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AD8197BASTZ Datasheet(PDF) 1 Page - Analog Devices |
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AD8197BASTZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page 4:1 HDMI/DVI Switch with Equalization AD8197B Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©200 8 Analog Devices, Inc. All rights reserved. FEATURES 4 inputs, 1 output HDMI/DVI links Enables HDMI 1.3-compliant receiver Pin-to-pin compatible with the AD8197A 4 TMDS channels per link Supports 250 Mbps to 2.25 Gbps data rates Supports 25 MHz to 225 MHz pixel clocks Equalized inputs allow use of long HDMI cables (20 meters at 2.25 Gbps) Fully buffered unidirectional inputs/outputs Per input switchable, 50 Ω on-chip terminations Switchable output 50 Ω on-chip terminations Pre-emphasized outputs Low added jitter Single-supply operation (3.3 V) 4 auxiliary channels per link Bidirectional unbuffered inputs/outputs Flexible supply operation (3.3 V to 5 V) HDCP standard compatible Allows switching of DDC bus and 2 additional signals Output disable feature Reduced power dissipation Removable output termination Allows building of larger arrays Two AD8197Bs support HDMI/DVI dual link Standards compatible: HDMI receiver, HDCP, DVI Serial (I2C slave) and parallel control interface 100-lead, 14 mm × 14 mm LQFP, Pb-free package APPLICATIONS Multiple input displays Projectors A/V receivers Set-top boxes Advanced television (HDTV) sets TYPICAL APPLICATION DVD PLAYER GAME CONSOLE SET-TOP BOX MEDIA CENTER HDTV SET HDMI RECEIVER AD8197B 04:20 Figure 1. Typical HDTV Application FUNCTIONAL BLOCK DIAGRAM LOW SPEED UNBUFFERED HIGH SPEED BUFFERED AVCC DVCC AMUXVCC AVEE DVEE VTTO OP[3:0] AUX_COM[3:0] ON[3:0] + – 4 BIDIRECTIONAL I2C_SDA I2C_SCL I2C_ADDR[2:0] VTTI VTTI IP_A[3:0] IN_A[3:0] + – IP_B[3:0] IN_B[3:0] + – IP_C[3:0] IN_C[3:0] + – IP_D[3:0] IN_D[3:0] AUX_C[3:0] AUX_B[3:0] AUX_A[3:0] AUX_D[3:0] + – 4 4 4 4 4 4 4 4 4 4 4 4 EQ SWITCH CORE SWITCH CORE CONTROL LOGIC CONFIG INTERFACE 3 2 2 SERIAL PARALLEL RESET PE 4 4 AD8197B Figure 2. GENERAL DESCRIPTION The AD8197B is an HDMI™/DVI switch featuring equalized TMDS® inputs and pre-emphasized TMDS outputs, ideal for systems with long cable runs. The AD8197B offers individual control of the on/off state of the TMDS input termination resistors via I2C® control. Outputs can be set to a high impedance state to reduce the power dissipation and/or to allow the construction of larger arrays using the wire-OR technique. The AD8197B is provided in a 100-lead LQFP, Pb-free, surface- mount package, specified to operate over the −40°C to +85°C temperature range. PRODUCT HIGHLIGHTS 1. Supports data rates up to 2.25 Gbps, enabling 1080p deep color (12-bit color) HDMI formats and greater than UXGA (1600 × 1200) DVI resolutions. 2. Input cable equalizer enables use of long cables at the input (more than 20 meters of 24 AWG cable at 2.25 Gbps). 3. Auxiliary switch routes a DDC bus and two additional signals for a single-chip, HDMI 1.3 receive-compliant solution. |
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