HD3SS3412RUAT UART Interface IC PCI Interface IC 4 Ch Diff Switch

HD3SS3412RUAT UART Interface IC PCI Interface IC 4 Ch Diff Switch

1 Features

• Compatible With Multiple Interface Standards Operating up to 12 Gbps Including PCI Express Gen III and USB 3.0

• Wide –3dB Differential BW of over 8 GHz

• Excellent Dynamic Characteristics (at 4 GHz)

  • – Crosstalk = –35 dB

  • – Off Isolation = –19 dB

  • – Insertion Loss = –1.5 dB

  • – Return Loss = –11 dB

• Bidirectional "MUX/De-MUX" Type Differential Switch

• VDD Operating Range 3.3 V ±10%

• Small 3.5-mm × 9.0-mm, 42-Pin WQFN Package

• Common Industry Standard Pinout

• Supports XAUI and SGMII

2 Applications

• Desktop and Notebook PCs

• Server and Storage Area Networks

• PCI Express Backplanes

• Shared I/O Ports

The HD3SS3412 device is a high-speed passive switch capable of switching four differential channels, including applications such as two full PCI Express x1 lanes from one source to one of two target locations in a PC/server application. With its bidirectional capability the HD3SS3412 also supports applications that allow connections between one target and two source devices, such as a shared peripheral between two platforms. The HD3SS3412 has a single control line (SEL pin) which can be used to control the signal path between Port A and either Port B or Port C.

The HD3SS3412 is offered in an industry standard 42-pin WQFN package available in a common footprint shared by several other vendors. The device is specified to operate from a single supply voltage of 3.3 V over the full temperature range of -40°C to 85oC.