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 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 operating range: 1.8 V 10 % DD 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/sCBTU04082 NXP Semiconductors 1.8 V, wide bandwidth, 4 differential channel, 2 : 1 MUX/deMUX switch 4. Ordering information Table 1. Ordering information Type number Package Name Description Version CBTU04082BS HVQFN42 plastic thermal enhanced very thin quad flat package no leads SOT1144-1 42 terminals body 3.5 9 0.85 mm 5. Functional diagram A0 P B0 P A0 N B0 N A1 P B1 P A1 N B1 N C0 P C0 N C1 P C1 N A2 P B2 P A2 N B2 N A3 P B3 P A3 N B3 N C2 P C2 N C3 P C3 N SEL 002aae642 Fig 1. Functional diagram of CBTU04082 CBTU04082 All information provided in this document is subject to legal disclaimers. NXP B.V. 2010. All rights reserved. Product data sheet Rev. 2 13 July 2010 2 of 15