Altera Corporation 5–38
July 2005 Stratix Device Handbook, Volume 2
Source-Synchronous Timing Budget
Input jitter tolerance (peak-to-
peak)
All 250 250 250 ps
Output jitter (peak-to-peak) All 200 200 200 ps
Output t
RISE
LVDS 80 110 120 80 110 120 80 110 120 ps
HyperTransport technology 120 170 200 120 170 200 120 170 200 ps
LVPECL 100 135 150 100 135 150 100 135 150 ps
PCML 80 110 135 80 110 135 80 110 135 ps
Output t
FALL
LVDS 80 110 120 80 110 120 80 110 120 ps
HyperTransport 110 170 200 110 170 200 110 170 200 ps
LVPECL 100 135 160 100 135 160 100 135 160 ps
PCML 110 145 175 110 145 175 110 145 175 ps
t
DUTY
LVDS (J =2..10) only 47.5 50 52.5 47.5 50 52.5 47.5 50 52.5 %
LVDS (J =1) and LVPECL, PCML,
HyperTransport technology
45 50 55 45 50 55 45 50 55 %
t
LOCK
All 100 100 100 μs
Table 5–8. High-Speed I/O Specifications for Wire-Bond Packages (Part 3 of 3)
Symbol Conditions
-6 Speed Grade -7 Speed Grade -8 Speed Grade
Unit
Min Typ Max Min Typ Max Min Typ Max