isl54209 Intersil Corporation, isl54209 Datasheet

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isl54209

Manufacturer Part Number
isl54209
Description
Mp3/usb 2.0 High Speed Switch With Negative Signal Handling And Low Power Shutdown
Manufacturer
Intersil Corporation
Datasheet

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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 V
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
Application Block Diagram
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
V
®
BUS
1
Data Sheet
IN
COM -
COM +
BUS
4MΩ
voltage from
LOGIC CONTROL
3.3V
1-888-INTERSIL or 1-888-468-3774
GND
ISL54209
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
VDD
50kΩ
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
• Low Distortion Negative Signal Capability
• Low Power Shutdown State
• Low Distortion Headphone Audio Signals
• Crosstalk (100kHz) . . . . . . . . . . . . . . . . . . . . . . . . . -95dB
• OFF Isolation (100kHz) . . . . . . . . . . . . . . . . . . . . . . 95dB
• Single Supply Operation (V
• -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 736MHz
• Available in µTQFN and TDFN Packages
• Compliant with USB 2.0 Short Circuit Requirements
• Pb-Free (RoHS Compliant)
Applications
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDAs
• Audio/USB Switching
December 20, 2007
Signaling Capability per USB 2.0
- THD+N at 20mW into 32Ω Load . . . . . . . . . . . . <0.07%
Without Additional External Components
50kΩ
4MΩ
CTRL
All other trademarks mentioned are the property of their respective owners.
D-
D+
L
R
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
µCONTROLLER
TRANSCEIVER
HIGH-SPEED
DD
CODEC
AUDIO
USB
) . . . . . . . . . . . . 2.5V to 5.0V
ISL54209
FN6627.0

Related parts for isl54209

isl54209 Summary of contents

Page 1

... 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 3mmx3mm TDFN package. It operates over a temperature range of -40°C to +85° ...

Page 2

... LOGIC VDD 1 CONTROL IN 2 4MΩ COM - 3 4 COM + 5 NOTE: 1. ISL54209 Switches Shown for IN = Logic “0” and CTRL = Logic “1”. Truth Table ISL54209 IN CTRL OFF OFF IN, CTRL: Logic “0” when ≤ 0.5V or Floating, Logic “1” when ≥ 1.4V with 2 ...

Page 3

... R 0.85V current through the discharge pull-down resistor and calculate resistance value. 3 ISL54209 Thermal Information Thermal Resistance (Typical, Notes 5 and 6)θ 2.1mmx1.6mm µTQFN Package 10 Ld 3mmx3mm TDFN . . . . . . . . . . . ) + 0.3V) Maximum Junction Temperature (Plastic Package +150°C DD Maximum Storage Temperature Range -65°C to +150° ...

Page 4

... Total Harmonic Distortion f = 20Hz to 20kHz USB Switch -3dB Bandwidth Signal = 0dBm, 0.2V D+/D- OFF-Capacitance 1MHz DxOFF D+ COMx 4 ISL54209 Test Conditions +3.0V, GND = 0V (Note 7), Unless Otherwise Specified. (Continued) TEST CONDITIONS , CTRL = 1mA COMx , CTRL = 1mA ...

Page 5

... Limits established by characterization and are not production tested. 12. r matching between channels is calculated by subtracting the channel with the highest max r ON value, between L and R or between D+ and D-. 5 ISL54209 Test Conditions +3.0V, GND = 0V (Note 7), Unless Otherwise Specified. (Continued) TEST CONDITIONS = 3.0V 3.0V, CTRL = 0V or 3V, V ...

Page 6

... V /40mA ON 1 CTRL 40mA COMx GND Repeat test for all switches. FIGURE 3. AUDIO r TEST CIRCUIT ON 6 ISL54209 t < 20ns r t < 20ns f SWITCH INPUT OUT 90% Repeat test for all switches. C capacitance. FIGURE 1. SWITCHING TIMES V INPUT 90 Repeat test for all switches. C FIGURE 2 ...

Page 7

... OUT+ OUT- 50% 90% 10 FIGURE 7A. MEASUREMENT POINTS 7 ISL54209 (Continued SIGNAL GENERATOR ANALYZER Signal direction through switch is reversed, worst case values are recorded. Repeat test for all switches. DIN+ DIN- |tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals. ...

Page 8

... V BUS FIGURE 9. LOGIC CONTROL VIA V Detailed Description The ISL54209 device is a dual single pole/double throw (SPDT) analog switch that operates from a single DC power supply in the range of 2.5V to 5.0V. It was designed to function as a dual multiplexer to select between USB differential data signals and audio L and R stereo signals. It comes in tiny µ ...

Page 9

... Typical Application Block Diagrams of this functionality are shown in Figures 8 and 9. The ISL54209 has a single logic control pin (IN) that selects between the audio switches and the USB switches. This pin can be driven Low or High to switch between the audio CODEC drivers and USB transceiver of the MP3 player or cellular phone ...

Page 10

... V pin of the connector and will drive and hold the IN control pin of the ISL54209 low. As long as the CTRL = Logic “1,” the ISL54209 part will be in the audio mode and the audio drivers of the media player can drive the headphones and play music ...

Page 11

... V = 2. 0.05 0.04 20 200 FREQUENCY (Hz) FIGURE 10. THD+N vs SUPPLY VOLTAGE vs FREQUENCY FIGURE 12. EYE PATTERN: 480Mbps WITH USB SWITCHES IN THE SIGNAL PATH 11 ISL54209 T = +25°C, Unless Otherwise Specified. A 0.10 0.08 0.06 0. 3.6V DD 0.02 2000 20000 20 FIGURE 11. THD+N vs SIGNAL LEVELS vs FREQUENCY TIME SCALE (0.2ns/DIV 32Ω LOAD ...

Page 12

... FIGURE 13. EYE PATTERN: 12Mbps USB SIGNAL WITH USB SWITCHES IN THE SIGNAL PATH 50Ω 0. SIGNAL P-P P-P 1M 10M FREQUENCY (Hz) FIGURE 14. FREQUENCY RESPONSE 12 ISL54209 T = +25°C, Unless Otherwise Specified. (Continued) A TIME SCALE (10ns/DIV) 0 USB SWITCH -20 -40 -60 -80 -100 -120 0.001M 100M 3. 50Ω ...

Page 13

... Typical Performance Curves 50Ω 0. SIGNAL P-P P-P -20 -40 -60 -80 -100 -120 0.001M 0.01M 0.1M 1M FREQUENCY (Hz) FIGURE 16. OFF-ISOLATION AUDIO SWITCHES 13 ISL54209 T = +25°C, Unless Otherwise Specified. (Continued) A Die Characteristics SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 98 PROCESS: Submicron CMOS 10M 100M 500M FN6627.0 December 20, 2007 ...

Page 14

... X e BOTTOM VIEW C L (A1 SECTION "C-C" FOR ODD TERMINAL/SIDE b 0.05 MIN 0.10 MIN DETAIL “A” PIN ISL54209 L10.2.1x1. LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE E SYMBOL 4xk Ne (DATUM B) NOTES Dimensioning and tolerancing conform to ASME Y14.5-1994. ...

Page 15

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 15 ISL54209 L10.3x3A 0.10 C ...

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