ptn3381b NXP Semiconductors, ptn3381b Datasheet

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ptn3381b

Manufacturer Part Number
ptn3381b
Description
Ptn3381b Enhanced Performance Hdmi/dvi Level Shifter With Voltage Regulator, Dongle Detect Support And Active Ddc Buffer
Manufacturer
NXP Semiconductors
Datasheet
1. General description
The PTN3381B is a high-speed level shifter device which 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, up to 1.65 Gbit/s per lane. Each of these lanes
provides a level-shifting differential buffer 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
PTN3381B 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 I
as well as disablement (isolation between source and sink) of the clock and data lines.
To provide the highest level of integration in external adapter (or: dongle) applications,
PTN3381B includes an onboard 5 V DC regulator. Its output is designed to provide the
required 5 V power supply to the DVI or HDMI connector, thereby eliminating the need for
a separate external regulator. The on-board regulator needs only two external capacitors
to operate, and its output is active whenever a valid 3.3 V is applied to the PTN3381B V
pins.
The low-swing AC-coupled differential input signals to the PTN3381B typically come from
a display source with multi-mode I/O, which supports multiple display standards, e.g.,
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 v1.3a specification. By using PTN3381B, 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. See
Figure
The PTN3381B main high-speed differential lanes feature low-swing self-biasing
differential inputs which are compliant to the electrical specifications of DisplayPort
Standard v1.1 and/or PCI Express Standard v1.1, and open-drain current-steering
differential outputs compliant to DVI v1.0 and HDMI v1.3a electrical specifications. The
I
capacitive isolation. Its I
dongle detect by issuing a predetermined code sequence upon a read command to an
I
minimize current consumption when no display is active or connected.
The PTN3381B is a fully featured HDMI as well as DVI level shifter. It is functionally
equivalent to PTN3361B but provides an onboard 5 V regulator.
2
2
C-bus channel actively buffers as well as level-translates the DDC signals for optimal
C-bus specified address. The PTN3381B also supports power-saving modes in order to
PTN3381B
Enhanced performance HDMI/DVI level shifter with voltage
regulator, dongle detect support and active DDC buffer
Rev. 2 — 15 October 2010
1.
2
C-bus buffer technology providing capacitive isolation, redriving and level shifting
2
C-bus control block also provides for optional software HDMI
Product data sheet
DD

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ptn3381b Summary of contents

Page 1

... V power supply to the DVI or HDMI connector, thereby eliminating the need for a separate external regulator. The on-board regulator needs only two external capacitors to operate, and its output is active whenever a valid 3 applied to the PTN3381B V pins. The low-swing AC-coupled differential input signals to the PTN3381B typically come from a display source with multi-mode I/O, which supports multiple display standards, e ...

Page 2

... NXP Semiconductors PTN3381B is powered from a single 3.3 V power supply consuming a small amount of power (100 mW typical without load regulator output) and is offered in a 48-terminal HVQFN48 package. MULTI-MODE DISPLAY SOURCE PCIe PHY ELECTRICAL TMDS coded data TMDS coded data TMDS coded data TMDS ...

Page 3

... Back drive protection output Short-circuit protection Overcurrent protection PTN3381B Product data sheet 2 C-bus clock frequency 2 C slave ROM All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter © NXP B.V. 2010. All rights reserved ...

Page 4

... PTN3381B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter 2 C-bus channel Version SOT619-1 © NXP B.V. 2010. All rights reserved. ...

Page 5

... DDC_EN ( 3.3 V) SCL_SOURCE 2 I C-BUS SLAVE ROM SDA_SOURCE DDET CP C reg(ext) CN Functional diagram of PTN3381B All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter PTN3381B enable enable enable enable enable enable enable ...

Page 6

... All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter V5OUT DDC_EN 31 GND PTN3381BBS 30 HPD_SINK 29 SDA_SINK 28 SCL_SINK 27 GND OE_N 002aae078 © NXP B.V. 2010. All rights reserved ...

Page 7

... V source-side DDC clock I/O. Pulled up by external termination to 3.3 V. 3.3 V source-side DDC data I/O. Pulled up by external termination to 3.3 V. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter © NXP B.V. 2010. All rights reserved ...

Page 8

... Positive terminal for the voltage regulator external capacitor. Negative terminal for the voltage regulator external capacitor regulated output from the integrated voltage regulator. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter DD either directly or via a DD for details ...

Page 9

... DVI or HDMI connector, thereby eliminating the need for a separate external regulator. The onboard regulator needs only two external capacitors to operate, and its output is active whenever a valid 3 applied to the PTN3381B V back drive protection output prevents back-drive current from 5 V output to the input supply ...

Page 10

... The following sections and truth table describe their detailed operation. 7.1.1 Hot plug detect The HPD channel of PTN3381B functions as a level-shifting buffer to pass the HPD logic signal from the display sink device (via input HPD_SINK the display source device (via output HPD_SOURCE) ...

Page 11

... V RX(bias) high-impedance high-impedance; zero output current high-impedance high-impedance; zero output current All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter [4] DDC HPD_SOURCE high-impedance LOW SDA_SINK LOW connected to SDA_SOURCE ...

Page 12

... DDC I/Os and the HPD_SINK input. This supports user scenarios where the display is connected and powered, but the PTN3381B is unpowered. In these cases, the PTN3381B will sink no more than a negligible amount of leakage current, and will block the display (sink) termination network from driving the power supply of the PTN3381B or that of the inactive DVI or HDMI source ...

Page 13

... HDMI dongle presence through the already available DDC/I predetermined bus sequence. Please see For the I should be tied HIGH. When DDET is LOW, the PTN3381B will not respond command. When used in an HDMI dongle, the DDET function must be enabled for correct operation in accordance with DisplayPort interoperability guidelines. When used in a DVI dongle, the DDET function must be disabled ...

Page 14

... If the master continues to issue clock edges past the 16 respond with a data byte of FFh. If the master does not acknowledge a received byte, the PTN3381B internal address pointer will be reset to 0 and a new Read sequence should be started by the master. Access to the 16-byte is by sequential read only as described above ...

Page 15

... Bit transfer Figure 6. SDA SCL S START condition Definition of START and STOP conditions. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Figure 5). change of data allowed mba607 P STOP condition Figure 7. ...

Page 16

... SCL from master 1 S START condition 2 Acknowledgement on the I C-bus All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter SLAVE MASTER TRANSMITTER/ TRANSMITTER RECEIVER not acknowledge acknowledge 2 8 clock pulse for ...

Page 17

... Product data sheet 2 Section 7.6 “I Section 7.7. The PTN3381B provides an integrated I 2 C-based HDMI dongle detection response function of PTN3381B. For a All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter C-bus based HDMI dongle detection” ...

Page 18

... V5OUT external regulator from pin CP to pin CN capacitance ambient temperature operating in free air Section 7.2. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Min Max −0.3 +4.6 −0 0.5 DD −0.3 6 ...

Page 19

... IN_Dx input pair includes all frequencies above 30 kHz inputs in high-impedance state |. Applies to IN_Dx signals. . RX(cm RX_D− All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Min Typ Max 200 300 - - ...

Page 20

... HPD_SINK to HPD_SOURCE HPD_SOURCE rise/fall HPD_SINK input pull-down resistor from All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Min Typ Max − 0. − 0.60 V − ...

Page 21

... 3 4.5 V; CC2 slew rate = 1.25 V/μs All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Min Typ Max 2 0.8 [ Min Typ Max [1] ...

Page 22

... PTN3381B Product data sheet Conditions 5 V regulator output 5 V regulator output 5 V regulator output = 1 μF C o(reg) I > load All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Min Typ Max 3.0 3.3 3.6 4 ...

Page 23

... 7.1 5.25 7.1 5.25 5.5 0.5 6.9 4.95 6.9 4.95 REFERENCES JEDEC JEITA MO-220 - - - All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter detail 0.5 5.5 0.05 0.1 0.1 ...

Page 24

... Solder bath specifications, including temperature and impurities PTN3381B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter © NXP B.V. 2010. All rights reserved ...

Page 25

... Package reflow temperature (°C) 3 Volume (mm ) < 350 260 260 250 Figure 10. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter Figure 10) than a SnPb process, thus ≥ 350 220 220 350 to 2000 > 2000 260 260 250 ...

Page 26

... Hot Plug Detect Inter-IC bus Input/Output Transition Minimized Differential Signaling Video Electronic Standards Association All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter peak temperature time 001aac844 © NXP B.V. 2010. All rights reserved. ...

Page 27

... NXP Semiconductors 15. Revision history Table 19. Revision history Document ID Release date PTN3381B v.2 20101015 PTN3381B v.1 20100930 PTN3381B Product data sheet Data sheet status Product data sheet Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter ...

Page 28

... Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter © NXP B.V. 2010. All rights reserved ...

Page 29

... Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. http://www.nxp.com salesaddresses@nxp.com All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2010 PTN3381B Fully integrated HDMI/DVI level shifter © NXP B.V. 2010. All rights reserved ...

Page 30

... Fully integrated HDMI/DVI level shifter Package outline Soldering of SMD packages . . . . . . . . . . . . . . 24 Introduction to soldering Wave and reflow soldering Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 24 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 25 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 26 Revision history . . . . . . . . . . . . . . . . . . . . . . . 27 Legal information . . . . . . . . . . . . . . . . . . . . . . 28 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 28 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Licenses Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Contact information . . . . . . . . . . . . . . . . . . . . 29 Contents Date of release: 15 October 2010 Document identifier: PTN3381B All rights reserved. ...

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