EP2S15 ALTERA [Altera Corporation], EP2S15 Datasheet - Page 223

• Manufacturer Part Number: EP2S15
• Description: Stratix II Device Family
• Manufacturer: ALTERA [Altera Corporation]

High-Speed I/O
Specifications
Altera Corporation
May 2007
t
f
J
W
t
t
Timing unit interval (TUI)
f
f
Channel-to-channel skew (TCCS)
Sampling window (SW)
Input jitter
Output jitter
t
t
f
f
C
H S C L K
R I S E
F A L L
H S D R
H S D R D P A
DUTY
L O C K
H S C L K
H S C L K
Table 5–88. High-Speed Timing Specifications & Definitions
High-Speed Timing Specifications
Table 5–89. High-Speed I/O Specifications for -3 Speed Grade (Part 1 of 2)
(clock frequency)
= f
Symbol
H S D R
/ W
W = 2 to 32 (LVDS, HyperTransport technology)
(3)
W = 1 (SERDES bypass, LVDS only)
W = 1 (SERDES used, LVDS only)
Table 5–88
Table 5–89
grade Stratix II devices.
High-speed receiver/transmitter input and output clock period.
High-speed receiver/transmitter input and output clock frequency.
Deserialization factor (width of parallel data bus).
PLL multiplication factor.
Low-to-high transmission time.
High-to-low transmission time.
The timing budget allowed for skew, propagation delays, and data
sampling window. (TUI = 1/(Receiver Input Clock Frequency ×
Multiplication Factor) = t
Maximum/minimum LVDS data transfer rate (f
Maximum/minimum LVDS data transfer rate (f
The timing difference between the fastest and slowest output edges,
including t
measurement.
The period of time during which the data must be valid in order to capture
it correctly. The setup and hold times determine the ideal strobe position
within the sampling window.
Peak-to-peak input jitter on high-speed PLLs.
Peak-to-peak output jitter on high-speed PLLs.
Duty cycle on high-speed transmitter output clock.
Lock time for high-speed transmitter and receiver PLLs.
provides high-speed timing specifications definitions.
shows the high-speed I/O timing specifications for -3 speed
Conditions
C O
variation and clock skew. The clock is included in the TCCS
C
/w).
Definitions
Stratix II Device Handbook, Volume 1
DC & Switching Characteristics
Min
150
16
16
-3 Speed Grade
Notes
H S D R
H S D R D PA
Typ
= 1/TUI), non-DPA.
(1),
Max
520
500
717
= 1/TUI), DPA.
(2)
MHz
MHz
MHz
Unit
5–87