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| ISL54226_10 Datasheet, PDF (7/18 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated Charger Port Detection | |||
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ISL54226
Test Circuits and Waveforms (Continued)
VDD
C
rON = V1/17mA
VHSDX
COMx
17mA
V1
Dx
GND
OE/ALM VDD
Repeat test for all switches.
FIGURE 2. rON TEST CIRCUIT
VDD
C
VDD
C
IMPEDANCE
ANALYZER
COMx
OE/ALM
Dx
GND
0V OR
VDD
Repeat test for all switches.
FIGURE 3. CAPACITANCE TEST CIRCUIT
SIGNAL
GENERATOR
COM+
D+
50Ω
OE/ALM
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
FN7614.0
July 29, 2010
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