 English |
|
|
|
|
|
|
|
| ISL54213 Datasheet, PDF (6/15 Pages) Intersil Corporation – MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Mute Function | |||
| |||
| ◁ |
ISL54213
Test Circuits and Waveforms
VINH
LOGIC
INPUT
VINL
50%
tOFF
tr < 20ns
tf < 20ns
SWITCH
INPUT
VINPUT
SWITCH
OUTPUT 0V
VOUT
90%
tON
90%
Logic input waveform is inverted for switches that have the opposite
logic sense.
VDD
C
VINPUT
SWITCH
INPUT
CTRL
AUDIO OR USB
IN
COMx
VIN
GND
VOUT
RL
CL
50Ω 10pF
Repeat test for all switches. CL includes fixture and stray
capacitance.
VOUT
=
V (INPUT)
---------R-----L---------
RL + rON
FIGURE 1A. MEASUREMENT POINTS
FIGURE 1. SWITCHING TIMES
FIGURE 1B. TEST CIRCUIT
VDD C
LOGIC
INPUT
VINH
VINL
VOUT
SWITCH
OUTPUT
0V
90%
VINPUT
VIN
CTRL
D- OR D+
L OR R
IN
GND
COMx
VOUT
RL
50W
CL
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
VDD
C
rON = V1/40mA
VL OR VR
CTRL
L OR R
40mA
V1
COMx
GND
0V OR
IN FLOAT
rON = V1/40mA
VD- OR VD+
CTRL
D- OR D+
40mA
V1
COMx
GND
IN VDD
Repeat test for all switches.
FIGURE 3. AUDIO rON TEST CIRCUIT
6
Repeat test for all switches.
FIGURE 4. USB rON TEST CIRCUIT
FN6663.0
March 26, 2008
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese