CBTL04083BBS,558

Overview

The CBTL04083BBS,558 is a 3.3 V, 4 differential channel, 2:1 multiplexer/demultiplexer switch designed for PCI Express Gen3 applications. It switches four differential signals to one of two locations with negligible attenuation and minimized skew. The device supports high-speed signal switching up to 8.0 Gbit/s. Key electrical parameters include a -3 dB bandwidth of 8.0 GHz, low intra-pair skew (5 ps typical), and low inter-pair skew (35 ps maximum). It operates within a VDD range of 3.0 V to 3.6 V and an ambient temperature of -40 °C to +85 °C. The component is housed in an HVQFN42 package.

Feature Summary

• Supports high-speed signal switching for 8.0 Gbit/s PCIe Gen3 speed
• Features dual shutdown pins for independent channel power management
• Provides low intra-pair and inter-pair skew for signal integrity
• Offers low crosstalk and insertion loss characteristics

Applications

• Routing of high-speed differential signals for PCIe Gen3
• DisplayPort 1.2 signal routing
• USB 3.0 signal routing
• SATA 6 Gbit/s signal routing

Procurement Notes

Verify the ordering suffix '558' corresponds to the 24 mm wide carrier tape format as specified in the datasheet. Note that this specific tape width configuration is marked as not recommended for new designs. Confirm the package type is HVQFN42 and the operating temperature range meets the application requirements of -40 °C to +85 °C before procurement.

Selection Notes

Select the CBTL04083B variant over the A variant when the application layout requires outputs on both sides of the package, allowing placement between two connectors. Ensure the design accommodates the HVQFN42 package dimensions and thermal pad requirements. Verify that the control logic voltage levels are compatible with the SEL, XSD01, and XSD23 pin specifications.

Part Context

This component belongs to the CBTL04083A/B family of high-speed multiplexer switches from NXP Semiconductors. It is specifically engineered for PCI Express Generation 3 environments. The B variant distinguishes itself through its pinout optimization for placing the device between two connectors, unlike the A variant which positions input and output pins on opposite sides of the package.

Replacement Considerations

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