Multiplexers & Crosspoint Switches | NB4N840M

2 x 2 交点开关，双，3.3 V，3.2 Gb / s，带 CML 输出

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概览

NB4N840M 是一款高带宽全带宽双 2 x 2 交点开关，带 CML 输入/输出，适用于 SDH/SONET DWDM 和高速开关等应用。此器件的全差分设计技术用于最大程度减少抖动累积、串扰和信号歪曲，因此适用于双接头和保护沟道开关应用。 内部端接的差分 CML 输入接受交流耦合的 LVPECL（正 ECL）或直接耦合的 CML 信号。因为提供内部 50 Ω 输入和输出端接电阻，所以无需外部组件，接口反射得以最大程度减少。将 50 Ω 电阻外部端接到 VCC 时，16 mA 差分 CML 输出提供匹配的内部 50 Ω 端接和 400 mV 输出摆幅。此器件的单端 LVCMOS/LVTTL SEL 输入控制信号通过交点开关的路由，因此可配置为 1:2 扇出、中继器或 2 x 2 交点开关。该器件采用小型 5mm x 5 mm 32 引脚 QFN 封装。

  • OC-3 to OC-48 Line or System Loopback
  • Redundant Data Fan-out
  • Plugin compatible to the MAX3840 and SY55859L
  • Maximum Input Clock Frequency 2.7 GHz
  • Maximum Input Data Frequency 3.2 Gb/s
  • 225 ps Typical Propagation Delay
  • 80 ps Typical Rise and Fall Times
  • 7 ps Channel to Channel Skew
  • 430 mW Power Consumption
  • < 0.5 ps RMS Jitter
  • 7 ps PeaktoPeak Data Dependent Jitter
  • Power Saving Feature with Disabled Outputs
  • Operating Range: VCC = 3.0 V to 3.6 V with VEE = 0 V
  • CML Output Level (400 mV PeaktoPeak Output), Differential Output
  • These are Pb-Free Devices

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MSL Type

MSL Temp (°C)

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ON Target

Input/Output Ratio

Channels

Input Level

Output Level

VCC Typ (V)

fMax Typ (MHz)

tJitter Typ (ps)

tskew(OO) Max (ps)

tpd Typ (ns)

Reference Price

NB4N840MMNR4G

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Active

CAD Model

Pb

A

H

P

QFN-32

488AM

1

260

REEL

1000

Y

2:1

2

CML

CML

2.5

3200

0.15

25

0.225

Price N/A

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