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MAX3945ETE

更新时间： 2024-02-29 17:21:41
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
24页 2570K
描述
1.0625Gbps to 11.3Gbps, SFP Dual-Path Limiting Amplifier

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MAX3945ETE 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：QCCN, LCC16,.12SQ,20
Reach Compliance Code：compliantHTS代码：8542.39.00.01
Factory Lead Time：12 weeks风险等级：1.74
JESD-30 代码：S-PQCC-N16JESD-609代码：e3
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：QCCN封装等效代码：LCC16,.12SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER
电源：3/3.3 V认证状态：Not Qualified
子类别：ATM/SONET/SDH ICs最大压摆率：62 mA
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
Base Number Matches：1

MAX3945ETE 数据手册

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19-5144; Rev 0; 2/10  
1.0625Gbps to 11.3Gbps,  
SFP+ Dual-Path Limiting Amplifier  
General Description  
Features  
S 130mW Power Dissipation Enables < 1W SFP+  
The MAX3945 is a +3.3V, multirate, low-power limiting  
amplifier optimized for Fibre Channel and Ethernet trans-  
mission systems at data rates up to 11.3Gbps. The high-  
sensitivity limiting amplifier limits the signal generated by  
a transimpedance amplifier into a CML-level differential  
output signal. All differential inputs and outputs (I/O) are  
optimally back terminated for 50Itransmission line PCB  
design. The MAX3945’s dual-path limiting amplifier has  
programmable filtering to optimize sensitivity for differ-  
ent data rates and to suppress relaxation oscillations  
that could occur in some optical systems. The MAX3945  
incorporates two loss-of-signal (LOS) circuits and a pro-  
grammable time mask for the LOS output.  
Modules  
S Enables Single-Module Design Compliance  
with 1000BASE-SX/LX and 10GBASE-SR/LR  
Specifications  
S -25.3dBm Optical Sensitivity at 1.25Gbps Using a  
10.32Gbps ROSA  
S Selectable 1GHz/2.1GHz/2.5GHz/3GHz Input Filters  
at RATE_SEL = 0 Setting  
S Supports SFF-8431 SFP+ MSA and SFF-8472  
Digital Diagnostic  
S Total Power Dissipation of 130mW at 3.3V Power  
A 3-wire digital interface reduces the pin count and  
enables control of LOS threshold, LOS polarity, LOS  
mode, CML output level, input offset correction, receive  
(Rx) polarity, Rx input filter, and Rx deemphasis without  
the need for external components.  
Supply with RSSI Monitor-Based LOS  
S Total Power Dissipation of 154mW at 3.3V Power  
Supply with Rx Input-Based LOS  
S 4mV  
P-P  
Input Sensitivity at 11.3Gbps  
S 4ps  
S 4ps  
S 5ps  
DJ at 11.3Gbps with RATE_SEL = 1  
DJ at 8.5Gbps with RATE_SEL = 1  
DJ at 4.25Gbps with RATE_SEL = 0,  
P-P  
P-P  
P-P  
The MAX3945 is packaged in a 3mm x 3mm, 16-pin  
TQFN package.  
Applications  
1x/2x/4x/8x SFF/SFP/SFP+ MSA Fibre-Channel  
Optical Transceiver  
BW1 = 1, BW0 = 1  
S 9.0ps  
DJ at 1.25Gbps with RATE_SEL = 0,  
P-P  
BW1 = 0, BW0 = 0  
10GBASE-SR/LR SFP+ Optical Transceiver  
10G PON ONU  
S 26ps Rise and Fall Time with RATE_SEL = 1  
S 52ps Rise and Fall Time with RATE_SEL = 0  
Ordering Information  
S CML Output with Level Adjustment and Squelch  
Mode  
PART  
TEMP RANGE  
PIN-PACKAGE  
S Programmable CML Output Deemphasis  
S CML Output Polarity Select  
MAX3945ETE+  
-40NC to +85NC  
16 TQFN-EP*  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
S LOS Polarity Select  
S Programmable Masking Time for the LOS Output  
S LOS Assert/Deassert Level Adjustment  
Typical Application Circuit appears at end of data sheet.  
S Choice of Rx Input-Based LOS or RSSI Monitor-  
Based LOS  
S 3-Wire Digital Interface Compatible with Maxim’s  
SFP+ Family of Products  
_______________________________________________________________ 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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