1 Features
• Compatible with DisplayPort 1.2 electrical standard
• 2:1 switching supporting data rates up to 5.4Gbps
• Supports HPD switching
• Wide -3dB differential BW of over 5.4 GHz
• Excellent dynamic characteristics (at 2.7GHz)
– Crosstalk = –50dB
– Isolation = –22dB
– Insertion loss = –1.4dB
– Return loss = –11 dB
– Max bit-bit skew = 4 ps
• VDD operating range 3.3 V ±10%
• Small 5 mm x 5 mm x 1 mm, 48-ball nFBGA
package
• Output enable (oe) pin disables switch to save
power
• Power consumption
– HD3SS212 <10mW (standby <30μW when OE
= L)

2 Applications
• PC & notebooks
• Tablets
• Connected peripherals & printers

3 Description
The HD3SS212 is a high-speed passive switch
capable of switching two full DisplayPort 4 lane ports
from one of two sources to one target location in an
application. For DisplayPort applications that
HD3SS212 also supports switching of the Auxiliary
(AUX) and Hot Plug Detect (HPD) signals. HPD path
is a buffer which requires a 125kΩ pull-down resistor
on the HPDC line.
A typical application would be a mother board that
includes two GPUs that need to drive one DisplayPort
sink. The GPU is selected by the Dx_SEL pin. The
HD3SS212 is offered in a 48-ball bfBGA package and
specified to operate from a single supply voltage of
3.3V over full industrial temperature range of –40°C to
105°C.