PI3USB223 Datasheet, PDF (8/10 Pages) Pericom Semiconductor Corporation – USB 2.0 High-Speed and Audio Switches with Negative Signal Capability

PI3USB223
USB 2.0 High-Speed and Audio Switches
with Negative Signal Capability
R_GEN
L/D
D/L
V_GEN
V_bus
Logic
Input
V_OUT
Logic
Input
OFF
ON
C_L
1nF
OFF
∆V_OUT
Q = (∆V_OUT)(C_L)
Figure 4. Charge Injection Test
50Ω
Signal
Generator
Analyzer
CL
5pF
V_DD
10nF
D/L ^VDD
V_bus
D/L
GND
RL
50Ω
Logic Input
0V or V_IH
Figure 5. Off Isolation
V_DD
10nF
Signal
50W
L
V_{DD D/L}
Generator
D
50W
Analyzer
CL
5pF
GND
V_bus
RL
50W
Figure 6. Crosstalk
Capacitance
Meter
f = 1 MHz
V_DD
10nF
L/D ^VDD
V_bus
L/D
GND
Logic Input
0V or V_IH
Capacitance
Meter
f = 1 MHz
V_DD
10nF
L/D ^VDD
V_bus
L/D
GND
Logic Input
0V or V_IH
Figure 7. Channel Off Capacitance
Figure 8. Channel On Capacitance
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15-0127
8
www.pericom.com 10/27/15