PTN3363BSMP

PTN3363 is a low power, high-speed level shifter device which converts four lanes of low-swing AC-coupled differential input signals to DVI v1.0 and HDMI v1.4b compliant open-drain current-steering differential output signals, up to 3.4 Gbit/s per lane to support 36-bit deep color mode, 4K x 2K video format or 3D video data transport. Each of these lanes provides a level-shifting differential active buffer, with built-in Equalization, to translate from low-swing AC-coupled differential signaling on the source side, to TMDS-type DC-coupled differential current-mode signaling terminated into 50 to 3.3 V on the sink side. Additionally, the PTN3363 provides a single-ended active buffer for voltage translation of the HPD signal from 5 V on the sink side to 3.3 V on the source side and provides a channel with active buffering 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 using active I²C-bus buffer technology providing redriving and level shifting as well as disablement (isolation between source and sink) of the clock and data lines.

High-speed TMDS level shifting

• Converts four lanes of low-swing AC-coupled differential input signals to DVI v1.0 and HDMI v1.4b compliant open-drain current-steering differential output signals
• TMDS level shifting operation up to 3.4 Gbit/s per lane (340 MHz TMDS clock) supporting 4K × 2K 3 Gbit/s and 3D video formats
• Programmable receive equalization
• Integrated 50 O termination resistors for self-biasing differential inputs
• Programmable high-impedance termination resistors for HDMI re-driver usage with external 50 O termination resistors
• Back-current safe outputs to disallow current when device power is off and monitor is on
• Disable feature to turn off TMDS inputs and outputs and to enter low-power condition
• Selectable differential output termination on TMDS channels

DDC level shifting

• Integrated DDC buffering and level shifting (3.3 V source to 5 V sink side and vice versa)
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