HDMI/DVI TMDS Equalizer

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.

Product Highlights

* 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.

* 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.

* The selectable 6 dB of output pre-emphasis allows the ADV3003 to drive high loss output cables or long PCB traces.

* Matched 50 Ω on-chip input and output terminations improve system signal integrity.

* An external control pin, PEEN, sets the output pre-emphasis to either 0 dB or 6 dB.

* An external control pin, TXEN, 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.

Applications

* Multiple input displays

* Advanced television set (HDTV) front panel connectors

* HDMI/DVI cable extenders

* 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