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MAX3948中文資料
MAX3948數(shù)據(jù)手冊規(guī)格書PDF詳情
General Description
The MAX3948 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 transmitter optical subassembly (TOSA) with a 25I flex circuit. The unique design of the output stage enables DC-coupling to unmatched TOSAs, thereby lowering transmitter power consumption by more than 100mW.
The MAX3948 receives differential AC-coupled signals with on-chip termination. It can deliver laser modulation currents of up to 85mA at an edge speed of 26ps (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 activated to compensate for SFP+/QSFP+ host connector losses. The integrated DC circuit provides programmable laser DC currents up to 61mA. Both the laser DC current generator and the laser modulator can be disabled from a single pin.
The device offers one dedicated pin (VSEL) to program up to four channel addresses for multichannel applications.
The use of a 3-wire digital interface reduces the pin count while permitting adjustment of input equalization, polarity, output deemphasis, and modulation and DC currents without the need for external components. The MAX3948 is available in a 3mm x 3mm, 16-pin TQFN package, and is specified for the -40NC to +95NC extended temperature range.
Benefits and Features
? Lowest Power Consumption
?? ◇ 168mW Typical IC Power Dissipation at 3.3V
????? ? (LDMOD = 40mA, LDDC = 20mA)
?? ◇ 383mW Total Transmitter Power Dissipation at
?? ???? 3.3V Including LDMOD = 40mA, LDDC = 20mA
?? ◇ Enables < 1W Maximum Total SFP+ Module
?? ???? Power Dissipation
?? ◇ Enables < 2.5W Maximum Total QSFP+ Module
?? ???? Power Dissipation
? Saves Board Space
???◇ Small 3mm x 3mm Package
?? ◇ DC-Coupling to the Laser Reduces External
?? ???? Component Count
? Flexibility
?? ◇ Operate Up to Four MAX3948 ICs Over Single
?? ???? 3-Wire Digital Interface
?? ◇ Programmable Modulation Current Up to
?? ???? 85mA (5ω Load)
?? ◇ Programmable DC Current Up to 61mA
?? ???? (Translates to Up to 100mA Laser Bias Current)
?? ◇ Programmable Input Equalization and Output
?? ???? Deemphasis
? Safety
?? ◇ Supports SFF-8431 SFP+ MSA and SFF-8472
?? ???? Digital Diagnostic
?? ◇ Integrated Eye Safety Features with Maskable
?? ???? Faults
?? ◇ DC Current Monitor
??
Applications
?? 40GBASE-LR4 QSFP+ Optical Transceivers
?? 10GBASE-LR SFP+ Optical Transceivers
?? 10GBASE-LRM SFP+ Optical Transceivers
?? OC192-SR SFP+ SDH/SONET Transceivers
MAX3948產(chǎn)品屬性
- 類型
描述
- 型號
MAX3948
- 制造商
Maxim Integrated Products
- 功能描述
10G QSFP+ LDD - Rail/Tube
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
Maxim(美信) |
24+ |
標(biāo)準(zhǔn)封裝 |
13048 |
原廠渠道供應(yīng),大量現(xiàn)貨,原型號開票。 |
|||
Maxim Integrated |
25+ |
16-TQFN(3x3) |
25141 |
Maxim Integrated驅(qū)動器IC-MAX3948ETE+T即刻詢購立享優(yōu)惠#長期有貨 |
|||
MAXIM |
24+ |
TDFN16 |
9863 |
一級代理//放心購買 |
|||
MAXIM |
2024+ |
N/A |
70000 |
柒號只做原裝 現(xiàn)貨價(jià)秒殺全網(wǎng) |
|||
MAXIM |
17+ |
TQFN-16 |
5 |
原裝現(xiàn)貨、真實(shí)庫存 |
|||
MAXIM |
25+23+ |
TQFN16 |
28009 |
絕對原裝正品全新進(jìn)口深圳現(xiàn)貨 |
|||
MAXIM |
19+ |
QFN-16 |
16200 |
原裝正品,現(xiàn)貨特價(jià) |
|||
MAXIM |
2019+/2020+ |
QFN16 |
7500 |
原裝正品現(xiàn)貨庫存 |
|||
MAXIM |
24+ |
QFN |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
|||
MAXIM |
23+ |
TQFN16 |
30000 |
代理全新原裝現(xiàn)貨,價(jià)格優(yōu)勢 |
MAX3948ETE+ 價(jià)格
參考價(jià)格：￥45.0415
MAX3948 資料下載更多...
MAX3948 芯片相關(guān)型號
MAXIM相關(guān)芯片制造商
Datasheet數(shù)據(jù)表PDF頁碼索引
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Maxim Integrated Products 美信半導(dǎo)體
中文資料: 61705條
Maxim Integrated Products是一家專注于模擬和混合信號集成電路的公司，成立于1983年，總部位于美國加利福尼亞州圣何塞。公司設(shè)計(jì)和制造廣泛應(yīng)用于電子設(shè)備的高性能集成電路，涵蓋電源管理、信號處理、傳感器和接口等多個(gè)領(lǐng)域。 Maxim的產(chǎn)品廣泛應(yīng)用于消費(fèi)電子、工業(yè)、汽車、通信等市場，以其高性能和創(chuàng)新技術(shù)著稱。公司致力于通過推動技術(shù)進(jìn)步來滿足客戶的需求，并提供解決方案，幫助客戶實(shí)現(xiàn)更高的效率和更好的性能。 在2021年，Maxim Integrated被Analog Devices收購，進(jìn)一步增強(qiáng)了Analog Devices在市場上的競爭力和技術(shù)實(shí)力。
