Datasheet

TFP410-EP

PanelBus™ DIGITAL TRANSMITTER

SGLS344A − JULY 2006 − REVISED MAY 2011

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

functional description

The TFP410 is a DVI-compliant digital transmitter that is used in digital host monitor systems to transition

minimized differential signaling (TMDS) encode and serialize RGB pixel data streams. The 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 I

C 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 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 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 TMDS 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 TMDS encoder, and three differential TMDS 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 I

C 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 I

C 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 deskew feature allowing the users to deskew the input data with respect to the IDCK±

(see the data deskew feature section).