Stratix High-Speed Differential I/O Bit-Position Calculator

This calculator uses preliminary device data to calculate bit-positions.

The calculator will be updated with characterization data as soon as the data is available.

Choose the deserialization factor and specify the data rate or the time unit interval of the data.

Symbol	Description	Unit
f_HSSDR	High-Speed Serial Data Rate	Mbps
TUI	Time unit interval for serial data input	ns
J	Deserialization Factor	-

The HSDI receiver and transmitter bit-positions are calculated based on the serial data rate.

*Table 1: HSDI Receiver Switching Characteristics for 1 to 4 Mode*
Symbol	Parameter	Min	Typ	Max	Unit
RSPos0	Receiver input strobe position for bit 0	0.38	0.60	0.82	ns
RSPos1	Receiver input strobe position for bit 1	1.56	1.78	2.00	ns
RSPos2	Receiver input strobe position for bit 2	2.75	2.97	3.20	ns
RSPos3	Receiver input strobe position for bit 3	3.94	4.16	4.38	ns

*Table 2: HSDI Transmitter Switching Characteristics for 4 to 1 Mode*
Symbol	Parameter	Min	Typ	Max	Unit
TPPos0	Transmitter output pulse position for bit 0	-0.20	0.00	0.20	ns
TPPos1	Transmitter output pulse position for bit 1	0.99	1.19	1.39	ns
TPPos2	Transmitter output pulse position for bit 2	2.18	2.38	2.58	ns
TPPos3	Transmitter output pulse position for bit 3	3.37	3.57	3.77	ns