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The PI3DBS16222 is a differential exchange switch featuring pass-through pinout. It supports 2x2 exchange switch operating at 20Gbps, enables applications in PCI Express Gen 4, USB 3.1 Gen 2, Thunderbolt 3, 10G BASE-KR.

With the select control input low, Port A connects to port B, and port C connects to port D for an 8-channel differential pass-though. When the select control input is high Port A connects to port D, and port B connects to port C.


  • Server/Storage (PCIe Gen 4)
  • PC/Notebook/Tablet/AIO (USB 3.1 Gen 2, Thunderbolt 3)
  • Embedded (USB 3.1 Gen 2)
  • Network Routers and Switch (10G BASE-KR)


  • Four Differential Channel 2x2 Exchange Switch
  • Data Rate 20Gbps Performance; Enable applications in PCI Express Gen 4, USB 3.1 Gen 2, ThunderboltTM 3, 10G BASEKR
  • Bidirectional Operation
  • Low Bit-to-Bit Skew: 10ps (Between ± Signals)
  • Low Crosstalk:
    • -30dB @ 4.0GHz (8Gbps)
    • -19dB @ 8.0GHz (16Gbps)
  • Low Insertion Loss:
    • -1.0dB @ 4.0GHz (8Gbps)
    • -1.5dB @ 8.0GHz (16Gbps)
    • -2.0dB @ 10 GHz
  • VDD Operating Range: 3.3V ± 10%
  • Industrial Temperature Range: -40°C to 85°C
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • Packaging (Pb-free & Green):
    • 30-contact, TQFN (ZL30), 2.5mm × 4.5mm
    • 24-contact, X1QFN(XEA24), 2mm × 4mm

Product Specifications

Product Parameters

Configuration Mux, 2:2: 2-Differential Channel
Differential Channels 2
Lanes 2
Type Crossbar
Voltage 3.3

Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
PI3DBS16222XEAEX Active X1-QFN2040-24 GREEN 3500 T&R Request Sample
PI3DBS16222ZLEX Active W-QFN2545-30 GREEN 3500 T&R Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free