PTN3360DBS,518

The PTN3360D is a high-speed level shifter device which converts four lanes of low-swingAC-coupled differential input signals to DVI v1.0 and HDMI v1.4b compliant open-draincurrent-steering differential output signals, up to 3.0 Gbit/s per lane to support 36-bitdeep color mode, 4K × 2K video format or 3D video data transport. Each of these lanesprovides a level-shifting differential buffer to translate from low-swing AC-coupleddifferential signaling on the source side, to TMDS-type DC-coupled differentialcurrent-mode signaling terminated into 50 Ω to 3.3 V on the sink side. Additionally, thePTN3360D provides a single-ended active buffer for voltage translation of the HPD signalfrom 5 V on the sink side to 3.3 V on the source side and provides a channel with activebuffering and level shifting of the DDC channel (consisting of a clock and a data line)between 3.3 V source-side and 5 V sink-side. The DDC channel is implemented usingactive I²C-bus buffer technology providing capacitive isolation, redriving and level shiftingas well as disablement (isolation between source and sink) of the clock and data lines.

The low-swing AC-coupled differential input signals to the PTN3360D typically come froma display source with multi-mode I/O, which supports multiple display standards, forexample, DisplayPort, HDMI and DVI. While the input differential signals are configured tocarry DVI or HDMI coded data, they do not comply with the electrical requirements of theDVI v1.0 or HDMI v1.4b specification. By using PTN3360D, chip set vendors are able toimplement such reconfigurable I/Os on multi-mode display source devices, allowing thesupport of multiple display standards while keeping the number of chip set I/O pins low.

The PTN3360D main high-speed differential lanes feature low-swing self-biasingdifferential inputs which are compliant to the electrical specifications of DisplayPortStandard v1.2 and/or PCI Express Standard v1.1, and open-drain current-steeringdifferential outputs compliant to DVI v1.0 and HDMI v1.4b electrical specifications. TheI²C-bus channel actively buffers as well as level-translates the DDC signals for optimalcapacitive isolation. The PTN3360D also supports power-saving modes in order tominimize current consumption when no display is active or connected.

The PTN3360D is a fully featured HDMI as well as DVI level shifter. The PTN3360Dsupersedes PTN3360B, and provides a better high speed performance with aprogrammable equalizer.

PTN3360D is powered from a single 3.3 V power supply consuming a small amount ofpower (230 mW typical) and is offered in a 48-terminal HVQFN48 package.

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