Electrical Characteristics
Page 9
OCT Specifications
If you enable on-chip termination (OCT) calibration, calibration is automatically
performed at power up for I/Os connected to the calibration block.
Table 8 lists the Arria V OCT termination calibration accuracy specifications. The OCT
calibration accuracy is valid at the time of calibration only.
Table 8. OCT Calibration Accuracy Specifications for Arria V Devices
Calibration Accuracy
Symbol
Description
Conditions (V)
Unit
%
I3, C4
I5, C5
C6
Internal series termination
with calibration
(25-Ωsetting)
V
V
CCIO = 3.0, 2.5, 1.8,
1.5, 1.2
25-ΩRS
50-ΩRS
15
15
15
15
15
Internal series termination
with calibration
(50-Ωsetting)
CCIO = 3.0, 2.5, 1.8,
1.5, 1.2
15
15
15
15
%
Internal series termination
with calibration
(34-Ωand 40-Ωsetting)
VCCIO = 1.5, 1.35,
1.25, 1.2
34-Ωand 40-ΩRS
%
Internal series termination
with calibration
(48-Ω, 60-Ω, and 80-Ω
setting)
48-Ω, 60-Ω, and
80-ΩRS
VCCIO = 1.2
15
15
15
%
%
Internal parallel
termination with
calibration (50-Ωsetting)
V
CCIO = 2.5, 1.8, 1.5,
1.2
50-ΩRT
–10 to +40 –10 to +40 –10 to +40
Internal parallel
termination with
calibration
(20-Ω, 30-Ω, 40-Ω,
60-Ω, and 120-Ωsetting)
20-Ω, 30-Ω,
40-Ω,60-Ω, and
120-ΩRT
VCCIO = 1.5, 1.35, 1.25 –10 to +40 –10 to +40 –10 to +40
%
Internal parallel
termination with
calibration
60-Ωand 120-Ω RT
VCCIO = 1.2
–10 to +40 –10 to +40 –10 to +40
%
%
(60-Ωand 120-Ωsetting)
Internal left shift series
termination with
calibration
VCCIO = 3.0, 2.5, 1.8,
1.5, 1.2
25-ΩRS_left_shift
15
15
15
(25-ΩRS_left_shift setting)
1
Calibration accuracy for the calibrated on-chip series termination (RS OCT) and
on-chip parallel termination (RT OCT) are applicable at the moment of calibration.
When process, voltage, and temperature (PVT) conditions change after calibration,
the tolerance may change.
February 2014 Altera Corporation
Arria V GX, GT, SX, and ST Device Datasheet
ALTERA [ ALTERA CORPORATION ]
