ADV3003ACPZ

Overview

The ADV3003ACPZ is a four-channel Transition Minimized Differential Signaling (TMDS) buffer designed for HDMI and DVI applications. It operates with a single 3.3 V supply and supports data rates from 250 Mbps to 2.25 Gbps, corresponding to pixel clocks of 25 MHz to 225 MHz. The device features a fixed 12 dB input equalizer and selectable 6 dB output pre-emphasis to compensate for signal loss in long cables or PCB traces. It includes matched 50 Ω on-chip input and output terminations and is housed in a 40-lead, 6 mm × 6 mm LFCSP package.

Feature Summary

• Provides 12 dB fixed input equalization to support long HDMI cable runs up to 20 meters at maximum data rates.
• Offers selectable 6 dB output pre-emphasis to drive high-loss output cables or extended PCB traces.
• Integrates matched 50 Ω on-chip terminations for both inputs and outputs to improve system signal integrity.
• Includes a transmitter disable feature that reduces power dissipation and indicates link inactivity to connected sources.

Applications

• Multiple input displays
• Advanced television set front panel connectors
• HDMI/DVI cable extenders

Procurement Notes

Verify the specific ordering suffix to confirm the package type and RoHS compliance status. Ensure the component matches the required temperature range specifications for the intended operational environment. Cross-reference the datasheet revision history to confirm the accuracy of pin configurations and electrical parameters before integration into the design.

Selection Notes

Select this component when designing systems requiring buffering of HDMI or DVI links with significant signal degradation. It is suitable for applications involving long input cables or extensive PCB routing where signal integrity must be maintained. Ensure the design accommodates the single 3.3 V supply requirement and utilizes the external control pins for optimal configuration of pre-emphasis and enable states.

Part Context

The ADV3003 is part of Analog Devices' portfolio of high-speed interface solutions targeting consumer electronics and professional AV equipment. It addresses the need for reliable TMDS signal transmission in environments with complex cabling or layout constraints. The device complements other HDMI/DVI components by providing robust signal conditioning without requiring external discrete termination resistors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing system requirements if considering alternative vendors or updated revisions from the manufacturer.

FAQ

How does the ADV3003 handle input signal degradation?

The device incorporates a fixed 12 dB input equalizer that boosts high-frequency components, allowing it to compensate for signal loss in cables up to 20 meters long at 2.25 Gbps.

What is the function of the TX_EN pin?

The TX_EN pin controls the transmitter state. Setting it to logic low disables the transmitter and input terminations, reducing power consumption and presenting a high impedance to indicate an inactive link.

Can the output pre-emphasis be adjusted?

Yes, the PE_EN pin allows selection between 0 dB and 6 dB of output pre-emphasis to optimize signal quality for different cable or trace lengths.