

GND 13

IIN3

RAMP 12

ENABLE 11

OSCEN 10

RFREQ

OUTEN3

OUTEN2

VCC

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EL6288C相关器件

型号	品牌	获取价格	描述	数据表
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
EL6291CY	ELANTEC	获取价格	Laser Diode Driver with Waveform Generator

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