CBTL04082A

CBTL04082A; CBTL04082B 3.3 V, 4 differential channel, 2 : 1 multiplexer/demultiplexer switch for PCI Express Gen2 Rev. 1 — 28 February 2011 Product data sheet 1. General description CBTL04082A/B is an 8-to-4 bidirectional differential channel multiplexer/demultiplexer switch for PCI Express Generation 2 (Gen2) applications. The CBTL04082A/B 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 minimized the channel-to-channel skew as well as channel-to-channel crosstalk, as required by the high-speed serial interface. CBTL04082A/B allows expansion of existing high speed ports for extremely low power. The devices’ pinouts are optimized to match different application layouts. CBTL04082A has input and output pins on the opposite of the package, and is suitable for edge connector(s) with different signal sources on the motherboard. CBTL04082B has outputs on both sides of the package, and the device can be placed between two connectors to multiplex differential signals from a controller. Please refer to Section 8 for layout examples. 2. Features and benefits „ 4 bidirectional differential channel, 2 : 1 multiplexer/demultiplexer „ High-speed signal switching for PCIe Gen2 5 Gbit/s „ High bandwidth: 6 GHz at −3 dB „ Insertion loss: ‹ −0.5 dB at 100 MHz ‹ −1.2 dB at 2.5 GHz „ Low intra-pair skew: 5 ps typical „ Low i...