Operating Conditions
Table 6–7. Stratix GX Transceiver Block AC Specification (Part 7 of 7)
-6 Commercial &
Industrial Speed
-7 Commercial &
Industrial Speed
Grade
-5 Commercial
Speed Grade (1)
Symbol /
Description
Grade
Conditions
Unit
(1)
(1)
Min Typ
Max
Min Typ
Max
Min Typ
Max
Outputreturn 100 MHz to
loss 2.5 GHz
–10
–10
–10
dB
Notes to Table 6–7:
(1) All numbers for the -6 and -7 speed grades are for both commercial and industrial unless specified otherwise in the
Conditions column. Speed grade -5 is available only for commercial specifications.
(2) Not all VID and equalizer values will get the same results. The condition for the specification was that the VID before
jitter was added is 1,000 mV and the equalizer was set to the maximum condition of 111 (equalizer control setting
= 4 in the MegaWizard Plug-In Manager).
(3) Number of parallel clocks.
(4) Receive latency delay from serial receiver indata to parallel receiver data.
(5) Per IEEE Standard 802.3ae @ 3.125 for –5 and –6.
(6) The specification is for channel aligner tolerance.
(7) UI = Unit Interval.
(8) Run-length conditions are true for all data rates, but the average transition density must be enough to keep the
receiver phase aligned and the overall data must be DC balanced.
(9) Not all combinations of VOD and pre-emphasis will get the same results.
(10) The numbers are for 3.125-Gbps data rate for –5 and –6 devices and 2.5 Gbps for –7 devices.
(11) Transmitter latency delay from parallel transceiver data to serial transceiver out data.
Table 6–8. LVTTL Specifications
Symbol
Parameter
Output supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Conditions
Minimum
3.0
Maximum
3.6
Units
VCCIO
V
V
V
V
V
VIH
VIL
1.7
4.1
–0.5
2.4
0.7
VOH
VOL
IOH = –4 to –24 mA (1)
IOL = 4 to 24 mA (1)
0.45
Table 6–9. LVCMOS Specifications
Symbol
Parameter
Conditions
Minimum
3.0
Maximum
3.6
Units
VCCIO
Output supply voltage
High-level input voltage
Low-level input voltage
V
V
V
VIH
VIL
1.7
4.1
–0.5
0.7
6–10
Altera Corporation
August 2005
Stratix GX Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
