HD3SS212
www.ti.com
SLAS822 A –DECEMBER 2011–REVISED MARCH 2012
5.4Gbps DisplayPort 1.2 2-to-1 Differential Switch
Check for Samples: HD3SS212
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FEATURES
APPLICATIONS
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Compatible with DisplayPort 1.2 Electrical
Standard
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Motherboard Applications Needing DP and PCI
Express
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2:1 Switching Supporting Data Rates up to
5.4Gbps
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•
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Desktop PCs
Notebook PCs
Docking
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•
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Supports HPD Switching
Wide -3dB Differential BW of over 5.4 GHz
Excellent Dynamic Characteristics (at 2.7GHz)
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2
3
4
5
6
7
8
9
A
B
C
D
E
F
–
–
–
–
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Crosstalk = –50dB
Isolation = –22dB
Insertion Loss = –1.4dB
Return Loss = –11 dB
Max Bit-Bit Skew = 4 ps
Top View
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VDD Operating Range 3.3 V ±10%
48-Ball ZQE
u*BGA
Package
Small 5 mm x 5 mm x 1 mm, 48-Ball u*BGA
Package
5 mm x 5 mm
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Output Enable (OE) Pin Disables Switch to
Save Power
G
H
J
Power Consumption
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HD3SS212 <10mW (Standby <30µW when
OE = L)
GND
VDD
Signal Pin
Figure 1. HD3SS212 Ball Map
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 BGA package and specified to
operate from a single supply voltage of 3.3V over full industrial temperature range of –40°C to 105°C.
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PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.