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EP2C20F256C8N Datasheet, PDF (165/470 Pages) Altera Corporation – Cyclone II Device Handbook, Volume 1 | |||
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DC Characteristics and Timing Specifications
Tables 5â50 and 5â51 show the LVDS timing budget for Cyclone II
devices. Cyclone II devices support LVDS receivers at data rates up to
805 Mbps, and LVDS transmitters at data rates up to 640 Mbps.
Table 5â50. LVDS Transmitter Timing Specification (Part 1 of 2)
â6 Speed Grade
â7 Speed Grade
â8 Speed Grade
Symbol Conditions
Min
Typ
Max
(1)
Max
(2)
Min
Typ
Max
(1)
Max
(2)
Min
Typ
Max
(1)
Max
(2)
Unit
fH S C L K
Ã10
(input
clock
Ã8
fre-
quency)
Ã7
10 â 320 320 10 â 275 320 10 â 155.5 320 MHz
(4) (6)
10 â 320 320 10 â 275 320 10 â 155.5 320 MHz
(4) (6)
10 â 320 320 10 â 275 320 10 â 155.5 320 MHz
(4) (6)
Ã4
10 â 320 320 10 â 275 320 10 â 155.5 320 MHz
(4) (6)
Ã2
10 â 320 320 10 â 275 320 10 â 155.5 320 MHz
(4) (6)
Ã1
10 â 402.5 402.5 10 â 402.5 402.5 10 â 402.5 402.5 MHz
(8) (8)
HSIODR Ã10
100 â 640 640 100 â 550 640 100 â 311 550 Mbps
(5) (7)
Ã8
80 â 640 640 80 â 550 640 80 â 311 550 Mbps
(5) (7)
Ã7
70 â 640 640 70 â 550 640 70 â 311 550 Mbps
(5) (7)
Ã4
40 â 640 640 40 â 550 640 40 â 311 550 Mbps
(5) (7)
Ã2
20 â 640 640 20 â 550 640 20 â 311 550 Mbps
(5) (7)
Ã1
10 â 402.5 402.5 10 â 402.5 402.5 10 â 402.5 402.5 Mbps
(9) (9)
tD U T Y
â
45 â 55 â 45 â 55 â 45 â 55 â %
â
â â â 160 â â â 312.5 â â â 363.6 ps
TCCS
(3)
â
ââ
200
ââ
200
ââ
200
ps
Output
â
ââ
500
ââ
500
ââ
550 (10)
ps
jitter
(peak to
peak)
tR I S E
20â80% 150 200
250
150 200
250
150 200
250 (11)
ps
Altera Corporation
February 2008
5â61
Cyclone II Device Handbook, Volume 1
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