PTN3366BS: Low power HDMI/DVI level shifter with active DDC buffer, supporting 3 Gbit/s operation

PTN3366 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 Gbit/s per lane to support 36-bit deep color mode, 4K × 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 Ω to 3.3 V on the sink side. Additionally, the PTN3366 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.

The low-swing AC-coupled differential input signals to the PTN3366 typically come from a display source with multi-mode I/O, which supports multiple display standards, for example, DisplayPort, HDMI and DVI. While the input differential signals are configured to carry DVI or HDMI coded data, they do not comply with the electrical requirements of the DVI v1.0 or HDMI v1.4b specification. By using PTN3366, chip set vendors are able to implement such reconfigurable I/Os on multi-mode display source devices, allowing the support of multiple display standards while keeping the number of chip set I/O pins low.

The PTN3366 main high-speed differential lanes feature low-swing self-biasing differential inputs which are compliant to the electrical specifications of DisplayPort Standard v1.2a and/or PCI Express Standard v1.1, and open-drain current-steering differential outputs compliant to DVI v1.0 and HDMI v1.4b electrical specifications. The I²C-bus channel actively buffers as well as level-translates the DDC signals. The PTN3366 supports standby mode in order to minimize current consumption when Hot Plug Detect signal HPD_SINK is LOW.

PTN3366 is powered from a single 3.3 V power supply consuming a small amount of power (72 mW typical) and is offered in a 32-terminal HVQFN32 package.

Outline 3d SOT617-3

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 Gbit/s per lane (300 MHz TMDS clock) supporting 4K × 2K 3 Gbit/s and 3D video formats
  • Programmable receive equalization
  • Integrated 50 Ω termination resistors for self-biasing differential inputs
  • 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)
  • Rise time accelerator on connector side DDC ports
  • Up to 400 kHz I²C-bus clock frequency
  • Back-power safe sink-side terminals to disallow backdrive current when power is off or when DDC is not enabled

HPD level shifting

  • HPD non-inverting level shift from 0 V on the sink side to 0 V on the source side, or from 5 V on the sink side to 3.3 V on the source side
  • Integrated 200 kΩ pull-down resistor on HPD sink input guarantees ‘input LOW’ when no display is plugged in
  • Back-power safe design on HPD_SINK to disallow backdrive current when power is off

General

  • Power supply 3.3 V
  • ESD resilience to 8 kV HBM, 1 kV CDM
  • Power-saving modes
  • Back-current-safe design on all sink-side main link, DDC and HPD terminals
  • Transparent operation: no retiming or software configuration required
  • 32-terminal HVQFN32 package

Data Sheets (1)
Name/DescriptionModified Date
Low power HDMI/DVI level shifter with active DDC buffer, supporting 3 Gbit/s operation (REV 1.1) PDF (422.0 kB) PTN336622 May 2015
Package Information (1)
Name/DescriptionModified Date
DFN5050-32: plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5 x 5 x 0.85 mm (REV 1.1) PDF (219.0 kB) SOT617-308 Jun 2016
Packing (1)
Name/DescriptionModified Date
HVQFN32; Reel dry pack, SMD, 13" Q2/T3 turn product orientation Orderable part number ending, 528 or MP Ordering code... (REV 1.0) PDF (199.0 kB) SOT617-3_52824 Jul 2014
Ordering Information
ProductStatusPackage versionRise/fall time (ps)FeaturesStandby current (uA)Other featuresOperating Temperature (Cel)Data transfer rate (Mb/s)Operating frequency (MHz)RGB OutputCrystal oscillatorNumber of channels in applicationOutput voltage (black-to-white) Vp-p typ (V)Supply current (mA)Pixel frequency (MHz)InputsOutputsApplication
PTN3366BSActiveSOT617-3
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
PTN3366BSSOT617-3Reel 13" Q2/T3 in DrypackActivePTN3366BSMP (9353 020 87528)Standard MarkingPTN3366BSAlways Pb-free22
Low power HDMI/DVI level shifter with active DDC buffer, supporting 3 Gbit/s operation PTN3366BS
SOT617-3 LPC11U35FHI33
HVQFN32; Reel dry pack, SMD, 13" Q2/T3 turn product orientation Orderable part number ending, 528 or MP Ordering code... PTN3366BS
OL2381AHN