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NXP Semiconductors CBTU02044 High-Speed Differential 1-to-2 Switch

NXP Semiconductors CBTU02044 High-Speed Differential 1-to-2 Switch is optimized to interface with PCIe4.0 for server and client applications. This high-performance switch IC can also be used for high-speed interfaces such as PCIe-Gen4, MIPI, DP1.4, and DDR. The CBTU02044 also functions as a 2-to-1 MUX by selecting 1 (Port A) as output out of one of the two differential ports, either Port B or C. The NXP CBTU02044 is available in a 1.6mm x 2.4mm x 0.5mm HUQFN16 package, ideal for space-constrained applications.

Features

  • Optimized high-speed signal integrity
  • Crosstalk minimized to meet stringent PCIe4.0 requirement
  • Two-differential channels 1-to-2 switch/2-to-1 mux
    • Low insertion loss (typical)
      • 0.56dB at 100MHz
      • 1.1dB at 5GHz
      • 1.5dB at 8GHz
    • Low off-state isolation
      • -70dB at 100MHz
      • -23dB at 5GHz
      • -18dB at 8GHz
    • Low return loss (typical)
      • 21dB at 2.5GHz
      • 18dB at 5GHz
      • 15dB at 8GHz
    • 10Ω (typical) low ON-state resistance
    • 17GHz (typical) 3dB bandwidth
    • <-50dB at 8GHz DDNEXT
    • <-48dB at 8GHz DDFEXT
    • 0V to 2V common mode input voltage (VIC)
    • <1.6V differential input voltage (VID)
    • <4ps intra-pair skew 
  • 1.62V to 3.63V power supply voltage range (VDD)
  • Low current consumption
    • 200μA (typical) for active mode
    • 3μA (typical) for power saving
  • CMOS SEL and XSD pins
  • Back current protection on all I/O pins of these switches
  • Patent-pending high-performance analog pass-gate technology
  • All channels support rail-to-rail input voltage (up to 2.4V)
  • Electrostatic Discharge (ESD) ratings
    • 2000V Human Body Model (HBM)
    • 1000V Charged-Device Model (CDM)
  • -40°C to +85°C operating temperature range
  • 1.6mm x 2.4mm x 0.5mm HUQFN16 package with 0.4mm pitch
  • Halogen-free and RoHS compliant

Applications

  • Enterprise servers
  • Data centers
  • PCIe Gen 4 storage
  • Base stations

Datasheets

Application Notes

Block Diagram

Block Diagram - NXP Semiconductors CBTU02044 High-Speed Differential 1-to-2 Switch

Application Circuit (2-to-1)

Application Circuit Diagram - NXP Semiconductors CBTU02044 High-Speed Differential 1-to-2 Switch

Application Circuit (1-to-2)

Application Circuit Diagram - NXP Semiconductors CBTU02044 High-Speed Differential 1-to-2 Switch

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Published: 2020-07-22 | Updated: 2024-10-25