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MAX3841

NOT RECOMMENDED FOR NEW DESIGNS

12.5Gbps, CML, 2 x 2 Crosspoint Switch

Low-Power, 12.5Gbps, CML, 2 x 2 Crosspoint Switch IC

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Up to 12.5Gbps Operation
  • Less Than 10psP-P Deterministic Jitter
  • Less Than 0.7psRMS Random Jitter
  • 1.8V, 2.5V, and 3.3V DC-Coupled CML I/O
  • Independent Output Power-Down
  • 4mm x 4mm Thin QFN Package
  • -40°C to +85°C Operation
  • +3.3V Core Supply
  • 215mW Power Consumption (Excluding Termination Currents)

The MAX3841 is a low-power, 12.5Gbps, 2 x 2 crosspoint switch IC for high-speed serial data loopback, redundancy, and switching applications. The MAX3841 current-mode logic (CML) inputs and outputs have isolated VCC connections to enable DC-coupled interfaces to 1.8V, 2.5V, or 3.3V CML ICs. Fully differential signal paths and Maxim's second-generation SiGe technology provide optimum signal integrity, minimizing jitter, crosstalk, and signal skew. The MAX3841 is ideal for serial OC-192 and 10GbE optical module, line card, switch fabric, and similar applications.

The MAX3841 has 150mVP-P minimum differential input sensitivity and 500mVP-P nominal differential output swing. Unused outputs can be powered down individually to conserve power. In addition to functioning as a 2 x 2 switch, the MAX3841 can be configured as a 2:1 multiplexer, 1:2 buffer, or dual 1:1 buffer. The MAX3841 is available in a 4mm x 4mm 24-pin thin QFN package, and consumes only 215mW with both outputs enabled.

Applications

  • Clock Fanout
  • OC-192, 10GbE Optical Modules
  • OC-192, 10GbE Switch/Line Cards
  • System Redundancy/Self Test
MAX3841
12.5Gbps, CML, 2 x 2 Crosspoint Switch
MAX3841: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Analog Switches & Multiplexers 1
MAX3783
NOT RECOMMENDED FOR NEW DESIGNS 2.7Gbps Dual Mux/Buffer with Loopback
Crosspoint Switches 1
MAX3840
NOT RECOMMENDED FOR NEW DESIGNS +3.3V, 2.7Gbps Dual 2 x 2 Crosspoint Switch
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Tools & Simulations

IBIS Model 1

Evaluation Kits

MAX3841EVKIT

Evaluation Kit for the MAX3841

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Features and Benefits

  • DC-Coupled Evaluation Kit
  • Independent Power-Supply Connections
  • Fully Assembled and Tested
  • SMA Connectors for CML Inputs and Outputs
  • Additional Transmission Lines for Calibration

Product Details

The MAX3841 DC-coupled evaluation kit (EV kit) simplifies evaluation of the MAX3841 12.5Gbps 2 x 2 CML crosspoint switch. The EV kit enables testing of all the MAX3841 functions. SMA connectors with 50Ω controlled-impedance transmission lines to the MAX3841 are provided for all CML inputs and outputs. The board includes additional transmission lines for calibration purposes.
MAX3841EVKIT
Evaluation Kit for the MAX3841

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