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 UXGA 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 dis- tances 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 control 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 perfor- mance.
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 addi- tion to power-on default settings programmed by pin-strapping resistors.
