isl54214 Intersil Corporation, isl54214 Datasheet - Page 7

• Manufacturer Part Number: isl54214
• Description: Usb 2.0 High-speed X 2channels/stereo Audio Dual Sp3t Dual 3 To 1 Multiplexer
• 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
OUTPUT
OUTPUT
FIGURE 1A. ADDRESS t
SWITCH
SWITCH
SWITCH
LOGIC
INPUT
LOGIC
INPUT
INPUT
V
R
r
ON
V
V
C0,C1
C0,C1
V
V
= V
INPUT
OUT
V
V
FIGURE 2A. MEASUREMENT POINTS
FIGURE 3. AUDIO r
0V
40mA
0V
C0
C1
1
/60mA
V
1
t
L OR R
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
C0H
C1H
ISL54214
Repeat test for all switches. C
capacitance.
Repeat test for all switches. C
capacitance.
V
V
Repeat test for all switches.
INPUT
D- OR
SWITCH
LOGIC
LOGIC
INPUT
INPUT
INPUT
V
D+
FIGURE 1B. ADDRESS t
r
ON
V
INPUT
= V
FIGURE 4. USB r
40mA
1
/40mA
V
2D- OR 2D+
1D- OR 1D+
L OR R
C0, C1
FIGURE 2B. TEST CIRCUIT
OUT
C0,C1
=
V
V
1
V (INPUT)
DD
V
GND
GND
DD
L
L
COMx
D- OR D+
includes fixture and stray
includes fixture and stray
ON
TRANS
C
C
TEST CIRCUIT
COMx
GND
----------------------- -
R
COMx
L
R
+
TEST CIRCUIT
L
V
r
ON
DD
50Ω
50Ω
R
C0
C1
R
C
L
December 11, 2008
V
L
OUT
V
OUT
10pF
C
FN6816.0
L
10pF
C
V
0V
L
DD