GENERAL DESCRIPTION

The SGM7300A is a differential 2-channel switch which

can be used for both multiplexer (MUX) and

demultiplexer (DEMUX) configurations. The device can

be used for PCI Express Generation 3, USB 3.1 and

other high-speed serial interface applications.

The product can switch dual differential signals to 1 of 2

locations. The SGM7300A minimizes the impedance of

the switch so that the attenuation observed through the

switch can be ignored and minimizes the inter-channel

skew and inter-channel crosstalk required for

high-speed serial interfaces. The SGM7300A can

achieve extremely low power consumption by

extending existing high-speed ports. In order to achieve

high ESD tolerance, the ESD protection circuits are

integrated into ICs.

The SGM7300A optimizes the pins to match the

product to different application layouts. It is suitable for

edge connectors with different signal sources on the

motherboard, with input and output pins on opposite

sides of the package. When SGM7300A is in power-off

state, all I/O pins’ impedance is 20kΩ. When VDD is

powered on, the ports that switched off are low

impedance, approximately 4Ω, the two port ends that

switched on are approximately 13kΩ.

No external DC blocking capacitors are required on the

RF paths as long as no external DC voltage is applied,

which can save PCB area and cost.

The SGM7300A is available in a Green TLGA-2.5×4.5

-20L package.

FEATURES

● High Bandwidth: 9GHz

● Support 10Gbps Signal Transmission

● Support USB 3.1 Gen1 and Gen2 Data Rates

● Low Insertion Loss:

? -0.33dB at 0.1GHz

? -0.85dB at 4.0GHz

● Low Off-State Isolation: -22dB at 4.0GHz

● Low Return Loss: -20dB at 4.0GHz

● Available in a Green TLGA-2.5×4.5-20L Package

APPLICATIONS

USB 3.1

PCI Express Generation 3

DisplayPort 1.2

SATA 6Gbit/s

High-Speed Differential Signals Routing