2:1 HDMI/DVI Switch with Equalization AD8190 FEATURES FUNCTIONAL BLOCK DIAGRAM RESET Two inputs, one output HDMI/DVI links SERIAL INTERFACE Enables HDMI 1.2a-compliant receiver AVCC AD8190 Four TMDS channels per link I2C SDA DVCC CONFIG CONTROL I2C SCL AMUXVCC INTERFACE LOGIC Supports 250 Mbps to 1.65 Gbps data rates I2C ADDR AVEE DVEE Supports 25 MHz to 165 MHz pixel clocks VTTI Equalized inputs for operation with long HDMI cables VTTO (20 meters at 1080p) 4 IP A 3:0 + Fully buffered unidirectional inputs/outputs IN A 3:0 4 4 SWITCH OP 3:0 CORE Globally switchable 50 on-chip terminations ON 3:0 4 EQ PE 4 IP B 3:0 Pre-emphasized outputs IN B 3:0 4 Low added jitter HIGH SPEED BUFFERED Single-supply operation (3.3 V) VTTI 4 Four auxiliary channels per link AUX A 3:0 4 SWITCH AUX COM 3:0 4 CORE Bidirectional unbuffered inputs/outputs AUX B 3:0 LOW SPEED UNBUFFERED Flexible supply operation (3.3 V to 5 V) BIDIRECTIONAL HDCP standard compatible Allows switching of DDC bus and two additional signals Figure 1. Output disable feature Reduced power dissipation TYPICAL APPLICATION Output termination removal HDTV SET Two AD8190s support HDMI/DVI dual-link HDMI Standards compliant: HDMI receiver, HDCP, DVI RECEIVER 2 SET-TOP BOX DVD PLAYER Serial (I C slave) control interface DVD 01:18 56-lead, 8 mm x 8 mm, LFCSP, Pb-free package AD8190 APPLICATIONS Figure 2. Typical AD8190 Application for HDTV Sets Multiple input displays Projectors A/V receivers Set-top boxes Advanced television (HDTV) sets GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD8190 is an HDMI/DVI switch featuring equalized 1. Supports data rates up to 1.65 Gbps, enabling UXGA TMDS inputs and pre-emphasized TMDS outputs, ideal for (1600 1200) DVI resolutions and 1080p HDMI formats. systems with long cable runs. Outputs can be set to a high 2. Input cable equalizer enables use of long cables at the impedance state to reduce the power dissipation and/or allow input (more than 20 meters of 24 AWG cable at 1080p). the construction of larger arrays using the wire-OR technique. 3. Auxiliary switch allows routing of the DDC bus and two The AD8190 is provided in a space saving, 56-lead, LFCSP, additional single-ended signals for a single chip, fully surface-mount, Pb-free, plastic package and is specified to HDMI 1.2a receive-compliant solution. operate over the 40C to +85C 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. 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Trademarks and registered trademarks are the property of their respective owners. 06122-002 06122-001 + +AD8190 TABLE OF CONTENTS Features .............................................................................................. 1 Serial Control Interface ................................................................. 14 Applications....................................................................................... 1 Reset ............................................................................................. 14 Functional Block Diagram .............................................................. 1 Write Procedure.......................................................................... 14 Typical Application........................................................................... 1 Read Procedure........................................................................... 15 General Description ......................................................................... 1 Switching/Update Delay............................................................ 15 Product Highlights ........................................................................... 1 Configuration Registers................................................................. 16 Revision History ............................................................................... 2 High Speed Device Modes Register ......................................... 16 Specifications..................................................................................... 3 Auxiliary Device Modes Register............................................. 16 Absolute Maximum Ratings............................................................ 5 Receiver Settings Register ......................................................... 17 Thermal Resistance ...................................................................... 5 Input Termination Pulse Register ............................................ 17 Maximum Power Dissipation ..................................................... 5 Receive Equalizer Register ........................................................ 17 ESD Caution.................................................................................. 5 Transmitter Settings Register.................................................... 17 Pin Configuration and Function Descriptions............................. 6 Application Notes ........................................................................... 18 Typical Performance Characteristics ............................................. 8 Pinout........................................................................................... 18 Theory of Operation ...................................................................... 12 Cable Lengths and Equalization............................................... 19 Introduction ................................................................................ 12 The AD8190 as a Single-Channel Buffer ................................ 19 Input Channels............................................................................ 12 PCB Layout Guidelines.............................................................. 19 Output Channels ........................................................................ 12 Outline Dimensions ....................................................................... 23 Switching Mode .......................................................................... 13 Ordering Guide .......................................................................... 23 Auxiliary Lines Switching.......................................................... 13 REVISION HISTORY 7/06Revision 0: Initial Version Rev. 0 Page 2 of 24