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| ISL54208 Datasheet, PDF (6/15 Pages) Intersil Corporation – Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability | |||
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ISL54208
Test Circuits and Waveforms (Continued)
VDD
C
VDD
C
RON = V1/100mA
CTRL
NCx
VNCx
V1
IN
OV
100mA
COMx
GND
RON = V1/40mA
VNOx
CTRL
NOx
40mA
V1
COMx
GND
IN VDD
Repeat test for all switches.
FIGURE 3. AUDIO/VIDEO RON TEST CIRCUIT
Repeat test for all switches.
FIGURE 4. USB RON TEST CIRCUIT
IMPEDANCE
ANALYZER
VDD
C
CTRL
NCx or NOx
COMx
GND
IN
0V or
VDD
Repeat test for all switches.
FIGURE 5. CAPACITANCE TEST CIRCUIT
VDD
C
SIGNAL
GENERATOR
0V
CTRL
NCx
COMx
75Ω
IN
ANALYZER
COMx
NCx
NC
GND
RL
Signal direction through switch is reversed, worst case values
are recorded. Repeat test for all switches.
FIGURE 6. NCx CROSSTALK TEST CIRCUIT
6
FN6410.0
December 18, 2006
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