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3.3V, PCI Express 3.0, USB 3.1 4-Channel Analog Differential Switch


Package | PIN: RUA | 42
Temp: C (0 to 70)
Carrier: Cut Tape
Qty Price
1-9 $2.25
10-24 $2.02
25-99 $1.87
100-249 $1.63
250-499 $1.51
500-749 $1.26
750-999 $1.04
1000+ $0.95


  • 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 = –19dB
    • 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

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Texas Instruments  HD3SS3412RUAR

The HD3SS3412 device is a high-speed passive switch capable of switching fourdifferential channels, including applications such as two full PCI Express x1 lanes from one sourceto one of two target locations in a PC/server application. With its bidirectional capability theHD3SS3412 also supports applications that allow connections between one target and two sourcedevices, 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 PortC.

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

The HD3SS3412 is a generic 4-CH high-speed MUX/de-MUX type of switch that can be used forrouting high-speed signals between two different locations on a circuit board. Although it wasdesigned specifically to address PCI Express Gen III applications, the HD3SS3412 will also supportseveral other high-speed data protocols with a differential amplitude of <1800 mVpp and acommon-mode voltage of < 2 V, as with USB 3.0 and DisplayPort 1.2. The device’s one select input(SEL) pin can easily be controlled by an available GPIO pin within a system or from amicrocontroller.