PTN3300AHF2,518

Overview

The PTN3300AHF2,518 is a DVI/HDMI level shifter with an inverting 1.1 V HPD output. 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 (3.0 V to 3.6 V) and consumes 120 mW typically in active mode. It features integrated 50 Ω termination resistors for self-biasing differential inputs and provides back-current safe outputs. The package is HWQFN48 plastic thermal enhanced very very thin quad flat package with 48 terminals.

Feature Summary

• Converts four lanes of low-swing AC-coupled differential input signals to DVI and HDMI compliant open-drain current-steering differential output signals
• Provides voltage translation for the Hot Plug Detect signal from 5 V on the sink side to 1.1 V on the source side with logic inversion
• Features integrated DDC level shifting between 3.3 V source-side and 5 V sink-side using pass gate technology
• Includes back-current safe design on all sink-side terminals to disallow backdrive current when power is off

Applications

• Multi-mode display source devices requiring support for multiple display standards while keeping I/O pins low
• Converting DisplayPort or PCI Express electrical signaling to DVI or HDMI compliant TMDS signaling
• System designs requiring transparent level shifting without re-timing or software configuration

Procurement Notes

Verify the specific ordering suffix HF2 corresponds to the HWQFN48 leadframe-based package variant rather than the resin-based HF variant. Confirm RoHS compliance status as the component is listed as compliant in general databases but verify against the latest manufacturer documentation. Ensure the supplier provides the original NXP datasheet for accurate pinout and electrical parameter validation before procurement.

Selection Notes

Select this component when interfacing multi-mode sources like DisplayPort or PCIe PHYs to DVI or HDMI sinks. It is suitable for applications needing transparent level shifting without data retiming. Consider the PTN3301 if active buffering of DDC lines and HDMI dongle detection are required instead of simple pass-gate isolation. Ensure the system supports the 3.3 V supply voltage and accommodates the 48-terminal QFN package constraints.

Part Context

The PTN3300A series serves as a bridge between modern multi-mode display sources and legacy DVI/HDMI displays. The PTN3300AHF2 differs from the PTN3300AHF primarily in its physical package construction; the HF2 uses a leadframe-based HWQFN48 package, whereas the HF uses a resin-based HWQFN48R package. Both variants share identical electrical characteristics and functionality within the PTN3300A family.

Replacement Considerations

PTN3300B is functionally identical except it lacks the inverting HPD feature. PTN3301 offers additional features including active DDC buffering and HDMI dongle detection.