CBTL04083BBS,518

Overview

The CBTL04083BBS,518 is a 3.3 V, 4 differential channel, 2-to-1 multiplexer/demultiplexer switch designed for PCI Express Generation 3 applications. It switches four 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 ambient temperatures from -40 °C to +85 °C. Key electrical parameters include a typical intra-pair skew of 5 ps, maximum inter-pair skew of 35 ps, and a -3 dB bandwidth of 8.0 GHz. Supply current is typically 2.7 mA in operating mode and reduces to 1 μA in shutdown mode.

Feature Summary

• Supports high-speed signal switching for 8.0 Gbit/s PCIe Gen3 speed
• Features low intra-pair skew and low inter-pair skew for signal integrity
• Includes dual shutdown pins for independent channel power management
• Offers ESD tolerance of 2000 V HBM and 1000 V CDM

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 part number matches the specific package variant required. Confirm the tape width specification if using legacy reel formats, as newer designs should utilize standard configurations. Ensure the component meets the specified temperature range and voltage requirements for the target application environment before finalizing procurement.

Selection Notes

Select the CBTL04083B variant when outputs are located on both sides of the package, allowing placement between two connectors to multiplex differential signals from a controller. This pinout configuration differs from the CBTL04083A, which places input and output pins on opposite sides of the package. Verify that the HVQFN42 package dimensions fit the PCB layout constraints.

Part Context

This component belongs to the CBTL04083 family of high-speed multiplexer switches. The 'B' suffix indicates the specific pinout configuration where outputs are distributed on both sides of the package, suitable for interposing between connectors. The ',518' suffix denotes the 16 mm wide carrier tape packaging format.

Replacement Considerations

The CBTL04083ABS serves as the functional equivalent with an alternative pinout configuration (inputs/outputs on opposite sides). Direct substitution requires verifying PCB footprint compatibility due to the differing pin assignments between the A and B variants.