The CBTU0808 is a convenient and reliable path switch for PCI Express signals
The Philips CBTU0808 is a dual lane PCI Express port multiplexer designed to provide convenient and reliable path switching for PCI Express signals. It is organized as two PCI Express lanes, each consisting of a Transmit and Receive channel with four ports per channel on both the source and destination sides.
The device utilizes high-bandwidth switch elements controlled by internal logic via CMOS inputs CTRLO and CTRL1 to configure connections in three modes: dual through, single cross, or all ports isolated. It is packaged in a 48-ball TFBGA package with a thin profile suitable for fine-pitch board technology.
| Supply Voltage | 1.7 - 1.9 V |
|---|---|
| Bandwidth | > 1 GHz |
| OFF-feedthrough | < -35 dB at 1.25 GHz |
| Channel Crosstalk | < -35 dB at 1.25 GHz |
| ESD Resilience (HBM) | 2 kV |
| Package Type | 48-ball TFBGA |
The device supports source A and B to destinations A and B respectively; source A to destination B (remaining ports isolated); or all ports isolated.
Switch positions are controlled by internal control logic using CMOS inputs CTRLO for lane 0 and CTRL1 for lane 1.
The device operates in free air between 0°C and +85°C.