MP3/USB 2.0 High Speed Switch with Negative
Signal Handling
ISL54206A
The Intersil ISL54206A dual SPDT (Single Pole/Double
Throw) switches combine low distortion audio and
accurate USB 2.0 high speed data (480Mbps) signal
switching in the same low voltage device. When operated
with a 2.7V 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 ISL54206A logic control pins are 1.8V compatible,
which allows for control via a standard µcontroller. With a
V
DD
voltage in the range of 2.7V to 3.6V, the IN pin
voltage can exceed the V
DD
rail allowing for the USB 5V
V
BUS
voltage from a computer to directly drive the IN pin
to switch between the audio and USB signal sources in
the portable device. The part has an audio enable control
pin to open all the switches and put the part in a low
power state.
The ISL54206A is available in a small 10 Ld
2.1mmx1.6mm ultra-thin µTQFN package and a 10 Ld
3mmx3mm TDFN package. It operates over a
temperature range of -40°C to +85°C.
ISL54206A
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability
• Control Pin to Open all Switches and Enter Low
Power State
• Low Distortion Headphone Audio Signals
- THD+N at 20mW into 32Ω Load. . . . . . . <0.1%
• Cross-talk Audio Channels (20Hz to 20kHz) . . -110dB
• Single Supply Operation (V
DD
) . . . . . 2.5V to 5.5V
• -3dB Bandwidth USB Switches. . . . . . . . . 630MHz
• Available in µTQFN and TDFN Packages
• Pb-Free (RoHS Compliant)
• Compliant with USB 2.0 Short Circuit Requirements
Without Additional External Components
Applications*
(see page 18)
• MP3 and Other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• Audio/USB Switching
Related Literature*
(see page 18)
• Technical Brief
TB363
“Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”.
• Application Note
AN1337
“ISL54206AEVAL1Z
Evaluation Board User’s Manual”.
Application Block Diagram
V
DD
USB AND HEADPHONE JACK
ISL54206A
VBUS
IN
CTRL
LOGIC
4MΩ
COM-
D-
D+
L
COM+
R
GND
CODEC
USB
HIGH-SPEED
TRANSCEIVER
µCONTROLLER
NOTE: The L and R 50kΩ resistors to ground are not shown.
October 28, 2010
FN6515.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL54206A
Pin Configurations
(Note 1)
ISL54206A
(10 LD TDFN)
TOP VIEW
ISL54206A
(10 LD µTQFN)
TOP VIEW
CTRL
10
4M
9
8
7
6
D-
D+
L
R
VDD
IN
COM -
COM +
GND
1
2
3
4
5
PD
4M
LOGIC
CONTROL
10
9
8
7
6
CTRL
D-
D+
L
R
VDD 1
IN 2
COM - 3
COM + 4
LOGIC
CONTROL
5
GND
50k
50k
50k
50k
NOTE:
1. ISL54206A Switches shown for IN = Logic “0” and CTRL = Logic “1”.
Truth Table
ISL54206A
IN
0
0
1
CTRL
0
1
X
L, R
OFF
ON
OFF
D+, D-
OFF
OFF
ON
Pin Descriptions
ISL54206A
PIN NO. NAME
1
2
3
4
5
6
7
8
9
10
-
VDD
IN
Power Supply
Digital Control Input
FUNCTION
COM- Voice and Data Common Pin
COM+ Voice and Data Common Pin
GND
R
L
D+
D-
Ground Connection
Audio Right Input
Audio Left Input
USB Differential Input
USB Differential Input
IN: Logic “0” when
≤0.5V,
Logic “1” when
≥1.4V
with 2.7V to
3.6V supply.
CTRL: Logic “0” when
≤0.5V
or Floating, Logic “1” when
≥1.4V
with 2.7V to 3.6V supply.
CTRL Digital Control Input (Audio Enable)
PD
Thermal Pad. Tie to Ground or Float
(TDFN package only)
2
FN6515.3
October 28, 2010
ISL54206A
Ordering Information
PART NUMBER
(Note 5)
ISL54206AIRTZ (Note 3)
PART
MARKING
06AZ
TEMP. RANGE
(°C)
-40 to +85
-40 to +85
-40 to +85
PACKAGE
(Pb-Free)
10 Ld 3mmx3mm TDFN
10 Ld 3mmx3mm TDFN (Tape and Reel)
10 Ld 2.1mmx1.6mm µTQFN (Tape and Reel)
PKG.
DWG. #
L10.3x3A
L10.3x3A
L10.2.1x1.6A
ISL54206AIRTZ-T (Notes 2, 3) 06AZ
ISL54206AIRUZ-T (Notes 2, 4) FU
ISL54206AEVAL1Z
NOTES:
Evaluation Board
2. Please refer to
TB347
for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both
SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
4. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach
materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free
soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.
5. For Moisture Sensitivity Level (MSL), please see device information page for
ISL54206A.
For more information on MSL please
see techbrief
TB363.
3
FN6515.3
October 28, 2010
ISL54206A
Absolute Maximum Ratings
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V
Input Voltages
D+, D-, L, R (Note 6). . . . . . . . . . - 2V to ((V
DD
) + 0.3V)
IN (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . -2V to 5.5V
CTRL (Note 6) . . . . . . . . . . . . . . . -0.3 to ((V
DD
) + 0.3V)
Output Voltages
COM-, COM+ (Note 6) . . . . . . . . . . -2V to ((V
DD
) + 0.3V)
Continuous Current (Audio Switches) . . . . . . . . . . ±150mA
Peak Current (Audio Switches)
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . ±300mA
Continuous Current (USB Switches) . . . . . . . . . . . . ±40mA
Peak Current (USB Switches)
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . ±100mA
ESD Rating:
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . >7kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . >400V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . >1.4kV
Latch-up Tested per JEDEC; Class II Level A . . . . . . at 85°C
Thermal Information
Thermal Resistance (Typical)
θ
JA
(°C/W)
θ
JC
(°C/W)
10 Ld µTQFN (Notes 7, 8) . . . . . . .
145
90
10 Ld TDFN (Notes 9, 10) . . . . . . .
55
16
Maximum Junction Temperature (Plastic Package). . +150°C
Maximum Storage Temperature Range . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . -40°C to +85°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact
product reliability and result in failures not covered by warranty.
NOTES:
6. Signals on D+, D-, L, R, COM-, COM+, CTRL, IN exceeding V
DD
or GND by specified amount are clamped. Limit current to
maximum current ratings.
7.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379 for details.
8. For
θ
JC
, the “case temp” location is taken at the package top center.
9.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach”
features. See Tech Brief TB379.
10. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications - 2.7V to 3.6V Supply
Test Conditions: V
DD
= +3.3V, GND = 0V, V
INH
= 1.4V,
V
INL
= 0.5V, V
CTRLH
= 1.4V, V
CTRLL
= 0.5V, (Note 11), unless
otherwise specified.
Boldface limits apply over the operating
temperature range, -40°C to +85°C.
TEMP
MIN
MAX
(°C) (Notes 12, 15) TYP (Notes 12, 15) UNITS
PARAMETER
ANALOG SWITCH CHARACTERISTICS
Audio Switches (L, R)
Analog Signal Range,
V
ANALOG
ON-Resistance, r
ON
ON-Resistance, r
ON
ON-Resistance, r
ON
ON-Resistance, r
ON
R
ON
Matching Between
Channels,
Δr
ON
R
ON
Flatness, R
FLAT(ON)
TEST CONDITIONS
V
DD
= 3.0V, IN = 0.5V, CTRL = 1.4V
V
DD
= 5.0V, IN = 0V, CTRL = V
DD
, I
COMx
= 40mA,
V
L
or V
R
= -0.85V to 0.85V, (See Figure 3)
V
DD
= 4.2V, IN = 0V, CTRL = V
DD
, I
COMx
= 40mA,
V
L
or V
R
= -0.85V to 0.85V, (See Figure 3)
V
DD
= 2.85V, IN = 0V, CTRL = V
DD
, I
COMx
= 40mA,
V
L
or V
R
= -0.85V to 0.85V, (See Figure 3)
V
DD
= 3.0V, IN = 0.5V, CTRL = 1.4V, I
COMx
= 40mA,
V
L
or V
R
= -0.85V to 0.85V, (See Figure 3)
V
DD
= 3.0V, IN = 0.5V, CTRL = 1.4V, I
COMx
= 40mA,
V
L
or V
R
= Voltage at max r
ON
over signal range of
-0.85V to 0.85V, (Note 14)
V
DD
= 3.0V, IN = 0.5V, CTRL = 1.4V, I
COMx
= 40mA,
V
L
or V
R
= -0.85V to 0.85V, (Note 13)
Full
25
25
25
25
Full
25
Full
25
Full
-1.5
-
-
-
-
-
-
-
-
-
-
2.47
2.50
2.87
2.65
-
0.02
-
0.03
-
1.5
-
-
-
4.0
5.5
0.13
0.16
0.05
0.07
V
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
4
FN6515.3
October 28, 2010
ISL54206A
Electrical Specifications - 2.7V to 3.6V Supply
Test Conditions: V
DD
= +3.3V, GND = 0V, V
INH
= 1.4V,
V
INL
= 0.5V, V
CTRLH
= 1.4V, V
CTRLL
= 0.5V, (Note 11), unless
otherwise specified.
Boldface limits apply over the operating
temperature range, -40°C to +85°C. (Continued)
TEMP
MIN
MAX
(°C) (Notes 12, 15) TYP (Notes 12, 15) UNITS
25
-
50
-
kΩ
PARAMETER
Discharge Pull-Down
Resistance, R
L
, R
R
TEST CONDITIONS
V
DD
= 3.6V, IN = 0V, CTRL = 3.6V, V
COM-
or
V
COM+
= -0.85V, 0.85V, V
L
or V
R
= -0.85V,
0.85V, V
D+
and V
D-
= floating, Measure current
through the discharge pull-down resistor and
calculate resistance value.
V
DD
= 3.6V, IN = 1.4V, CTRL = 1.4V
V
DD
= 5.0V, IN = V
DD
, CTRL = V
DD
, I
COMx
= 1mA,
V
D+
or V
D-
= 5V (See Figure 4)
V
DD
= 4.2V, IN = V
DD
, CTRL = V
DD
, I
COMx
= 1mA,
V
D+
or V
D-
= 4.2V (See Figure 4)
V
DD
= 2.85V, IN = V
DD
, CTRL = V
DD
, I
COMx
= 1mA,
V
D+
or V
D-
= 2.85V (See Figure 4)
V
DD
= 3.3V, IN = 1.4V, CTRL = 1.4V, I
COMx
= 1mA,
V
D+
or V
D-
= 3.3V (See Figure 4)
V
DD
= 3.6V, IN = 1.4V, CTRL = 1.4V, I
COMx
= 40mA,
V
D+
or V
D-
= 0V to 400mV (See Figure 4)
V
DD
= 3.6V, IN = 1.4V, CTRL = 1.4V, I
COMx
= 40mA,
V
D+
or V
D-
= Voltage at max R
ON
over signal range
of 0V to 400mV, (Note 14)
V
DD
= 3.6V, IN = 1.4V, CTRL = 1.4V,
I
COMx
= 40mA, V
D+
or V
D-
= 0V to 400mV,
(Note 13)
V
DD
= 3.6V, IN = 0V, CTRL = 3.6V, V
COM-
or
V
COM+
= 0.5V, 0V, V
D+
or V
D-
= 0V, 0.5V, V
L
and
V
R
= float
V
DD
= 3.3V, IN = 3.3V, CTRL = 0V or 3.3V, V
D+
or V
D-
= 2.0V, V
COM-
,V
COM+
, V
L
and V
R
= float
USB Switches (D+, D-)
Analog Signal Range,
V
ANALOG
ON-Resistance, r
ON
ON-Resistance, r
ON
ON-Resistance, r
ON
ON-Resistance, r
ON
ON-Resistance, r
ON
r
ON
Matching Between
Channels,
Δr
ON
r
ON
Flatness, R
FLAT(ON)
Full
+25
+25
+25
+25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
25
25
25
0
-
-
-
-
-
-
-
-
-
-
-
-10
-70
-30
-300
-
-
-
-
-
17.7
19.5
26
23.5
-
4.6
-
0.06
-
0.4
-
-
-
8
-
67
48
18
50
V
DD
-
-
-
30
35
5
6.5
0.5
0.55
0.6
1.0
10
70
30
300
-
-
-
-
V
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
nA
nA
nA
nA
ns
ns
ns
ps
OFF Leakage Current,
I
D+(OFF)
or I
D-(OFF)
ON Leakage Current, I
Dx
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
ON
Turn-OFF Time, t
OFF
Break-Before-Make Time
Delay, t
D
Skew, t
SKEW
V
DD
= 2.7V, R
L
= 50Ω, C
L
= 10pF, (See Figure 1)
V
DD
= 2.7V, R
L
= 50Ω, C
L
= 10pF, (See Figure 1)
V
DD
= 2.7V, R
L
= 50Ω,
C
L
=
10pF, (See Figure 2)
V
DD
= 3.3V, IN = 3.3V, CTRL = 0V or 3.3V,
R
L
= 45Ω, C
L
= 10pF, t
R
= t
F
= 750ps at
480Mbps, (Duty Cycle = 50%) (See Figure 7)
V
DD
= 3.3V, IN = 3.3V, CTRL = 0V or 3.3V,
R
L
= 45Ω, C
L
= 10pF, t
R
= t
F
= 750ps at 480Mbps
V
DD
= 3.3V, IN = 3.3V, CTRL = 0V or 3.3V,
R
L
= 45Ω, C
L
= 10pF,
(See
Figure 7)
V
DD
= 3.3V, IN = 0V, CTRL = 3.3V, R
L
= 32Ω,
f = 20Hz to 20kHz, V
R
or V
L
= 0.707V
RMS
(2V
P-P
), (See Figure 6)
f = 20Hz to 20kHz, V
DD
= 3.0V, IN = 0V, CTRL = 3V,
V
L
or V
R
= 0.707V
RMS
(2V
P-P
), R
L
= 32Ω
Signal = 0dBm, 0.2V
DC
offset, R
L
= 50Ω, C
L
= 5pF
f = 1MHz, V
DD
= 3.3V, IN = 0V, CTRL = 3.3V,
V
D-
or V
D+
= V
COMx
= 0V, (See Figure 5)
Total Jitter, t
J
Propagation Delay, t
PD
Crosstalk
(Channel-to-Channel),
R to COM-, L to COM+
Total Harmonic Distortion
USB Switch -3dB
Bandwidth
D+/D- OFF Capacitance,
C
D+(OFF)
, C
D-(OFF)
25
25
25
-
-
-
210
250
-110
-
-
-
ps
ps
dB
25
25
25
-
-
-
0.06
630
6
-
-
-
%
MHz
pF
5
FN6515.3
October 28, 2010
