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参数资料
| 型号： | MAX3946ETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/29页 |
| 文件大小： | 0K |
| 描述： | IC LASER DVR SFP 11.3GBPS 24TQFN |
| 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： | 11.3Gbps |
| 通道数： | 1 |
| 电源电压： | 2.85 V ~ 3.63 V |
| 电流 - 电源： | 68mA |
| 电流 - 调制： | 80mA |
| 电流 - 偏置： | 80mA |
| 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： | 托盘 |
| 安装类型： | 表面贴装 |
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EVALUA
AVAILAB
19-5182; Rev 1; 5/11
TION KIT
LE
1Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
General Description
The MAX3946 is a +3.3V, multirate, low-power laser
diode driver designed for Ethernet and Fibre Channel
transmission systems at data rates up to 11.3Gbps.
This device is optimized to drive a differential transmit-
ter optical subassembly (TOSA) with a 25 I flex circuit.
The unique design of the output stage enables use of
unmatched TOSAs, greatly reducing headroom limita-
tions and lowering power consumption.
The device receives differential CML-compatible signals
with on-chip line termination. It can deliver laser modula-
tion current of up to 80mA, at an edge speed of 22ps
(20% to 80%), into a 5 I to 25 I external differential load.
The device is designed to have a symmetrical output
stage with on-chip back terminations integrated into
its outputs. A high-bandwidth, fully differential signal
path is implemented to minimize deterministic jitter. An
equalization block can be activated to compensate for
the SFP+ connector. The integrated bias circuit provides
programmable laser bias current up to 80mA. Both the
laser bias generator and the laser modulator can be dis-
abled from a single pin.
A 3-wire digital interface reduces the pin count and
permits adjustment of input equalization, pulse-width
adjustment, Tx polarity, Tx deemphasis, modulation cur-
rent, and bias current without the need for external com-
ponents. The MAX3946 is available in a 4mm x 4mm,
24-pin TQFN package.
Applications
4x/8x FC SFP+ Optical Transceivers
10GFC SFP+ Optical Transceivers
10GBASE-LR SFP+ Optical Transceivers
10GBASE-LRM SFP+ Optical Transceivers
OC192-SR XFP/SFP+ SDH/SONET Transceivers
Features
S 225mW Power Dissipation Enables < 1W SFP+
Modules
S Up to 100mW Power Consumption Reduction by
Enabling the Use of Unmatched FP/DFB TOSAs
S Supports SFF-8431 SFP+ MSA and SFF-8472
Digital Diagnostic
S 225mW Power Dissipation at 3.3V (I MOD = 40mA,
I BIAS = 60mA Assuming 25 I TOSA)
S Single +3.3V Power Supply
S Up to 11.3Gbps (NRZ) Operation
S Programmable Modulation Current from 10mA to
100mA (5 I Load)
S Programmable Bias Current from 5mA to 80mA
S Programmable Input Equalization
S Programmable Output Deemphasis
S 25 I Output Back Termination at TOUT+ and
TOUT-
S DJ Performance 7ps P-P with Mismatched
Differential Load (5 I )
S DJ Performance 5ps P-P with Mismatched
Differential Load (25 I )
S DJ Performance 5ps P-P with 50 I Differential Load
S Programmable Pulse Width
S Edge Transition Times of 22ps
S Bias Current Monitor
S Integrated Eye Safety Features
S 3-Wire Digital Interface
S -40 ° C to +95 ° C Operation
Ordering Information
PART
MAX3946ETG+
TEMP RANGE
-40 ° C to +85 ° C
PIN-PACKAGE
24 TQFN-EP*
Note: Parts are guaranteed by design and characterization to
operate over the -40°C to +95°C ambient temperature range
(T A ) and are tested up to +85°C.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
_______________________________________________________________ Maxim Integrated Products 1
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3946ETG+ | 功能描述:激光驱动器 1.0625-11.3Gbps SFP Dual-Path Limit Amp 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 |
| MAX3946ETG+T | 功能描述:激光驱动器 1.0625-11.3Gbps SFP Dual-Path Limit Amp 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 |
| MAX3946EVKIT+ | 功能描述:激光驱动器 1.0625Gbps to 11.3Gbps SFP+ Laser Driver with Laser Impedance Mismatch Tolerance 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 |
| MAX3948ETE+ | 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD - Rail/Tube |
| MAX3948ETE+T | 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD - Tape and Reel |
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