4:1 HDMI/DVI Switch with Equalization AD8191A FEATURES FUNCTIONAL BLOCK DIAGRAM 4 inputs, one output HDMI/DVI link Pin-to-pin compatible with the AD8197A 4 TMDS channels per link RESET Supports 250 Mbps to 1.65 Gbps data rates PARALLEL AD8191A Supports 25 MHz to 165 MHz pixel clocks SERIAL 2 2 Equalized inputs for operation with long HDMI cables AVCC I2C SDA DVCC CONFIG CONTROL I2C SCL (20 meters at 1080p) 3 INTERFACE LOGIC AMUXVCC I2C ADDR 2:0 Fully buffered unidirectional inputs/outputs AVEE VTTI DVEE Globally switchable, 50 on-chip terminations Pre-emphasized outputs + 4 VTTO IP A 3:0 4 Low added jitter IN A 3:0 4 + IP B 3:0 Single-supply operation (3.3 V) 4 4 + IN B 3:0 OP 3:0 SWITCH 4 + 4 4 auxiliary channels per link CORE ON 3:0 IP C 3:0 PE 4 EQ IN C 3:0 Bidirectional unbuffered inputs/outputs + 4 IP D 3:0 4 Flexible supply operation (3.3 V to 5 V) IN D 3:0 HIGH SPEED BUFFERED HDCP standard compatible Allows switching of DDC bus and 2 additional signals VTTI 4 AUX A 3:0 Output disable feature 4 AUX B 3:0 4 SWITCH 4 AUX COM 3:0 Reduced power dissipation CORE AUX C 3:0 4 AUX D 3:0 Removable output termination LOW SPEED UNBUFFERED Allows building of larger arrays BIDIRECTIONAL Two AD8191As support HDMI/DVI dual link Figure 1. Standards compatible: HDMI receiver, DVI, HDCP 2 Serial (I C slave) and parallel control interface TYPICAL APPLICATION 100-lead, 14 mm 14 mm LQFP, Pb-free package GAME CONSOLE MEDIA CENTER HDTV SET HDMI APPLICATIONS RECEIVER SET-TOP BOX DVD PLAYER Multiple input displays AD8191A 01:18 Projectors A/V receivers Set-top boxes Figure 2. Typical HDTV Application Advanced television (HDTV) sets GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD8191A is an HDMI/DVI switch featuring equalized 1. Supports data rates up to 1.65 Gbps, enabling 1080p HDMI TMDS inputs and pre-emphasized TMDS outputs, ideal for formats and UXGA (1600 1200) DVI resolutions. systems with long cable runs. Outputs can be set to a high 2. Input cable equalizer enables use of long cables at the input impedance state to reduce the power dissipation and/or to allow (more than 20 meters of 24 AWG cable at 1080p). the construction of larger arrays using the wire-OR technique. 3. Auxiliary switch routes a DDC bus and two additional The AD8191A is provided in a 100-lead LQFP, Pb-free, surface- signals for a single-chip, HDMI 1.2a receive-compliant mount package specified to operate over the 40C to +85C solution. temperature range. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PP CH 1:0 PP OTO PP OCL PP EQ PP EN PP PRE 1:0 07013-001 07013-002AD8191A TABLE OF CONTENTS Features .............................................................................................. 1 Switching/Update Delay............................................................ 16 Applications....................................................................................... 1 Parallel Control Interface .............................................................. 17 Functional Block Diagram .............................................................. 1 Serial Interface Configuration Registers ..................................... 18 Typical Application........................................................................... 1 High Speed Device Modes Register......................................... 18 General Description ......................................................................... 1 Auxiliary Device Modes Register............................................. 18 Product Highlights ........................................................................... 1 Receiver Settings Register ......................................................... 19 Revision History ............................................................................... 2 Input Termination Pulse Register 1 and Register 2 ............... 19 Specifications..................................................................................... 3 Receive Equalizer Register 1 and Register 2 ........................... 19 Absolute Maximum Ratings............................................................ 5 Transmitter Settings Register.................................................... 19 Thermal Resistance ...................................................................... 5 Parallel Interface Configuration Registers .................................. 20 Maximum Power Dissipation ..................................................... 5 High Speed Device Modes Register......................................... 20 ESD Caution.................................................................................. 5 Auxiliary Device Modes Register............................................. 20 Pin Configuration and Function Descriptions............................. 6 Receiver Settings Register ......................................................... 20 Typical Performance Characteristics ............................................. 9 Input Termination Pulse Register 1 and Register 2 ............... 21 Theory of Operation ...................................................................... 13 Receive Equalizer Register 1 and Register 2 ........................... 21 Introduction ................................................................................ 13 Transmitter Settings Register.................................................... 21 Input Channels............................................................................ 13 Applications Information .............................................................. 22 Output Channels ........................................................................ 13 Pinout........................................................................................... 22 Auxiliary Switch.......................................................................... 14 Cable Lengths and Equalization............................................... 23 Serial Control Interface.................................................................. 15 PCB Layout Guidelines.............................................................. 23 Reset ............................................................................................. 15 Outline Dimensions ....................................................................... 27 Write Procedure.......................................................................... 15 Ordering Guide .......................................................................... 27 Read Procedure........................................................................... 16 REVISION HISTORY 11/07Revision 0: Initial Version Rev. 0 Page 2 of 28