EP4SGX180DF29I3N Datasheet, PDF (17/82 Pages) Altera Corporation – Stratix IV Device Handbook Volume 4: Device Datasheet and Addendum

Chapter 1: DC and Switching Characteristics for Stratix IV Devices
1–9
Electrical Characteristics
Table 1–11. OCT Calibration Accuracy Specifications for Stratix IV Devices (Part 2 of 2) ⁽¹⁾
Symbol
Description
Conditions
25- R_{S_left_shift}
3.0, 2.5, 1.8, 1.5, 1.2
Internal left shift series
termination with calibration
(25- R_{S_left_shift} setting)
V_CCIO = 3.0, 2.5, 1.8,
1.5, 1.2 V
Notes to Table 1–11:
(1) OCT calibration accuracy is valid at the time of calibration only.
(2) 25- R_S is not supported for 1.5 V and 1.2 V in Row I/O.
(3) 20- R_S is not supported for 1.5 V and 1.2 V in Row I/O.
Calibration Accuracy
Unit
C2
C3,I3, M3 C4,I4
± 10
± 10
± 10 %
The calibration accuracy for calibrated series and parallel OCTs are applicable at the
moment of calibration. When process, voltage, and temperature (PVT) conditions
change after calibration, the tolerance may change. Table 1–12 lists the Stratix IV OCT
without calibration resistance tolerance to PVT changes.
Table 1–12. OCT Without Calibration Resistance Tolerance Specifications for Stratix IV Devices
Symbol
Description
Conditions
Resistance Tolerance
Unit
C2
C3,I3, M3 C4,I4
25- R_S
3.0 and 2.5
25- R_S
1.8 and 1.5
25- R_S
1.2
50- R_S
3.0 and 2.5
50- R_S
1.8 and 1.5
50- R_S
1.2
100- R_D
2.5
Internal series termination
without calibration (25-
setting)
V_CCIO = 3.0 and 2.5 V
± 30
Internal series termination
without calibration (25-
setting)
V_CCIO = 1.8 and 1.5 V
± 30
Internal series termination
without calibration (25-
setting)
V_CCIO = 1.2 V
± 35
Internal series termination
without calibration (50-
setting)
V_CCIO = 3.0 and 2.5 V
± 30
Internal series termination
without calibration (50-
setting)
V_CCIO = 1.8 and 1.5 V
± 30
Internal series termination
without calibration (50-
setting)
V_CCIO = 1.2 V
± 35
Internal differential
termination (100- setting)
V_CCIO = 2.5 V
± 25
± 40
± 40 %
± 40
± 40 %
± 50
± 50 %
± 40
± 40 %
± 40
± 40 %
± 50
± 50 %
± 25
± 25 %
January 2014 Altera Corporation
Stratix IV Device Handbook
Volume 4: Device Datasheet and Addendum