Agilex™ 5 FPGAs and SoCs Device Data Sheet

ID 813918
Date 8/05/2024
Public
Document Table of Contents

HSIO OCT Calibration Accuracy 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 19.  HSIO OCT Calibration Accuracy Specifications

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.

These specifications require RZQ reference accuracy of 240 Ω ±1%.

For specification status, see the Data Sheet Status table

Symbol Description Condition (V) Calibration Accuracy Unit
34-Ω and 40-Ω RS 56 Internal series termination with calibration (34-Ω and 40-Ω setting) SSTL-12, HSTL-12, HSUL-12, and POD12 I/O standards 20 %
34-Ω and 40-Ω RS 56 Internal series termination with calibration (34-Ω and 40-Ω setting) POD11 and LVSTL11 I/O standards 20 %
34-Ω and 40-Ω RS 56 Internal series termination with calibration (34-Ω and 40-Ω setting) LVSTL105 I/O standard 20 %
40-Ω RS 56 Internal series termination with calibration (40-Ω setting) LVSTL700 I/O standard 20 %
45-Ω RS Internal series termination with calibration (45-Ω setting) DPHY and SLVS400 I/O standards –20 to +25 %
50-Ω and 60-Ω RT 56 Internal parallel termination with calibration (50-Ω and 60-Ω setting) SSTL-12 and HSTL-12 I/O standards 20 %
40-Ω, 50-Ω, and 60-Ω RT 56 Internal parallel termination with calibration (40-Ω, 50-Ω, and 60-Ω setting) POD11 and POD12 I/O standards 20 %
LVSTL11, LVSTL105, and LVSTL700 I/O standards 20 %
100-Ω RD Internal differential termination with calibration (100-Ω setting) DPHY and SLVS400 I/O standards –20 to +25 %
56 This specification applies to both single-ended and pseudo-differential I/O buffers.