Teledyne-lecroy QPHY-LPDDR2 Instrukcja Użytkownika Pobierz pdf (Strona 49)

QPHY-LPDDR2 Software Option

QPHY-LPDDR2-OM-G Rev B

Figure 28. reference table for tIS tIH [JESD209-2D table 104]

Setup (tIS) nominal slew rate for a rising signal is defined as the slew rate between the last crossing of

VREF(dc) and the first crossing of VIH(ac)min. Setup (tIS) nominal slew rate for a falling signal is defined

as the slew rate between the last crossing of VREF(dc) and the first crossing of VIL(ac)max.

Jedec JESD209-2D Specific page 203 with tables 105 and 106 explain the limit compensation versus the

slewrate of the measured signals.

tIH(base) - Address and Control Input Hold Time

Figure 29. Command Input Setup and hold timing [JESD209-2D figure 22]

§ § §

1 2 ... 44 45 46 47 48 49

Brak uwag

Teledyne-lecroy QPHY-LPDDR2 Instrukcja Użytkownika Strona 49