Electrical Characteristics
Page 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
Resistance Tolerance
Symbol
Description
Internal series termination
without calibration
(25-Ω setting)
Internal series termination
without calibration
(25-Ω setting)
Internal series termination
without calibration
(25-Ω setting)
Internal series termination
without calibration (50-Ω
setting)
Internal series termination
without calibration
(50-Ω setting)
Internal series termination
without calibration
(50-Ω setting)
Internal differential
termination (100-Ω
setting)
Conditions (V)
–C6
25-Ω R
S
V
CCIO
= 3.0 and 2.5
±30
–C7, –I7
±40
–C8, –A7
±40
%
Unit
25-Ω R
S
V
CCIO
= 1.8 and 1.5
±30
±40
±40
%
25-Ω R
S
V
CCIO
= 1.2
±35
±50
±50
%
50-Ω R
S
V
CCIO
= 3.0 and 2.5
±30
±40
±40
%
50-Ω R
S
V
CCIO
= 1.8 and 1.5
±30
±40
±40
%
50-Ω R
S
V
CCIO
= 1.2
±35
±50
±50
%
100-Ω R
D
V
CCIO
= 2.5
±25
±40
±40
%
Use
to determine the OCT variation after power-up calibration and
to determine the OCT variation without recalibration.
Equation 1. OCT Variation Without Recalibration
dR
dR
-
R
OCT
=
R
SCAL
⎛
1
+
〈
------
× ΔT〉 ± 〈
-------
× ΔV 〉⎞
⎝
⎠
dT
dV
Notes to
(1) The R
OCT
value calculated from
shows the range of OCT resistance with the variation of temperature and
V
CCIO
.
(2) R
SCAL
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 V
CCIO
at power up.
(5) dR/dT is the percentage change of R
SCAL
with temperature.
(6) dR/dV is the percentage change of R
SCAL
with voltage.
July 2014
Altera Corporation
Cyclone V Device Datasheet
INTEL [ INTEL CORPORATION ]
