PTN3361B Datasheet, PDF(3/29 Page) NXP Semiconductors – HDMI/DVI level shifter with dongle detect support and active DDC buffer

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PTN3361B Datasheet, PDF (3/29 Pages) NXP Semiconductors – HDMI/DVI level shifter with dongle detect support and active DDC buffer

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NXP Semiconductors

PTN3361B

HDMI/DVI level shifter with dongle detect and DDC buffer

2. Features

2.1 High-speed TMDS level shifting

I Converts four lanes of low-swing AC-coupled differential input signals to DVI v1.0 and

HDMI v1.3a compliant open-drain current-steering differential output signals

I Pin-programmable pre-emphasis feature

I TMDS level shifting operation up to 1.65 Gbit/s per lane (165 MHz character clock)

I TMDS level shifting operation up to 2.25 Gbit/s per lane (225 MHz character clock)

using pre-emphasis feature

I Integrated 50 â¦ termination resistors for self-biasing differential inputs

I Back-current safe outputs to disallow current when device power is off and monitor is

I Disable feature to turn off TMDS inputs and outputs and to enter low-power state

2.2 DDC level shifting

I Integrated active DDC buffering and level shifting (3.3 V source to 5 V sink side)

I Rise time accelerator on sink-side DDC ports

I 0 Hz to 400 kHz I2C-bus clock frequency

I Back-power safe sink-side terminals to disallow backdrive current when power is off or

when DDC is not enabled

2.3 HDMI dongle detect support

I Incorporates I2C slave ROM

I Responds to DDC read to address 81h with predetermined byte sequence

I Feature enabled by pin DDET (must be enabled for correct operation in accordance

with DisplayPort interoperability guideline

2.4 HPD level shifting

I 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

I Integrated 200 kâ¦ pull-down resistor on HPD sink input guarantees âinput LOWâ when

no display is plugged in

I Back-power safe design on HPD_SINK to disallow backdrive current when power is off

2.5 General

I Power supply 3.3 V Â± 10 %

I ESD resilience to 7 kV HBM, 1 kV CDM

I Support for optional HDMI dongle detection via DDC/I2C-bus channel

I Power-saving modes (using output enable)

I Back-current-safe design on all sink-side main link, DDC and HPD terminals

I Transparent operation: no re-timing or software conï¬guration required

PTN3361B_2

Product data sheet

Rev. 02 â 7 October 2009

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