ISL54228 Datasheet, PDF (8/17 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)

ISL54228
Test Circuits and Waveforms (Continued)
V_{DD C}
t_ri
DIN+
DIN-
OUT+
OUT-
10%
90%
50%
t_{skew_i}
90% _50%
10%
t_fi
t_ro
90%
10%
90%
50%
t_{skew_o}
50%
t_f0
10%
V_DD
DIN+
DIN-
15.8Ω
143Ω
15.8Ω
143Ω
OE
COM-
COM+
D-
OUT+
C_L
45Ω
D+
OUT-
C_L
45Ω
GND
|tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals.
|tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals.
|tskew_0| Change in Skew through the Switch for Output Signals.
|tskew_i| Change in Skew through the Switch for Input Signals.
FIGURE 5A. MEASUREMENT POINTS
FIGURE 5. SKEW TEST
FIGURE 5B. TEST CIRCUIT
8
FN7628.0
July 29, 2010