CBTL02043BBQ,115

Overview

The CBTL02043BBQ,115 is a 3.3 V, two differential channel, 2-to-1 multiplexer/demultiplexer switch designed for USB 3.1 and PCI Express Generation 3 applications. It switches two differential signals to one of two locations with negligible attenuation and minimized skew. The device operates within a supply voltage range of 3.0 V to 3.6 V and supports an ambient temperature range from -40 °C to +85 °C. Key electrical characteristics include a typical insertion loss of -0.5 dB at 100 MHz and -1.3 dB at 4.0 GHz when active. It features a shutdown pin (XSD) that reduces standby current to less than 1 µA. ESD tolerance is rated at 2000 V HBM and 1000 V CDM.

Feature Summary

• Provides bidirectional switching between two differential channels for high-speed serial interfaces
• Minimizes impedance, channel-to-channel skew, and crosstalk for signal integrity
• Includes a shutdown pin to minimize power consumption in inactive states
• Offers robust electrostatic discharge protection for reliable operation

Applications

• Routing of high-speed differential signals for PCIe Gen3
• Signal routing for DisplayPort 1.2 interfaces
• Expansion of existing high-speed ports for USB 3.1
• SATA 6 Gbit/s signal switching

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select the CBTL02043BBQ variant when the application requires outputs on both sides of the package, allowing the device to be placed between two connectors to multiplex differential signals from a controller. This pinout configuration differs from the CBTL02043ABQ, which places input and output pins on opposite sides of the package for edge connector layouts. Ensure the PCB design accommodates the DHVQFN20 package dimensions and thermal pad requirements for proper heat conduction.

Part Context

The CBTL02043BBQ belongs to the CBTL02043A/B family of high-speed signal switches manufactured by NXP Semiconductors. These devices are engineered to expand existing high-speed ports while maintaining extremely low power consumption. The family includes variants with different pin configurations to suit various motherboard layouts, ensuring flexibility in system design for multi-port connectivity solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.