SLDS145B Datasheet, PDF (9/29 Pages) Texas Instruments – TFP410 TI PanelBus DIGITAL TRANSMITTER

TFP410
TI PanelBus™ DIGITAL TRANSMITTER
SLDS145B − OCTOBER 2001 − REVISED MAY 2011
functional description
The TFP410 is a DVI-compliant digital transmitter that is used in digital host monitor systems to T.M.D.S. encode
and serialize RGB pixel data streams. TFP410 supports resolutions from VGA to WUXGA (and 1080p) and can
be controlled in two ways: 1) configuration and state pins or 2) the programmable I²C serial interface (see the
terminal functions section).
The host in a digital display system, usually a PC or consumer electronics device, contains a DVI-compatible
transmitter such as the TI TFP410 that receives 24-bit pixel data along with appropriate control signals. The
TFP410 encodes the signals into a high speed, low voltage, differential serial bit stream optimized for
transmission over a twisted-pair cable to a display device. The display device, usually a flat-panel monitor,
requires a DVI compatible receiver like the TI TFP401 to decode the serial bit stream back to the same 24-bit
pixel data and control signals that originated at the host. This decoded data can then be applied directly to the
flat panel drive circuitry to produce an image on the display. Since the host and display can be separated by
distances up to 5 meters or more, serial transmission of the pixel data is preferred (see the T.M.D.S. pixel data
and control signal encoding, pixel data and control signal encoding, universal graphics contoller interface
voltage signal levels, and universal graphics controller interface clock inputs sections).
The TFP410 integrates a high-speed digital interface, a T.M.D.S. encoder, and three differential T.M.D.S.
drivers. Data is driven to the TFP410 encoder across 12 or 24 data lines, along with differential clock pair and
sync signals. The flexibility of the TFP410 allows for multiple clock and data formats that enhance system
performance.
The TFP410 also has enhanced PLL noise immunity, an enhancement accomplished with on-chip regulators
and bypass capacitors.
The TFP410 is versatile and highly programmable to provide maximum flexibility for the user. An I²C host
interface is provided to allow enhanced configurations in addition to power-on default settings programmed by
pin-strapping resistors.
The TFP410 offers monitor detection through receiver detection, or hot-plug detection when I²C is enabled. The
monitor detection feature allows the user enhanced flexibility when attaching to digital displays or receivers (see
terminal functions, hot-plug/unplug, and register descriptions sections).
The TFP410 has a data de-skew feature allowing the users to de-skew the input data with respect to the IDCK±
(see the data de-skew feature section).
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