ADV3003 Datasheet, PDF (1/16 Pages) Analog Devices – HDMI/DVI TMDS Equalizer

FEATURES
One input, one output HDMI/DVI high speed signal
equalizer/driver
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)
Pre-emphasized outputs
Matched 50 Ω input and output on-chip terminations
Low added jitter
Transmitter disable feature
Reduces power dissipation
Disables input terminations
Single-supply operation (3.3 V)
Standards compliant: HDMI receiver, DVI
40-lead, 6 mm × 6 mm, RoHS-compliant LFCSP
APPLICATIONS
Multiple input displays
Advanced television set (HDTV) front panel connectors
HDMI/DVI cable extenders
GENERAL DESCRIPTION
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.
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.
HDMI/DVI TMDS Equalizer
ADV3003
FUNCTIONAL BLOCK DIAGRAM
PE_EN TX_EN
VTTI
PARALLEL
CONTROL
CONTROL
LOGIC
ADV3003
AVCC
AVEE
VTTO
IP[3:0] ⁺
IN[3:0] ^–
4
4
4
EQ
BUFFER
PE ⁴
HIGH SPEED BUFFERED
+ _OP[3:0]
– _ON[3:0]
Figure 1.
TYPICAL APPLICATION DIAGRAM
MEDIA CENTER
SET-TOP BOX
DVD PLAYER
HDMI
RECEIVER
4:1 HDMI
SWITCH
HDTV SET
ADV3003
GAME
CONSOLE
BACK PANEL
CONNECTORS
FRONT PANEL
CONNECTOR
Figure 2.
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. 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.
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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