HD3SS212
HD3SS212
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SLAS822D – DECEMBER 2011 – REVISED DECEMBER 2020
SLAS822D – DECEMBER 2011 – REVISED DECEMBER 2020
HD3SS212 5.4Gbps DisplayPort 1.2 2-to-1 Differential Switch
1 Features
3 Description
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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
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.
– Isolation = –22dB
– Insertion loss = –1.4dB
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.
– Return loss = –11 dB
– Max bit-bit skew = 4 ps
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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
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Device Information (1)
Power consumption
PART NUMBER
PACKAGE
BODY SIZE (NOM)
– HD3SS212 <10mW (standby <30µW when OE
= L)
HD3SS212
nFBGA (48)
5.00 mm x 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
2 Applications
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PC & notebooks
Tablets
Connected peripherals & printers
VDD
4
DAz (p)
SEL = 0
4
DAz (n)
4
(p)
(n)
DCz
DCz
(z= 0,1,2or3)
4
4
4
DBz(p)
DBz(n)
SEL = 1
SEL
Dx_SEL
SEL
HPDA
HPDB
SEL = 0
HPDC
125kW
SEL = 1
SEL
AUXA(p)
AUXA(n)
SEL = 0
(p)
AUXC
AUXC
(n)
AUXB(p)
AUXB(n)
SEL = 1
OE
HD3SS212
GND
Functional Block Diagram
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Copyright © 2020 Texas Instruments Incorporated
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