ISL54217 Intersil Corporation, ISL54217 Datasheet - Page 7

• Manufacturer Part Number: ISL54217
• Description: USB 2.0 High-Speed x 2Channels/Stereo Audio Dual SP3T
• Manufacturer: Intersil Corporation

Test Circuits and Waveforms
Logic input waveform is inverted for switches that have the opposite
logic sense.
Repeat test for all switches.
V
L OR R
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OUTPUT
OUTPUT
FIGURE 1A. ADDRESS t
SWITCH
SWITCH
SWITCH
LOGIC
INPUT
LOGIC
INPUT
INPUT
r
ON
V
V
C0,C1
C0,C1
V
V
= V
INPUT
V
V
OUT
FIGURE 2A. MEASUREMENT POINTS
FIGURE 3. AUDIO r
0V
60mA
0V
C0
C1
1
/60mA
V
1
L OR R
t
ON
TRANS
COMx
50%
7
ON
90%
MEASUREMENT POINTS
GND
TEST CIRCUIT
t
OFF
V
t
D
OUT
V
DD
C0
C1
C
FIGURE 2. BREAK-BEFORE-MAKE TIME
t
t
FIGURE 1. SWITCHING TIMES
90%
r
f
< 20ns
< 20ns
90%
V
V
COH
C1H
ISL54217
Repeat test for all switches. C
capacitance.
Repeat test for all switches. C
capacitance.
V
V
D- OR D+
INPUT
Repeat test for all switches.
SWITCH
LOGIC
LOGIC
INPUT
INPUT
INPUT
r
FIGURE 1B. ADDRESS t
ON
V
INPUT
= V
40mA
FIGURE 4. USB r
1
/40mA
V
2D- OR 2D+
1D- OR 1D+
C0, C1
FIGURE 2B. TEST CIRCUIT
L OR R
OUT
C0,C1
V
1
=
V
V (INPUT)
DD
V
GND
D- OR D+
COMx
GND
DD
L
L
includes fixture and stray
includes fixture and stray
ON
TRANS
C
C
GND
TEST CIRCUIT
COMx
----------------------- -
R
COMx
L
R
+
V
TEST CIRCUIT
L
DD
r
ON
C1
C0
50Ω
C
50Ω
R
R
L
December 11, 2008
V
L
OUT
V
V
V
V
V
OUT
C0L
C1H
C0H
C1L
10pF
C
AND
FN6817.0
OR
AND
L
10pF
C
L