Page 8
Electrical Characteristics
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 Cyclone 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 Cyclone V Devices
Calibration Accuracy
–C7, –I7
Symbol
Description
Conditions (V)
Unit
%
–C6
–C8, –A7
Internal series termination
with calibration
(25-Ω setting)
V
CCIO = 3.0, 2.5,
1.8, 1.5, 1.2
25-Ω RS
15
15
15
15
15
Internal series termination
with calibration
(50-Ω setting)
V
CCIO = 3.0, 2.5,
1.8, 1.5, 1.2
50-Ω RS
15
15
15
15
%
Internal series termination
V
CCIO = 1.5, 1.35,
1.25, 1.2
34-Ω and 40-Ω RS with calibration
%
(34-Ω and 40-Ω setting)
Internal series termination
with calibration
(48-Ω, 60-Ω, and 80-Ω
setting)
48-Ω, 60-Ω, and
80-Ω RS
V
CCIO = 1.2
15
15
15
%
%
%
Internal parallel
termination with calibration
(50-Ω setting)
V
CCIO = 2.5, 1.8,
1.5, 1.2
50-Ω RT
-10 to +40
-10 to +40
-10 to +40
-10 to +40
-10 to +40
-10 to +40
Internal parallel
20-Ω, 30-Ω,
40-Ω, 60-Ω, and
120-Ω RT
termination with calibration
(20-Ω, 30-Ω, 40-Ω,
60-Ω, and 120-Ω setting)
V
CCIO = 1.5, 1.35,
1.25
Internal parallel
60-Ω and 120-Ω RT termination with calibration
V
CCIO = 1.2
-10 to +40
15
-10 to +40
15
-10 to +40
15
%
%
(60-Ω and 120-Ω setting)
Internal left shift series
termination with calibration
(25-Ω RS_left_shift setting)
V
CCIO = 3.0, 2.5,
1.8, 1.5, 1.2
25-Ω RS_left_shift
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.
Cyclone V Device Datasheet
June 2013 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
