AD8190_15 Datasheet, PDF (1/24 Pages) Analog Devices – 2:1 HDMI/DVI Switch with Equalization

2:1 HDMI/DVI Switch with Equalization
AD8190
FEATURES
Two inputs, one output HDMI/DVI links
Enables HDMI 1.2a-compliant receiver
Four TMDS channels per link
Supports 250 Mbps to 1.65 Gbps data rates
Supports 25 MHz to 165 MHz pixel clocks
Equalized inputs for operation with long HDMI cables
(20 meters at 1080p)
Fully buffered unidirectional inputs/outputs
Globally switchable 50 Ω on-chip terminations
Pre-emphasized outputs
Low added jitter
Single-supply operation (3.3 V)
Four 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 two additional signals
Output disable feature
Reduced power dissipation
Output termination removal
Two AD8190s support HDMI/DVI dual-link
Standards compliant: HDMI receiver, HDCP, DVI
Serial (I²C slave) control interface
56-lead, 8 mm x 8 mm, LFCSP, Pb-free package
APPLICATIONS
Multiple input displays
Projectors
A/V receivers
Set-top boxes
Advanced television (HDTV) sets
GENERAL DESCRIPTION
The AD8190 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 allow
the construction of larger arrays using the wire-OR technique.
The AD8190 is provided in a space saving, 56-lead, LFCSP,
surface-mount, Pb-free, plastic package and is specified to
operate over the −40°C to +85°C temperature range.
I2C_SDA
I2C_SCL
I2C_ADDR
VTTI
IP_A[3:0]
IN_A[3:0]
IP_B[3:0]
IN_B[3:0]
VTTI
AUX_A[3:0]
AUX_B[3:0]
FUNCTIONAL BLOCK DIAGRAM
RESET
SERIAL INTERFACE
CONFIG
INTERFACE
CONTROL
LOGIC
AD8190
AVCC
DVCC
AMUXVCC
AVEE
DVEE
4
4
SWITCH
4
CORE
4
EQ
PE
4
4
HIGH SPEED
BUFFERED
VTTO
+
OP[3:0]
ON[3:0]
–
4
SWITCH
4
4
CORE
LOW SPEED UNBUFFERED
BIDIRECTIONAL
Figure 1.
AUX_COM[3:0]
SET-TOP BOX
TYPICAL APPLICATION
HDTV SET
HDMI
RECEIVER
DVD PLAYER
AD8190
DVD
01:18
Figure 2. Typical AD8190 Application for HDTV Sets
PRODUCT HIGHLIGHTS
1. Supports data rates up to 1.65 Gbps, enabling UXGA
(1600 × 1200) DVI resolutions and 1080p HDMI formats.
2. Input cable equalizer enables use of long cables at the
input (more than 20 meters of 24 AWG cable at 1080p).
3. Auxiliary switch allows routing of the DDC bus and two
additional single-ended signals for a single chip, fully
HDMI 1.2a receive-compliant solution.
Rev. 0
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