Datasheet > MAX3949ETE+

MAX3949ETE+

更新时间： 2024-02-07 22:48:11

品牌	Logo	应用领域
美信 - MAXIM		驱动电信电信集成电路
页数	文件大小	规格书
37页	2879K
描述
1GBPS TO 11.3GBPS, SFP+ LASER DRIVER

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技术参数
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MAX3949ETE+ 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
Factory Lead Time：	15 weeks	风险等级：	2.25
峰值回流温度（摄氏度）：	NOT SPECIFIED	电信集成电路类型：	TELECOM CIRCUIT
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

MAX3949ETE+ 数据手册

19-6137; Rev 0; 6/12

E V A L U A T I O N K I T A V A I L A B L E

MAX3949

11.3Gbps, Low-Power, AC-Coupled Laser Driver

General Description

Benefits and Features

The MAX3949 is a 3.3V, multirate, low-power laser diode

driver designed for Ethernet, Fibre Channel, and SONET

transmission systems at data rates up to 11.3Gbps.

This device is optimized to drive a differential transmit-

ter optical subassembly (TOSA) with a 25I flex circuit.

The unique design of the output stage enables use of

unmatched TOSAs.

S Low Power Consumption

S Saves Board Space

 Small 3mm x 3mm Package

S Flexibility

 Programmable Modulation Current Up to

85mA (5ω Load)

 Programmable Bias Current Up to 105mA

 Programmable Input Equalization and Output

Deemphasis

The device receives differential AC-coupled signals with

on-chip termination. It can deliver laser modulation cur-

rents of up to 85mA at an edge speed of 22ps (20% to

80%) into a 5I external differential load. The device is

designed to have a high-bandwidth differential signal

path with on-chip back termination resistors integrated

into its outputs. An input equalization block can be acti-

vated to compensate for SFP+ host connector losses.

The integrated bias circuit provides programmable laser

bias currents up to 105mA. Both the laser bias current

generator and the laser modulator can be disabled from

a single pin.

S Safety

 Supports SFF-8431 SFP+ MSA and SFF-8472

Digital Diagnostic

 Integrated Eye Safety Features with Maskable

Faults

 Bias Current Monitor

Applications

10GBASE-LR SFP+ Optical Transceivers

10GBASE-LRM SFP+ Optical Transceivers

OC192-SR SFP+ SDH/SONET Transceivers

The use of a 3-wire digital interface reduces the pin count

while permitting adjustment of input equalization, polarity,

output deemphasis, and modulation and bias currents

without the need for external components. The device is

available in a 3mm x 3mm, 16-pin TQFN package, and is

specified for the -40NC to +95NC extended temperature

range.

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX3949.related

�� Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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