DATASHEET
SIGNS
NEW DE T
N
E D F OR
ISL54400, ISL54401, ISL54402
MME N D D R E P L A C E ME a t
ECO
July 12, 2006
nter
NO T R
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Signal Capability
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Low Voltage, Dual SPDT, USB/Audio Switches
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1-888-IN
The Intersil ISL54400, ISL54401, ISL54402 dual SPDT
(Single Pole/Double Throw) switches combine low distortion
audio and accurate USB 2.0 full speed data signal switching
in the same low voltage device. When operated with a 2.5V to
3.6V single supply these analog switches allow audio signal
swings below-ground, allowing the use of a common USB and
audio headphone connector in Personal Media Players and
other portable battery powered devices.
The ISL54400 and ISL54401 incorporate circuitry for
detection of the USB V
BUS
voltage, which is used to switch
between the audio and USB signal source in the portable
device. In addition, the ISL54400 includes circuitry for
generation of a V
TERM
voltage of 3.3V for use with USB
speed setting pull-up resistor.
The ISL54400, ISL54401, ISL54402 are available in 10 Ld
3mm x 3mm TDFN and 10 Ld tiny 2.1mm x 1.6mm ultra-thin
TQFN packages. They operate over a temperature range of
-40 to +85°C.
FN6240
Rev 3.00
July 12, 2006
Features
• Low Distortion Negative Signal Capability
• Detection of V
BUS
Voltage on USB Cable (ISL54400 and
ISL54401)
• Generation of V
TERM
Voltage for USB D+/D- Pull-up
Resistor (ISL54400)
• Low Distortion Headphone Audio Signals
- THD+N at 12mW into 32Load . . . . . . . . . . . . <0.007%
• Cross-talk (20Hz to 20kHz) . . . . . . . . . . . . . . . . . . -110dB
• 1.8V Logic Compatible (ISL54402)
• Single Supply Operation (V
DD
)
- ISL54400 and ISL54401. . . . . . . . . . . . . . . 2.5V to 3.6V
- ISL54402 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
• Available in Ultra-thin
QFN and TDFN Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
Related Literature
• Application Note AN1255 “ISL5440XEVAL1Z Evaluation
Board User’s Manual”
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Applications
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• USB Switching
• Audio/USB Switching
Application Block Diagram
V
DD
V
TERM
ISL54400
USB/HEADPHONE JACK
V
BUS
USB
FULL-SPEED
TRANSCEIVER
D-/L
D-
D+
L
R
D+/R
CODEC
GND
FN6240 Rev 3.00
July 12, 2006
Page 1 of 15
ISL54400, ISL54401, ISL54402
Truth Table
ISL54401
V
BUS
0
1
L, R
ON
OFF
D+, D-
OFF
ON
Logic “0” when
V
DD
+ 0.2V, Logic “1” when
V
DD
+ 0.8V
Truth Table
ISL54400
V
DD
0
0
1
1
V
BUS
0
1
0
1
L, R
ON
OFF
ON
OFF
D+, D-
OFF
ON
OFF
ON
V
TERM
Open
Open
Open
3.3V to 4.0V
V
DD
: Logic “0” when < 2.4V, Logic “1” when
2.5V
V
BUS
: Logic “0” when
V
DD
+ 0.2V, Logic “1” when
V
DD
+ 0.8V
Truth Table
ISL54402
IN
0
1
NCx
ON
OFF
NOx
OFF
ON
Logic “0”
0.5V.
Logic “1”
1.4V,
with V
DD
between 2.7V and 3.6V
Pin Descriptions
ISL54400
NO.
1
2
3
4
5
6
7
8
9
10
NAME
V
DD
V
BUS
D-/L
D+/R
GND
R
L
D+
D-
V
TERM
FUNCTION
Power Supply (Audio Switches)
Control Input for V
TERM
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
USB Differential Input
USB Differential Input
USB V
TERM
Voltage, Outputs
3.3V to 4.0V when V
BUS
= 4.4V
to 5.25V and V
DD
= logic “1” and
connected to Upstream USB
Termination.
NAME
V
DD
V
BUS
D-/L
D+/R
GND
R
L
D+
D-
N.C.
ISL54401
FUNCTION
Power Supply (Audio Switches)
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
USB Differential Input
USB Differential Input
No Connect
NAME
V
DD
IN2
COM1
COM2
GND
NC2
NC1
NO2
NO1
IN1
ISL54402
FUNCTION
System Power Supply Input
Digital Control Input
Common Pin
Common Pin
Ground Connection
Normally Closed Pin
Normallly Closed Pin
Normally Open Pin
Normallly Open Pin
Digital Control Input
FN6240 Rev 3.00
July 12, 2006
Page 3 of 15
ISL54400, ISL54401, ISL54402
Absolute Maximum Ratings
V
DD
to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V
V
BUS
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V
Input Voltages
NOx, NCx, L, R (Note 2). . . . . . . . . . . . . . . - 2V to ((V
DD
) + 0.3V)
D+, D- (Note 2). . . . . . . . . . . . . . . . . . . . . -2V to ((V
BUS
) + 0.3V)
INx (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V
DD
) + 0.3V)
Output Voltages (ISL54400 and ISL54401)
D-/L, D+/R (Note 2) Audio Mode . . . . . . . . -2V to ((V
DD
) + 0.3V)
D-/L, D+/R (Note 2) USB Mode . . . . . . . . -2V to ((V
BUS
) + 0.3V)
Output Voltages (ISL54402)
COMx (Note 2) . . . . . . . . . . . . . . . . . . . . . . -2V to ((V
DD
) + 0.3V)
Continuous Current (L, R, NCx, or COMx) . . . . . . . . . . . . .
300mA
Peak Current (L, R, NCx, or COMx)
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . .
500mA
Continuous Current (D+, D-, NOx). . . . . . . . . . . . . . . . . . . . .
40mA
Peak Current (D+, D-, NOx)
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . .
100mA
ESD Rating:
HBM COMx, D-/L, D+/R, V
BUS
. . . . . . . . . . . . . . . . . . . . . . .>4kV
HBM All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>4kV
MM COMx, D-/L, D+/R, V
BUS
. . . . . . . . . . . . . . . . . . . . . . .>500V
MM All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>300V
CDM (TDFN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>1kV
Thermal Information
Thermal Resistance (Typical, Note 3)
JA
(°C/W)
10 Ld 3x3 TDFN Package . . . . . . . . . . . . . . . . . . . .
80
10 Ld
QFN
Package . . . . . . . . . . . . . . . . . . . . . . .
96
Maximum Junction Temperature (Plastic Package). . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . -65°C to 150°C
Operating Conditions
Temperature Range
ISL5440XIR and ISL5440XIRU . . . . . . . . . . . . . . . . . -40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
2. Signals on D+, D-, L, R, D-/L, D+/R, V
BUS
, NOx, NCx, COMx, INx, exceeding V
DD
or GND by specified amount are clamped. Limit forward
current through clamp to maximum current ratings.
3.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications - 2.7V to 5.5V Supply
Test Conditions: V
DD
= +3.0V, GND = 0V, V
BUSH
= 3.8V, V
BUSL
= 3.2V,
V
INH
= 1.4V, V
INL
= 0.5V (Notes 4, 6), Unless Otherwise Specified
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
PARAMETER
ANALOG SWITCH CHARACTERISTICS
Audio Switches (L, R, NC1, NC2)
Analog Signal Range, V
ANALOG
TEST CONDITIONS
Full
25
Full
25
Full
25
-1.5
-
-
-
-
30
-
0.02
-
0.002
-
50
1.5
0.12
0.15
0.08
0.09
70
V
k
R
ON
Matching Between Channels, V
DD
= 3.0V, V
BUS
= 3.2V or V
IN
= 0.5V, I
COM
= 40mA, V
L
R
ON
or V
R
or V
NCx
= Voltage at max R
ON
over signal range of
-0.85V to 0.85V, (Note 9)
R
ON
Flatness, R
FLAT(ON)
V
DD
= 3.0V, V
BUS
= 3.2V or V
IN
= 0.5V, I
COM
= 40mA,
V
L
or V
R
or V
NCx
= -0.85V to 0.85V, (Note 7)
V
DD
= 3.6V, V
BUS
= 0V or V
IN
= 0.5V, V
D-/L
or V
D+/R
or
V
COM
= -0.85V, 0.85V, V
L
or V
R
or V
NCx
= -0.85V, 0.85V,
V
D+
and V
D-
= floating, Measure current through the
discharge pull-down resistor and calculate resistance
value.
Discharge Pull-down Resistance,
R
L
, R
R
USB Switches (D+, D-, NO1, NO2)
Analog Signal Range, V
ANALOG
ON Resistance, R
ON ,
(ISL54400
and ISL54401 Only)
V
DD
= 3.6V, V
BUS
= 4.4V, I
COM
= 40mA, V
D+
or V
D-
= 0V
to V
BUS
, (See Figure 3)
Full
25
Full
25
Full
-1.5
-
-
-
-
-
5
-
0.2
-
V
BUS
6
6.5
0.4
0.45
V
R
ON
Matching Between Channels, V
DD
= 3.6V, V
BUS
= 4.4V, I
COM
= 40mA, V
D+
or
R
ON ,
(ISL54400 and ISL54401 V
D-
= Voltage at max R
ON
, (Note 9)
Only)
FN6240 Rev 3.00
July 12, 2006
Page 5 of 15
Embedded System
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