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PDF ISL54209 Data sheet ( Hoja de datos )
| Número de pieza | ISL54209 | |
| Descripción | MP3/USB 2.0 High Speed Switch | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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ISL54209
®
www.DataSheet4U.com
Data Sheet
MP3/USB 2.0 High Speed Switch with
Negative Signal Handling and Low Power
Shutdown
The Intersil ISL54209 dual SPDT (Single Pole/Double Throw)
switch combines low distortion audio and accurate USB 2.0
high speed data (480Mbps) signal switching in the same low
voltage device. When operated with a 2.5V to 5.0V single
supply, this analog switch allows 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 ISL54209 logic control pins are 1.8V compatible, which
allows for control via a standard µcontroller. With a VDD
voltage in the range of 2.5V to 3.6V, the IN pin voltage can
exceed the VDD rail allowing the USB 5V VBUS 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 ISL54209 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.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Application Block Diagram
3.3V
December 20, 2007
FN6627.0
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability
• Low Power Shutdown State
• Low Distortion Headphone Audio Signals
- THD+N at 20mW into 32Ω Load . . . . . . . . . . . . <0.07%
• Crosstalk (100kHz) . . . . . . . . . . . . . . . . . . . . . . . . . -95dB
• OFF Isolation (100kHz) . . . . . . . . . . . . . . . . . . . . . . 95dB
• Single Supply Operation (VDD) . . . . . . . . . . . . 2.5V to 5.0V
• -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 736MHz
• Available in µTQFN and TDFN Packages
• Compliant with USB 2.0 Short Circuit Requirements
Without Additional External Components
• Pb-Free (RoHS Compliant)
Applications
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDAs
• Audio/USB Switching
VBUS
VDD
ISL54209
IN
LOGIC CONTROL
4MΩ
COM -
COM +
50kΩ
GND
CTRL
4MΩ
D-
D+
L
R
50kΩ
µCONTROLLER
USB
HIGH-SPEED
TRANSCEIVER
AUDIO
CODEC
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. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL54209
Electrical Specifications - 2.7V to 3.6V Supply Test Conditions: VDD = +3.0V, GND = 0V, VINH = VCTRLH = 1.4V, VINL = VCTRLL = 0.5V,
(Note 7), Unless Otherwise Specified. (Continued)
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PARAMETER
TEST CONDITIONS
TEMP
MIN
MAX
(°C) (Notes 8, 9) TYP (Notes 8, 9) UNITS
L/R OFF-Capacitance, CLOFF, f = 1MHz, VDD = 3.0V, IN = 3.0V, CTRL = 0V or 3V, VL or 25 - 5 - pF
CROFF
VR = VCOMx = 0V (see Figure 5)
COM ON-Capacitance,
f = 1MHz, VDD = 3.0V, IN = 3.0V, CTRL = 0V or 3V, VD- or
25
-
8
- pF
CCOMx(ON)
VD+ = VCOMx = 0V (see Figure 5)
POWER SUPPLY CHARACTERISTICS
Power Supply Range, VDD
Positive Supply Current, IDD
VDD = 3.6V, IN = 0V or 3.6V, CTRL = 3.6V
Full 2.5
5.0 V
25 - 7 13 µA
Full -
- 15 µA
Positive Supply Current, IDD VDD = 3.6V, IN = 0V, CTRL = 0V or float
(Low Power State)
25 - 1 10 nA
Full -
- 150 nA
Power OFF-Current, IDx ICOMx VDD = 0V, VDx = VCOMx = 5.25V, IN = CTRL = Float
DIGITAL INPUT CHARACTERISTICS
25 - 7 - µA
Voltage Low, VINL, VCTRLL
Voltage High, VINH, VCTRLH
Input Current, IINL, ICTRLL
Input Current, IINH
Input Current, ICTRLH
CTRL Pull-Down Resistor,
RCTRL
IN Pull-Down Resistor, RIN
VDD = 2.7V to 3.6V
VDD = 2.7V to 3.6V
VDD = 3.6V, IN = 0V, CTRL = 0V
VDD = 3.6V, IN = 3.6, CTRL = 0V
VDD = 3.6V, IN = 0V, CTRL = 3.6V
VDD = 3.6V, IN = 0V, CTRL = 3.6V; measure current through the
internal pull-down resistor and calculate resistance value.
VDD = 3.6V, IN = 3.6V, CTRL = 3.6V; measure current through
the internal pull-down resistor and calculate resistance value.
Full
Full
Full
Full
Full
Full
Full
- - 0.5 V
1.4 -
-V
-50 20 50 nA
-2 0.9 2 µA
-2 0.9 2 µA
- 4 - MΩ
- 4 - MΩ
NOTES:
7. Vlogic = Input voltage to perform proper function.
8. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
9. Parts are 100% tested at +25°C. Over-temperature limits established by characterization and are not production tested.
10. Flatness is defined as the difference between maximum and minimum value of on-resistance over the specified analog signal range.
11. Limits established by characterization and are not production tested.
12. rON matching between channels is calculated by subtracting the channel with the highest max rON value from the channel with lowest max rON
value, between L and R or between D+ and D-.
5 FN6627.0
December 20, 2007
5 Page 
ISL54209
Typical Performance Curves TA = +25°C, Unless Otherwise Specified.
w0w.1w1 .DataSheet4U.com
0.10
RLOAD = 32Ω
RLOAD = 32Ω
0.10 VLOAD = 0.707VRMS
VDD = 3V
0.09
0.08
0.08
0.07
0.06
0.05
VDD = 2.6V
VDD = 2.7V
VDD = 3V
VDD = 3.6V
0.06
0.04
3VP-P
2.5VP-P
2VP-P
1VP-P
0.04
20
200 2000
FREQUENCY (Hz)
20000
FIGURE 10. THD+N vs SUPPLY VOLTAGE vs FREQUENCY
0.02
20
200 2000
FREQUENCY (Hz)
20000
FIGURE 11. THD+N vs SIGNAL LEVELS vs FREQUENCY
TIME SCALE (0.2ns/DIV)
FIGURE 12. EYE PATTERN: 480Mbps WITH USB SWITCHES IN THE SIGNAL PATH
11 FN6627.0
December 20, 2007
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet ISL54209.PDF ] | |
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