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| ISL54220 Datasheet, PDF (7/18 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) Multiplexer | |||
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ISL54220
Test Circuits and Waveforms (Continued)
VDD C
LOGIC
INPUT
VDD
0V
SWITCH
OUTPUT
VOUT 0V
90%
VINPUT
VIN
HSD2x
HSD1x
SEL
GND
Dx
OE
VOUT
RL
CL
50Ω
10pF
tD
Repeat test for all switches. CL includes fixture and stray
capacitance.
FIGURE 2A. MEASUREMENT POINTS
FIGURE 2B. TEST CIRCUIT
FIGURE 2. BREAK-BEFORE-MAKE TIME
VDD
C
rON = V1/40mA
VHSDX
HSDx
40mA
V1
Dx
GND
SEL OV OR VDD
OE
Repeat test for all switches.
FIGURE 3. rON TEST CIRCUIT
7
FN6819.1
February 4, 2010
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