HD3SS3415 4-Channel High-Performance Differential Switch

1 Features

• Compatible with Multiple Interface Standards Operating up to 12 Gbps Including PCI Express Gen III and USB 3.0
• Wide –3-dB 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
• VDD Operating Range 3.3 V ±10%
• Small 3.5 mm × 9 mm, 42-Pin WQFN Package
• Common Industry Standard Pinout

2 Applications

• Desktop and Notebook PCs
• Server/Storage Area Networks
• PCI Express Backplanes
• Shared I/O Ports

3 Description

The HD3SS3415 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 HD3SS3415 will also support applications that allow connections between one target and two source devices, such as a shared peripheral between two platforms. The HD3SS3415 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 HD3SS3415 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 0°C to 70°C

1. For all available packages, see the orderable addendum at the end of the datasheet.

HD3SS3415 Pinout

HD3SS3415 Switch Flow Through Routing

4 Revision History

Changes from B Revision (August 2015) to C Revision

• Changed the HD3SS3415 Pinout and HD3SS3415 Switch Flow Through Routing imagesGo
• Changed temperature From: industrial temperature range of –40°C to 85°C To: industrial temperature range of 0°C to 70°C in the Overview sectionGo

Changes from A Revision (July 2015) to B Revision

• Changed the Storage temperature MIN value From: 65 To: –65 in the Absolute Maximum Ratings table Go

Changes from * Revision (February 2012 ) to A Revision

• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
• Deleted the word "industrial" from Description section.Go
• Changed the second paragraph of the Description -40 to 0 and 85 to 70°CGo
• Changed T_A spec values from –40°C MIN and 85°C MAX to 0°C MIN and 70°C MAX in the Recommended Operating Conditions table.Go

5 Description continued

The HD3SS3415 is a generic 4-CH high-speed mux/demux type of switch that can be used for routing high-speed signals between two different locations on a circuit board. Although it was designed specifically to address PCI Express Gen III applications, the HD3SS3415 will also support several other high-speed data protocols with a differential amplitude of < 1800 mVpp and a common mode voltage of < 2 V, as with USB 3.0 and DisplayPort 1.2. The one select input (SEL) pin of the device can easily be controlled by an available GPIO pin within a system or from a microcontroller.