HDMI/DVI TMDS Equalizer
ADV3003
FEATURES
FUNCTIONAL BLOCK DIAGRAM
PE_EN TX_EN
One input, one output HDMI/DVI high speed signal
equalizer/driver
PARALLEL
CONTROL
AVCC
ADV3003
Enables HDMI 1.3 receive-compliant input
Four TMDS channels per input/output
Supports 250 Mbps to 2.25 Gbps data rates
Supports 25 MHz to 225 MHz pixel clocks
Fully buffered unidirectional inputs/outputs
Equalized inputs for operation with long HDMI cables
(20 meters at 2.25 Gbps)
AVEE
VTTI
CONTROL
LOGIC
VTTO
+
–
4
4
4
4
+
–
IP[3:0]
IN[3:0]
OP[3:0]
ON[3:0]
BUFFER
EQ
PE
HIGH SPEED BUFFERED
Pre-emphasized outputs
Figure 1.
Matched 50 Ω input and output on-chip terminations
Low added jitter
Transmitter disable feature
Reduces power dissipation
TYPICAL APPLICATION DIAGRAM
HDTV SET
MEDIA CENTER
SET-TOP BOX
DVD PLAYER
Disables input terminations
Single-supply operation (3.3 V)
Standards compliant: HDMI receiver, DVI
40-lead, 6 mm × 6 mm, RoHS-compliant LFCSP
HDMI
RECEIVER
GAME
CONSOLE
4:1 HDMI
SWITCH
ADV3003
APPLICATIONS
Multiple input displays
Advanced television set (HDTV) front panel connectors
HDMI/DVI cable extenders
BACK PANEL
CONNECTORS
FRONT PANEL
CONNECTOR
Figure 2.
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADV3003 is a 4-channel transition minimized differential
signaling (TMDS) buffer featuring equalized inputs and
pre-emphasized outputs. The ADV3003 features 50 Ω input
and output terminations, providing full-swing output signal
recovery and minimizing reflections for improved system
signal integrity. The ADV3003 is targeted at HDMI™/DVI
applications and is ideal for use in systems with long cable
runs, long PCB traces, and designs with interior cabling.
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. The 12 dB input cable equalizer enables the use of long
cables at the input. For a typical 24 AWG cable, the
ADV3003 compensates for more than 20 meters at data
rates up to 2.25 Gbps.
3. The selectable 6 dB of output pre-emphasis allows the
ADV3003 to drive high loss output cables or long PCB traces.
4. Matched 50 Ω on-chip input and output terminations
improve system signal integrity.
5. An external control pin, PE_EN, sets the output
pre-emphasis to either 0 dB or 6 dB.
The ADV3003 is provided in a 40-lead, LFCSP, surface-mount,
RoHS-compliant, plastic package and is specified to operate
over the −40°C to +85°C temperature range.
6. An external control pin, TX_EN, simultaneously disables
both the transmitter and the on-chip input terminations.
This feature reduces the power dissipation of the ADV3003
and indicates to a connected source when the ADV3003 is
disabled.
Rev. 0
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