On Tue, Jun 13, 2006 at 07:34:07PM +0200, marco tozzini wrote:
Mark,
Just an Idea
Afaik LVDS is a point to point connection,
Not exactly, there are variants like Bus LVDS that
allow multiple loads, although stubs on the transmission
line are forbidden. You can however have the driver
and the middle and a doubly terminated line, at the cost
of additional power consumption in the two terminating
resistors.
but it allows huge speeds
Indeed. Especially if self clocked through 8B/10B
encoding for example. That's what PCI express uses.
At 50Mb/s (40Mb effective data rate if using 8B/10B
encoding, you can probably have a few tens of receivers
along the line).
Well, I just looked it up, National's DS91C180 can drive
up to 32 LVDS receivers at 200Mb/s on a doubly terminated
LVDS pair.
Gabriel