1FEATURES

• Ideal for DockPort Applications

– Bi-Directional 2:1 Switch for USB 2.0

(HS/FS/LS) and HPD Signals

– Bi-Directional 2:1 Switch for SuperSpeed

USB and DisplayPort Signals

– Integrated DockPort Controller Manages

DockPort Detection, Signal Switching and

Power Switching

• Supports Host-and Dock-side Applications

• VCC Operating Range 3.3V ± 10%

• SuperSpeed USB I/O Supports Common Mode

Voltage from 0V to 2.2V

• USB 2.0 I/O Supports Signal Up to 3.6V

• Wide –3dB Differential BW on High-bandwidth

Path of over 6 GHz

• Excellent High-bandwidth Path Dynamic

Characteristics on (at 2.5GHz)

– Crosstalk = –39dB

– Isolation = –22dB

– Insertion Loss = –1.2dB

– Return Loss = 12 dB

– Max Bit-Bit Skew = 8 ps

• 5mm x11mm, 56-Pin WQFN Package (RHU)

• ESD

– HBM: 2000V

– CDM: 500V

APPLICATIONS

• Desktop PCs

• Notebook PCs

• Tablets

• Docking Station

DESCRIPTION

The HD3SS2521 is an integrated DockPort switch solution. It provides independent 2:1 passive switching for the

SuperSpeed USB and Display Port signals as well as for the USB 2.0 (HS/FS/LS) and I2C necessary to support

DockPort applications. In addition, a firmware upgradable integrated DockPort controller is provided to manage

host and dock side DockPort detection, signal switch and power configuration.

The HD3SS2521 is offered in 56-pin WQFN package and is specified to operate from a single supply voltage of

3.3V over the temperature range of 0°C to 70°C .