General description
CBTU04082 is an 8-to-4 differential channel multiplexer/ demultiplexer switch. The
CBTU04082 can switch four differential signals to one of two locations. Using a unique
design technique, NXP has minimized the impedance of the switch such that the
attenuation observed through the switch is negligible, and also minimizes the
channel-to-channel skew as well as channel-to-channel crosstalk, as required by the
high-speed serial interface.

Features and benefits
- 4 differential channel, 2 : 1 multiplexer/demultiplexer
- High-speed signal switching; 5.0 Gbit/s
- Low intra-pair skew: 10 ps maximum (between positive and negative bits)
- Low crosstalk: −23 dB at 3 GHz
- Low off-state isolation: −23 dB at 3 GHz
- VDD operating range: 1.8 V ± 10 %
- ESD tolerance:
- 6 kV HBM
- 1 kV CDM
- Low inter-pair skew: 35 ps maximum
- Fit, form and function compatible to PI2PCIE2412
- HVQFN42 package

Applications
- Routing of high-speed differential signals with low signal attenuation
- PCIe Gen2
- DisplayPort 1.1a
- LVDS
- SATA 3 Gbit/s