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ISL54400 Datasheet, PDF (3/15 Pages) Intersil Corporation – Low Voltage, Dual SPDT, USB/Audio Switches with Negative Signal Capability
ISL54400, ISL54401, ISL54402
Truth Table
ISL54401
VBUS
0
L, R
D+, D-
ON
OFF
1
OFF
ON
Logic “0” when ≤ VDD + 0.2V, Logic “1” when ≥ VDD + 0.8V
Truth Table
VDD
0
0
VBUS
0
1
ISL54400
L, R
ON
OFF
D+, D-
OFF
ON
VTERM
Open
Open
1
0
ON
OFF
Open
1
1
OFF
ON
3.3V to 4.0V
VDD: Logic “0” when < 2.4V, Logic “1” when ≥ 2.5V
VBUS: Logic “0” when ≤ VDD + 0.2V, Logic “1” when ≥ VDD + 0.8V
Truth Table
ISL54402
IN
NCx
NOx
0
ON
OFF
1
OFF
ON
Logic “0” ≤ 0.5V. Logic “1” ≥ 1.4V, with VDD between 2.7V and 3.6V
Pin Descriptions
ISL54400
NO. NAME
FUNCTION
1
VDD Power Supply (Audio Switches)
Control Input for VTERM
2
VBUS Digital Control Input
Power Supply (USB Switches)
3
D-/L Voice and Data Common Pin
4
D+/R Voice and Data Common Pin
5
GND Ground Connection
6
R Audio Right Input
7
L Audio Left Input
NAME
VDD
ISL54401
FUNCTION
Power Supply (Audio Switches)
VBUS
D-/L
D+/R
GND
R
L
Digital Control Input
Power Supply (USB Switches)
Voice and Data Common Pin
Voice and Data Common Pin
Ground Connection
Audio Right Input
Audio Left Input
8
D+ USB Differential Input
D+ USB Differential Input
9
D- USB Differential Input
D- USB Differential Input
10 VTERM USB VTERM Voltage, Outputs
N.C. No Connect
3.3V to 4.0V when VBUS = 4.4V
to 5.25V and VDD = logic “1” and
connected to Upstream USB
Termination.
NAME
VDD
ISL54402
FUNCTION
System Power Supply Input
IN2 Digital Control Input
COM1 Common Pin
COM2 Common Pin
GND Ground Connection
NC2 Normally Closed Pin
NC1 Normallly Closed Pin
NO2 Normally Open Pin
NO1 Normallly Open Pin
IN1 Digital Control Input
3
FN6240.3
July 12, 2006