PTN3300AHF,518

Overview

The PTN3300AHF,518 is a DVI/HDMI level shifter manufactured by NXP Semiconductors. It converts four lanes of low-swing AC-coupled differential input signals to DVI and HDMI compliant open-drain current-steering differential output signals, supporting up to 2.25 Gbit/s per lane. The device operates on a single 3.3 V power supply with typical consumption of 120 mW in active mode. It includes an inverting buffer for HPD signal translation from 5 V sink-side to 1.1 V source-side and provides DDC channel level shifting between 3.3 V and 5 V domains. The component is housed in a 48-terminal HWQFN package.

Feature Summary

• Translates four lanes of low-swing AC-coupled differential inputs to TMDS-type DC-coupled outputs compliant with DVI v1.0 and HDMI v1.3a specifications.
• Features back-current safe outputs and integrated 50 Ω termination resistors for self-biasing differential inputs.
• Provides transparent operation without re-timing or software configuration requirements.
• Supports power-saving modes via source-side disablement and sink-side Hot Plug Detect detection.

Applications

• Multi-mode display source devices requiring support for multiple display standards.
• Systems utilizing DisplayPort or PCI Express electrical configurations interfacing with DVI/HDMI sinks.
• Consumer electronics requiring voltage translation between 3.3 V and 5 V logic domains.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to ensure correct package variant selection. Confirm that the HWQFN48R package dimensions align with the target PCB footprint. Ensure the design accounts for the exposed thermal pad connection requirements for proper heat dissipation and ground connectivity.

Selection Notes

Select this component when a transparent level shifter is required for multi-standard display interfaces without data retiming. Consider the PTN3301 if active buffering of DDC lines or HDMI dongle detect functionality is needed. Verify that the application supports the specified 3.3 V supply voltage and accommodates the necessary external AC coupling capacitors for the differential inputs.

Part Context

This part belongs to the PTN3300A family of high-speed level shifters designed for consumer video applications. It serves as a bridge between modern multi-mode I/O sources and legacy DVI/HDMI sinks. The device enables chipset vendors to implement reconfigurable I/Os while minimizing pin counts on the source side.

Replacement Considerations

The PTN3300B is functionally identical but lacks the inverting HPD feature found in the PTN3300A. For designs requiring active DDC buffering and dongle detection, the PTN3301 is the appropriate alternative within the same product family.