PS8271 HDMITM/DVI Multiplexer with Lever Shifter
TYPICAL SYSTEM APPLICATION
Provides 2:1 multiplexing for HDMI/DVI signals
Supports AC coupled HDMI/DVI inputs typical in a PC graphics
Output is DC coupled and compliant with HDMI/DVI specifications
Compliant to HDMI 1.3a specification up to 2.25 Gbps
Programmable receiver equalization to compensate for PCB and/or
Low Intra-pair and Inter-pair skews
Supports both DDC active buffering and passive switch for
Automatic Power Down management
Automatic squelch for fail-safe and power management
Programmable TMDS output pre-emphasis and EMI reduction
Separated main data and DDC switching controls for optimized
Single 3.3 V Power Supply
0°C to 85°C Operating Temperature Range
ESD: HBM at 8kV, MM 400V, CDM 2kV
48-pin QFN Halogen free RoHS Package
Switchable graphics in Desktop and Notebook PC motherboards
Notebook docking stations
The PS8271 is a 2:1 HDMI/DVI multiplexer to be used with AC coupled
TMDS Source devices. It is suitable for switchable GPU system
implementations or other applications requiring multiple HDMI/DVI inputs
and a single output. Output is DC coupled and compliant with
The DDC I2C pins are bi-directional and 5V tolerant. HPD pins are
uni-directional, and OUT_HPD is 5 V tolerant. The built-in equalization
can compensate for the PCB losses up to 7dB.
Information furnished by Parade Technologies is believed to be accurate and reliable. However, no
responsibility is assumed by Parade Technologies for its use, nor for any infringements of patents or
other rights of third parties that may result from its use. Specification is subject to change without
notice. No license is granted by implication or otherwise under any patent or patent rights of Parade
Technologies. Trademarks and registered trademarks are the property of their respective owners.
© 2009-2010 Parade Technologies, Inc.
All rights reserved.
Parade Technologies, Inc.
2890 Zanker Road, Suite 102
San Jose, CA 95134
Tel: 408-329-5540 FAX: 408-329-5541
Rev. 1 April 2010