Arria® V Device Datasheet

ID 683022
Date 5/23/2023
Public
Document Table of Contents

2.1.1.4.5. On-Chip Termination (OCT) Specifications

If you enable OCT calibration, calibration is automatically performed at power-up for I/Os connected to the calibration block.
Table 88.  OCT Calibration Accuracy Specifications for Arria V GZ DevicesOCT calibration accuracy is valid at the time of calibration only.
Symbol Description Conditions Calibration Accuracy Unit
C3, I3L C4, I4
25-Ω RS Internal series termination with calibration (25-Ω setting) VCCIO = 3.0, 2.5, 1.8, 1.5, 1.2 V ±15 ±15 %
50-Ω RS Internal series termination with calibration (50-Ω setting) VCCIO = 3.0, 2.5, 1.8, 1.5, 1.2 V ±15 ±15 %
34-Ω and 40-Ω RS Internal series termination with calibration (34-Ω and 40-Ω setting) VCCIO = 1.5, 1.35, 1.25, 1.2 V ±15 ±15 %
48-Ω, 60-Ω, 80-Ω, and 240-Ω RS Internal series termination with calibration (48-Ω, 60-Ω, 80-Ω, and 240-Ω setting) VCCIO = 1.2 V ±15 ±15 %
50-Ω RT Internal parallel termination with calibration (50-Ω setting) VCCIO = 2.5, 1.8, 1.5, 1.2 V –10  to +40 –10  to +40 %
20-Ω, 30-Ω, 40-Ω, 60-Ω, and 120-Ω RT Internal parallel termination with calibration (20-Ω , 30-Ω, 40-Ω, 60-Ω, and 120-Ω setting) VCCIO = 1.5, 1.35, 1.25 V –10  to +40 –10  to +40 %
60-Ω and 120-Ω RT Internal parallel termination with calibration (60-Ω and 120-Ω setting) VCCIO = 1.2 –10  to +40 –10  to +40 %
25-Ω RS_left_shift Internal left shift series termination with calibration (25-Ω RS_left_shift setting) VCCIO = 3.0, 2.5, 1.8, 1.5, 1.2 V ±15 ±15 %
Table 89.  OCT Without Calibration Resistance Tolerance Specifications for Arria V GZ Devices
Symbol Description Conditions Resistance Tolerance Unit
C3, I3L C4, I4
25-Ω R, 50-Ω RS Internal series termination without calibration (25-Ω setting) VCCIO = 3.0 and 2.5 V ±40 ±40 %
25-Ω RS Internal series termination without calibration (25-Ω setting) VCCIO = 1.8 and 1.5 V ±40 ±40 %
25-Ω RS Internal series termination without calibration (25-Ω setting) VCCIO = 1.2 V ±50 ±50 %
50-Ω RS Internal series termination without calibration (50-Ω setting) VCCIO = 1.8 and 1.5 V ±40 ±40 %
50-Ω RS Internal series termination without calibration (50-Ω setting) VCCIO = 1.2 V ±50 ±50 %
100-Ω RD Internal differential termination (100-Ω setting) VCCIO = 2.5 V ±25 ±25 %
Figure 23. OCT Variation Without Re-Calibration for Arria V GZ Devices


Table 90.  OCT Variation after Power-Up Calibration for Arria V GZ DevicesValid for a VCCIO range of ±5% and a temperature range of 0° to 85°C.
Symbol Description VCCIO (V) Typical Unit
dR/dV OCT variation with voltage without re-calibration 3.0 0.0297 %/mV
2.5 0.0344
1.8 0.0499
1.5 0.0744
1.2 0.1241
dR/dT OCT variation with temperature without re-calibration 3.0 0.189 %/°C
2.5 0.208
1.8 0.266
1.5 0.273
1.2 0.317