isl54210 Intersil Corporation, isl54210 Datasheet - Page 6

• Manufacturer Part Number: isl54210
• Description: Mp3/usb 2.0 High Speed Switch With Negative Signal Handling/click And Pop Suppression
• Manufacturer: Intersil Corporation

Test Circuits and Waveforms
L
logic sense.
V
ogic input waveform is inverted for switches that have the opposite
REPEAT TEST FOR ALL SWITCHES
L
OR R
OUTPUT
SWITCH
SWITCH
LOGIC
INPUT
INPUT
r
ON
V
V
BUSH
BUSL
V
= V
INPUT
FIGURE 1A. MEASUREMENT POINTS
40mA
FIGURE 2. AUDIO r
0V
1
/40mA
V
1
t
COMx
L OR R
ON
50%
6
ON
CTRL
GND
90%
TEST CIRCUIT
t
OFF
V
V
OUT
DD
V
BUS
C
V
BUSL
t
t
FIGURE 1. SWITCHING TIMES
90%
r
f
< 20ns
< 20ns
ISL54210
Repeat test for all switches. C
capacitance.
REPEAT TEST FOR ALL SWITCHES
V
SWITCH
D- or D+
V
INPUT
BUS
r
ON
V
INPUT
= V
FIGURE 3. USB r
Icom
1
V
/ Icom
FIGURE 1B. TEST CIRCUIT
OUT
AUDIO OR USB
V
CTRL
BUS
=
V
1
V
L
V
DD
includes fixture and stray
(INPUT)
GND
COMx
D- OR D+
ON
C
TEST CIRCUIT
CTRL
GND
COMx
----------------------- -
R
L
R
+
L
V
r
ON
DD
V
BUS
50Ω
R
C
L
V
OUT
V
October 3, 2008
BUSH
10pF
FN6661.1
C
L