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| 型号： | MAX3945ETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP LIMITING 3.3V LP 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 限幅放大器 |
| 应用： | 光纤学网络 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（3x3） |
| 包装： | 管件 |
_______________________________________________________________ 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.
MAX3945
1.0625Gbps to 11.3Gbps,
SFP+ Dual-Path Limiting Amplifier
19-5144; Rev 0; 2/10
General Description
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 50I transmission 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.
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.
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
10GBASE-SR/LR SFP+ Optical Transceiver
10G PON ONU
Ordering Information
Features
S
130mW Power Dissipation Enables < 1W SFP+
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
Supply with RSSI Monitor-Based LOS
S
Total Power Dissipation of 154mW at 3.3V Power
Supply with Rx Input-Based LOS
S
4mVP-P Input Sensitivity at 11.3Gbps
S
4psP-P DJ at 11.3Gbps with RATE_SEL = 1
S
4psP-P DJ at 8.5Gbps with RATE_SEL = 1
S
5psP-P DJ at 4.25Gbps with RATE_SEL = 0,
BW1 = 1, BW0 = 1
S
9.0psP-P DJ at 1.25Gbps with RATE_SEL = 0,
BW1 = 0, BW0 = 0
S
26ps Rise and Fall Time with RATE_SEL = 1
S
52ps Rise and Fall Time with RATE_SEL = 0
S
CML Output with Level Adjustment and Squelch
Mode
S
Programmable CML Output Deemphasis
S
CML Output Polarity Select
S
LOS Polarity Select
S
Programmable Masking Time for the LOS Output
S
LOS Assert/Deassert Level Adjustment
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
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit appears at end of data sheet.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
MAX3945ETE+
-40NC to +85NC
16 TQFN-EP*
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3945ETE+ | 功能描述:限幅放大器 1.0625-11.3Gbps SFP Dual-Path Limit Amp RoHS:否 制造商:Micrel 输入电压范围（最大值）:3.6 V 工作电源电压:3.3 V 电源电流:40 mA 工作温度范围:- 40 C to + 85 C 封装 / 箱体:MSOP-10 封装:Tube |
| MAX3945ETE+T | 功能描述:限幅放大器 1.0625-11.3Gbps SFP Dual-Path Limit Amp RoHS:否 制造商:Micrel 输入电压范围（最大值）:3.6 V 工作电源电压:3.3 V 电源电流:40 mA 工作温度范围:- 40 C to + 85 C 封装 / 箱体:MSOP-10 封装:Tube |
| MAX3945EVKIT | 功能描述:放大器 IC 开发工具 RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX3945EVKIT+ | 功能描述:限幅放大器 Evaluation Kit for the MAX3945 RoHS:否 制造商:Micrel 输入电压范围（最大值）:3.6 V 工作电源电压:3.3 V 电源电流:40 mA 工作温度范围:- 40 C to + 85 C 封装 / 箱体:MSOP-10 封装:Tube |
| 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 |
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