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| ISL54228 Datasheet, PDF (7/17 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) | |||
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ISL54228
Test Circuits and Waveforms (Continued)
VDD
C
rON = V1/17mA
VHSDX
COMx
17mA
V1
Dx
GND
OE VDD
Repeat test for all switches.
FIGURE 2. rON TEST CIRCUIT
VDD
C
VDD
C
IMPEDANCE
ANALYZER
COMx
Dx
GND
OE
0V OR
VDD
Repeat test for all switches.
FIGURE 3. CAPACITANCE TEST CIRCUIT
SIGNAL
GENERATOR
COM+
D+
50Ω
OE
VIN
ANALYZER
D-
COM-
NC
GND
RL
Signal direction through switch is reversed, worst case values
are recorded. Repeat test for all switches.
FIGURE 4. CROSSTALK TEST CIRCUIT
7
FN7628.0
July 29, 2010
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