参数资料
| 型号： | MAX3740AETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER SFP VCSEL 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 类型： | 激光二极管驱动器 |
| 数据速率： | 3.2Gbps |
| 通道数： | 1 |
| 电源电压： | 2.97 V ~ 3.63 V |
| 电流 - 电源： | 55mA |
| 电流 - 调制： | 15mA |
| 电流 - 偏置： | 15mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1423 (CN2011-ZH PDF) |
19-3118; Rev 3; 1/10
3.2Gbps SFP VCSEL Driver with Diagnostic
Monitors
General Description
The MAX3740A is a high-speed VCSEL driver for small-
form-factor (SFF) and small-form-factor pluggable (SFP)
fiber optic LAN transmitters. It contains a bias genera-
tor, a laser modulator, and comprehensive safety fea-
tures. The automatic power control (APC) adjusts the
laser bias current to maintain average optical power
over changes in temperature and laser properties. The
driver accommodates common cathode and differential
configurations.
The MAX3740A operates up to 3.2Gbps. It can switch
up to 15mA of laser modulation current and source up
to 15mA of bias current. Adjustable temperature com-
pensation is provided to keep the optical extinction
ratio within specifications over the operating tempera-
ture range. The MAX3740A interfaces with the Dallas
DS1858 to meet SFF-8472 timing and diagnostic
requirements. The MAX3740A accommodates various
VCSEL packages, including low-cost TO-46 headers.
Features
? Supports all SFF-8472 Digital Diagnostics
? 2mA to 15mA Modulation Current
? 1mA to 15mA Bias Current
? Optional Peaking Current to Improve VCSEL Edge
Speed
? Supports Common Cathode and Differential
Configuration
? Automatic Power Control
? Safety Circuits Compliant with SFF and SFP
MSAs
? 4mm ? 4mm, 24-Pin Thin QFN Package
Ordering Information
The MAX3740A safety circuit detects faults that could
cause hazardous light levels and disables the VCSEL
output. The safety circuits are compliant with SFF and
SFP multisource agreements (MSA).
PART
MAX3740AETG
MAX3740AETG +
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 Thin QFN-EP*
24 Thin QFN-EP*
The MAX3740A is available in a compact 4mm ? 4mm,
24-pin thin QFN package and operates over the -40°C
to +85°C temperature range.
Applications
Multirate (1Gbps to 3.2Gbps) SFP/SFF Modules
+ Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit
+3.3V
Gigabit Ethernet Optical Transmitters
Fibre Channel Optical Transmitters
V CC
FAULT
4.7k Ω ?
Infiniband Optical Transmitters
TX_DISABLE
PWRMON
MODSET
R MODSET
SQUELCH
0.1 μ F
MAX3740A
REF
IN+
IN-
COMP
MD
0.047 μ F
R PWRSET
0.1 μ F
R TC?
TC1
TC2
BIASSET
BIAS
OUT+
0.01 μ F
C F?
L1*
R BIASSET
GND PEAKSET
OUT-
BIASMON
0.01 μ F
50 Ω
R F?
R PEAKSET ?
? OPTIONAL COMPONENT
*FERRITE BEAD
R BIASMON
________________________________________________________________ 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.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3740AETG+ | 功能描述:激光驱动器 3.2Gbps SFP VCSEL w/Diagnostic Mtr RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3740AETG+T | 功能描述:激光驱动器 3.2Gbps SFP VCSEL w/Diagnostic Mtr RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3740AETG-T | 功能描述:激光驱动器 3.2Gbps SFP VCSEL w/Diagnostic Mtr RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3740AEVKIT | 功能描述:激光驱动器 Evaluation Kit for the MAX3740A RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3740ETG | 制造商:Maxim Integrated Products 功能描述:3.2GBPS SFP VCSEL DRIVER WITH DIAGNOSTIC MONI - Rail/Tube |
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