Transmitter converts TTL signals to LVDS channels.
Press Release Summary:
Model STLVDS385B converts 24 bits of video data into 4 LVDS channels to drive flat-panel display. Phase-locked transmit clock is transmitted in parallel with data streams over 5th LVDS link. At transmit clock frequency of 85 MHz, each LVDS channel transmits data to display at 595 Mbit/s. Offering on-chip input-jitter filtering and high noise rejection, transmitter supports flat panel displays with VGA, SVGA, XGA resolutions and single/dual-pixel SXGA resolutions.
Original Press Release:
High Speed Flat-panel Display Interface from STMicroelectronics
Transmitter converts TTL signals to LVDS channels
Geneva, March 19, 2004 - STMicroelectronics (NYSE: STM) has introduced a transmitter that converts 24 bits of video data into four LVDS channels to drive a flat-panel display. The use of LVDS signaling reduces the size and cost of the cable connecting to a display.
The STLVDS385B transmitter converts 28 bits of LVCMOS/LVTTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link.
The device supports input clock rates of 20 to 85MHz. During each cycle of the transmit clock, 28 bits of input data, 8 bits each of R, G and B data and four control and timing bits are sampled and transmitted. At a transmit clock frequency of 85MHz, each LVDS channel transmits this data to the flat panel display at 595Mbit/s. This is equivalent to a total throughput for the four channels of 297.5Mbyte/s.
The part supports flat panel displays with VGA, SVGA, XGA resolutions and single/dual-pixel SXGA resolutions. The part's LVDS output meets the requirements of the TIA/EIA 644 LVDS standard, with 345mV of LVDS output swing for low EMI.
The transmitter can be programmed to work with a rising- or falling-edge strobe signal, using a dedicated pin.
It also offers on-chip input-jitter filtering and high noise rejection. A power-down mode reduces power dissipation.
The STLVDS385B works with a voltage supply from 3 to 3.6V, and it is available in the TSSOP56 package. Pricing is $3.50 in quantities of 1K units. The complete datasheet can be found on-line at: http://st.com/stonline/books/pdf/docs/9695.pdf
Further information on this device is available at: www.st.com/interface
About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2003, the Company's net revenues were $7.24 billion and net earnings were $253 million. Further information on ST can be found at www.st.com
