isl54211 Intersil Corporation, isl54211 Datasheet

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isl54211

Manufacturer Part Number
isl54211
Description
Mp3/usb 2.0 High Speed Switch With Negative Signal Handling/click And Pop Suppression
Manufacturer
Intersil Corporation
Datasheet

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Part Number:
isl54211IRUZ-T
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MP3/USB 2.0 High Speed Switch with
Negative Signal Handling/Click and Pop
Suppression
The Intersil ISL54211 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 5.0V 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 ISL54211 logic control pins are 1.8V compatible with a
supply voltage of 2.7V to 3.6V, which allows for control via a
standard µcontroller.
The part has an audio enable control pin (CTRL) to open all
in-line switches and activate the audio click and pop circuitry.
The high OFF-isolation and special click/pop circuitry of the
audio switches eliminates click and pops in the head-phones
when the audio CODEC drivers are powering up or down or
when a headphone is inserted or removed from the
headphone jack.
It’s available in a tiny 10 Ld 1.8mmx1.4mm ultra-thin µTQFN
package and a 10 Ld 3mmx3mm TDFN package. It operates
over a temperature range of -40 to +85°C.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Application Block Diagram
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
®
1
V
BUS
Data Sheet
COM -
COM +
IN
4MΩ
200kΩ
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
200kΩ
LOGIC CONTROL
3.3V
GND
ISL54211
VDD
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
• Low Distortion Negative Signal Capability
• Clickless/Popless Audio Switches
• Enable Control Pin (CTRL) to Open all Switches
• Low Distortion Headphone Audio Signals
• Crosstalk (20Hz to 20kHz). . . . . . . . . . . . . . . . . . . -100dB
• OFF-Isolation (20Hz to 100kHz) . . . . . . . . . . . . . . . 95dB
• Single Supply Operation (V
• -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 700MHz
• 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
• PDA’s
• Audio/USB Switching
CLICK
POP
Signaling Capability per USB 2.0
- THD+N at 1mW into 32Ω Load . . . . . . . . . . . . . 0.014%
Without Additional External Components
AND
August 25, 2008
All other trademarks mentioned are the property of their respective owners.
4MΩ
|
CTRL
Intersil (and design) is a registered trademark of Intersil Americas Inc.
D-
D+
R
L
Copyright Intersil Americas Inc. 2008. All Rights Reserved
DD
) . . . . . . . . . . . . 2.7V to 5.0V
USB
AUDIO CODEC
µ
CONTROLLER
TRANSCEIVER
HIGH-SPEED
ISL54211
FN6662.1

Related parts for isl54211

isl54211 Summary of contents

Page 1

... USB and audio headphone connector in Personal Media Players and other portable battery powered devices. The ISL54211 logic control pins are 1.8V compatible with a supply voltage of 2.7V to 3.6V, which allows for control via a standard µcontroller. The part has an audio enable control pin (CTRL) to open all in-line switches and activate the audio click and pop circuitry ...

Page 2

... PART NUMBER ISL54211IRUZ-T* (Note 3) 1 ISL54211IRTZ (Note 2) 4211 ISL54211IRTZ-T* (Note 2) 4211 *Please refer to TB347 for details on reel specifications. NOTES: 2. 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). ...

Page 3

... ANALOG ON-Resistance 3.3V 1.4V, CTRL = 1.4V ISL54211 Thermal Information Thermal Resistance (Typical µTQFN Package (Note 0.3V 3x3 TDFN Package (Notes Maximum Junction Temperature (Plastic Package +150° 0.3V) Maximum Storage Temperature Range -65°C to +150°C DD Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . see link below ) + 0 ...

Page 4

... Click and Pop V = 3.3V, CTRL = 0V float 1.25V DC step or 1.25V step R (see Figure 3.3V, CTRL = 0.5Hz Square Wave float 30.1Ω or 1kΩ (see Figure 8) 4 ISL54211 Test Conditions +3.0V, GND = 0V 1.4V, V CTRLH CTRLL TEST CONDITIONS , 400mV ...

Page 5

... Flatness is defined as the difference between maximum and minimum value of ON-resistance over the specified analog signal range. 12. Limits established by characterization and are not production tested. 13. 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 ISL54211 Test Conditions 1.4V, V CTRLH CTRLL TEST CONDITIONS = 50Ω ...

Page 6

... ON 1 CTRL 40mA COMx GND Repeat test for all switches. FIGURE 2. AUDIO r TEST CIRCUIT ON 6 ISL54211 t < 20ns r t < 20ns f SWITCH INPUT OUT 90% V Repeat test for all switches. C capacitance. FIGURE 1. SWITCHING TIMES ...

Page 7

... OUT+ t skew_o OUT- 50% 90% 10 FIGURE 6A. MEASUREMENT POINTS 7 ISL54211 (Continued SIGNAL GENERATOR INL V INH ANALYZER Repeat test for all switches. V DIN+ DIN- |tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals. |tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals. ...

Page 8

... Set Audio Analyzer for Peak Detection, 32 Samples/Sec, Aweighted Filter, Manual Range 1X/Y, Units to dBV R LOAD Set Audio Analyzer for Peak Detection, 32 Samples/Sec, Aweighted Filter, Manual Range 1X/Y, Units to dBV Power Supply Turn-On/Turn-Off Click and Pop Transient Test 20kΩ 8 ISL54211 (Continued) 3.3V FLOAT ANALYZER IN V ...

Page 9

... BUS LOGIC CONTROL VIA V Detailed Description The ISL54211 device is a dual single pole/double throw (SPDT) analog switch that operates from a single DC power supply in the range of 2.7V to 5.0V. It was designed to function as dual 2-to-1 multiplexer to select between USB differential data signals and audio L and R stereo signals. It ...

Page 10

... See “Typical Application Block Diagrams” on page 9 regarding functionality. The ISL54211 has a single logic control pin (IN) that selects between the audio 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 cellphone ...

Page 11

... VBUS pin of the connector and will drive and hold the IN control pin of the ISL54211 low. As long as the CTRL = Logic “1”, the ISL54211 part remains in the audio mode and the audio drivers of the player can drive the headphones and play music ...

Page 12

... Audio or Mute mode, depending on the condition of the CTRL pin. Note: The ISL54211 contains an internal diode between the IN pin and VDD pin. Whenever the IN voltage is greater than the V voltage by more than 0.7V, current will flow through DD this diode into the V power supply bus ...

Page 13

... RMS 20 200 FREQUENCY (Hz) FIGURE 16. THD+N vs SUPPLY VOLTAGE vs FREQUENCY 0. 32Ω LOAD FREQ = 1kHz 0. 0.10 0.08 0.06 0.04 0.02 0 0.6 0.3 0.9 1.2 1.5 1.8 OUTPUT VOLTAGE (V FIGURE 18. THD+N vs OUTPUT VOLTAGE 13 ISL54211 T = +25°C, Unless Otherwise Specified (Continued 0.3 0.4 FIGURE 15. USB ON-RESISTANCE vs SWITCH VOLTAGE 3. ...

Page 14

... Typical Performance Curves FIGURE 20. EYE PATTERN: 480Mbps WITH USB SWITCHES IN THE SIGNAL PATH 14 ISL54211 T = +25°C, Unless Otherwise Specified (Continued) A TIME SCALE (0.2ns/DIV) FN6662.1 August 25, 2008 ...

Page 15

... R = 32Ω L -105 -110 -115 -120 20 50 100 200 500 1k FREQUENCY (Hz) FIGURE 22. OFF-ISOLATION AUDIO SWITCHES vs LOADING 15 ISL54211 T = +25°C, Unless Otherwise Specified (Continued) A TIME SCALE (10ns/DIV) -60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 2k 5k 10k 20k 20 FIGURE 23 ...

Page 16

... FREQUENCY (Hz) FIGURE 26. OFF-ISOLATION AUDIO SWITCHES 2V/DIV MUTE VDD/2 2V/DIV L 200mV/DIV IN L 50mV/DIV OUT TIME (s) 100ms/DIV FIGURE 28. 32Ω AC-COUPLED CLICK/POP REDUCTION 16 ISL54211 T = +25°C, Unless Otherwise Specified (Continued -20 -40 -60 -80 -100 -120 -140 5k 10k 20k 50k 100k 0.001 1 0 ...

Page 17

... Typical Performance Curves V 1V/DIV 1. CTRL = 0V V 10mV/DIV OUT TIME (s) 200ms/DIV FIGURE 30. POWER-UP/POWER-DOWN CLICK AND POP TRANSIENT 17 ISL54211 T = +25°C, Unless Otherwise Specified (Continued) A Die Characteristics SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 98 PROCESS: Submicron CMOS FN6662.1 August 25, 2008 ...

Page 18

... INDEX AREA (DATUM N (Nd-1)Xe REF. BOTTOM VIEW C L (A1 SECTION "C-C" FOR ODD TERMINAL/SIDE 18 ISL54211 L10.3x3A 0. LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE 2X 0. SYMBOL 0. 0. NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994. ...

Page 19

... 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 19 ISL54211 L10.1.8x1. ...

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