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What is AD8197A?

This electronic component, produced by the manufacturer "Analog Devices", performs the same function as "4:1 HDMI/DVI Switch".


AD8197A Datasheet PDF - Analog Devices

Part Number AD8197A
Description 4:1 HDMI/DVI Switch
Manufacturers Analog Devices 
Logo Analog Devices Logo 


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4:1 HDMI/DVI Switch with Equalization
AD8197A
FEATURES
4 inputs, 1 output HDMI/DVI link
Enables HDMI 1.3-compliant receiver
Pin-to-pin compatible with the AD8191A
4 TMDS channels per link
Supports 250 Mbps to 2.25 Gbps data rates
Supports 25 MHz to 225 MHz pixel clocks
www.DataSheet4U.cEoqmualized inputs for operation with long HDMI cables
(20 meters at 2.25 Gbps)
Fully buffered unidirectional inputs/outputs
Globally switchable, 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
2 AD8197A devices 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
GENERAL DESCRIPTION
The AD8197A is an HDMI™/DVI switch featuring equalized
TMDS® inputs and pre-emphasized TMDS outputs, ideal for
systems with long cable runs. 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 AD8197A is provided in a 100-lead LQFP, Pb-free, surface-
mount package, specified to operate over the −40°C to +85°C
temperature range.
FUNCTIONAL BLOCK DIAGRAM
PARALLEL
SERIAL
2
2
I2C_SDA
I2C_SCL
I2C_ADDR[2:0]
VTTI
3
CONFIG
INTERFACE
RESET
AD8197A
CONTROL
LOGIC
AVCC
DVCC
AMUXVCC
AVEE
DVEE
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]
4
4
4
4
4
4 EQ
4
4
SWITCH
CORE
PE
4
4
HIGH SPEED BUFFERED
VTTO
+ OP[3:0]
ON[3:0]
VTTI
AUX_A[3:0]
AUX_B[3:0]
AUX_C[3:0]
AUX_D[3:0]
4
4
4
SWITCH
CORE
4
4
LOW SPEED UNBUFFERED
BIDIRECTIONAL
AUX_COM[3:0]
Figure 1.
TYPICAL APPLICATION
MEDIA CENTER
HDTV SET
GAME CONSOLE
SET-TOP BOX
HDMI
RECEIVER
AD8197A
DVD PLAYER
04:20
Figure 2. Typical HDTV Application
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.
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
rights of third parties that may result from its use. Specifications subject to change without notice. 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
©2007 Analog Devices, Inc. All rights reserved.

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AD8197A equivalent
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
AVCC to AVEE
DVCC to DVEE
DVEE to AVEE
VTTI
VTTO
AMUXVCC
Internal Power Dissipation
High Speed Input Voltage
www.DataSheeHt4igUh.cSopmeed Differential
Input Voltage
Low Speed Input Voltage
I2C and Parallel Logic
Input Voltage
Storage Temperature
Range
Operating Temperature
Range
Junction Temperature
Rating
3.7 V
3.7 V
±0.3 V
AVCC + 0.6 V
AVCC + 0.6 V
5.5 V
2.2 W
AVCC − 1.4 V < VIN < AVCC + 0.6 V
2.0 V
DVEE − 0.3 V < VIN < AMUXVCC + 0.6 V
DVEE − 0.3 V < VIN < DVCC + 0.6 V
−65°C to +125°C
−40°C to +85°C
150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
AD8197A
THERMAL RESISTANCE
θJA is specified for the worst-case conditions: a device soldered
in a 4-layer JEDEC circuit board for surface-mount packages.
θJC is specified for no airflow.
Table 3. Thermal Resistance
Package Type
θJA θJC Unit
100-Lead LQFP
56 19 °C/W
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the AD8197A
is limited by the associated rise in junction temperature. The
maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the
plastic, approximately 150°C. Temporarily exceeding this limit
may cause a shift in parametric performance due to a change in
the stresses exerted on the die by the package.
Exceeding a junction temperature of 175°C for an extended
period can result in device failure. To ensure proper operation, it
is necessary to observe the maximum power rating as determined
by the coefficients in Table 3.
ESD CAUTION
Rev. 0 | Page 5 of 28


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AD8197A datasheet


1. 4:1 HDMI/DVI Switch, LQFP 100

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