Electrical Characteristics
Page 9
Table 9 lists the Cyclone V OCT without calibration resistance tolerance to PVT
changes.
Table 9. OCT Without Calibration Resistance Tolerance Specifications for Cyclone V Devices—Preliminary
Resistance Tolerance
Symbol
Description
Conditions (V)
CCIO = 3.0 and 2.5
CCIO = 1.8 and 1.5
Unit
%
–C6
–C7, –I7
–C8, –A7
Internal series termination
without calibration
(25-Ω setting)
25-Ω RS
V
V
30
40
40
Internal series termination
without calibration
(25-Ω setting)
25-Ω RS
25-Ω RS
50-Ω RS
50-Ω RS
50-Ω RS
100-Ω RD
30
35
30
30
35
25
40
50
40
40
50
40
40
50
40
40
50
40
%
Internal series termination
without calibration
(25-Ω setting)
VCCIO = 1.2
%
Internal series termination
without calibration (50-Ω
setting)
V
CCIO = 3.0 and 2.5
CCIO = 1.8 and 1.5
%
Internal series termination
without calibration
(50-Ω setting)
V
%
Internal series termination
without calibration
(50-Ω setting)
V
CCIO = 1.2
CCIO = 2.5
%
Internal differential
termination (100-Ω
setting)
V
%
Use Table 10 to determine the OCT variation after power-up calibration and
Equation 1 to determine the OCT variation without recalibration.
(2), (3),
Equation 1. OCT Variation Without Recalibration (1),
(4), (5), (6)—Preliminary
dR
dT
dR
dV
⎛
⎞
⎠
ROCT = RSCAL 1 + 〈------ × ΔT〉 〈------- × ΔV〉
⎝
Notes to Equation 1:
(1) The ROCT value calculated from Equation 1 shows the range of OCT resistance with the variation of temperature and
VCCIO
.
(2) RSCAL is the OCT resistance value at power-up.
(3) ΔT is the variation of temperature with respect to the temperature at power up.
(4) ΔV is the variation of voltage with respect to VCCIO at power up.
(5) dR/dT is the percentage change of RSCAL with temperature.
(6) dR/dV is the percentage change of RSCAL with voltage.
June 2013 Altera Corporation
Cyclone V Device Datasheet
ALTERA [ ALTERA CORPORATION ]
