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NXP Semiconductors Electronic Components Datasheet

PTN3300B Datasheet

DVI and HDMI level shifter

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PTN3300B
DVI and HDMI level shifter
Rev. 01 — 8 July 2008
www.DataSheet4U.com
Product data sheet
1. General description
The PTN3300B is a high-speed level shifter device which converts four lanes of low-swing
AC-coupled differential input signals to DVI and HDMI compliant open-drain
current-steering differential output signals, up to 2.25 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 to 3.3 V on the sink side. Additionally, the
PTN3300B 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 for 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 pass gate
technology allowing 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 PTN3300B 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 PTN3300B, 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 1.
The PTN3300B 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
PTN3300B also supports power-saving modes in order to minimize current consumption
when no display is active or connected.
The PTN3300B supports level translation functions and features supporting both DVI and
HDMI. A derivative, PTN3300A, is available that is identical to the PTN3300B except that
the HPD_SOURCE_N output is the inverting function of input HPD_SINK, level shifted to
1.1 V. For a fully-featured HDMI/DVI level shifter function that supports active buffering of
the DDC lines and HDMI dongle detect, the PTN3301 should be used.
PTN3300B is powered from a single 3.3 V power supply consuming a small amount of
power (120 mW typical) and is offered in two different 48-terminal HWQFN packages, one
laminate based (no terminals visible from edge of the package), and one leadframe-based
(terminals visible from edge of the package).


NXP Semiconductors Electronic Components Datasheet

PTN3300B Datasheet

DVI and HDMI level shifter

No Preview Available !

NXP Semiconductors
www.DataSheet4U.com
PTN3300B
DVI and HDMI level shifter
MULTI-MODE DISPLAY SOURCE
PCIe PHY ELECTRICAL
TMDS
coded
data
PCIe
output buffer
TX
FF
TX
TMDS
coded
data
PCIe
output buffer
TX
FF
TX
TMDS
coded
data
PCIe
output buffer
TX
FF
TX
TMDS
PCIe
clock
output buffer
pattern TX
FF
TX
CONFIGURATION
DDC I/O
(I2C-bus)
OE_N
PTN3300B
reconfigurable I/Os
AC-coupled
differential pair
TMDS data
DATA LANE
IN_D4+
IN_D4
OUT_D4+
OUT_D4
AC-coupled
differential pair
TMDS data
DATA LANE
IN_D3+
IN_D3
OUT_D3+
OUT_D3
AC-coupled
differential pair
TMDS data
DATA LANE
IN_D2+
IN_D2
OUT_D2+
OUT_D2
AC-coupled
differential pair
clock
CLOCK LANE
IN_D1+
IN_D1
OUT_D1+
OUT_D1
0 V to 3.3 V
HPD_SOURCE
0 V to 5 V
HPD_SINK
3.3 V
3.3 V
DDC_EN
(0 V to 3.3 V)
5V
3.3 V
SCL_SOURCE
SCL_SINK
5V
SDA_SOURCE SDA_SINK
Remark: TMDS clock and data lanes can be assigned arbitrarily and interchangeably to D[4:1].
Fig 1. Typical application system diagram
002aad681
PTN3300B_1
Product data sheet
Rev. 01 — 8 July 2008
© NXP B.V. 2008. All rights reserved.
2 of 23


Part Number PTN3300B
Description DVI and HDMI level shifter
Maker NXP Semiconductors
Total Page 23 Pages
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