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Technology Stocks : Silicon Graphics, Inc. (SGI) -- Ignore unavailable to you. Want to Upgrade?

To: Woody_Nickels who wrote (5887)	3/19/1999 9:08:00 PM
From: Thomas A Watson	Read Replies (1) \| Respond to of 14451

Nice Ken, I bookmarked it. You can just bs and type in another symbol to get whatever. A friend just showed me the current march 99 copy of Computer Design's Electronic Systems Technology & Design. The front cover shows the SGI sw1600 and there is a feature article on lvds which is the digital interface. The March 99 mag is not on line yet. It will be at estd.com Anyway there is also a 9 page overview from national on the chips used to implement the lvds. Ok guys, here's some macho sexy techno talk. The transmitter converts 48 bits of CMOS/TTL data into 8 LVDS (Low Voltage Differential Signalling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a ninth LVDS link. Every cycle of the transmit clock 48 bits of RGB input data are sampled and transmitted. The receiver converts the LVDS data streams back into 48 bits of CMOS/TTL data. Control bits (FPLINE, FPFRAME and DRDY) are transmitted over 3 LVDS lines during the blanking interval. At a transmit clock frequency of 112 MHz, 48 bits of RGB data are transmitted at an effective rate of 672 Mbps per LVDS data channel. Using a 112 MHz clock, the data throughput is 672 Megabytes (5.38 Gbits) per second. Sorry if that colorful RGB language offended anyone. TOm Watson tosiwme. PS. To read more naughty stuff. national.com national.com