2:1 HDMI/DVI Switch with Equalization AD8196 FEATURES FUNCTIONAL BLOCK DIAGRAM RESET Two inputs, one output HDMI/DVI links SERIAL INTERFACE Enables HDMI 1.3-compliant receiver AVCC AD8196 Pin-to-pin compatible with the AD8190 I2C SDA DVCC CONFIG CONTROL I2C SCL AMUXVCC INTERFACE LOGIC Four TMDS channels per link I2C ADDR AVEE Supports 250 Mbps to 2.25 Gbps data rates DVEE VTTI Supports 25 MHz to 225 MHz pixel clocks VTTO Equalized inputs for operation with long HDMI cables 4 IP A 3:0 (20 meters at 2.25 Gbps) + IN A 3:0 4 4 SWITCH OP 3:0 CORE Fully buffered unidirectional inputs/outputs ON 3:0 4 EQ PE 4 IP B 3:0 Globally switchable, 50 on-chip terminations IN B 3:0 4 Pre-emphasized outputs HIGH SPEED BUFFERED Low added jitter VTTI Single-supply operation (3.3 V) 4 AUX A 3:0 4 SWITCH AUX COM 3:0 Four auxiliary channels per link 4 CORE AUX B 3:0 Bidirectional unbuffered inputs/outputs LOW SPEED UNBUFFERED Flexible supply operation (3.3 V to 5 V) BIDIRECTIONAL HDCP standard compatible Figure 1. Allows switching of DDC bus and two additional signals Output disable feature Reduced power dissipation TYPICAL APPLICATION Output termination removal HDTV SET Two AD8196s support HDMI/DVI dual-link HDMI RECEIVER Standards compliant: HDMI receiver, HDCP, DVI SET-TOP BOX DVD PLAYER 2 Serial (I C slave) control interface 01:18 AD8196 56-lead, 8 mm x 8 mm, LFCSP, Pb-free package Figure 2. Typical AD8196 Application for HDTV Sets APPLICATIONS Multiple input displays Projectors A/V receivers Set-top boxes Advanced television (HDTV) sets GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD8196 is an HDMI/DVI switch featuring equalized 1. Supports data rates up to 2.25 Gbps, enabling greater than TMDS inputs and pre-emphasized TMDS outputs, ideal for 1080p deep color (12-bit color) HDMI formats, and greater systems with long cable runs. Outputs can be set to a high than UXGA (1600 1200) DVI resolutions. impedance state to reduce the power dissipation and/or allow 2. Input cable equalizer enables use of long cables at the the construction of larger arrays using the wire-OR technique. input (more than 20 meters of 24 AWG cable at 2.25 Gbps). The AD8196 is provided in a space-saving, 56-lead, LFCSP, 3. Auxiliary switch allows routing of the DDC bus and two surface-mount, Pb-free, plastic package and is specified to additional single-ended signals for a single chip, HDMI 1.3 operate over the 40C to +85C temperature range. receive-compliant solution. 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. 06470-002 06470-001 + +AD8196 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 AD8196 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 1/07Revision 0: Initial Version Rev. 0 Page 2 of 24