1. 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.
2. 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
V
DD
operating range: 1.8 V ± 10 %
ESD tolerance:
6kV HBM
1 kV CDM
Low inter-pair skew: 35 ps maximum
Fit, form and function compatible to PI2PCIE2412
HVQFN42 package
3. Applications
Routing of high-speed differential signals with low signal attenuation
PCIe Gen2
DisplayPort 1.1a
LVDS
SATA 3 Gbit/s
CBTU04082
1.8 V, wide bandwidth, 4 differential channel,
2 : 1 multiplexer/demultiplexer switch with single enable
Rev. 2 — 13 July 2010 Product data sheet
