MAX4889B

PRODUCTION

2.5/5.0/8.0Gbps PCIe Passive Switch

High-Speed PCI Express Passive Switches Enable Gen II Switching with Low Insertion Loss and Superior Return Loss

Data Sheet (Rev. 2) Product Selection Table
Part Models
2
1ku List Price
Starting From $3.83
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Part Details

  • Single +3.3V Power-Supply Voltage
  • Support PCIe Gen I, Gen II, and Gen III Data Rates
  • Supports SAS I, SAS II, and SAS 6.0Gbps (MAX4889C)
  • Superior Return Loss
    • Better than -22dB (typ) at 4.0GHz
  • Excellent Return Loss
    • Better than -1.2dB (typ) at 4.0GHz
  • Small 3.5mm x 9.0mm, 42-Pin TQFN Package
  • Industry-Standard Pinouts
MAX4889B
2.5/5.0/8.0Gbps PCIe Passive Switch
MAX4889B, MAX4889C: Functional Diagram
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

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Evaluation Kits

MAX4889BEVKIT

Evaluation Kit for the MAX4889B and MAX4889C

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Features and Benefits

  • Eye Diagram Test Circuit with SMA Input/Output
  • Calibration Trace Load and No Load
  • Lead(Pb)-Free and RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX4889B evaluation kit (EV kit) provides a proven design to evaluate the MAX4889B PCI Express® (PCIe) Gen II 5.0Gbps passive switch. The MAX4889B is a quad double-pole/double-throw (4 x DPDT) switch ideal for switching four half lanes of PCIe data between two destinations. The MAX4889B EV kit is used for critical tests (e.g., eye diagrams and s-parameter measurements such as insertion loss, return loss, and off-isolation).

The MAX4889B EV kit PCB comes with a MAX4889BETO+ installed. The MAX4889BETO+ is available in a lead(Pb)-free 3.5mm x 9.0mm, 42-pin TQFN package with an exposed pad.

The MAX4889B EV kit can also be used to evaluate the MAX4889C. Contact the factory for a free sample of the pin-compatible MAX4889CETO+.

Applications

  • Desktop PCs
  • Notebook PCs
  • Servers
  • Video Graphics Cards—SLI® (Scaled Link Interface) and CrossFire™
MAX4889BEVKIT
Evaluation Kit for the MAX4889B and MAX4889C

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