Product/Service

High Speed LVDS Cable

Source: Spectra-Strip
National Semiconductor's DS90C387 and DS90CF388 chipsets are low voltage differential signaling (LVDS) devices that enable
National Semiconductor's DS90C387 and DS90CF388 chipsets are low voltage differential signaling (LVDS) devices that enable up to 5.38 Gigabit/second copper interconnects for emerging SXGA and UXGA resolutions in flat panel displays. These chipsets take 48 bits of RGB data and transmit them over a 8 pairs. A 9th pair acts as a clock to synchronize and sample the data. Maximum cable length is 10 meters. Because of the high data pair frequency and distances involved, precision skew control in and between cable pairs is critical for accurate clocking of the data.

LVDS Applications

  • Dual pixel, high resolution data transmission between host and flat panel display

Introducing SKEWCLEAR cabling

To meet flat panel display requirements of high crosstalk isolation and very low skew, we've developed a new concept in individually shielded differential pair cabling for use in high data rate applications.

Called SKEWCLEAR, this cabling features a patented manufacturing technology that corrects the causes of skew that creep into cables in the first place.

The design consists of individually shielded multiple parallel pairs which are laminated in a planar configuration to assure equal pair lengths. The flat cable pairs are bonded and then slit in a staggered fashion, enabling the cable to be flexibly cabled into a round format, yet keeping the same pair-to-pair physical length of a flat cable construction. Characteristic impedance is 100 ohms +/- 5 ohms.

As a result of this patented manufacturing approach, skew values are consistently reduced to within 4 picoseconds /ft within-pair and 10 picoseconds / ft pair to pair. Other cable technologies can yield very good skew performance with extreme care and craftsmanship. SKEWCLEAR, by virtue of its design, makes tight skew control consistent, repeatable, and easy.

Features/Benefits

  • 9 individually shielded parallel pairs
  • Round or flat options
  • No drain wire option available
  • Extremely tight and consistent skew control
  • Stable impedance
  • High crosstalk isolation

Part Information:

Part Number: 165-2499-972
Description: External round cable for National's LVDS Flat Panel Display Chipsets. 24 awg, 100 ohm, individually shielded parallel pair twinax
Family: SKEWCLEAR

Spectra-Strip, 720 Sherman Avenue, Hamden, CT 06514. Tel: 203-287-7455; Fax: 203-281-5872.